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* [v2 PATCH 0/4] Rockchip Type-C and DispplayPort driver
@ 2016-06-13  9:39 Chris Zhong
  2016-06-13  9:39 ` [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY Chris Zhong
                   ` (3 more replies)
  0 siblings, 4 replies; 18+ messages in thread
From: Chris Zhong @ 2016-06-13  9:39 UTC (permalink / raw)
  To: dianders, tfiga, heiko, yzq, groeck
  Cc: linux-rockchip, Chris Zhong, devicetree, Kumar Gala, Mark Yao,
	linux-kernel, Ian Campbell, Rob Herring, dri-devel, Pawel Moll,
	Kishon Vijay Abraham I, Mark Rutland, linux-arm-kernel,
	David Airlie


Hi all

This series patch is for rockchip Type-C phy and DisplayPort controller
driver.

The USB Type-C PHY is designed to support the USB3 and DP applications.
The PHY basically has two main components: USB3 and DisplyPort. USB3
operates in SuperSpeed mode and the DP can operate at RBR, HBR and HBR2
data rates. The Type-C cable orientation detection and Power Delivery
(PD) is accomplished using a PD PHY or a exernal PD chip.

The DP controller is compliant with DisplayPort Specification,
Version 1.3, This IP is compatible with the rockchip type-c PHY IP.
There is a uCPU in DP controller, it need a firmware to work, please
put the firmware file to /lib/firmware/cdn/dptx.bin. The uCPU in charge
of aux communication and link training, the host use mailbox to
communicate with the ucpu.

The PHY driver has register a notification with extcon API, to get the
alt mode from PD, the PD driver need call the devm_extcon_dev_allocate
to create a extcon device and use extcon_set_state to notify PHY and
DP controller.

About the DP audio, cdn-dp registered 2 DAIs: 0 is I2S, 1 is SPDIF.
We can reference them in simple-card.

This series is based on Mark Yao's branch:
https://github.com/markyzq/kernel-drm-rockchip/tree/drm-rockchip-next-2016-05-23

I test this patches on the rk3399-evb board, with a fusb302 driver,
this branch has no rk3399.dtsi, so the patch about dts is not included
in this series.


Changes in v2:
- add some registers description
- select RESET_CONTROLLER
- alphabetic order
- modify some spelling mistakes
- make mode cleaner
- use bool for enable/disable
- check all of the return value
- return a better err number
- use more readx_poll_timeout()
- clk_disable_unprepare(tcphy->clk_ref);
- remove unuse functions, rockchip_typec_phy_power_on/off
- remove unnecessary typecast from void *
- use dts node to distinguish between phys.
- Alphabetic order
- remove excess error message
- use define clk_rate
- check all return value
- remove dev_set_name(dp->dev, "cdn-dp");
- use schedule_delayed_work
- remove never-called functions
- remove some unnecessary ()

Changes in v1:
- add extcon node description
- move the registers in phy driver
- remove the suffix of reset
- update the licence note
- init core clock to 50MHz
- use extcon API
- remove unused global
- add some comments for magic num
- change usleep_range(1000, 2000) tousleep_range(1000, 1050)
- remove __func__ from dev_err
- return err number when get clk failed
- remove ADDR_ADJ define
- use devm_clk_get(&pdev->dev, "tcpdcore")
- add extcon node description
- add #sound-dai-cells description
- use extcon API
- use hdmi-codec for the DP Asoc
- do not initialize the "ret"
- printk a err log when drm_of_encoder_active_endpoint_id
- modify the dclk pin_pol to a single line

Chris Zhong (4):
  Documentation: bindings: add dt doc for Rockchip USB Type-C PHY
  phy: Add USB Type-C PHY driver for rk3399
  Documentation: bindings: add dt documentation for cdn DP controller
  drm/rockchip: cdn-dp: add cdn DP support for rk3399

 .../bindings/display/rockchip/cdn-dp-rockchip.txt  |  62 ++
 .../devicetree/bindings/phy/phy-rockchip-typec.txt |  77 ++
 drivers/gpu/drm/rockchip/Kconfig                   |   9 +
 drivers/gpu/drm/rockchip/Makefile                  |   1 +
 drivers/gpu/drm/rockchip/cdn-dp-core.c             | 694 +++++++++++++++
 drivers/gpu/drm/rockchip/cdn-dp-core.h             | 108 +++
 drivers/gpu/drm/rockchip/cdn-dp-reg.c              | 717 ++++++++++++++++
 drivers/gpu/drm/rockchip/cdn-dp-reg.h              | 404 +++++++++
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c        |   6 +-
 drivers/gpu/drm/rockchip/rockchip_drm_vop.h        |   2 +
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c        |   2 +
 drivers/phy/Kconfig                                |   8 +
 drivers/phy/Makefile                               |   1 +
 drivers/phy/phy-rockchip-typec.c                   | 952 +++++++++++++++++++++
 include/linux/phy/phy-rockchip-typec.h             |  20 +
 15 files changed, 3062 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
 create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
 create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-core.c
 create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-core.h
 create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-reg.c
 create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-reg.h
 create mode 100644 drivers/phy/phy-rockchip-typec.c
 create mode 100644 include/linux/phy/phy-rockchip-typec.h

-- 
2.6.3

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY
  2016-06-13  9:39 [v2 PATCH 0/4] Rockchip Type-C and DispplayPort driver Chris Zhong
@ 2016-06-13  9:39 ` Chris Zhong
  2016-06-14 22:51   ` Rob Herring
  2016-06-15 22:11   ` Heiko Stuebner
  2016-06-13  9:39 ` [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399 Chris Zhong
                   ` (2 subsequent siblings)
  3 siblings, 2 replies; 18+ messages in thread
From: Chris Zhong @ 2016-06-13  9:39 UTC (permalink / raw)
  To: dianders, tfiga, heiko, yzq, groeck
  Cc: linux-rockchip, Chris Zhong, Rob Herring, Pawel Moll,
	Mark Rutland, Ian Campbell, Kumar Gala, devicetree,
	linux-arm-kernel, linux-kernel

This patch adds a binding that describes the Rockchip USB Type-C PHY
for rk3399

Signed-off-by: Chris Zhong <zyw@rock-chips.com>

---

Changes in v2:
- add some registers description

Changes in v1:
- add extcon node description
- move the registers in phy driver
- remove the suffix of reset

 .../devicetree/bindings/phy/phy-rockchip-typec.txt | 77 ++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt

diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
new file mode 100644
index 0000000..430920c
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
@@ -0,0 +1,77 @@
+* ROCKCHIP type-c PHY
+---------------------
+
+Required properties:
+ - compatible : should be "rockchip,rk3399-typec-phy0" or
+			 "rockchip,rk3399-typec-phy1"
+ - reg: Address and length of the usb phy control register set
+ - rockchip,grf : phandle to the syscon managing the "general
+   register files"
+ - clocks : phandle + clock specifier for the phy clocks
+ - clock-names : string, clock name, must be "tcpdcore", "tcpdphy_ref";
+ - resets : a list of phandle + reset specifier pairs
+ - reset-names : string reset name, must be:
+		 "tcphy", "tcphy_pipe", "uphy_tcphy"
+ - #phy-cells : Must be 0.  See ./phy-bindings.txt for details.
+ - extcon : extcon specifier for the Power Delivery
+
+Note, there are 2 type-c phys for RK3399, and they are almost identical, except
+these registers(description below), every register node contains 3 sections:
+offset, enable bit, write mask bit.
+ - rockchip,typec_conn_dir : the register of type-c connector direction,
+   for type-c phy0, it must be <0xe580 0 16>;
+   for type-c phy1, it must be <0xe58c 0 16>;
+ - rockchip,usb3tousb2_en : the register of type-c force usb3 to usb2 enable
+   control.
+   for type-c phy0, it must be <0xe580 3 19>;
+   for type-c phy1, it must be <0xe58c 3 19>;
+ - rockchip,external_psm : the register of type-c phy external psm clock
+   selection.
+   for type-c phy0, it must be <0xe588 14 30>;
+   for type-c phy1, it must be <0xe594 14 30>;
+ - rockchip,pipe_status : the register of type-c phy pipe status.
+   for type-c phy0, it must be <0xe5c0 0 0>;
+   for type-c phy1, it must be <0xe5c0 16 16>;
+ - rockchip,uphy_dp_sel : the register of type-c phy selection for DP
+   for type-c phy0, it must be <0x6268 19 19>;
+   for type-c phy1, it must be <0x6268 3 19>;
+
+Example:
+	tcphy0: phy@ff7c0000 {
+		compatible = "rockchip,rk3399-typec-phy0";
+		reg = <0x0 0xff7c0000 0x0 0x40000>;
+		#phy-cells = <0>;
+		extcon = <&fusb1>;
+		rockchip,grf = <&grf>;
+		clocks = <&cru SCLK_UPHY0_TCPDCORE>,
+			 <&cru SCLK_UPHY0_TCPDPHY_REF>;
+		clock-names = "tcpdcore", "tcpdphy_ref";
+		resets = <&cru SRST_UPHY0>,
+			 <&cru SRST_UPHY0_PIPE_L00>,
+			 <&cru SRST_P_UPHY0_TCPHY>;
+		reset-names = "tcphy", "tcphy_pipe", "uphy_tcphy";
+		rockchip,typec_conn_dir = <0xe580 0 16>;
+		rockchip,usb3tousb2_en = <0xe580 3 19>;
+		rockchip,external_psm = <0xe588 14 30>;
+		rockchip,pipe_status = <0xe5c0 0 0>;
+		rockchip,uphy_dp_sel = <0x6268 19 19>;
+	};
+
+	tcphy1: phy@ff800000 {
+		compatible = "rockchip,rk3399-typec-phy1";
+		reg = <0x0 0xff800000 0x0 0x40000>;
+		#phy-cells = <0>;
+		rockchip,grf = <&grf>;
+		clocks = <&cru SCLK_UPHY1_TCPDCORE>,
+			 <&cru SCLK_UPHY1_TCPDPHY_REF>;
+		clock-names = "tcpdcore", "tcpdphy_ref";
+		resets = <&cru SRST_UPHY1>,
+		         <&cru SRST_UPHY1_PIPE_L00>,
+			 <&cru SRST_P_UPHY1_TCPHY>;
+		reset-names = "tcphy", "tcphy_pipe", "uphy_tcphy";
+		rockchip,typec_conn_dir = <0xe58c 0 16>;
+		rockchip,usb3tousb2_en = <0xe58c 3 19>;
+		rockchip,external_psm = <0xe594 14 30>;
+		rockchip,pipe_status = <0xe5c0 16 16>;
+		rockchip,uphy_dp_sel = <0x6268 3 19>;
+	};
-- 
2.6.3

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399
  2016-06-13  9:39 [v2 PATCH 0/4] Rockchip Type-C and DispplayPort driver Chris Zhong
  2016-06-13  9:39 ` [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY Chris Zhong
@ 2016-06-13  9:39 ` Chris Zhong
  2016-06-16 12:48   ` Kever Yang
                     ` (3 more replies)
  2016-06-13  9:39 ` [v2 PATCH 3/4] Documentation: bindings: add dt documentation for cdn DP controller Chris Zhong
  2016-06-13  9:39 ` [v2 PATCH 4/4] drm/rockchip: cdn-dp: add cdn DP support for rk3399 Chris Zhong
  3 siblings, 4 replies; 18+ messages in thread
From: Chris Zhong @ 2016-06-13  9:39 UTC (permalink / raw)
  To: dianders, tfiga, heiko, yzq, groeck
  Cc: linux-rockchip, Chris Zhong, Kever Yang, Kishon Vijay Abraham I,
	linux-kernel, linux-arm-kernel

Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
Type-C PHY is designed to support the USB3 and DP applications. The
PHY basically has two main components: USB3 and DisplyPort. USB3
operates in SuperSpeed mode and the DP can operate at RBR, HBR and
HBR2 data rates.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>

---

Changes in v2:
- select RESET_CONTROLLER
- alphabetic order
- modify some spelling mistakes
- make mode cleaner
- use bool for enable/disable
- check all of the return value
- return a better err number
- use more readx_poll_timeout()
- clk_disable_unprepare(tcphy->clk_ref);
- remove unuse functions, rockchip_typec_phy_power_on/off
- remove unnecessary typecast from void *
- use dts node to distinguish between phys.

Changes in v1:
- update the licence note
- init core clock to 50MHz
- use extcon API
- remove unused global
- add some comments for magic num
- change usleep_range(1000, 2000) tousleep_range(1000, 1050)
- remove __func__ from dev_err
- return err number when get clk failed
- remove ADDR_ADJ define
- use devm_clk_get(&pdev->dev, "tcpdcore")

 drivers/phy/Kconfig                    |   8 +
 drivers/phy/Makefile                   |   1 +
 drivers/phy/phy-rockchip-typec.c       | 952 +++++++++++++++++++++++++++++++++
 include/linux/phy/phy-rockchip-typec.h |  20 +
 4 files changed, 981 insertions(+)
 create mode 100644 drivers/phy/phy-rockchip-typec.c
 create mode 100644 include/linux/phy/phy-rockchip-typec.h

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 26566db..ec87b3a 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -351,6 +351,14 @@ config PHY_ROCKCHIP_DP
 	help
 	  Enable this to support the Rockchip Display Port PHY.
 
+config PHY_ROCKCHIP_TYPEC
+	tristate "Rockchip TYPEC PHY Driver"
+	depends on ARCH_ROCKCHIP && OF
+	select GENERIC_PHY
+	select RESET_CONTROLLER
+	help
+	  Enable this to support the Rockchip USB TYPEC PHY.
+
 config PHY_ST_SPEAR1310_MIPHY
 	tristate "ST SPEAR1310-MIPHY driver"
 	select GENERIC_PHY
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 24596a9..91fa413 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_PHY_QCOM_APQ8064_SATA)	+= phy-qcom-apq8064-sata.o
 obj-$(CONFIG_PHY_ROCKCHIP_USB) += phy-rockchip-usb.o
 obj-$(CONFIG_PHY_ROCKCHIP_EMMC) += phy-rockchip-emmc.o
 obj-$(CONFIG_PHY_ROCKCHIP_DP)		+= phy-rockchip-dp.o
+obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o
 obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA)	+= phy-qcom-ipq806x-sata.o
 obj-$(CONFIG_PHY_ST_SPEAR1310_MIPHY)	+= phy-spear1310-miphy.o
 obj-$(CONFIG_PHY_ST_SPEAR1340_MIPHY)	+= phy-spear1340-miphy.o
diff --git a/drivers/phy/phy-rockchip-typec.c b/drivers/phy/phy-rockchip-typec.c
new file mode 100644
index 0000000..230e074
--- /dev/null
+++ b/drivers/phy/phy-rockchip-typec.c
@@ -0,0 +1,952 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ *         Kever Yang <kever.yang@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/extcon.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy.h>
+#include <linux/phy/phy-rockchip-typec.h>
+
+#define CMN_SSM_BANDGAP			(0x21 << 2)
+#define CMN_SSM_BIAS			(0x22 << 2)
+#define CMN_PLLSM0_PLLEN		(0x29 << 2)
+#define CMN_PLLSM0_PLLPRE		(0x2a << 2)
+#define CMN_PLLSM0_PLLVREF		(0x2b << 2)
+#define CMN_PLLSM0_PLLLOCK		(0x2c << 2)
+#define CMN_PLLSM1_PLLEN		(0x31 << 2)
+#define CMN_PLLSM1_PLLPRE		(0x32 << 2)
+#define CMN_PLLSM1_PLLVREF		(0x33 << 2)
+#define CMN_PLLSM1_PLLLOCK		(0x34 << 2)
+#define CMN_PLLSM1_USER_DEF_CTRL	(0x37 << 2)
+#define CMN_ICAL_OVRD			(0xc1 << 2)
+#define CMN_PLL0_VCOCAL_OVRD		(0x83 << 2)
+#define CMN_PLL0_VCOCAL_INIT		(0x84 << 2)
+#define CMN_PLL0_VCOCAL_ITER		(0x85 << 2)
+#define CMN_PLL0_LOCK_REFCNT_START	(0x90 << 2)
+#define CMN_PLL0_LOCK_PLLCNT_START	(0x92 << 2)
+#define CMN_PLL0_LOCK_PLLCNT_THR	(0x93 << 2)
+#define CMN_PLL0_INTDIV			(0x94 << 2)
+#define CMN_PLL0_FRACDIV		(0x95 << 2)
+#define CMN_PLL0_HIGH_THR		(0x96 << 2)
+#define CMN_PLL0_DSM_DIAG		(0x97 << 2)
+#define CMN_PLL0_SS_CTRL1		(0x98 << 2)
+#define CMN_PLL0_SS_CTRL2		(0x99 << 2)
+#define CMN_PLL1_VCOCAL_START		(0xa1 << 2)
+#define CMN_PLL1_VCOCAL_OVRD		(0xa3 << 2)
+#define CMN_PLL1_VCOCAL_INIT		(0xa4 << 2)
+#define CMN_PLL1_VCOCAL_ITER		(0xa5 << 2)
+#define CMN_PLL1_LOCK_REFCNT_START	(0xb0 << 2)
+#define CMN_PLL1_LOCK_PLLCNT_START	(0xb2 << 2)
+#define CMN_PLL1_LOCK_PLLCNT_THR	(0xb3 << 2)
+#define CMN_PLL1_INTDIV			(0xb4 << 2)
+#define CMN_PLL1_FRACDIV		(0xb5 << 2)
+#define CMN_PLL1_HIGH_THR		(0xb6 << 2)
+#define CMN_PLL1_DSM_DIAG		(0xb7 << 2)
+#define CMN_PLL1_SS_CTRL1		(0xb8 << 2)
+#define CMN_PLL1_SS_CTRL2		(0xb9 << 2)
+#define CMN_RXCAL_OVRD			(0xd1 << 2)
+#define CMN_TXPUCAL_CTRL		(0xe0 << 2)
+#define CMN_TXPUCAL_OVRD		(0xe1 << 2)
+#define CMN_TXPDCAL_OVRD		(0xf1 << 2)
+#define CMN_DIAG_PLL0_FBH_OVRD		(0x1c0 << 2)
+#define CMN_DIAG_PLL0_FBL_OVRD		(0x1c1 << 2)
+#define CMN_DIAG_PLL0_OVRD		(0x1c2 << 2)
+#define CMN_DIAG_PLL0_V2I_TUNE		(0x1c5 << 2)
+#define CMN_DIAG_PLL0_CP_TUNE		(0x1c6 << 2)
+#define CMN_DIAG_PLL0_LF_PROG		(0x1c7 << 2)
+#define CMN_DIAG_PLL1_FBH_OVRD		(0x1d0 << 2)
+#define CMN_DIAG_PLL1_FBL_OVRD		(0x1d1 << 2)
+#define CMN_DIAG_PLL1_OVRD		(0x1d2 << 2)
+#define CMN_DIAG_PLL1_V2I_TUNE		(0x1d5 << 2)
+#define CMN_DIAG_PLL1_CP_TUNE		(0x1d6 << 2)
+#define CMN_DIAG_PLL1_LF_PROG		(0x1d7 << 2)
+#define CMN_DIAG_PLL1_PTATIS_TUNE1	(0x1d8 << 2)
+#define CMN_DIAG_PLL1_PTATIS_TUNE2	(0x1d9 << 2)
+#define CMN_DIAG_PLL1_INCLK_CTRL	(0x1da << 2)
+#define CMN_DIAG_HSCLK_SEL		(0x1e0 << 2)
+
+#define XCVR_PSM_RCTRL(n)		((0x4001 | (n << 9)) << 2)
+#define XCVR_PSM_CAL_TMR(n)		((0x4002 | (n << 9)) << 2)
+#define XCVR_PSM_A0IN_TMR(n)		((0x4003 | (n << 9)) << 2)
+#define TX_TXCC_CAL_SCLR_MULT(n)	((0x4047 | (n << 9)) << 2)
+#define TX_TXCC_CPOST_MULT_00(n)	((0x404c | (n << 9)) << 2)
+#define TX_TXCC_CPOST_MULT_01(n)	((0x404d | (n << 9)) << 2)
+#define TX_TXCC_CPOST_MULT_10(n)	((0x404e | (n << 9)) << 2)
+#define TX_TXCC_CPOST_MULT_11(n)	((0x404f | (n << 9)) << 2)
+#define TX_TXCC_MGNFS_MULT_000(n)	((0x4050 | (n << 9)) << 2)
+#define TX_TXCC_MGNFS_MULT_001(n)	((0x4051 | (n << 9)) << 2)
+#define TX_TXCC_MGNFS_MULT_010(n)	((0x4052 | (n << 9)) << 2)
+#define TX_TXCC_MGNFS_MULT_011(n)	((0x4053 | (n << 9)) << 2)
+#define TX_TXCC_MGNFS_MULT_100(n)	((0x4054 | (n << 9)) << 2)
+#define TX_TXCC_MGNFS_MULT_101(n)	((0x4055 | (n << 9)) << 2)
+#define TX_TXCC_MGNFS_MULT_110(n)	((0x4056 | (n << 9)) << 2)
+#define TX_TXCC_MGNFS_MULT_111(n)	((0x4057 | (n << 9)) << 2)
+#define XCVR_DIAG_PLLDRC_CTRL(n)	((0x40e0 | (n << 9)) << 2)
+#define XCVR_DIAG_BIDI_CTRL(n)		((0x40e8 | (n << 9)) << 2)
+#define XCVR_DIAG_LANE_FCM_EN_MGN(n)	((0x40f2 | (n << 9)) << 2)
+#define TX_PSC_A0(n)			((0x4100 | (n << 9)) << 2)
+#define TX_PSC_A1(n)			((0x4101 | (n << 9)) << 2)
+#define TX_PSC_A2(n)			((0x4102 | (n << 9)) << 2)
+#define TX_PSC_A3(n)			((0x4103 | (n << 9)) << 2)
+#define TX_RCVDET_CTRL(n)		((0x4120 | (n << 9)) << 2)
+#define TX_RCVDET_EN_TMR(n)		((0x4122 | (n << 9)) << 2)
+#define TX_RCVDET_ST_TMR(n)		((0x4123 | (n << 9)) << 2)
+#define TX_DIAG_TX_DRV(n)		((0x41e1 | (n << 9)) << 2)
+#define TX_DIAG_BGREF_PREDRV_DELAY	(0x41e7 << 2)
+#define TX_ANA_CTRL_REG_1		(0x5020 << 2)
+#define TX_ANA_CTRL_REG_2		(0x5021 << 2)
+#define TXDA_COEFF_CALC_CTRL		(0x5022 << 2)
+#define TX_DIG_CTRL_REG_2		(0x5024 << 2)
+#define TXDA_CYA_AUXDA_CYA		(0x5025 << 2)
+#define TX_ANA_CTRL_REG_3		(0x5026 << 2)
+#define TX_ANA_CTRL_REG_4		(0x5027 << 2)
+#define TX_ANA_CTRL_REG_5		(0x5029 << 2)
+
+#define RX_PSC_A0(n)			((0x8000 | (n << 9)) << 2)
+#define RX_PSC_A1(n)			((0x8001 | (n << 9)) << 2)
+#define RX_PSC_A2(n)			((0x8002 | (n << 9)) << 2)
+#define RX_PSC_A3(n)			((0x8003 | (n << 9)) << 2)
+#define RX_PSC_CAL(n)			((0x8006 | (n << 9)) << 2)
+#define RX_PSC_RDY(n)			((0x8007 | (n << 9)) << 2)
+#define RX_IQPI_ILL_CAL_OVRD		(0x8023 << 2)
+#define RX_EPI_ILL_CAL_OVRD		(0x8033 << 2)
+#define RX_SDCAL0_OVRD			(0x8041 << 2)
+#define RX_SDCAL1_OVRD			(0x8049 << 2)
+#define RX_SLC_INIT			(0x806d << 2)
+#define RX_SLC_RUN			(0x806e << 2)
+#define RX_CDRLF_CNFG2			(0x8081 << 2)
+#define RX_SIGDET_HL_FILT_TMR(n)	((0x8090 | (n << 9)) << 2)
+#define RX_SLC_IOP0_OVRD		(0x8101 << 2)
+#define RX_SLC_IOP1_OVRD		(0x8105 << 2)
+#define RX_SLC_QOP0_OVRD		(0x8109 << 2)
+#define RX_SLC_QOP1_OVRD		(0x810d << 2)
+#define RX_SLC_EOP0_OVRD		(0x8111 << 2)
+#define RX_SLC_EOP1_OVRD		(0x8115 << 2)
+#define RX_SLC_ION0_OVRD		(0x8119 << 2)
+#define RX_SLC_ION1_OVRD		(0x811d << 2)
+#define RX_SLC_QON0_OVRD		(0x8121 << 2)
+#define RX_SLC_QON1_OVRD		(0x8125 << 2)
+#define RX_SLC_EON0_OVRD		(0x8129 << 2)
+#define RX_SLC_EON1_OVRD		(0x812d << 2)
+#define RX_SLC_IEP0_OVRD		(0x8131 << 2)
+#define RX_SLC_IEP1_OVRD		(0x8135 << 2)
+#define RX_SLC_QEP0_OVRD		(0x8139 << 2)
+#define RX_SLC_QEP1_OVRD		(0x813d << 2)
+#define RX_SLC_EEP0_OVRD		(0x8141 << 2)
+#define RX_SLC_EEP1_OVRD		(0x8145 << 2)
+#define RX_SLC_IEN0_OVRD		(0x8149 << 2)
+#define RX_SLC_IEN1_OVRD		(0x814d << 2)
+#define RX_SLC_QEN0_OVRD		(0x8151 << 2)
+#define RX_SLC_QEN1_OVRD		(0x8155 << 2)
+#define RX_SLC_EEN0_OVRD		(0x8159 << 2)
+#define RX_SLC_EEN1_OVRD		(0x815d << 2)
+#define RX_DIAG_SIGDET_TUNE(n)		((0x81dc | (n << 9)) << 2)
+#define RX_DIAG_SC2C_DELAY		(0x81e1 << 2)
+
+#define PMA_LANE_CFG			(0xc000 << 2)
+#define PIPE_CMN_CTRL1			(0xc001 << 2)
+#define PIPE_CMN_CTRL2			(0xc002 << 2)
+#define PIPE_COM_LOCK_CFG1		(0xc003 << 2)
+#define PIPE_COM_LOCK_CFG2		(0xc004 << 2)
+#define PIPE_RCV_DET_INH		(0xc005 << 2)
+#define DP_MODE_CTL			(0xc008 << 2)
+#define DP_CLK_CTL			(0xc009 << 2)
+#define STS				(0xc00F << 2)
+#define PHY_ISO_CMN_CTRL		(0xc010 << 2)
+#define PHY_DP_TX_CTL			(0xc408 << 2)
+#define PMA_CMN_CTRL1			(0xc800 << 2)
+#define PHY_PMA_ISO_CMN_CTRL		(0xc810 << 2)
+#define PHY_ISOLATION_CTRL		(0xc81f << 2)
+#define PHY_PMA_ISO_XCVR_CTRL(n)	((0xcc11 | (n << 6)) << 2)
+#define PHY_PMA_ISO_LINK_MODE(n)	((0xcc12 | (n << 6)) << 2)
+#define PHY_PMA_ISO_PWRST_CTRL(n)	((0xcc13 | (n << 6)) << 2)
+#define PHY_PMA_ISO_TX_DATA_LO(n)	((0xcc14 | (n << 6)) << 2)
+#define PHY_PMA_ISO_TX_DATA_HI(n)	((0xcc15 | (n << 6)) << 2)
+#define PHY_PMA_ISO_RX_DATA_LO(n)	((0xcc16 | (n << 6)) << 2)
+#define PHY_PMA_ISO_RX_DATA_HI(n)	((0xcc17 | (n << 6)) << 2)
+#define TX_BIST_CTRL(n)			((0x4140 | (n << 9)) << 2)
+#define TX_BIST_UDDWR(n)		((0x4141 | (n << 9)) << 2)
+
+#define CMN_READY			BIT(0)
+
+#define DP_PLL_CLOCK_ENABLE		BIT(2)
+#define DP_PLL_ENABLE			BIT(0)
+#define DP_PLL_DATA_RATE_RBR		((2 << 12) | (4 << 8))
+#define DP_PLL_DATA_RATE_HBR		((2 << 12) | (4 << 8))
+#define DP_PLL_DATA_RATE_HBR2		((1 << 12) | (2 << 8))
+
+#define GRF_SOC_CON26			0x6268
+#define UPHY_DP_SEL			BIT(3)
+#define UPHY_DP_SEL_MASK		BIT(19)
+#define DPTX_HPD_SEL			(3 << 12)
+#define DPTX_HPD_DEL			(2 << 12)
+#define DPTX_HPD_SEL_MASK		(3 << 28)
+
+#define PHY_MODE_SET_TIMEOUT		1000000
+
+#define	MODE_DISCONNECT			0
+#define	MODE_UFP_USB			BIT(0)
+#define	MODE_DFP_USB			BIT(1)
+#define	MODE_DFP_DP			BIT(2)
+
+struct usb3phy_reg {
+	u32	offset;
+	u32	enable_bit;
+	u32	write_enable;
+};
+
+struct rockchip_usb3phy_port_cfg {
+	struct usb3phy_reg	typec_conn_dir;
+	struct usb3phy_reg	usb3tousb2_en;
+	struct usb3phy_reg	external_psm;
+	struct usb3phy_reg	pipe_status;
+	struct usb3phy_reg	uphy_dp_sel;
+};
+
+struct rockchip_typec_phy {
+	struct device		*dev;
+	void __iomem		*base;
+	struct extcon_dev	*extcon;
+	struct phy		*phy;
+	struct regmap		*grf_regs;
+	struct clk		*clk_core;
+	struct clk		*clk_ref;
+	struct reset_control	*phy_rst;
+	struct reset_control	*pipe_rst;
+	struct reset_control	*uphy_rst;
+	struct rockchip_usb3phy_port_cfg	port_cfgs;
+
+	/* to receive notifier from PD */
+	struct notifier_block	event_nb;
+	struct delayed_work	event_wq;
+
+	bool flip;
+	bool hpd_status;
+	int mode;
+	int map;
+};
+
+struct phy_reg {
+	int value;
+	int addr;
+};
+
+struct phy_reg usb_pll_cfg[] = {
+	{0xf0,		CMN_PLL0_VCOCAL_INIT},
+	{0x18,		CMN_PLL0_VCOCAL_ITER},
+	{0xd0,		CMN_PLL0_INTDIV},
+	{0x4a4a,	CMN_PLL0_FRACDIV},
+	{0x34,		CMN_PLL0_HIGH_THR},
+	{0x1ee,		CMN_PLL0_SS_CTRL1},
+	{0x7f03,	CMN_PLL0_SS_CTRL2},
+	{0x20,		CMN_PLL0_DSM_DIAG},
+	{0,		CMN_DIAG_PLL0_OVRD},
+	{0,		CMN_DIAG_PLL0_FBH_OVRD},
+	{0,		CMN_DIAG_PLL0_FBL_OVRD},
+	{0x7,		CMN_DIAG_PLL0_V2I_TUNE},
+	{0x45,		CMN_DIAG_PLL0_CP_TUNE},
+	{0x8,		CMN_DIAG_PLL0_LF_PROG},
+};
+
+struct phy_reg dp_pll_cfg[] = {
+	{0xf0,		CMN_PLL1_VCOCAL_INIT},
+	{0x18,		CMN_PLL1_VCOCAL_ITER},
+	{0x30b9,	CMN_PLL1_VCOCAL_START},
+	{0x21c,		CMN_PLL1_INTDIV},
+	{0,		CMN_PLL1_FRACDIV},
+	{0x5,		CMN_PLL1_HIGH_THR},
+	{0x35,		CMN_PLL1_SS_CTRL1},
+	{0x7f1e,	CMN_PLL1_SS_CTRL2},
+	{0x20,		CMN_PLL1_DSM_DIAG},
+	{0,		CMN_PLLSM1_USER_DEF_CTRL},
+	{0,		CMN_DIAG_PLL1_OVRD},
+	{0,		CMN_DIAG_PLL1_FBH_OVRD},
+	{0,		CMN_DIAG_PLL1_FBL_OVRD},
+	{0x6,		CMN_DIAG_PLL1_V2I_TUNE},
+	{0x45,		CMN_DIAG_PLL1_CP_TUNE},
+	{0x8,		CMN_DIAG_PLL1_LF_PROG},
+	{0x100,		CMN_DIAG_PLL1_PTATIS_TUNE1},
+	{0x7,		CMN_DIAG_PLL1_PTATIS_TUNE2},
+	{0x4,		CMN_DIAG_PLL1_INCLK_CTRL},
+};
+
+static void tcphy_cfg_24m(struct rockchip_typec_phy *tcphy,
+			  u32 num_lanes)
+{
+	u32 i;
+
+	/*
+	 * cmn_ref_clk_sel = 3, select the 24Mhz for clk parent
+	 * cmn_psm_clk_dig_div = 2, set the clk division to 2
+	 */
+	writel(0x830, tcphy->base + PMA_CMN_CTRL1);
+	for (i = 0; i < num_lanes; i++) {
+		/*
+		 * The following PHY configuration assumes a 24 MHz reference
+		 * clock.
+		 */
+		writel(0x90, tcphy->base + XCVR_DIAG_LANE_FCM_EN_MGN(i));
+		writel(0x960, tcphy->base + TX_RCVDET_EN_TMR(i));
+		writel(0x30, tcphy->base + TX_RCVDET_ST_TMR(i));
+	}
+}
+
+static void tcphy_cfg_usb_pll(struct rockchip_typec_phy *tcphy)
+{
+	u32 rdata;
+	u32 i;
+
+	/*
+	 * Selects which PLL clock will be driven on the analog high speed
+	 * clock 0: PLL 0 div 1.
+	 */
+	rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
+	writel(rdata & 0xfffc, tcphy->base + CMN_DIAG_HSCLK_SEL);
+
+	/* load the configuration of PLL0 */
+	for (i = 0; i < ARRAY_SIZE(usb_pll_cfg); i++)
+		writel(usb_pll_cfg[i].value, tcphy->base + usb_pll_cfg[i].addr);
+}
+
+static void tcphy_cfg_dp_pll(struct rockchip_typec_phy *tcphy)
+{
+	u32 rdata;
+	u32 i;
+
+	/* set the default mode to RBR */
+	writel(DP_PLL_CLOCK_ENABLE | DP_PLL_ENABLE | DP_PLL_DATA_RATE_RBR,
+	       tcphy->base + DP_CLK_CTL);
+
+	/*
+	 * Selects which PLL clock will be driven on the analog high speed
+	 * clock 1: PLL 1 div 2.
+	 */
+	rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
+	rdata = (rdata & 0xffcf) | 0x30;
+	writel(rdata, tcphy->base + CMN_DIAG_HSCLK_SEL);
+
+	/* load the configuration of PLL1 */
+	for (i = 0; i < ARRAY_SIZE(dp_pll_cfg); i++)
+		writel(dp_pll_cfg[i].value, tcphy->base + dp_pll_cfg[i].addr);
+}
+
+static void tcphy_tx_usb_cfg_lane(struct rockchip_typec_phy *tcphy,
+				  u32 lane)
+{
+	writel(0x7799, tcphy->base + TX_PSC_A0(lane));
+	writel(0x7798, tcphy->base + TX_PSC_A1(lane));
+	writel(0x5098, tcphy->base + TX_PSC_A2(lane));
+	writel(0x5098, tcphy->base + TX_PSC_A3(lane));
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_000(lane));
+	writel(0xbf, tcphy->base + XCVR_DIAG_BIDI_CTRL(lane));
+}
+
+static void tcphy_rx_usb_cfg_lane(struct rockchip_typec_phy *tcphy,
+				  u32 lane)
+{
+	writel(0xa6fd, tcphy->base + RX_PSC_A0(lane));
+	writel(0xa6fd, tcphy->base + RX_PSC_A1(lane));
+	writel(0xa410, tcphy->base + RX_PSC_A2(lane));
+	writel(0x2410, tcphy->base + RX_PSC_A3(lane));
+	writel(0x23ff, tcphy->base + RX_PSC_CAL(lane));
+	writel(0x13, tcphy->base + RX_SIGDET_HL_FILT_TMR(lane));
+	writel(0x1004, tcphy->base + RX_DIAG_SIGDET_TUNE(lane));
+	writel(0x2010, tcphy->base + RX_PSC_RDY(lane));
+	writel(0xfb, tcphy->base + XCVR_DIAG_BIDI_CTRL(lane));
+}
+
+static void tcphy_dp_cfg_lane(struct rockchip_typec_phy *tcphy,
+			      u32 lane)
+{
+	u32 rdata;
+
+	writel(0xbefc, tcphy->base + XCVR_PSM_RCTRL(lane));
+	writel(0x6799, tcphy->base + TX_PSC_A0(lane));
+	writel(0x6798, tcphy->base + TX_PSC_A1(lane));
+	writel(0x98, tcphy->base + TX_PSC_A2(lane));
+	writel(0x98, tcphy->base + TX_PSC_A3(lane));
+
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_000(lane));
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_001(lane));
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_010(lane));
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_011(lane));
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_100(lane));
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_101(lane));
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_110(lane));
+	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_111(lane));
+	writel(0, tcphy->base + TX_TXCC_CPOST_MULT_10(lane));
+	writel(0, tcphy->base + TX_TXCC_CPOST_MULT_01(lane));
+	writel(0, tcphy->base + TX_TXCC_CPOST_MULT_00(lane));
+	writel(0, tcphy->base + TX_TXCC_CPOST_MULT_11(lane));
+
+	writel(0x128, tcphy->base + TX_TXCC_CAL_SCLR_MULT(lane));
+	writel(0x700, tcphy->base + TX_DIAG_TX_DRV(lane));
+
+	rdata = readl(tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
+	rdata = (rdata & 0x8fff) | 0x6000;
+	writel(rdata, tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
+}
+
+static void tcphy_cfg_pin_assign(struct rockchip_typec_phy *tcphy)
+{
+	switch (tcphy->map) {
+	case PIN_MAP_A:
+		writel(0x19d5, tcphy->base + PMA_LANE_CFG);
+		break;
+	case PIN_MAP_B:
+		writel(0x1500, tcphy->base + PMA_LANE_CFG);
+		break;
+	case PIN_MAP_C:
+	case PIN_MAP_E:
+		writel(0x51d9, tcphy->base + PMA_LANE_CFG);
+		break;
+	case PIN_MAP_D:
+	case PIN_MAP_F:
+		writel(0x5100, tcphy->base + PMA_LANE_CFG);
+		break;
+	};
+}
+
+static inline int property_enable(struct rockchip_typec_phy *tcphy,
+				  const struct usb3phy_reg *reg, bool en)
+{
+	int mask = 1 << reg->write_enable;
+	int val = en << reg->enable_bit;
+
+	return regmap_write(tcphy->grf_regs, reg->offset, val | mask);
+}
+
+static void tcphy_lanes_config(struct rockchip_typec_phy *tcphy)
+{
+	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
+	u32 i;
+
+	property_enable(tcphy, &cfg->typec_conn_dir, tcphy->flip);
+
+	tcphy_cfg_24m(tcphy, 0x4);
+
+	switch (tcphy->mode) {
+	case MODE_UFP_USB:
+	case MODE_DFP_USB:
+		tcphy_cfg_usb_pll(tcphy);
+		if (tcphy->flip) {
+			tcphy_tx_usb_cfg_lane(tcphy, 3);
+			tcphy_rx_usb_cfg_lane(tcphy, 2);
+		} else {
+			tcphy_tx_usb_cfg_lane(tcphy, 0);
+			tcphy_rx_usb_cfg_lane(tcphy, 1);
+		}
+		break;
+	case MODE_DFP_DP:
+		tcphy_cfg_dp_pll(tcphy);
+		for (i = 0; i < 4; i++)
+			tcphy_dp_cfg_lane(tcphy, i);
+		break;
+	case MODE_DFP_USB | MODE_DFP_DP:
+		tcphy_cfg_usb_pll(tcphy);
+		tcphy_cfg_dp_pll(tcphy);
+		if (tcphy->flip) {
+			tcphy_tx_usb_cfg_lane(tcphy, 3);
+			tcphy_rx_usb_cfg_lane(tcphy, 2);
+			tcphy_dp_cfg_lane(tcphy, 0);
+			tcphy_dp_cfg_lane(tcphy, 1);
+		} else {
+			tcphy_tx_usb_cfg_lane(tcphy, 0);
+			tcphy_rx_usb_cfg_lane(tcphy, 1);
+			tcphy_dp_cfg_lane(tcphy, 2);
+			tcphy_dp_cfg_lane(tcphy, 3);
+		}
+		break;
+	}
+}
+
+static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
+{
+	int rdata, rdata2, val;
+
+	/* disable txda_cal_latch_en for rewrite the calibration values */
+	rdata = readl(tcphy->base + TX_ANA_CTRL_REG_1);
+	val = rdata & 0xdfff;
+	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
+
+	/*
+	 * read a resistor calibration code from CMN_TXPUCAL_CTRL[6:0] and
+	 * write it to TX_DIG_CTRL_REG_2[6:0], and delay 1ms to make sure it
+	 * works.
+	 */
+	rdata = readl(tcphy->base + TX_DIG_CTRL_REG_2);
+	rdata = rdata & 0xffc0;
+
+	rdata2 = readl(tcphy->base + CMN_TXPUCAL_CTRL);
+	rdata2 = rdata2 & 0x3f;
+
+	val = rdata | rdata2;
+	writel(val, tcphy->base + TX_DIG_CTRL_REG_2);
+	usleep_range(1000, 1050);
+
+	/*
+	 * Enable signal for latch that sample and holds calibration values.
+	 * Activate this signal for 1 clock cycle to sample new calibration
+	 * values.
+	 */
+	rdata = readl(tcphy->base + TX_ANA_CTRL_REG_1);
+	val = rdata | 0x2000;
+	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
+	usleep_range(150, 200);
+
+	/* set TX Voltage Level and TX Deemphasis to 0 */
+	writel(0, tcphy->base + PHY_DP_TX_CTL);
+	/* re-enable decap */
+	writel(0x100, tcphy->base + TX_ANA_CTRL_REG_2);
+	writel(0x300, tcphy->base + TX_ANA_CTRL_REG_2);
+	writel(0x2008, tcphy->base + TX_ANA_CTRL_REG_1);
+	writel(0x2018, tcphy->base + TX_ANA_CTRL_REG_1);
+
+	writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
+
+	/*
+	 * Programs txda_drv_ldo_prog[15:0], Sets driver LDO
+	 * voltage 16'h1001 for DP-AUX-TX and RX
+	 */
+	writel(0x1001, tcphy->base + TX_ANA_CTRL_REG_4);
+
+	/* re-enables Bandgap reference for LDO */
+	writel(0x2098, tcphy->base + TX_ANA_CTRL_REG_1);
+	writel(0x2198, tcphy->base + TX_ANA_CTRL_REG_1);
+
+	/*
+	 * re-enables the transmitter pre-driver, driver data selection MUX,
+	 * and receiver detect circuits.
+	 */
+	writel(0x301, tcphy->base + TX_ANA_CTRL_REG_2);
+	writel(0x303, tcphy->base + TX_ANA_CTRL_REG_2);
+
+	/*
+	 * Controls auxda_polarity, which selects the polarity of the xcvr
+	 * 1'b1 : Reverses the polarity (If TYPEC, Pulls ups aux_p and pull
+	 * down aux_m)
+	 * 1'b0 : Normal polarity (if TYPE_C, pulls up aux_m and pulls down
+	 * aux_p)
+	 */
+	if (tcphy->flip)
+		writel(0xa078, tcphy->base + TX_ANA_CTRL_REG_1);
+	else
+		writel(0xb078, tcphy->base + TX_ANA_CTRL_REG_1);
+
+	writel(0, tcphy->base + TX_ANA_CTRL_REG_3);
+	writel(0, tcphy->base + TX_ANA_CTRL_REG_4);
+	writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
+
+	/*
+	 * Controls low_power_swing_en, set the voltage swing of the driver
+	 * to 400mv. The values	below are peak to peak (differential) values.
+	 */
+	writel(4, tcphy->base + TXDA_COEFF_CALC_CTRL);
+	writel(0, tcphy->base + TXDA_CYA_AUXDA_CYA);
+
+	/* Controls tx_high_z_tm_en */
+	val = readl(tcphy->base + TX_DIG_CTRL_REG_2);
+	val |= BIT(15);
+	writel(val, tcphy->base + TX_DIG_CTRL_REG_2);
+}
+
+static void tcphy_usb3_init(struct rockchip_typec_phy *tcphy)
+{
+	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
+	const struct usb3phy_reg *reg = &cfg->pipe_status;
+	int timeout;
+	unsigned int val;
+
+	/* wait TCPHY for pipe ready */
+	for (timeout = 0; timeout < 1000; timeout++) {
+		regmap_read(tcphy->grf_regs, reg->offset, &val);
+		if (!(val & BIT(reg->enable_bit)))
+			return;
+		usleep_range(10, 20);
+	}
+
+	dev_err(tcphy->dev, "wait pipe ready timeout!\n");
+}
+
+static int tcphy_dp_init(struct rockchip_typec_phy *tcphy)
+{
+	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
+	int ret, val;
+
+	property_enable(tcphy, &cfg->uphy_dp_sel, 1);
+
+	ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
+				 val, val & BIT(6), 1000, PHY_MODE_SET_TIMEOUT);
+	if (ret < 0) {
+		dev_err(tcphy->dev, "failed to wait TCPHY for DP ready\n");
+		return ret;
+	}
+
+	tcphy_dp_aux_calibration(tcphy);
+
+	if (tcphy->mode & MODE_DFP_USB)
+		writel(0xc101, tcphy->base + DP_MODE_CTL);
+	else
+		writel(0x0101, tcphy->base + DP_MODE_CTL);
+
+	ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
+				 val, val & BIT(4), 1000, PHY_MODE_SET_TIMEOUT);
+	if (ret < 0) {
+		dev_err(tcphy->dev, "failed to wait TCPHY enter A0\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int tcphy_phy_init(struct rockchip_typec_phy *tcphy)
+{
+	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
+	int ret, val;
+
+	ret = clk_prepare_enable(tcphy->clk_core);
+	if (ret) {
+		dev_err(tcphy->dev, "Failed to prepare_enable core clock\n");
+		return ret;
+	}
+
+	ret = clk_set_rate(tcphy->clk_core, 50000000);
+	if (ret) {
+		dev_err(tcphy->dev, "set type-c phy core clk rate failed\n");
+		goto clk_ref_failed;
+	}
+
+	ret = clk_prepare_enable(tcphy->clk_ref);
+	if (ret) {
+		dev_err(tcphy->dev, "Failed to prepare_enable ref clock\n");
+		goto clk_ref_failed;
+	}
+
+	reset_control_assert(tcphy->uphy_rst);
+	reset_control_assert(tcphy->phy_rst);
+	reset_control_assert(tcphy->pipe_rst);
+
+	/* select external psm clock */
+	property_enable(tcphy, &cfg->external_psm, 1);
+	property_enable(tcphy, &cfg->usb3tousb2_en, 0);
+
+	reset_control_deassert(tcphy->uphy_rst);
+
+	tcphy_lanes_config(tcphy);
+
+	tcphy_cfg_pin_assign(tcphy);
+
+	if (tcphy->mode & MODE_DFP_DP) {
+		if (tcphy->mode & MODE_DFP_USB)
+			writel(0xc104, tcphy->base + DP_MODE_CTL);
+		else
+			writel(0x0104, tcphy->base + DP_MODE_CTL);
+	}
+
+	reset_control_deassert(tcphy->phy_rst);
+
+	ret = readx_poll_timeout(readl, tcphy->base + PMA_CMN_CTRL1,
+				 val, val & CMN_READY, 10,
+				 PHY_MODE_SET_TIMEOUT);
+	if (ret < 0) {
+		dev_err(tcphy->dev, "wait pma ready timeout\n");
+		goto timeout_failed;
+	}
+
+	reset_control_deassert(tcphy->pipe_rst);
+
+	return 0;
+
+timeout_failed:
+	clk_disable_unprepare(tcphy->clk_ref);
+clk_ref_failed:
+	clk_disable_unprepare(tcphy->clk_core);
+	return ret;
+}
+
+static void tcphy_phy_deinit(struct rockchip_typec_phy *tcphy)
+{
+	clk_disable_unprepare(tcphy->clk_core);
+	clk_disable_unprepare(tcphy->clk_ref);
+}
+
+static const struct phy_ops rockchip_tcphy_ops = {
+	.owner          = THIS_MODULE,
+};
+
+static int tcphy_pd_event(struct notifier_block *nb,
+			  unsigned long event, void *priv)
+{
+	struct rockchip_typec_phy *tcphy;
+	struct extcon_dev *edev = priv;
+	int value = edev->state;
+	int mode;
+	u8 is_plugged, dfp;
+
+	tcphy = container_of(nb, struct rockchip_typec_phy, event_nb);
+
+	is_plugged = GET_PLUGGED(value);
+	tcphy->flip = GET_FLIP(value);
+	dfp = GET_DFP(value);
+	tcphy->map = GET_PIN_MAP(value);
+
+	if (is_plugged) {
+		if (!dfp)
+			mode = MODE_UFP_USB;
+		else if (tcphy->map & (PIN_MAP_B | PIN_MAP_D | PIN_MAP_F))
+			mode = MODE_DFP_USB | MODE_DFP_DP;
+		else if (tcphy->map & (PIN_MAP_A | PIN_MAP_C | PIN_MAP_E))
+			mode = MODE_DFP_DP;
+		else
+			mode = MODE_DFP_USB;
+	} else {
+		mode = MODE_DISCONNECT;
+	}
+
+	if (tcphy->mode != mode) {
+		tcphy->mode = mode;
+		schedule_delayed_work_on(0, &tcphy->event_wq, 0);
+	}
+
+	return 0;
+}
+
+static void tcphy_event_wq(struct work_struct *work)
+{
+	struct rockchip_typec_phy *tcphy;
+	int ret;
+
+	tcphy = container_of(work, struct rockchip_typec_phy, event_wq.work);
+
+	if (tcphy->mode == MODE_DISCONNECT) {
+		tcphy_phy_deinit(tcphy);
+		/* remove hpd sign for DP */
+		if (tcphy->hpd_status) {
+			regmap_write(tcphy->grf_regs, GRF_SOC_CON26,
+				     DPTX_HPD_SEL_MASK | DPTX_HPD_DEL);
+			tcphy->hpd_status = 0;
+		}
+	} else {
+		ret = tcphy_phy_init(tcphy);
+		if (ret)
+			return;
+
+		if (tcphy->mode & (MODE_UFP_USB | MODE_DFP_USB))
+			tcphy_usb3_init(tcphy);
+
+		if (tcphy->mode & MODE_DFP_DP) {
+			ret = tcphy_dp_init(tcphy);
+
+			/* set hpd sign for DP, if DP phy is ready */
+			if (!ret) {
+				regmap_write(tcphy->grf_regs, GRF_SOC_CON26,
+					     DPTX_HPD_SEL_MASK | DPTX_HPD_SEL);
+				tcphy->hpd_status = 1;
+			}
+		}
+	}
+}
+
+static int tcphy_get_param(struct device *dev,
+			   struct usb3phy_reg *reg,
+			   const char *name)
+{
+	int ret, buffer[3];
+
+	ret = of_property_read_u32_array(dev->of_node, name, buffer, 3);
+	if (ret) {
+		dev_err(dev, "Can not parse %s\n", name);
+		return ret;
+	}
+
+	reg->offset = buffer[0];
+	reg->enable_bit = buffer[1];
+	reg->write_enable = buffer[2];
+	return 0;
+}
+
+static int tcphy_parse_dt(struct rockchip_typec_phy *tcphy,
+			  struct device *dev)
+{
+	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
+	int ret;
+
+	ret = tcphy_get_param(dev, &cfg->typec_conn_dir,
+			      "rockchip,typec_conn_dir");
+	if (ret)
+		return ret;
+
+	ret = tcphy_get_param(dev, &cfg->usb3tousb2_en,
+			      "rockchip,usb3tousb2_en");
+	if (ret)
+		return ret;
+
+	ret = tcphy_get_param(dev, &cfg->external_psm,
+			      "rockchip,external_psm");
+	if (ret)
+		return ret;
+
+	ret = tcphy_get_param(dev, &cfg->pipe_status,
+			      "rockchip,pipe_status");
+	if (ret)
+		return ret;
+
+	ret = tcphy_get_param(dev, &cfg->uphy_dp_sel,
+			      "rockchip,uphy_dp_sel");
+	if (ret)
+		return ret;
+
+	tcphy->grf_regs = syscon_regmap_lookup_by_phandle(dev->of_node,
+							  "rockchip,grf");
+	if (IS_ERR(tcphy->grf_regs)) {
+		dev_err(dev, "could not find grf dt node\n");
+		return PTR_ERR(tcphy->grf_regs);
+	}
+
+	tcphy->clk_core = devm_clk_get(dev, "tcpdcore");
+	if (IS_ERR(tcphy->clk_core)) {
+		dev_err(dev, "could not get uphy core clock\n");
+		return PTR_ERR(tcphy->clk_core);
+	}
+
+	tcphy->clk_ref = devm_clk_get(dev, "tcpdphy_ref");
+	if (IS_ERR(tcphy->clk_ref)) {
+		dev_err(dev, "could not get uphy ref clock\n");
+		return PTR_ERR(tcphy->clk_ref);
+	}
+
+	tcphy->phy_rst = devm_reset_control_get(dev, "tcphy");
+	if (IS_ERR(tcphy->phy_rst)) {
+		dev_err(dev, "no phy_rst reset control found\n");
+		return PTR_ERR(tcphy->phy_rst);
+	}
+
+	tcphy->pipe_rst = devm_reset_control_get(dev, "tcphy_pipe");
+	if (IS_ERR(tcphy->pipe_rst)) {
+		dev_err(dev, "no pipe_rst reset control found\n");
+		return PTR_ERR(tcphy->pipe_rst);
+	}
+
+	tcphy->uphy_rst = devm_reset_control_get(dev, "uphy_tcphy");
+	if (IS_ERR(tcphy->uphy_rst)) {
+		dev_err(dev, "no uphy_rst reset control found\n");
+		return PTR_ERR(tcphy->uphy_rst);
+	}
+
+	return 0;
+}
+
+static int rockchip_typec_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rockchip_typec_phy *tcphy;
+	struct resource *res;
+	struct phy_provider *phy_provider;
+	int ret;
+
+	tcphy = devm_kzalloc(dev, sizeof(*tcphy), GFP_KERNEL);
+	if (!tcphy)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	tcphy->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(tcphy->base)) {
+		dev_err(dev, "failed to remap phy regs\n");
+		return PTR_ERR(tcphy->base);
+	}
+
+	tcphy_parse_dt(tcphy, dev);
+
+	tcphy->dev = dev;
+	platform_set_drvdata(pdev, tcphy);
+
+	tcphy->mode = MODE_DISCONNECT;
+
+	tcphy->phy = devm_phy_create(dev, NULL, &rockchip_tcphy_ops);
+	if (IS_ERR(tcphy->phy)) {
+		dev_err(dev, "failed to create Tepy-c PHY\n");
+		return PTR_ERR(tcphy->phy);
+	}
+
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(phy_provider)) {
+		dev_err(dev, "Failed to register phy provider\n");
+		return PTR_ERR(phy_provider);
+	}
+
+	tcphy->extcon = extcon_get_edev_by_phandle(dev, 0);
+	if (IS_ERR(tcphy->extcon)) {
+		if (PTR_ERR(tcphy->extcon) != -EPROBE_DEFER)
+			dev_err(dev, "Invalid or missing extcon\n");
+		return PTR_ERR(tcphy->extcon);
+	}
+
+	tcphy->event_nb.notifier_call = tcphy_pd_event;
+	INIT_DELAYED_WORK(&tcphy->event_wq, tcphy_event_wq);
+	ret = extcon_register_notifier(tcphy->extcon, EXTCON_USB,
+				       &tcphy->event_nb);
+	if (ret) {
+		dev_err(dev, "regitster notifer failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int rockchip_typec_phy_remove(struct platform_device *pdev)
+{
+	struct rockchip_typec_phy *tcphy = platform_get_drvdata(pdev);
+
+	extcon_unregister_notifier(tcphy->extcon, EXTCON_USB,
+				   &tcphy->event_nb);
+
+	return 0;
+}
+
+static const struct of_device_id rockchip_typec_phy_dt_ids[] = {
+	{ .compatible = "rockchip,rk3399-typec-phy" },
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, rockchip_typec_phy_dt_ids);
+
+static struct platform_driver rockchip_typec_phy_driver = {
+	.probe		= rockchip_typec_phy_probe,
+	.remove		= rockchip_typec_phy_remove,
+	.driver		= {
+		.name	= "rockchip-typec-phy",
+		.of_match_table = rockchip_typec_phy_dt_ids,
+	},
+};
+
+module_platform_driver(rockchip_typec_phy_driver);
+
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_AUTHOR("Kever Yang <kever.yang@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip USB TYPE-C PHY driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/phy/phy-rockchip-typec.h b/include/linux/phy/phy-rockchip-typec.h
new file mode 100644
index 0000000..acdd8cb
--- /dev/null
+++ b/include/linux/phy/phy-rockchip-typec.h
@@ -0,0 +1,20 @@
+#ifndef PHY_ROCKCHIP_TYPEC_H_
+#define PHY_ROCKCHIP_TYPEC_H_
+
+#define PIN_MAP_A	BIT(0)
+#define PIN_MAP_B	BIT(1)
+#define PIN_MAP_C	BIT(2)
+#define PIN_MAP_D	BIT(3)
+#define PIN_MAP_E	BIT(4)
+#define PIN_MAP_F	BIT(5)
+
+#define SET_PIN_MAP(x)	(((x) & 0xff) << 24)
+#define SET_FLIP(x)	(((x) & 0xff) << 16)
+#define SET_DFP(x)	(((x) & 0xff) << 8)
+#define SET_PLUGGED(x)	((x) & 0xff)
+#define GET_PIN_MAP(x)	(((x) >> 24) & 0xff)
+#define GET_FLIP(x)	(((x) >> 16) & 0xff)
+#define GET_DFP(x)	(((x) >> 8) & 0xff)
+#define GET_PLUGGED(x)	((x) & 0xff)
+
+#endif
-- 
2.6.3

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [v2 PATCH 3/4] Documentation: bindings: add dt documentation for cdn DP controller
  2016-06-13  9:39 [v2 PATCH 0/4] Rockchip Type-C and DispplayPort driver Chris Zhong
  2016-06-13  9:39 ` [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY Chris Zhong
  2016-06-13  9:39 ` [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399 Chris Zhong
@ 2016-06-13  9:39 ` Chris Zhong
  2016-06-14 23:12   ` Rob Herring
  2016-06-13  9:39 ` [v2 PATCH 4/4] drm/rockchip: cdn-dp: add cdn DP support for rk3399 Chris Zhong
  3 siblings, 1 reply; 18+ messages in thread
From: Chris Zhong @ 2016-06-13  9:39 UTC (permalink / raw)
  To: dianders, tfiga, heiko, yzq, groeck
  Cc: linux-rockchip, Chris Zhong, Mark Yao, Rob Herring, Pawel Moll,
	Mark Rutland, Ian Campbell, Kumar Gala, dri-devel, devicetree,
	linux-arm-kernel, linux-kernel

This patch adds a binding that describes the cdn DP controller for
rk3399.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>

---

Changes in v2: None
Changes in v1:
- add extcon node description
- add #sound-dai-cells description

 .../bindings/display/rockchip/cdn-dp-rockchip.txt  | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt

diff --git a/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
new file mode 100644
index 0000000..4a66fc3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
@@ -0,0 +1,62 @@
+Rockchip RK3399 specific extensions to the cdn Display Port
+================================
+
+Required properties:
+- compatible: must be "rockchip,cdn-dp"
+
+- reg: physical base address of the controller and length
+
+- clocks: from common clock binding: handle to dp clock.
+
+- clock-names: from common clock binding:
+	       Required elements: "core_clk" "pclk" "spdif"
+
+- rockchip,grf: this soc should set GRF regs, so need get grf here.
+
+- ports: contain a port nodes with endpoint definitions as defined in
+	 Documentation/devicetree/bindings/media/video-interfaces.txt.
+	 contained 2 endpoints, connecting to the output of vop.
+
+- phys: from general PHY binding: the phandle for the PHY device.
+
+- extcon: extcon specifier for the Power Delivery
+
+- #sound-dai-cells = it must be 1 if your system is using 2 DAIs: I2S, SPDIF
+
+-------------------------------------------------------------------------------
+
+Example:
+	cdn_dp: dp@fec00000 {
+		compatible = "rockchip,cdn-dp";
+		reg = <0x0 0xfec00000 0x0 0x100000>;
+		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru SCLK_DP_CORE>, <&cru PCLK_DP_CTRL>,
+			 <&cru SCLK_SPDIF_REC_DPTX>;
+		clock-names = "core_clk", "pclk", "spdif";
+		phys = <&tcphy0>;
+		extcon = <&fusb1>;
+		rockchip,grf = <&grf>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		#sound-dai-cells = <1>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			dp_in: port {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				dp_in_vopb: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&vopb_out_dp>;
+				};
+
+				dp_in_vopl: endpoint@1 {
+					reg = <1>;
+					remote-endpoint = <&vopl_out_dp>;
+				};
+			};
+		};
+	};
-- 
2.6.3

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [v2 PATCH 4/4] drm/rockchip: cdn-dp: add cdn DP support for rk3399
  2016-06-13  9:39 [v2 PATCH 0/4] Rockchip Type-C and DispplayPort driver Chris Zhong
                   ` (2 preceding siblings ...)
  2016-06-13  9:39 ` [v2 PATCH 3/4] Documentation: bindings: add dt documentation for cdn DP controller Chris Zhong
@ 2016-06-13  9:39 ` Chris Zhong
  3 siblings, 0 replies; 18+ messages in thread
From: Chris Zhong @ 2016-06-13  9:39 UTC (permalink / raw)
  To: dianders, tfiga, heiko, yzq, groeck
  Cc: linux-rockchip, Chris Zhong, Mark Yao, David Airlie,
	linux-kernel, dri-devel, linux-arm-kernel

Add support for cdn DP controller which is embedded in the rk3399
SoCs. The DP is compliant with DisplayPort Specification,
Version 1.3, This IP is compatible with the rockchip type-c PHY IP.
There is a uCPU in DP controller, it need a firmware to work,
please put the firmware file to /lib/firmware/cdn/dptx.bin. The
uCPU in charge of aux communication and link training, the host use
mailbox to communicate with the ucpu.
The dclk pin_pol of vop must not be invert for DP.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>

---

Changes in v2:
- Alphabetic order
- remove excess error message
- use define clk_rate
- check all return value
- remove dev_set_name(dp->dev, "cdn-dp");
- use schedule_delayed_work
- remove never-called functions
- remove some unnecessary ()

Changes in v1:
- use extcon API
- use hdmi-codec for the DP Asoc
- do not initialize the "ret"
- printk a err log when drm_of_encoder_active_endpoint_id
- modify the dclk pin_pol to a single line

 drivers/gpu/drm/rockchip/Kconfig            |   9 +
 drivers/gpu/drm/rockchip/Makefile           |   1 +
 drivers/gpu/drm/rockchip/cdn-dp-core.c      | 694 +++++++++++++++++++++++++++
 drivers/gpu/drm/rockchip/cdn-dp-core.h      | 108 +++++
 drivers/gpu/drm/rockchip/cdn-dp-reg.c       | 717 ++++++++++++++++++++++++++++
 drivers/gpu/drm/rockchip/cdn-dp-reg.h       | 404 ++++++++++++++++
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c |   6 +-
 drivers/gpu/drm/rockchip/rockchip_drm_vop.h |   2 +
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c |   2 +
 9 files changed, 1942 insertions(+), 1 deletion(-)
 create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-core.c
 create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-core.h
 create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-reg.c
 create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-reg.h

diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index d30bdc3..20da9a8 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -25,6 +25,15 @@ config ROCKCHIP_ANALOGIX_DP
 	  for the Analogix Core DP driver. If you want to enable DP
 	  on RK3288 based SoC, you should selet this option.
 
+config ROCKCHIP_CDN_DP
+        tristate "Rockchip cdn DP"
+        depends on DRM_ROCKCHIP
+        help
+	  This selects support for Rockchip SoC specific extensions
+	  for the cdn Dp driver. If you want to enable Dp on
+	  RK3399 based SoC, you should selet this
+	  option.
+
 config ROCKCHIP_DW_HDMI
         tristate "Rockchip specific extensions for Synopsys DW HDMI"
         depends on DRM_ROCKCHIP
diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile
index 05d0713..abdecd5 100644
--- a/drivers/gpu/drm/rockchip/Makefile
+++ b/drivers/gpu/drm/rockchip/Makefile
@@ -7,6 +7,7 @@ rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o \
 rockchipdrm-$(CONFIG_DRM_FBDEV_EMULATION) += rockchip_drm_fbdev.o
 
 obj-$(CONFIG_ROCKCHIP_ANALOGIX_DP) += analogix_dp-rockchip.o
+obj-$(CONFIG_ROCKCHIP_CDN_DP) += cdn-dp-core.o cdn-dp-reg.o
 obj-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o
 obj-$(CONFIG_ROCKCHIP_DW_MIPI_DSI) += dw-mipi-dsi.o
 obj-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi.o
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
new file mode 100644
index 0000000..4e7f036
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -0,0 +1,694 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_dp_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_of.h>
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/extcon.h>
+#include <linux/firmware.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy-rockchip-typec.h>
+
+#include <sound/hdmi-codec.h>
+
+#include <video/of_videomode.h>
+#include <video/videomode.h>
+
+#include "cdn-dp-reg.h"
+#include "cdn-dp-core.h"
+#include "rockchip_drm_vop.h"
+
+#define connector_to_dp(c) \
+		container_of(c, struct cdn_dp_device, connector)
+
+#define encoder_to_dp(c) \
+		container_of(c, struct cdn_dp_device, encoder)
+
+/* dp grf register offset */
+#define DP_VOP_SEL		0x6224
+#define DP_SEL_VOP_LIT		BIT(12)
+#define DP_CLK_RATE		200000000
+#define WAIT_HPD_STABLE		1000
+
+static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
+{
+	int ret;
+
+	ret = clk_prepare_enable(dp->pclk);
+	if (ret < 0) {
+		dev_err(dp->dev, "cannot enable dp pclk %d\n", ret);
+		goto err_pclk;
+	}
+
+	ret = clk_prepare_enable(dp->core_clk);
+	if (ret < 0) {
+		dev_err(dp->dev, "cannot enable core_clk %d\n", ret);
+		goto err_core_clk;
+	}
+
+	ret = clk_set_rate(dp->core_clk, DP_CLK_RATE);
+	if (ret < 0) {
+		dev_err(dp->dev, "cannot set dp core clk to %d %d\n",
+			DP_CLK_RATE, ret);
+		goto err_set_rate;
+	}
+
+	/* notice fw the clk freq value */
+	cdn_dp_set_fw_clk(dp, DP_CLK_RATE);
+
+	return 0;
+
+err_set_rate:
+	clk_disable_unprepare(dp->core_clk);
+err_core_clk:
+	clk_disable_unprepare(dp->pclk);
+err_pclk:
+	return ret;
+}
+
+static enum drm_connector_status
+cdn_dp_connector_detect(struct drm_connector *connector, bool force)
+{
+	struct cdn_dp_device *dp = connector_to_dp(connector);
+
+	return dp->hpd_status ? connector_status_connected :
+				connector_status_disconnected;
+}
+
+static void cdn_dp_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+}
+
+static struct drm_connector_funcs cdn_dp_atomic_connector_funcs = {
+	.dpms = drm_atomic_helper_connector_dpms,
+	.detect = cdn_dp_connector_detect,
+	.destroy = cdn_dp_connector_destroy,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.reset = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static int cdn_dp_connector_get_modes(struct drm_connector *connector)
+{
+	struct cdn_dp_device *dp = connector_to_dp(connector);
+	struct edid *edid;
+
+	if (!dp->fw_loaded)
+		return 0;
+
+	edid = drm_do_get_edid(connector, cdn_dp_get_edid_block, dp);
+	if (edid) {
+		dev_dbg(dp->dev, "got edid: width[%d] x height[%d]\n",
+			edid->width_cm, edid->height_cm);
+
+		dp->sink_has_audio = drm_detect_monitor_audio(edid);
+		drm_mode_connector_update_edid_property(connector, edid);
+		drm_add_edid_modes(connector, edid);
+		/* Store the ELD */
+		drm_edid_to_eld(connector, edid);
+		kfree(edid);
+	} else {
+		dev_dbg(dp->dev, "failed to get edid\n");
+	}
+
+	return 0;
+}
+
+static struct drm_encoder *
+	cdn_dp_connector_best_encoder(struct drm_connector *connector)
+{
+	struct cdn_dp_device *dp = connector_to_dp(connector);
+
+	return &dp->encoder;
+}
+
+static int cdn_dp_connector_mode_valid(struct drm_connector *connector,
+				       struct drm_display_mode *mode)
+{
+	struct cdn_dp_device *dp = connector_to_dp(connector);
+	struct drm_display_info *display_info = &dp->connector.display_info;
+	long requested = mode->clock * display_info->bpc * 3 / 1000;
+	long actual, rate;
+
+	rate = drm_dp_bw_code_to_link_rate(dp->link.rate);
+	actual = rate * dp->link.num_lanes / 100;
+
+	/* efficiency is about 0.8 */
+	actual = actual * 8 / 10;
+
+	if (requested > actual) {
+		dev_dbg(dp->dev, "requested=%ld, actual=%ld, clock=%d, bpc= %d\n",
+			requested, actual, mode->clock, display_info->bpc);
+		return MODE_H_ILLEGAL;
+	}
+
+	return MODE_OK;
+}
+
+static struct drm_connector_helper_funcs cdn_dp_connector_helper_funcs = {
+	.get_modes = cdn_dp_connector_get_modes,
+	.best_encoder = cdn_dp_connector_best_encoder,
+	.mode_valid = cdn_dp_connector_mode_valid,
+};
+
+static void cdn_dp_commit(struct drm_encoder *encoder)
+{
+	struct cdn_dp_device *dp = encoder_to_dp(encoder);
+
+	if (cdn_dp_set_video_status(dp, CONTROL_VIDEO_IDLE))
+		return;
+
+	if (cdn_dp_config_video(dp)) {
+		dev_err(dp->dev, "unable to config video\n");
+		return;
+	}
+
+	if (cdn_dp_set_video_status(dp, CONTROL_VIDEO_VALID))
+		return;
+
+	dp->dpms_mode = DRM_MODE_DPMS_ON;
+}
+
+static void cdn_dp_encoder_mode_set(struct drm_encoder *encoder,
+				    struct drm_display_mode *mode,
+				    struct drm_display_mode *adjusted)
+{
+	struct cdn_dp_device *dp = encoder_to_dp(encoder);
+	struct drm_display_info *display_info = &dp->connector.display_info;
+	struct rockchip_crtc_state *state;
+	struct video_info *video = &dp->video_info;
+	int ret, val;
+
+	switch (display_info->bpc) {
+	case 16:
+	case 12:
+	case 10:
+		video->color_depth = 10;
+		break;
+	case 6:
+		video->color_depth = 6;
+		break;
+	default:
+		video->color_depth = 8;
+		break;
+	}
+
+	video->color_fmt = PXL_RGB;
+
+	video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC);
+	video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC);
+
+	ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);
+	if (ret < 0) {
+		dev_err(dp->dev, "Could not get vop id, %d", ret);
+		return;
+	}
+
+	state = to_rockchip_crtc_state(encoder->crtc->state);
+	if (ret) {
+		val = DP_SEL_VOP_LIT | (DP_SEL_VOP_LIT << 16);
+		state->output_mode = ROCKCHIP_OUT_MODE_P888;
+	} else {
+		val = DP_SEL_VOP_LIT << 16;
+		state->output_mode = ROCKCHIP_OUT_MODE_AAAA;
+	}
+	ret = regmap_write(dp->grf, DP_VOP_SEL, val);
+	if (ret != 0)
+		dev_err(dp->dev, "Could not write to GRF: %d\n", ret);
+
+	memcpy(&dp->mode, adjusted, sizeof(*mode));
+}
+
+static void cdn_dp_encoder_enable(struct drm_encoder *encoder)
+{
+	struct cdn_dp_device *dp = encoder_to_dp(encoder);
+
+	if (dp->dpms_mode != DRM_MODE_DPMS_ON)
+		cdn_dp_commit(encoder);
+}
+
+static void cdn_dp_encoder_disable(struct drm_encoder *encoder)
+{
+	struct cdn_dp_device *dp = encoder_to_dp(encoder);
+
+	if (dp->dpms_mode != DRM_MODE_DPMS_OFF) {
+		cdn_dp_set_video_status(dp, CONTROL_VIDEO_IDLE);
+		dp->dpms_mode = DRM_MODE_DPMS_OFF;
+	}
+}
+
+static int
+cdn_dp_encoder_atomic_check(struct drm_encoder *encoder,
+			    struct drm_crtc_state *crtc_state,
+			    struct drm_connector_state *conn_state)
+{
+	struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
+
+	s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
+	s->output_type = DRM_MODE_CONNECTOR_DisplayPort;
+
+	return 0;
+}
+
+static struct drm_encoder_helper_funcs cdn_dp_encoder_helper_funcs = {
+	.mode_set = cdn_dp_encoder_mode_set,
+	.enable = cdn_dp_encoder_enable,
+	.disable = cdn_dp_encoder_disable,
+	.atomic_check = cdn_dp_encoder_atomic_check,
+};
+
+static struct drm_encoder_funcs cdn_dp_encoder_funcs = {
+	.destroy = drm_encoder_cleanup,
+};
+
+static int cdn_dp_firmware_init(struct cdn_dp_device *dp)
+{
+	int ret;
+	const u32 *iram_data, *dram_data;
+	const struct firmware *fw;
+	const struct cdn_firmware_header *hdr;
+
+	if (dp->fw_loaded)
+		return 0;
+
+	ret = request_firmware(&fw, "cdn/dptx.bin", dp->dev);
+	if (ret < 0) {
+		dev_err(dp->dev, "failed to request firmware %d\n", ret);
+		return ret;
+	}
+
+	hdr = (struct cdn_firmware_header *)fw->data;
+	if (fw->size != le32_to_cpu(hdr->size_bytes))
+		return -EINVAL;
+
+	iram_data = (const u32 *)(fw->data + hdr->header_size);
+	dram_data = (const u32 *)(fw->data + hdr->header_size + hdr->iram_size);
+
+	ret = cdn_dp_load_firmware(dp, iram_data, hdr->iram_size,
+				   dram_data, hdr->dram_size);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_active(dp, true);
+	if (ret) {
+		dev_err(dp->dev, "active ucpu failed: %d\n", ret);
+		return ret;
+	}
+
+	return cdn_dp_event_config(dp);
+}
+
+static int cdn_dp_init(struct cdn_dp_device *dp)
+{
+	struct device *dev = dp->dev;
+	struct device_node *np = dev->of_node;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct resource *res;
+	int ret;
+
+	dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
+	if (IS_ERR(dp->grf)) {
+		dev_err(dev, "cdn-dp needs rockchip,grf property\n");
+		return PTR_ERR(dp->grf);
+	}
+
+	dp->irq = platform_get_irq(pdev, 0);
+	if (dp->irq < 0) {
+		dev_err(dev, "cdn-dp can not get irq\n");
+		return dp->irq;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	dp->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(dp->regs)) {
+		dev_err(dev, "ioremap reg failed\n");
+		return PTR_ERR(dp->regs);
+	}
+
+	dp->core_clk = devm_clk_get(dev, "core_clk");
+	if (IS_ERR(dp->core_clk)) {
+		dev_err(dev, "cannot get core_clk_dp\n");
+		return PTR_ERR(dp->core_clk);
+	}
+
+	dp->pclk = devm_clk_get(dev, "pclk");
+	if (IS_ERR(dp->pclk)) {
+		dev_err(dev, "cannot get pclk\n");
+		return PTR_ERR(dp->pclk);
+	}
+
+	dp->spdif_clk = devm_clk_get(dev, "spdif");
+	if (IS_ERR(dp->spdif_clk)) {
+		dev_err(dev, "cannot get spdif_clk\n");
+		return PTR_ERR(dp->spdif_clk);
+	}
+
+	dp->dpms_mode = DRM_MODE_DPMS_OFF;
+
+	ret = cdn_dp_clk_enable(dp);
+	if (ret < 0)
+		return ret;
+
+	dp_clock_reset_seq(dp);
+
+	return 0;
+}
+
+static int cdn_dp_audio_hw_params(struct device *dev,
+				  struct hdmi_codec_daifmt *daifmt,
+				  struct hdmi_codec_params *params)
+{
+	struct cdn_dp_device *dp = dev_get_drvdata(dev);
+	int ret;
+	struct audio_info audio = {
+		.sample_width = params->sample_width,
+		.sample_rate = params->sample_rate,
+		.channels = params->channels,
+	};
+
+	if (!dp->encoder.crtc)
+		return -ENODEV;
+
+	switch (daifmt->fmt) {
+	case HDMI_I2S:
+		audio.format = AFMT_I2S;
+		break;
+	case HDMI_SPDIF:
+		audio.format = AFMT_SPDIF;
+		break;
+	default:
+		dev_err(dev, "%s: Invalid format %d\n", __func__, daifmt->fmt);
+		return -EINVAL;
+	}
+
+	ret = cdn_dp_audio_config_set(dp, &audio);
+	if (!ret)
+		dp->audio_info = audio;
+
+	return ret;
+}
+
+static void cdn_dp_audio_shutdown(struct device *dev)
+{
+	struct cdn_dp_device *dp = dev_get_drvdata(dev);
+	int ret = cdn_dp_audio_stop(dp, &dp->audio_info);
+
+	if (!ret)
+		dp->audio_info.format = AFMT_UNUSED;
+}
+
+static int cdn_dp_audio_digital_mute(struct device *dev, bool enable)
+{
+	struct cdn_dp_device *dp = dev_get_drvdata(dev);
+
+	return cdn_dp_audio_mute(dp, enable);
+}
+
+static int cdn_dp_audio_get_eld(struct device *dev, uint8_t *buf, size_t len)
+{
+	struct cdn_dp_device *dp = dev_get_drvdata(dev);
+	struct drm_mode_config *config = &dp->encoder.dev->mode_config;
+	struct drm_connector *connector;
+	int ret = -ENODEV;
+
+	mutex_lock(&config->mutex);
+	list_for_each_entry(connector, &config->connector_list, head) {
+		if (&dp->encoder == connector->encoder) {
+			memcpy(buf, connector->eld,
+			       min(sizeof(connector->eld), len));
+			ret = 0;
+		}
+	}
+	mutex_unlock(&config->mutex);
+
+	return ret;
+}
+
+static const struct hdmi_codec_ops audio_codec_ops = {
+	.hw_params = cdn_dp_audio_hw_params,
+	.audio_shutdown = cdn_dp_audio_shutdown,
+	.digital_mute = cdn_dp_audio_digital_mute,
+	.get_eld = cdn_dp_audio_get_eld,
+};
+
+static int cdn_dp_audio_codec_init(struct cdn_dp_device *dp,
+				   struct device *dev)
+{
+	struct hdmi_codec_pdata codec_data = {
+		.i2s = 1,
+		.spdif = 1,
+		.ops = &audio_codec_ops,
+		.max_i2s_channels = 8,
+	};
+
+	dp->audio_pdev = platform_device_register_data(
+			 dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_AUTO,
+			 &codec_data, sizeof(codec_data));
+
+	return PTR_ERR_OR_ZERO(dp->audio_pdev);
+}
+
+static int cdn_dp_pd_event(struct notifier_block *nb,
+			   unsigned long event, void *priv)
+{
+	struct cdn_dp_device *dp;
+	struct extcon_dev *edev = priv;
+	int value = edev->state;
+	u8 map;
+
+	dp = container_of(nb, struct cdn_dp_device, event_nb);
+
+	map = GET_PIN_MAP(value);
+
+	/*
+	 * if the old state is not plugged, and the map is 0, the device is
+	 * certainly not DP.
+	 */
+	if (!map && !dp->plugged)
+		return 0;
+
+	dp->plugged = GET_PLUGGED(value);
+	dp->flip = GET_FLIP(value);
+
+	if (map & (PIN_MAP_B | PIN_MAP_D | PIN_MAP_F))
+		dp->cap_lanes = 2;
+	else
+		dp->cap_lanes = 4;
+
+	schedule_delayed_work(&dp->event_wq, msecs_to_jiffies(WAIT_HPD_STABLE));
+
+	return 0;
+}
+
+static void cdn_dp_pd_event_wq(struct work_struct *work)
+{
+	struct cdn_dp_device *dp;
+	int ret;
+
+	dp = container_of(work, struct cdn_dp_device, event_wq.work);
+
+	if (cdn_dp_firmware_init(dp))
+		return;
+
+	ret = cdn_dp_get_hpd_status(dp);
+	if (ret <= 0) {
+		/* read hpd status failed, or the hpd does not exist. */
+		dp->hpd_status = false;
+		drm_helper_hpd_irq_event(dp->drm_dev);
+		return;
+	}
+
+	/*
+	 * Set the capability and start the training process once
+	 * the hpd is detected.
+	 */
+	ret = cdn_dp_set_host_cap(dp);
+	if (ret) {
+		dev_err(dp->dev, "set host capabilities failed\n");
+		return;
+	}
+
+	ret = cdn_dp_training_start(dp);
+	if (ret) {
+		dev_err(dp->dev, "hw lt err:%d\n", ret);
+		return;
+	}
+
+	ret = cdn_dp_get_lt_status(dp);
+	if (ret) {
+		dev_err(dp->dev, "hw lt get status failed\n");
+		return;
+	}
+
+	dev_info(dp->dev, "rate:%d, lanes:%d\n",
+		 dp->link.rate, dp->link.num_lanes);
+
+	dp->hpd_status = true;
+	drm_helper_hpd_irq_event(dp->drm_dev);
+}
+
+static int cdn_dp_bind(struct device *dev, struct device *master,
+		       void *data)
+{
+	struct cdn_dp_device *dp = dev_get_drvdata(dev);
+	struct drm_encoder *encoder;
+	struct drm_connector *connector;
+	struct drm_device *drm_dev = data;
+	int ret;
+
+	ret = cdn_dp_init(dp);
+	if (ret < 0)
+		return ret;
+
+	dp->drm_dev = drm_dev;
+
+	encoder = &dp->encoder;
+
+	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev,
+							     dev->of_node);
+	DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
+
+	ret = drm_encoder_init(drm_dev, encoder, &cdn_dp_encoder_funcs,
+			       DRM_MODE_ENCODER_TMDS, NULL);
+	if (ret) {
+		DRM_ERROR("failed to initialize encoder with drm\n");
+		return ret;
+	}
+
+	drm_encoder_helper_add(encoder, &cdn_dp_encoder_helper_funcs);
+
+	connector = &dp->connector;
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
+	connector->dpms = DRM_MODE_DPMS_OFF;
+
+	ret = drm_connector_init(drm_dev, connector,
+				 &cdn_dp_atomic_connector_funcs,
+				 DRM_MODE_CONNECTOR_DisplayPort);
+	if (ret) {
+		DRM_ERROR("failed to initialize connector with drm\n");
+		goto err_free_encoder;
+	}
+
+	drm_connector_helper_add(connector, &cdn_dp_connector_helper_funcs);
+
+	ret = drm_mode_connector_attach_encoder(connector, encoder);
+	if (ret) {
+		DRM_ERROR("failed to attach connector and encoder\n");
+		goto err_free_connector;
+	}
+
+	cdn_dp_audio_codec_init(dp, dev);
+
+	dp->event_nb.notifier_call = cdn_dp_pd_event;
+	INIT_DELAYED_WORK(&dp->event_wq, cdn_dp_pd_event_wq);
+	ret = extcon_register_notifier(dp->extcon, EXTCON_USB,
+				       &dp->event_nb);
+	if (ret) {
+		dev_err(dev, "regitster notifer failed\n");
+		return ret;
+	}
+
+	return 0;
+
+err_free_connector:
+	drm_connector_cleanup(connector);
+err_free_encoder:
+	drm_encoder_cleanup(encoder);
+	return ret;
+}
+
+static void cdn_dp_unbind(struct device *dev, struct device *master, void *data)
+{
+	struct cdn_dp_device *dp = dev_get_drvdata(dev);
+	struct drm_encoder *encoder = &dp->encoder;
+
+	platform_device_unregister(dp->audio_pdev);
+	cdn_dp_encoder_disable(encoder);
+	encoder->funcs->destroy(encoder);
+	drm_connector_unregister(&dp->connector);
+	drm_connector_cleanup(&dp->connector);
+	drm_encoder_cleanup(encoder);
+
+	extcon_unregister_notifier(dp->extcon, EXTCON_USB,
+				   &dp->event_nb);
+}
+
+static const struct component_ops cdn_dp_component_ops = {
+	.bind = cdn_dp_bind,
+	.unbind = cdn_dp_unbind,
+};
+
+static int cdn_dp_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct cdn_dp_device *dp;
+
+	dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);
+	if (!dp)
+		return -ENOMEM;
+	dp->dev = dev;
+
+	dp->extcon = extcon_get_edev_by_phandle(dev, 0);
+	if (IS_ERR(dp->extcon)) {
+		if (PTR_ERR(dp->extcon) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		dev_err(dev, "Invalid or missing extcon\n");
+		return PTR_ERR(dp->extcon);
+	}
+
+	dev_set_drvdata(dev, dp);
+
+	return component_add(dev, &cdn_dp_component_ops);
+}
+
+static int cdn_dp_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &cdn_dp_component_ops);
+
+	return 0;
+}
+
+static const struct of_device_id cdn_dp_dt_ids[] = {
+	{.compatible = "rockchip,cdn-dp",},
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, cdn_dp_dt_ids);
+
+static struct platform_driver cdn_dp_driver = {
+	.probe = cdn_dp_probe,
+	.remove = cdn_dp_remove,
+	.driver = {
+		   .name = "cdn-dp",
+		   .owner = THIS_MODULE,
+		   .of_match_table = of_match_ptr(cdn_dp_dt_ids),
+	},
+};
+
+module_platform_driver(cdn_dp_driver);
+
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_DESCRIPTION("cdn DP Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.h b/drivers/gpu/drm/rockchip/cdn-dp-core.h
new file mode 100644
index 0000000..aa63520
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2016 Chris Zhong <zyw@rock-chips.com>
+ * Copyright (C) 2016 ROCKCHIP, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _ROCKCHIP_EDP_CORE_H
+#define _ROCKCHIP_EDP_CORE_H
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_dp_helper.h>
+#include <drm/drm_panel.h>
+#include "rockchip_drm_drv.h"
+#include "cdn-dp-reg.h"
+
+enum AUDIO_FORMAT {
+	AFMT_I2S = 0,
+	AFMT_SPDIF = 1,
+	AFMT_UNUSED,
+};
+
+struct audio_info {
+	enum AUDIO_FORMAT format;
+	int sample_rate;
+	int channels;
+	int sample_width;
+};
+
+struct video_info {
+	bool h_sync_polarity;
+	bool v_sync_polarity;
+	bool interlaced;
+	int color_depth;
+	enum VIC_PXL_ENCODING_FORMAT color_fmt;
+};
+
+struct cdn_firmware_header {
+	u32 size_bytes; /* size of the entire header+image(s) in bytes */
+	u32 header_size; /* size of just the header in bytes */
+	u32 iram_size; /* size of iram */
+	u32 dram_size; /* size of dram */
+};
+
+struct cdn_dp_device {
+	struct device *dev;
+	struct drm_device *drm_dev;
+	struct drm_connector connector;
+	struct drm_encoder encoder;
+	struct drm_display_mode mode;
+	struct platform_device *audio_pdev;
+
+	const struct firmware *fw;	/* cdn dp firmware */
+	unsigned int fw_version;	/* cdn fw version */
+	bool fw_loaded;
+	void __iomem *regs;
+	struct regmap *grf;
+	unsigned int irq;
+	struct clk *core_clk;
+	struct clk *pclk;
+	struct clk *spdif_clk;
+	struct audio_info audio_info;
+	struct video_info video_info;
+	struct extcon_dev	*extcon;
+	struct notifier_block	event_nb;
+	struct delayed_work	event_wq;
+
+	bool plugged;
+	bool hpd_status;
+	int cap_lanes;
+	bool flip;
+
+	int dpms_mode;
+	struct drm_dp_link link;
+	bool sink_has_audio;
+};
+
+void dp_clock_reset_seq(struct cdn_dp_device *dp);
+
+void cdn_dp_set_fw_clk(struct cdn_dp_device *dp, int clk);
+int cdn_dp_load_firmware(struct cdn_dp_device *dp, const u32 *i_mem,
+			 u32 i_size, const u32 *d_mem, u32 d_size);
+int cdn_dp_active(struct cdn_dp_device *dp, bool enable);
+int cdn_dp_set_host_cap(struct cdn_dp_device *dp);
+int cdn_dp_event_config(struct cdn_dp_device *dp);
+int cdn_dp_get_event(struct cdn_dp_device *dp);
+int cdn_dp_get_hpd_status(struct cdn_dp_device *dp);
+int cdn_dp_dpcd_write(struct cdn_dp_device *dp, u32 addr, u8 value);
+int cdn_dp_dpcd_read(struct cdn_dp_device *dp, u32 addr);
+int cdn_dp_get_edid_block(void *dp, u8 *edid,
+			  unsigned int block, size_t length);
+int cdn_dp_training_start(struct cdn_dp_device *dp);
+int cdn_dp_get_lt_status(struct cdn_dp_device *dp);
+int cdn_dp_set_video_status(struct cdn_dp_device *dp, int active);
+int cdn_dp_config_video(struct cdn_dp_device *dp);
+int cdn_dp_audio_stop(struct cdn_dp_device *dp, struct audio_info *audio);
+int cdn_dp_audio_mute(struct cdn_dp_device *dp, bool enable);
+int cdn_dp_audio_config_set(struct cdn_dp_device *dp, struct audio_info *audio);
+
+#endif  /* _ROCKCHIP_EDP_CORE_H */
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.c b/drivers/gpu/drm/rockchip/cdn-dp-reg.c
new file mode 100644
index 0000000..82277bb
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.c
@@ -0,0 +1,717 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/reset.h>
+
+#include "cdn-dp-core.h"
+#include "cdn-dp-reg.h"
+
+#define FW_ALIVE_TIMEOUT_US		1000000
+#define MAILBOX_TIMEOUT_US		5000000
+
+void cdn_dp_set_fw_clk(struct cdn_dp_device *dp, int clk)
+{
+	writel(clk / 1000000, dp->regs + SW_CLK_H);
+}
+
+void dp_clock_reset_seq(struct cdn_dp_device *dp)
+{
+	writel(0xfff, dp->regs + SOURCE_DPTX_CAR);
+	writel(0x7, dp->regs + SOURCE_PHY_CAR);
+	writel(0xf, dp->regs + SOURCE_PKT_CAR);
+	writel(0xff, dp->regs + SOURCE_AIF_CAR);
+	writel(0xf, dp->regs + SOURCE_CIPHER_CAR);
+	writel(0x3, dp->regs + SOURCE_CRYPTO_CAR);
+	writel(0, dp->regs + APB_INT_MASK);
+}
+
+static int cdn_dp_mailbox_read(struct cdn_dp_device *dp)
+{
+	int val, ret;
+
+	if (!dp->fw_loaded)
+		return 0;
+
+	ret = readx_poll_timeout(readl, dp->regs + MAILBOX_EMPTY_ADDR,
+				 val, !val, 1000, MAILBOX_TIMEOUT_US);
+	if (ret < 0) {
+		dev_err(dp->dev, "failed to read mailbox, keep alive = %x\n",
+			readl(dp->regs + KEEP_ALIVE));
+		return ret;
+	}
+
+	return readl(dp->regs + MAILBOX0_RD_DATA) & 0xff;
+}
+
+static int cdp_dp_mailbox_write(struct cdn_dp_device *dp, u8 val)
+{
+	int ret, full;
+
+	if (!dp->fw_loaded)
+		return 0;
+
+	ret = readx_poll_timeout(readl, dp->regs + MAILBOX_FULL_ADDR,
+				 full, !full, 1000, MAILBOX_TIMEOUT_US);
+	if (ret < 0) {
+		dev_err(dp->dev, "mailbox is full, keep alive = %x\n",
+			readl(dp->regs + KEEP_ALIVE));
+		return ret;
+	}
+
+	writel(val, dp->regs + MAILBOX0_WR_DATA);
+
+	return 0;
+}
+
+static int cdn_dp_mailbox_response(struct cdn_dp_device *dp, u8 module_id,
+				   u8 opcode, u8 *buff, u8 buff_size)
+{
+	int ret, i = 0;
+	u8 header[4];
+
+	/* read the header of the message */
+	while (i < 4) {
+		ret = cdn_dp_mailbox_read(dp);
+		if (ret < 0)
+			return ret;
+
+		header[i++] = ret;
+	}
+
+	if (opcode != header[0] || module_id != header[1] ||
+	    buff_size != ((header[2] << 8) | header[3])) {
+		dev_err(dp->dev, "mailbox response failed");
+
+		/*
+		 * If the message in mailbox is not what we want, we need to
+		 * clear the mailbox by read.
+		 */
+		i = (header[2] << 8) | header[3];
+		while (i--)
+			if (cdn_dp_mailbox_read(dp) < 0)
+				break;
+
+		return -EINVAL;
+	}
+
+	i = 0;
+	while (i < buff_size) {
+		ret = cdn_dp_mailbox_read(dp);
+		if (ret < 0)
+			return ret;
+
+		buff[i++] = ret;
+	}
+
+	return 0;
+}
+
+static int cdn_dp_mailbox_send(struct cdn_dp_device *dp, u8 module_id,
+			       u8 opcode, u16 size, u8 *message)
+{
+	u8 header[4];
+	int ret, i;
+
+	header[0] = opcode;
+	header[1] = module_id;
+	header[2] = size >> 8;
+	header[3] = size & 0xff;
+
+	for (i = 0; i < 4; i++) {
+		ret = cdp_dp_mailbox_write(dp, header[i]);
+		if (ret)
+			return ret;
+	}
+
+	while (size--) {
+		ret = cdp_dp_mailbox_write(dp, *message++);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int cdn_dp_reg_write(struct cdn_dp_device *dp, u16 addr, u32 val)
+{
+	u8 msg[6];
+
+	msg[0] = (addr >> 8) & 0xff;
+	msg[1] = addr & 0xff;
+	msg[2] = (val >> 24) & 0xff;
+	msg[3] = (val >> 16) & 0xff;
+	msg[4] = (val >> 8) & 0xff;
+	msg[5] = val & 0xff;
+	return cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_WRITE_REGISTER,
+				   ARRAY_SIZE(msg), msg);
+}
+
+int cdn_dp_load_firmware(struct cdn_dp_device *dp, const u32 *i_mem,
+			 u32 i_size, const u32 *d_mem, u32 d_size)
+{
+	int i, reg, ret;
+
+	/* reset ucpu before load firmware*/
+	writel(APB_IRAM_PATH | APB_DRAM_PATH | APB_XT_RESET,
+	       dp->regs + APB_CTRL);
+
+	for (i = 0; i < i_size; i += 4)
+		writel(*i_mem++, dp->regs + ADDR_IMEM + i);
+
+	for (i = 0; i < d_size; i += 4)
+		writel(*d_mem++, dp->regs + ADDR_DMEM + i);
+
+	/* un-reset ucpu */
+	writel(0, dp->regs + APB_CTRL);
+
+	/* check the keep alive register to make sure fw working */
+	ret = readx_poll_timeout(readl, dp->regs + KEEP_ALIVE,
+				 reg, reg, 2000, FW_ALIVE_TIMEOUT_US);
+	if (ret < 0) {
+		dev_err(dp->dev, "failed to loaded the FW reg = %x\n", reg);
+		return -EINVAL;
+	}
+
+	reg = readl(dp->regs + VER_L) & 0xff;
+	dp->fw_version = reg;
+	reg = readl(dp->regs + VER_H) & 0xff;
+	dp->fw_version |= reg << 8;
+	reg = readl(dp->regs + VER_LIB_L_ADDR) & 0xff;
+	dp->fw_version |= reg << 16;
+	reg = readl(dp->regs + VER_LIB_H_ADDR) & 0xff;
+	dp->fw_version |= reg << 24;
+
+	dp->fw_loaded = 1;
+
+	return 0;
+}
+
+int cdn_dp_reg_write_bit(struct cdn_dp_device *dp, u16 addr, u8 start_bit,
+			 u8 bits_no, u32 val)
+{
+	u8 field[8];
+
+	field[0] = (addr >> 8) & 0xff;
+	field[1] = addr & 0xff;
+	field[2] = start_bit;
+	field[3] = bits_no;
+	field[4] = (val >> 24) & 0xff;
+	field[5] = (val >> 16) & 0xff;
+	field[6] = (val >> 8) & 0xff;
+	field[7] = val & 0xff;
+
+	return cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_WRITE_FIELD,
+			    sizeof(field), field);
+}
+
+int cdn_dp_active(struct cdn_dp_device *dp, bool enable)
+{
+	u8 active = enable ? 1 : 0;
+	u8 resp;
+	int ret;
+
+	/* set firmware status, 1: avtive; 0: standby */
+	ret = cdn_dp_mailbox_send(dp, MB_MODULE_ID_GENERAL,
+				  GENERAL_MAIN_CONTROL, 1, &active);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_mailbox_response(dp, MB_MODULE_ID_GENERAL,
+				      GENERAL_MAIN_CONTROL, &resp, 1);
+	if (ret)
+		return ret;
+
+	return resp ? 0 : -EINVAL;
+}
+
+int cdn_dp_set_host_cap(struct cdn_dp_device *dp)
+{
+	u8 msg[8];
+	int ret;
+
+	msg[0] = DP_LINK_BW_5_4;
+	msg[1] = dp->cap_lanes;
+	msg[2] = VOLTAGE_LEVEL_2;
+	msg[3] = PRE_EMPHASIS_LEVEL_3;
+	msg[4] = PRBS7 | D10_2 | TRAINING_PTN1 | TRAINING_PTN2;
+	msg[5] = FAST_LT_NOT_SUPPORT;
+	msg[6] = LANE_MAPPING_NORMAL;
+	msg[7] = ENHANCED;
+
+	ret = cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX,
+				  DPTX_SET_HOST_CAPABILITIES,
+				  ARRAY_SIZE(msg), msg);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_reg_write(dp, DP_AUX_SWAP_INVERSION_CONTROL,
+			       AUX_HOST_INVERT);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int cdn_dp_event_config(struct cdn_dp_device *dp)
+{
+	u8 msg[5] = {0, 0, 0, 0, 0};
+
+	msg[0] = DPTX_EVENT_ENABLE_HPD | DPTX_EVENT_ENABLE_TRAINING;
+
+	return cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_ENABLE_EVENT,
+				    ARRAY_SIZE(msg), msg);
+}
+
+int cdn_dp_get_event(struct cdn_dp_device *dp)
+{
+	return readl(dp->regs + SW_EVENTS0);
+}
+
+int cdn_dp_get_hpd_status(struct cdn_dp_device *dp)
+{
+	u8 status;
+	int ret;
+
+	ret = cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_HPD_STATE,
+				  0, NULL);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX,
+				      DPTX_HPD_STATE, &status, 1);
+	if (ret)
+		return ret;
+
+	return status;
+}
+
+int cdn_dp_get_edid_block(void *data, u8 *edid,
+			  unsigned int block, size_t length)
+{
+	struct cdn_dp_device *dp = data;
+	u8 msg[2], reg[EDID_DATA + EDID_BLOCK_SIZE];
+	int ret;
+
+	if (length != EDID_BLOCK_SIZE)
+		return -EINVAL;
+
+	msg[0] = block / 2;
+	msg[1] = block % 2;
+
+	ret = cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_GET_EDID,
+				  2, msg);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX,
+				      DPTX_GET_EDID, reg,
+				      EDID_DATA + EDID_BLOCK_SIZE);
+	if (ret)
+		return ret;
+
+	if (reg[EDID_LENGTH_BYTE] != EDID_BLOCK_SIZE ||
+	    reg[EDID_SEGMENT_BUMBER] != block / 2) {
+		dev_err(dp->dev, "edid block size err\n");
+		return -EINVAL;
+	}
+
+	memcpy(edid, &reg[EDID_DATA], EDID_BLOCK_SIZE);
+
+	return 0;
+}
+
+int cdn_dp_training_start(struct cdn_dp_device *dp)
+{
+	u8 msg, event[2];
+	unsigned long timeout;
+	int ret;
+
+	msg = LINK_TRAINING_RUN;
+
+	/* start training */
+	ret = cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_TRAINING_CONTROL,
+				  1, &msg);
+	if (ret)
+		return ret;
+
+	/* the whole training should finish in 500ms */
+	timeout = jiffies + msecs_to_jiffies(500);
+	while (1) {
+		msleep(20);
+		ret = cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX,
+					  DPTX_READ_EVENT, 0, NULL);
+		if (ret)
+			return ret;
+
+		ret = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX,
+					      DPTX_READ_EVENT, event, 2);
+		if (ret)
+			return ret;
+
+		if (event[1] & EQ_PHASE_FINISHED)
+			break;
+
+		if (time_after(jiffies, timeout))
+			return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+int cdn_dp_get_lt_status(struct cdn_dp_device *dp)
+{
+	u8 status[10];
+	int ret;
+
+	ret = cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_READ_LINK_STAT,
+				  0, NULL);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX,
+				      DPTX_READ_LINK_STAT, status, 10);
+	if (ret)
+		return ret;
+
+	dp->link.rate = status[0];
+	dp->link.num_lanes = status[1];
+
+	return 0;
+}
+
+int cdn_dp_set_video_status(struct cdn_dp_device *dp, int active)
+{
+	u8 msg;
+
+	msg = !!active;
+
+	return cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_SET_VIDEO,
+				   1, &msg);
+}
+
+static int cdn_dp_get_msa_misc(struct video_info *video,
+			       struct drm_display_mode *mode)
+{
+	u8 val0, val1;
+	u32 msa_misc;
+
+	switch (video->color_fmt) {
+	case PXL_RGB:
+	case Y_ONLY:
+		val0 = 0;
+		break;
+	case YCBCR_4_4_4:
+		val0 = 6;
+		break;
+	case YCBCR_4_2_2:
+		val0 = 5;
+		break;
+	case YCBCR_4_2_0:
+		val0 = 5;
+		break;
+	};
+
+	switch (video->color_depth) {
+	case 6:
+		val1 = 0;
+		break;
+	case 8:
+		val1 = 1;
+		break;
+	case 10:
+		val1 = 2;
+		break;
+	case 12:
+		val1 = 3;
+		break;
+	case 16:
+		val1 = 4;
+		break;
+	};
+
+	msa_misc = 2 * val0 + 32 * val1 +
+		   ((video->color_fmt == Y_ONLY) ? (1 << 14) : 0);
+
+	return msa_misc;
+}
+
+int cdn_dp_config_video(struct cdn_dp_device *dp)
+{
+	struct video_info *video = &dp->video_info;
+	struct drm_display_mode *mode = &dp->mode;
+	u32 val, link_rate;
+	u8 bit_per_pix;
+	int ret;
+
+	bit_per_pix = (video->color_fmt == YCBCR_4_2_2) ?
+		      (video->color_depth * 2) : (video->color_depth * 3);
+
+	val = VIF_BYPASS_INTERLACE;
+
+	ret = cdn_dp_reg_write(dp, BND_HSYNC2VSYNC, val);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_reg_write(dp, HSYNC2VSYNC_POL_CTRL, 0);
+	if (ret)
+		return ret;
+
+	link_rate = drm_dp_bw_code_to_link_rate(dp->link.rate) / 1000;
+
+	val = TU_SIZE * mode->clock * bit_per_pix;
+	val /= dp->link.num_lanes * link_rate * 8 * 1000;
+	if (mode->clock > 500000)
+		val++;
+	val += TU_SIZE << 8;
+
+	ret = cdn_dp_reg_write(dp, DP_FRAMER_TU, val);
+	if (ret)
+		return ret;
+
+	switch (video->color_depth) {
+	case 6:
+		val = BCS_6;
+		break;
+	case 8:
+		val = BCS_8;
+		break;
+	case 10:
+		val = BCS_10;
+		break;
+	case 12:
+		val = BCS_12;
+		break;
+	case 16:
+		val = BCS_16;
+		break;
+	};
+
+	val += video->color_fmt << 8;
+	ret = cdn_dp_reg_write(dp, DP_FRAMER_PXL_REPR, val);
+	if (ret)
+		return ret;
+
+	val = video->h_sync_polarity ? DP_FRAMER_SP_HSP : 0;
+	val |= video->v_sync_polarity ? DP_FRAMER_SP_VSP : 0;
+	ret = cdn_dp_reg_write(dp, DP_FRAMER_SP, val);
+	if (ret)
+		return ret;
+
+	val = (mode->hsync_start - mode->hdisplay) << 16;
+	val |= mode->htotal - mode->hsync_end;
+	ret = cdn_dp_reg_write(dp, DP_FRONT_BACK_PORCH, val);
+	if (ret)
+		return ret;
+
+	val = mode->hdisplay * bit_per_pix / 8;
+	ret = cdn_dp_reg_write(dp, DP_BYTE_COUNT, val);
+	if (ret)
+		return ret;
+
+	val = mode->htotal | ((mode->htotal - mode->hsync_start) << 16);
+	ret = cdn_dp_reg_write(dp, MSA_HORIZONTAL_0, val);
+	if (ret)
+		return ret;
+
+	val = mode->hsync_end - mode->hsync_start;
+	val |= (mode->hdisplay << 16) | (video->h_sync_polarity << 15);
+	ret = cdn_dp_reg_write(dp, MSA_HORIZONTAL_1, val);
+	if (ret)
+		return ret;
+
+	val = mode->vtotal;
+	val |= ((mode->vtotal - mode->vsync_start) << 16);
+
+	ret = cdn_dp_reg_write(dp, MSA_VERTICAL_0, val);
+	if (ret)
+		return ret;
+
+	val = mode->vsync_end - mode->vsync_start;
+	val |= mode->vdisplay << 16;
+	val |= (video->v_sync_polarity << 15);
+	ret = cdn_dp_reg_write(dp, MSA_VERTICAL_1, val);
+	if (ret)
+		return ret;
+
+	val = cdn_dp_get_msa_misc(video, mode);
+	ret = cdn_dp_reg_write(dp, MSA_MISC, val);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_reg_write(dp, STREAM_CONFIG, 1);
+	if (ret)
+		return ret;
+
+	val = mode->hsync_end - mode->hsync_start;
+	val |= (mode->hdisplay << 16);
+	ret = cdn_dp_reg_write(dp, DP_HORIZONTAL, val);
+	if (ret)
+		return ret;
+
+	val = mode->vtotal;
+	val -= (mode->vtotal - mode->vdisplay);
+	val |= (mode->vtotal - mode->vsync_start) << 16;
+
+	ret = cdn_dp_reg_write(dp, DP_VERTICAL_0, val);
+	if (ret)
+		return ret;
+
+	val = mode->vtotal;
+	ret = cdn_dp_reg_write(dp, DP_VERTICAL_1, val);
+	if (ret)
+		return ret;
+
+	val =  0;
+	return cdn_dp_reg_write_bit(dp, DP_VB_ID, 2, 1, val);
+}
+
+int cdn_dp_audio_stop(struct cdn_dp_device *dp, struct audio_info *audio)
+{
+	int ret = cdn_dp_reg_write(dp, AUDIO_PACK_CONTROL, AUDIO_PACK_EN(0));
+
+	if (ret)
+		return ret;
+
+	if (audio->format == AFMT_SPDIF)
+		clk_disable_unprepare(dp->spdif_clk);
+
+	return 0;
+}
+
+int cdn_dp_audio_mute(struct cdn_dp_device *dp, bool enable)
+{
+	return cdn_dp_reg_write_bit(dp, DP_VB_ID, 4, 1, enable);
+}
+
+int cdn_dp_audio_config_set(struct cdn_dp_device *dp, struct audio_info *audio)
+{
+	int lanes_param, i2s_port_en_val, val, i;
+	int ret;
+
+	if (audio->channels == 2 && dp->link.num_lanes == 1)
+		lanes_param = 1;
+	else if (audio->channels == 2)
+		lanes_param = 3;
+	else
+		lanes_param = 0;
+
+	if (audio->channels == 2)
+		i2s_port_en_val = 1;
+	else if (audio->channels == 4)
+		i2s_port_en_val = 3;
+	else
+		i2s_port_en_val = 0xf;
+
+	ret = cdn_dp_reg_write(dp, CM_LANE_CTRL, 0x8000);
+	if (ret)
+		return ret;
+
+	ret = cdn_dp_reg_write(dp, CM_CTRL, 0);
+	if (ret)
+		return ret;
+
+	if (audio->format == AFMT_I2S) {
+		writel(0x0, dp->regs + SPDIF_CTRL_ADDR);
+
+		writel(SYNC_WR_TO_CH_ZERO, dp->regs + FIFO_CNTL);
+
+		val = audio->channels - 1;
+		val |= (audio->channels / 2 - 1) << 5;
+		val |= BIT(8);
+		val |= lanes_param << 11;
+		writel(val, dp->regs + SMPL2PKT_CNFG);
+
+		if (audio->sample_width == 16)
+			val = 0;
+		else if (audio->sample_width == 24)
+			val = 1 << 9;
+		else
+			val = 2 << 9;
+
+		val |= (audio->channels - 1) << 2;
+		val |= i2s_port_en_val << 17;
+		val |= 2 << 11;
+		writel(val, dp->regs + AUDIO_SRC_CNFG);
+
+		for (i = 0; i < (audio->channels + 1) / 2; i++) {
+			if (audio->sample_width == 16)
+				val = (0x08 << 8) | (0x08 << 20);
+			else if (audio->sample_width == 24)
+				val = (0x0b << 8) | (0x0b << 20);
+
+			val |= ((2 * i) << 4) | ((2 * i + 1) << 16);
+			writel(val, dp->regs + STTS_BIT_CH(i));
+		}
+
+		switch (audio->sample_rate) {
+		case 32000:
+			val = SAMPLING_FREQ(3) |
+			      ORIGINAL_SAMP_FREQ(0xc);
+			break;
+		case 44100:
+			val = SAMPLING_FREQ(0) |
+			      ORIGINAL_SAMP_FREQ(0xf);
+			break;
+		case 48000:
+			val = SAMPLING_FREQ(2) |
+			      ORIGINAL_SAMP_FREQ(0xd);
+			break;
+		case 88200:
+			val = SAMPLING_FREQ(8) |
+			      ORIGINAL_SAMP_FREQ(0x7);
+			break;
+		case 96000:
+			val = SAMPLING_FREQ(0xa) |
+			      ORIGINAL_SAMP_FREQ(5);
+			break;
+		case 176400:
+			val = SAMPLING_FREQ(0xc) |
+			      ORIGINAL_SAMP_FREQ(3);
+			break;
+		case 192000:
+			val = SAMPLING_FREQ(0xe) |
+			      ORIGINAL_SAMP_FREQ(1);
+			break;
+		}
+		val |= 4;
+		writel(val, dp->regs + COM_CH_STTS_BITS);
+
+		writel(2, dp->regs + SMPL2PKT_CNTL);
+		writel(2, dp->regs + AUDIO_SRC_CNTL);
+	} else {
+		val = 0x1F0707;
+		writel(val, dp->regs + SPDIF_CTRL_ADDR);
+
+		writel(SYNC_WR_TO_CH_ZERO, dp->regs + FIFO_CNTL);
+
+		val = 0x101 | (3 << 11);
+		writel(val, dp->regs + SMPL2PKT_CNFG);
+		writel(2, dp->regs + SMPL2PKT_CNTL);
+
+		val = 0x3F0707;
+		writel(val, dp->regs + SPDIF_CTRL_ADDR);
+	}
+
+	if (audio->format == AFMT_SPDIF) {
+		clk_prepare_enable(dp->spdif_clk);
+		clk_set_rate(dp->spdif_clk, 400000000);
+	}
+
+	return cdn_dp_reg_write(dp, AUDIO_PACK_CONTROL, AUDIO_PACK_EN(1));
+}
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.h b/drivers/gpu/drm/rockchip/cdn-dp-reg.h
new file mode 100644
index 0000000..e775f12
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.h
@@ -0,0 +1,404 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author: Chris Zhong <zyw@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _CDN_DP_REG_H
+#define _CDN_DP_REG_H
+
+#include <linux/bitops.h>
+
+#define ADDR_IMEM		0x10000
+#define ADDR_DMEM		0x20000
+
+/* APB CFG addr */
+#define APB_CTRL			0
+#define XT_INT_CTRL			0x04
+#define MAILBOX_FULL_ADDR		0x08
+#define MAILBOX_EMPTY_ADDR		0x0c
+#define MAILBOX0_WR_DATA		0x10
+#define MAILBOX0_RD_DATA		0x14
+#define KEEP_ALIVE			0x18
+#define VER_L				0x1c
+#define VER_H				0x20
+#define VER_LIB_L_ADDR			0x24
+#define VER_LIB_H_ADDR			0x28
+#define SW_DEBUG_L			0x2c
+#define SW_DEBUG_H			0x30
+#define MAILBOX_INT_MASK		0x34
+#define MAILBOX_INT_STATUS		0x38
+#define SW_CLK_L			0x3c
+#define SW_CLK_H			0x40
+#define SW_EVENTS0			0x44
+#define SW_EVENTS1			0x48
+#define SW_EVENTS2			0x4c
+#define SW_EVENTS3			0x50
+#define XT_OCD_CTRL			0x60
+#define APB_INT_MASK			0x6c
+#define APB_STATUS_MASK			0x70
+
+/* audio decoder addr */
+#define AUDIO_SRC_CNTL			0x30000
+#define AUDIO_SRC_CNFG			0x30004
+#define COM_CH_STTS_BITS		0x30008
+#define STTS_BIT_CH(x)			(0x3000c + ((x) << 2))
+#define SPDIF_CTRL_ADDR			0x3004c
+#define SPDIF_CH1_CS_3100_ADDR		0x30050
+#define SPDIF_CH1_CS_6332_ADDR		0x30054
+#define SPDIF_CH1_CS_9564_ADDR		0x30058
+#define SPDIF_CH1_CS_12796_ADDR		0x3005c
+#define SPDIF_CH1_CS_159128_ADDR	0x30060
+#define SPDIF_CH1_CS_191160_ADDR	0x30064
+#define SPDIF_CH2_CS_3100_ADDR		0x30068
+#define SPDIF_CH2_CS_6332_ADDR		0x3006c
+#define SPDIF_CH2_CS_9564_ADDR		0x30070
+#define SPDIF_CH2_CS_12796_ADDR		0x30074
+#define SPDIF_CH2_CS_159128_ADDR	0x30078
+#define SPDIF_CH2_CS_191160_ADDR	0x3007c
+#define SMPL2PKT_CNTL			0x30080
+#define SMPL2PKT_CNFG			0x30084
+#define FIFO_CNTL			0x30088
+#define FIFO_STTS			0x3008c
+
+/* source pif addr */
+#define SOURCE_PIF_WR_ADDR		0x30800
+#define SOURCE_PIF_WR_REQ		0x30804
+#define SOURCE_PIF_RD_ADDR		0x30808
+#define SOURCE_PIF_RD_REQ		0x3080c
+#define SOURCE_PIF_DATA_WR		0x30810
+#define SOURCE_PIF_DATA_RD		0x30814
+#define SOURCE_PIF_FIFO1_FLUSH		0x30818
+#define SOURCE_PIF_FIFO2_FLUSH		0x3081c
+#define SOURCE_PIF_STATUS		0x30820
+#define SOURCE_PIF_INTERRUPT_SOURCE	0x30824
+#define SOURCE_PIF_INTERRUPT_MASK	0x30828
+#define SOURCE_PIF_PKT_ALLOC_REG	0x3082c
+#define SOURCE_PIF_PKT_ALLOC_WR_EN	0x30830
+#define SOURCE_PIF_SW_RESET		0x30834
+
+/* bellow registers need access by mailbox */
+/* source car addr */
+#define SOURCE_HDTX_CAR			0x0900
+#define SOURCE_DPTX_CAR			0x0904
+#define SOURCE_PHY_CAR			0x0908
+#define SOURCE_CEC_CAR			0x090c
+#define SOURCE_CBUS_CAR			0x0910
+#define SOURCE_PKT_CAR			0x0918
+#define SOURCE_AIF_CAR			0x091c
+#define SOURCE_CIPHER_CAR		0x0920
+#define SOURCE_CRYPTO_CAR		0x0924
+
+/* clock meters addr */
+#define CM_CTRL				0x0a00
+#define CM_I2S_CTRL			0x0a04
+#define CM_SPDIF_CTRL			0x0a08
+#define CM_VID_CTRL			0x0a0c
+#define CM_LANE_CTRL			0x0a10
+#define I2S_NM_STABLE			0x0a14
+#define I2S_NCTS_STABLE			0x0a18
+#define SPDIF_NM_STABLE			0x0a1c
+#define SPDIF_NCTS_STABLE		0x0a20
+#define NMVID_MEAS_STABLE		0x0a24
+#define I2S_MEAS			0x0a40
+#define SPDIF_MEAS			0x0a80
+#define NMVID_MEAS			0x0ac0
+
+/* source vif addr */
+#define BND_HSYNC2VSYNC			0x0b00
+#define HSYNC2VSYNC_F1_L1		0x0b04
+#define HSYNC2VSYNC_F2_L1		0x0b08
+#define HSYNC2VSYNC_STATUS		0x0b0c
+#define HSYNC2VSYNC_POL_CTRL		0x0b10
+
+/* dptx phy addr */
+#define DP_TX_PHY_CONFIG_REG		0x2000
+#define DP_TX_PHY_STATUS_REG		0x2004
+#define DP_TX_PHY_SW_RESET		0x2008
+#define DP_TX_PHY_SCRAMBLER_SEED	0x200c
+#define DP_TX_PHY_TRAINING_01_04	0x2010
+#define DP_TX_PHY_TRAINING_05_08	0x2014
+#define DP_TX_PHY_TRAINING_09_10	0x2018
+#define TEST_COR			0x23fc
+
+/* dptx hpd addr */
+#define HPD_IRQ_DET_MIN_TIMER		0x2100
+#define HPD_IRQ_DET_MAX_TIMER		0x2104
+#define HPD_UNPLGED_DET_MIN_TIMER	0x2108
+#define HPD_STABLE_TIMER		0x210c
+#define HPD_FILTER_TIMER		0x2110
+#define HPD_EVENT_MASK			0x211c
+#define HPD_EVENT_DET			0x2120
+
+/* dpyx framer addr */
+#define DP_FRAMER_GLOBAL_CONFIG		0x2200
+#define DP_SW_RESET			0x2204
+#define DP_FRAMER_TU			0x2208
+#define DP_FRAMER_PXL_REPR		0x220c
+#define DP_FRAMER_SP			0x2210
+#define AUDIO_PACK_CONTROL		0x2214
+#define DP_VC_TABLE(x)			(0x2218 + ((x) << 2))
+#define DP_VB_ID			0x2258
+#define DP_MTPH_LVP_CONTROL		0x225c
+#define DP_MTPH_SYMBOL_VALUES		0x2260
+#define DP_MTPH_ECF_CONTROL		0x2264
+#define DP_MTPH_ACT_CONTROL		0x2268
+#define DP_MTPH_STATUS			0x226c
+#define DP_INTERRUPT_SOURCE		0x2270
+#define DP_INTERRUPT_MASK		0x2274
+#define DP_FRONT_BACK_PORCH		0x2278
+#define DP_BYTE_COUNT			0x227c
+
+/* dptx stream addr */
+#define MSA_HORIZONTAL_0		0x2280
+#define MSA_HORIZONTAL_1		0x2284
+#define MSA_VERTICAL_0			0x2288
+#define MSA_VERTICAL_1			0x228c
+#define MSA_MISC			0x2290
+#define STREAM_CONFIG			0x2294
+#define AUDIO_PACK_STATUS		0x2298
+#define VIF_STATUS			0x229c
+#define PCK_STUFF_STATUS_0		0x22a0
+#define PCK_STUFF_STATUS_1		0x22a4
+#define INFO_PACK_STATUS		0x22a8
+#define RATE_GOVERNOR_STATUS		0x22ac
+#define DP_HORIZONTAL			0x22b0
+#define DP_VERTICAL_0			0x22b4
+#define DP_VERTICAL_1			0x22b8
+#define DP_BLOCK_SDP			0x22bc
+
+/* dptx glbl addr */
+#define DPTX_LANE_EN			0x2300
+#define DPTX_ENHNCD			0x2304
+#define DPTX_INT_MASK			0x2308
+#define DPTX_INT_STATUS			0x230c
+
+/* dp aux addr */
+#define DP_AUX_HOST_CONTROL		0x2800
+#define DP_AUX_INTERRUPT_SOURCE		0x2804
+#define DP_AUX_INTERRUPT_MASK		0x2808
+#define DP_AUX_SWAP_INVERSION_CONTROL	0x280c
+#define DP_AUX_SEND_NACK_TRANSACTION	0x2810
+#define DP_AUX_CLEAR_RX			0x2814
+#define DP_AUX_CLEAR_TX			0x2818
+#define DP_AUX_TIMER_STOP		0x281c
+#define DP_AUX_TIMER_CLEAR		0x2820
+#define DP_AUX_RESET_SW			0x2824
+#define DP_AUX_DIVIDE_2M		0x2828
+#define DP_AUX_TX_PREACHARGE_LENGTH	0x282c
+#define DP_AUX_FREQUENCY_1M_MAX		0x2830
+#define DP_AUX_FREQUENCY_1M_MIN		0x2834
+#define DP_AUX_RX_PRE_MIN		0x2838
+#define DP_AUX_RX_PRE_MAX		0x283c
+#define DP_AUX_TIMER_PRESET		0x2840
+#define DP_AUX_NACK_FORMAT		0x2844
+#define DP_AUX_TX_DATA			0x2848
+#define DP_AUX_RX_DATA			0x284c
+#define DP_AUX_TX_STATUS		0x2850
+#define DP_AUX_RX_STATUS		0x2854
+#define DP_AUX_RX_CYCLE_COUNTER		0x2858
+#define DP_AUX_MAIN_STATES		0x285c
+#define DP_AUX_MAIN_TIMER		0x2860
+#define DP_AUX_AFE_OUT			0x2864
+
+/* crypto addr */
+#define CRYPTO_HDCP_REVISION		0x5800
+#define HDCP_CRYPTO_CONFIG		0x5804
+#define CRYPTO_INTERRUPT_SOURCE		0x5808
+#define CRYPTO_INTERRUPT_MASK		0x580c
+#define CRYPTO22_CONFIG			0x5818
+#define CRYPTO22_STATUS			0x581c
+#define SHA_256_DATA_IN			0x583c
+#define SHA_256_DATA_OUT_(x)		(0x5850 + ((x) << 2))
+#define AES_32_KEY_(x)			(0x5870 + ((x) << 2))
+#define AES_32_DATA_IN			0x5880
+#define AES_32_DATA_OUT_(x)		(0x5884 + ((x) << 2))
+#define CRYPTO14_CONFIG			0x58a0
+#define CRYPTO14_STATUS			0x58a4
+#define CRYPTO14_PRNM_OUT		0x58a8
+#define CRYPTO14_KM_0			0x58ac
+#define CRYPTO14_KM_1			0x58b0
+#define CRYPTO14_AN_0			0x58b4
+#define CRYPTO14_AN_1			0x58b8
+#define CRYPTO14_YOUR_KSV_0		0x58bc
+#define CRYPTO14_YOUR_KSV_1		0x58c0
+#define CRYPTO14_MI_0			0x58c4
+#define CRYPTO14_MI_1			0x58c8
+#define CRYPTO14_TI_0			0x58cc
+#define CRYPTO14_KI_0			0x58d0
+#define CRYPTO14_KI_1			0x58d4
+#define CRYPTO14_BLOCKS_NUM		0x58d8
+#define CRYPTO14_KEY_MEM_DATA_0		0x58dc
+#define CRYPTO14_KEY_MEM_DATA_1		0x58e0
+#define CRYPTO14_SHA1_MSG_DATA		0x58e4
+#define CRYPTO14_SHA1_V_VALUE_(x)	(0x58e8 + ((x) << 2))
+#define TRNG_CTRL			0x58fc
+#define TRNG_DATA_RDY			0x5900
+#define TRNG_DATA			0x5904
+
+/* cipher addr */
+#define HDCP_REVISION			0x60000
+#define INTERRUPT_SOURCE		0x60004
+#define INTERRUPT_MASK			0x60008
+#define HDCP_CIPHER_CONFIG		0x6000c
+#define AES_128_KEY_0			0x60010
+#define AES_128_KEY_1			0x60014
+#define AES_128_KEY_2			0x60018
+#define AES_128_KEY_3			0x6001c
+#define AES_128_RANDOM_0		0x60020
+#define AES_128_RANDOM_1		0x60024
+#define CIPHER14_KM_0			0x60028
+#define CIPHER14_KM_1			0x6002c
+#define CIPHER14_STATUS			0x60030
+#define CIPHER14_RI_PJ_STATUS		0x60034
+#define CIPHER_MODE			0x60038
+#define CIPHER14_AN_0			0x6003c
+#define CIPHER14_AN_1			0x60040
+#define CIPHER22_AUTH			0x60044
+#define CIPHER14_R0_DP_STATUS		0x60048
+#define CIPHER14_BOOTSTRAP		0x6004c
+
+#define APB_IRAM_PATH			BIT(2)
+#define APB_DRAM_PATH			BIT(1)
+#define APB_XT_RESET			BIT(0)
+
+/* mailbox */
+#define MB_OPCODE_ID			0
+#define MB_MODULE_ID			1
+#define MB_SIZE_MSB_ID			2
+#define MB_SIZE_LSB_ID			3
+#define MB_DATA_ID			4
+
+#define MB_MODULE_ID_DP_TX		0x01
+#define MB_MODULE_ID_HDCP_TX		0x07
+#define MB_MODULE_ID_HDCP_RX		0x08
+#define MB_MODULE_ID_HDCP_GENERAL	0x09
+#define MB_MODULE_ID_GENERAL		0x0a
+
+/* general opcode */
+#define GENERAL_MAIN_CONTROL            0x01
+#define GENERAL_TEST_ECHO               0x02
+#define GENERAL_BUS_SETTINGS            0x03
+#define GENERAL_TEST_ACCESS             0x04
+
+#define DPTX_SET_POWER_MNG			0x00
+#define DPTX_SET_HOST_CAPABILITIES		0x01
+#define DPTX_GET_EDID				0x02
+#define DPTX_READ_DPCD				0x03
+#define DPTX_WRITE_DPCD				0x04
+#define DPTX_ENABLE_EVENT			0x05
+#define DPTX_WRITE_REGISTER			0x06
+#define DPTX_READ_REGISTER			0x07
+#define DPTX_WRITE_FIELD			0x08
+#define DPTX_TRAINING_CONTROL			0x09
+#define DPTX_READ_EVENT				0x0a
+#define DPTX_READ_LINK_STAT			0x0b
+#define DPTX_SET_VIDEO				0x0c
+#define DPTX_SET_AUDIO				0x0d
+#define DPTX_GET_LAST_AUX_STAUS			0x0e
+#define DPTX_SET_LINK_BREAK_POINT		0x0f
+#define DPTX_FORCE_LANES			0x10
+#define DPTX_HPD_STATE				0x11
+
+#define DPTX_EVENT_ENABLE_HPD			BIT(0)
+#define DPTX_EVENT_ENABLE_TRAINING		BIT(1)
+
+#define LINK_TRAINING_NOT_ACTIVE		0
+#define LINK_TRAINING_RUN			1
+#define LINK_TRAINING_RESTART			2
+
+#define CONTROL_VIDEO_IDLE			0
+#define CONTROL_VIDEO_VALID			1
+
+#define VIF_BYPASS_INTERLACE			BIT(13)
+#define INTERLACE_FMT_DET			BIT(12)
+#define INTERLACE_DTCT_WIN			0x20
+
+#define DP_FRAMER_SP_INTERLACE_EN		BIT(2)
+#define DP_FRAMER_SP_HSP			BIT(1)
+#define DP_FRAMER_SP_VSP			BIT(0)
+
+/* capability */
+#define AUX_HOST_INVERT				3
+#define	FAST_LT_SUPPORT				1
+#define FAST_LT_NOT_SUPPORT			0
+#define LANE_MAPPING_NORMAL			0xe4
+#define LANE_MAPPING_FLIPPED			0x1b
+#define ENHANCED				1
+
+#define	FULL_LT_STARTED				BIT(0)
+#define FASE_LT_STARTED				BIT(1)
+#define CLK_RECOVERY_FINISHED			BIT(2)
+#define EQ_PHASE_FINISHED			BIT(3)
+#define FASE_LT_START_FINISHED			BIT(4)
+#define CLK_RECOVERY_FAILED			BIT(5)
+#define EQ_PHASE_FAILED				BIT(6)
+#define FASE_LT_FAILED				BIT(7)
+
+#define DPTX_HPD_EVENT				BIT(0)
+#define DPTX_TRAINING_EVENT			BIT(1)
+#define HDCP_TX_STATUS_EVENT			BIT(4)
+#define HDCP2_TX_IS_KM_STORED_EVENT		BIT(5)
+#define HDCP2_TX_STORE_KM_EVENT			BIT(6)
+#define HDCP_TX_IS_RECEIVER_ID_VALID_EVENT	BIT(7)
+
+#define EDID_LENGTH_BYTE			0
+#define EDID_SEGMENT_BUMBER			1
+#define EDID_DATA				2
+#define EDID_BLOCK_SIZE				128
+
+#define TU_SIZE					64
+
+/* audio */
+#define AUDIO_PACK_EN(x)			((x) << 8)
+#define SAMPLING_FREQ(x)			((x) << 16)
+#define ORIGINAL_SAMP_FREQ(x)			((x) << 24)
+#define SYNC_WR_TO_CH_ZERO			BIT(1)
+
+enum voltage_swing_level {
+	VOLTAGE_LEVEL_0,
+	VOLTAGE_LEVEL_1,
+	VOLTAGE_LEVEL_2,
+	VOLTAGE_LEVEL_3,
+};
+
+enum pre_emphasis_level {
+	PRE_EMPHASIS_LEVEL_0,
+	PRE_EMPHASIS_LEVEL_1,
+	PRE_EMPHASIS_LEVEL_2,
+	PRE_EMPHASIS_LEVEL_3,
+};
+
+enum pattern_set {
+	PRBS7		= BIT(0),
+	D10_2		= BIT(1),
+	TRAINING_PTN1	= BIT(2),
+	TRAINING_PTN2	= BIT(3),
+	DP_NONE		= BIT(4)
+};
+
+enum VIC_PXL_ENCODING_FORMAT {
+	PXL_RGB = 0x1,
+	YCBCR_4_4_4 = 0x2,
+	YCBCR_4_2_2 = 0x4,
+	YCBCR_4_2_0 = 0x8,
+	Y_ONLY = 0x10,
+};
+
+enum VIC_COLOR_DEPTH {
+	BCS_6 = 0x1,
+	BCS_8 = 0x2,
+	BCS_10 = 0x4,
+	BCS_12 = 0x8,
+	BCS_16 = 0x10,
+};
+
+#endif /* _CDN_DP_REG_H */
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index edd7ec2..98302b3 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -969,7 +969,7 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
 		vop_dsp_hold_valid_irq_disable(vop);
 	}
 
-	pin_pol = 0x8;
+	pin_pol = (s->output_type == DRM_MODE_CONNECTOR_DisplayPort) ? 0 : 0x8;
 	pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : 1;
 	pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? 0 : (1 << 1);
 	VOP_CTRL_SET(vop, pin_pol, pin_pol);
@@ -991,6 +991,10 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
 		VOP_CTRL_SET(vop, mipi_pin_pol, pin_pol);
 		VOP_CTRL_SET(vop, mipi_en, 1);
 		break;
+	case DRM_MODE_CONNECTOR_DisplayPort:
+		VOP_CTRL_SET(vop, dp_pin_pol, pin_pol);
+		VOP_CTRL_SET(vop, dp_en, 1);
+		break;
 	default:
 		DRM_ERROR("unsupport connector_type[%d]\n", s->output_type);
 	}
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
index ff4f52e..50a045c 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -45,6 +45,7 @@ struct vop_ctrl {
 	struct vop_reg edp_en;
 	struct vop_reg hdmi_en;
 	struct vop_reg mipi_en;
+	struct vop_reg dp_en;
 	struct vop_reg out_mode;
 	struct vop_reg dither_down;
 	struct vop_reg dither_up;
@@ -53,6 +54,7 @@ struct vop_ctrl {
 	struct vop_reg hdmi_pin_pol;
 	struct vop_reg edp_pin_pol;
 	struct vop_reg mipi_pin_pol;
+	struct vop_reg dp_pin_pol;
 
 	struct vop_reg htotal_pw;
 	struct vop_reg hact_st_end;
diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index 5b1ae1f..dcf172e 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -281,6 +281,7 @@ static const struct vop_data rk3288_vop = {
 static const struct vop_ctrl rk3399_ctrl_data = {
 	.standby = VOP_REG(RK3399_SYS_CTRL, 0x1, 22),
 	.gate_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 23),
+	.dp_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 11),
 	.rgb_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 12),
 	.hdmi_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 13),
 	.edp_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 14),
@@ -290,6 +291,7 @@ static const struct vop_ctrl rk3399_ctrl_data = {
 	.data_blank = VOP_REG(RK3399_DSP_CTRL0, 0x1, 19),
 	.out_mode = VOP_REG(RK3399_DSP_CTRL0, 0xf, 0),
 	.rgb_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 16),
+	.dp_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 16),
 	.hdmi_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 20),
 	.edp_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 24),
 	.mipi_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 28),
-- 
2.6.3

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY
  2016-06-13  9:39 ` [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY Chris Zhong
@ 2016-06-14 22:51   ` Rob Herring
  2016-06-15 22:11   ` Heiko Stuebner
  1 sibling, 0 replies; 18+ messages in thread
From: Rob Herring @ 2016-06-14 22:51 UTC (permalink / raw)
  To: Chris Zhong
  Cc: dianders, tfiga, heiko, yzq, groeck, linux-rockchip, Pawel Moll,
	Mark Rutland, Ian Campbell, Kumar Gala, devicetree,
	linux-arm-kernel, linux-kernel

On Mon, Jun 13, 2016 at 05:39:46PM +0800, Chris Zhong wrote:
> This patch adds a binding that describes the Rockchip USB Type-C PHY
> for rk3399
> 
> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
> 
> ---
> 
> Changes in v2:
> - add some registers description
> 
> Changes in v1:
> - add extcon node description
> - move the registers in phy driver
> - remove the suffix of reset
> 
>  .../devicetree/bindings/phy/phy-rockchip-typec.txt | 77 ++++++++++++++++++++++
>  1 file changed, 77 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> 
> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> new file mode 100644
> index 0000000..430920c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> @@ -0,0 +1,77 @@
> +* ROCKCHIP type-c PHY
> +---------------------
> +
> +Required properties:
> + - compatible : should be "rockchip,rk3399-typec-phy0" or
> +			 "rockchip,rk3399-typec-phy1"

Unless these blocks are different, these should be be same compat 
string.

> + - reg: Address and length of the usb phy control register set
> + - rockchip,grf : phandle to the syscon managing the "general
> +   register files"
> + - clocks : phandle + clock specifier for the phy clocks
> + - clock-names : string, clock name, must be "tcpdcore", "tcpdphy_ref";
> + - resets : a list of phandle + reset specifier pairs
> + - reset-names : string reset name, must be:
> +		 "tcphy", "tcphy_pipe", "uphy_tcphy"
> + - #phy-cells : Must be 0.  See ./phy-bindings.txt for details.
> + - extcon : extcon specifier for the Power Delivery
> +
> +Note, there are 2 type-c phys for RK3399, and they are almost identical, except
> +these registers(description below), every register node contains 3 sections:
> +offset, enable bit, write mask bit.
> + - rockchip,typec_conn_dir : the register of type-c connector direction,

Don't use underscores in property names.

> +   for type-c phy0, it must be <0xe580 0 16>;
> +   for type-c phy1, it must be <0xe58c 0 16>;
> + - rockchip,usb3tousb2_en : the register of type-c force usb3 to usb2 enable
> +   control.
> +   for type-c phy0, it must be <0xe580 3 19>;
> +   for type-c phy1, it must be <0xe58c 3 19>;
> + - rockchip,external_psm : the register of type-c phy external psm clock
> +   selection.
> +   for type-c phy0, it must be <0xe588 14 30>;
> +   for type-c phy1, it must be <0xe594 14 30>;
> + - rockchip,pipe_status : the register of type-c phy pipe status.
> +   for type-c phy0, it must be <0xe5c0 0 0>;
> +   for type-c phy1, it must be <0xe5c0 16 16>;
> + - rockchip,uphy_dp_sel : the register of type-c phy selection for DP
> +   for type-c phy0, it must be <0x6268 19 19>;
> +   for type-c phy1, it must be <0x6268 3 19>;

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 3/4] Documentation: bindings: add dt documentation for cdn DP controller
  2016-06-13  9:39 ` [v2 PATCH 3/4] Documentation: bindings: add dt documentation for cdn DP controller Chris Zhong
@ 2016-06-14 23:12   ` Rob Herring
  0 siblings, 0 replies; 18+ messages in thread
From: Rob Herring @ 2016-06-14 23:12 UTC (permalink / raw)
  To: Chris Zhong
  Cc: dianders, tfiga, heiko, yzq, groeck, linux-rockchip, Mark Yao,
	Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, dri-devel,
	devicetree, linux-arm-kernel, linux-kernel

On Mon, Jun 13, 2016 at 05:39:48PM +0800, Chris Zhong wrote:
> This patch adds a binding that describes the cdn DP controller for
> rk3399.
> 
> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
> 
> ---
> 
> Changes in v2: None
> Changes in v1:
> - add extcon node description
> - add #sound-dai-cells description
> 
>  .../bindings/display/rockchip/cdn-dp-rockchip.txt  | 62 ++++++++++++++++++++++
>  1 file changed, 62 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
> new file mode 100644
> index 0000000..4a66fc3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt
> @@ -0,0 +1,62 @@
> +Rockchip RK3399 specific extensions to the cdn Display Port
> +================================
> +
> +Required properties:
> +- compatible: must be "rockchip,cdn-dp"

SoC specific compatible string please.

> +
> +- reg: physical base address of the controller and length
> +
> +- clocks: from common clock binding: handle to dp clock.
> +
> +- clock-names: from common clock binding:
> +	       Required elements: "core_clk" "pclk" "spdif"
> +
> +- rockchip,grf: this soc should set GRF regs, so need get grf here.
> +
> +- ports: contain a port nodes with endpoint definitions as defined in
> +	 Documentation/devicetree/bindings/media/video-interfaces.txt.
> +	 contained 2 endpoints, connecting to the output of vop.
> +
> +- phys: from general PHY binding: the phandle for the PHY device.
> +
> +- extcon: extcon specifier for the Power Delivery
> +
> +- #sound-dai-cells = it must be 1 if your system is using 2 DAIs: I2S, SPDIF
> +
> +-------------------------------------------------------------------------------
> +
> +Example:
> +	cdn_dp: dp@fec00000 {
> +		compatible = "rockchip,cdn-dp";
> +		reg = <0x0 0xfec00000 0x0 0x100000>;
> +		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
> +		clocks = <&cru SCLK_DP_CORE>, <&cru PCLK_DP_CTRL>,
> +			 <&cru SCLK_SPDIF_REC_DPTX>;
> +		clock-names = "core_clk", "pclk", "spdif";
> +		phys = <&tcphy0>;
> +		extcon = <&fusb1>;
> +		rockchip,grf = <&grf>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		#sound-dai-cells = <1>;
> +
> +		ports {

> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <1>;

Don't need these with a single port.

> +
> +			dp_in: port {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				dp_in_vopb: endpoint@0 {
> +					reg = <0>;
> +					remote-endpoint = <&vopb_out_dp>;
> +				};
> +
> +				dp_in_vopl: endpoint@1 {
> +					reg = <1>;
> +					remote-endpoint = <&vopl_out_dp>;
> +				};
> +			};
> +		};
> +	};
> -- 
> 2.6.3
> 
> 

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY
  2016-06-13  9:39 ` [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY Chris Zhong
  2016-06-14 22:51   ` Rob Herring
@ 2016-06-15 22:11   ` Heiko Stuebner
  2016-06-16  0:31     ` Chris Zhong
  1 sibling, 1 reply; 18+ messages in thread
From: Heiko Stuebner @ 2016-06-15 22:11 UTC (permalink / raw)
  To: Chris Zhong
  Cc: dianders, tfiga, yzq, groeck, linux-rockchip, Rob Herring,
	Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, devicetree,
	linux-arm-kernel, linux-kernel

Am Montag, 13. Juni 2016, 17:39:46 schrieb Chris Zhong:
> This patch adds a binding that describes the Rockchip USB Type-C PHY
> for rk3399
> 
> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
> 
> ---
> 
> Changes in v2:
> - add some registers description
> 
> Changes in v1:
> - add extcon node description
> - move the registers in phy driver
> - remove the suffix of reset
> 
>  .../devicetree/bindings/phy/phy-rockchip-typec.txt | 77
> ++++++++++++++++++++++ 1 file changed, 77 insertions(+)
>  create mode 100644
> Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> 
> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt new file
> mode 100644
> index 0000000..430920c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> @@ -0,0 +1,77 @@
> +* ROCKCHIP type-c PHY
> +---------------------
> +
> +Required properties:
> + - compatible : should be "rockchip,rk3399-typec-phy0" or
> +			 "rockchip,rk3399-typec-phy1"
> + - reg: Address and length of the usb phy control register set
> + - rockchip,grf : phandle to the syscon managing the "general
> +   register files"
> + - clocks : phandle + clock specifier for the phy clocks
> + - clock-names : string, clock name, must be "tcpdcore", "tcpdphy_ref";
> + - resets : a list of phandle + reset specifier pairs
> + - reset-names : string reset name, must be:
> +		 "tcphy", "tcphy_pipe", "uphy_tcphy"
> + - #phy-cells : Must be 0.  See ./phy-bindings.txt for details.
> + - extcon : extcon specifier for the Power Delivery
> +
> +Note, there are 2 type-c phys for RK3399, and they are almost identical,
> except +these registers(description below), every register node contains
> 3 sections: +offset, enable bit, write mask bit.
> + - rockchip,typec_conn_dir : the register of type-c connector direction,
> +   for type-c phy0, it must be <0xe580 0 16>;
> +   for type-c phy1, it must be <0xe58c 0 16>;

I think I said this already, but these register-lists would be much happier 
being defined inside the driver - see how Frank managed this on his usb2phy 
please.

Heiko

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY
  2016-06-15 22:11   ` Heiko Stuebner
@ 2016-06-16  0:31     ` Chris Zhong
  2016-06-16  7:49       ` Tomasz Figa
  0 siblings, 1 reply; 18+ messages in thread
From: Chris Zhong @ 2016-06-16  0:31 UTC (permalink / raw)
  To: Heiko Stuebner
  Cc: dianders, tfiga, yzq, groeck, linux-rockchip, Rob Herring,
	Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, devicetree,
	linux-arm-kernel, linux-kernel

Hi Heiko

On 06/16/2016 06:11 AM, Heiko Stuebner wrote:
> Am Montag, 13. Juni 2016, 17:39:46 schrieb Chris Zhong:
>> This patch adds a binding that describes the Rockchip USB Type-C PHY
>> for rk3399
>>
>> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
>>
>> ---
>>
>> Changes in v2:
>> - add some registers description
>>
>> Changes in v1:
>> - add extcon node description
>> - move the registers in phy driver
>> - remove the suffix of reset
>>
>>   .../devicetree/bindings/phy/phy-rockchip-typec.txt | 77
>> ++++++++++++++++++++++ 1 file changed, 77 insertions(+)
>>   create mode 100644
>> Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
>>
>> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
>> b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt new file
>> mode 100644
>> index 0000000..430920c
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
>> @@ -0,0 +1,77 @@
>> +* ROCKCHIP type-c PHY
>> +---------------------
>> +
>> +Required properties:
>> + - compatible : should be "rockchip,rk3399-typec-phy0" or
>> +			 "rockchip,rk3399-typec-phy1"
>> + - reg: Address and length of the usb phy control register set
>> + - rockchip,grf : phandle to the syscon managing the "general
>> +   register files"
>> + - clocks : phandle + clock specifier for the phy clocks
>> + - clock-names : string, clock name, must be "tcpdcore", "tcpdphy_ref";
>> + - resets : a list of phandle + reset specifier pairs
>> + - reset-names : string reset name, must be:
>> +		 "tcphy", "tcphy_pipe", "uphy_tcphy"
>> + - #phy-cells : Must be 0.  See ./phy-bindings.txt for details.
>> + - extcon : extcon specifier for the Power Delivery
>> +
>> +Note, there are 2 type-c phys for RK3399, and they are almost identical,
>> except +these registers(description below), every register node contains
>> 3 sections: +offset, enable bit, write mask bit.
>> + - rockchip,typec_conn_dir : the register of type-c connector direction,
>> +   for type-c phy0, it must be <0xe580 0 16>;
>> +   for type-c phy1, it must be <0xe58c 0 16>;
> I think I said this already, but these register-lists would be much happier
> being defined inside the driver - see how Frank managed this on his usb2phy
> please.
>
> Heiko
>
Yes, I move them into driver in v1 patch, but Rob Herring and Guenter 
Roeck recommend to put them back to dts.
These phy0 and phy1 are exactly the same, except these grf registers.



>

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY
  2016-06-16  0:31     ` Chris Zhong
@ 2016-06-16  7:49       ` Tomasz Figa
  2016-06-16  8:54         ` Heiko Stübner
  0 siblings, 1 reply; 18+ messages in thread
From: Tomasz Figa @ 2016-06-16  7:49 UTC (permalink / raw)
  To: Chris Zhong
  Cc: Heiko Stuebner, Douglas Anderson, yzq, groeck,
	open list:ARM/Rockchip SoC...,
	Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
	devicetree, linux-arm-kernel, linux-kernel

On Thu, Jun 16, 2016 at 9:31 AM, Chris Zhong <zyw@rock-chips.com> wrote:
> Hi Heiko
>
>
> On 06/16/2016 06:11 AM, Heiko Stuebner wrote:
>>
>> Am Montag, 13. Juni 2016, 17:39:46 schrieb Chris Zhong:
>>>
>>> This patch adds a binding that describes the Rockchip USB Type-C PHY
>>> for rk3399
>>>
>>> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
>>>
>>> ---
>>>
>>> Changes in v2:
>>> - add some registers description
>>>
>>> Changes in v1:
>>> - add extcon node description
>>> - move the registers in phy driver
>>> - remove the suffix of reset
>>>
>>>   .../devicetree/bindings/phy/phy-rockchip-typec.txt | 77
>>> ++++++++++++++++++++++ 1 file changed, 77 insertions(+)
>>>   create mode 100644
>>> Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
>>> b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt new file
>>> mode 100644
>>> index 0000000..430920c
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
>>> @@ -0,0 +1,77 @@
>>> +* ROCKCHIP type-c PHY
>>> +---------------------
>>> +
>>> +Required properties:
>>> + - compatible : should be "rockchip,rk3399-typec-phy0" or
>>> +                        "rockchip,rk3399-typec-phy1"
>>> + - reg: Address and length of the usb phy control register set
>>> + - rockchip,grf : phandle to the syscon managing the "general
>>> +   register files"
>>> + - clocks : phandle + clock specifier for the phy clocks
>>> + - clock-names : string, clock name, must be "tcpdcore", "tcpdphy_ref";
>>> + - resets : a list of phandle + reset specifier pairs
>>> + - reset-names : string reset name, must be:
>>> +                "tcphy", "tcphy_pipe", "uphy_tcphy"
>>> + - #phy-cells : Must be 0.  See ./phy-bindings.txt for details.
>>> + - extcon : extcon specifier for the Power Delivery
>>> +
>>> +Note, there are 2 type-c phys for RK3399, and they are almost identical,
>>> except +these registers(description below), every register node contains
>>> 3 sections: +offset, enable bit, write mask bit.
>>> + - rockchip,typec_conn_dir : the register of type-c connector direction,
>>> +   for type-c phy0, it must be <0xe580 0 16>;
>>> +   for type-c phy1, it must be <0xe58c 0 16>;
>>
>> I think I said this already, but these register-lists would be much
>> happier
>> being defined inside the driver - see how Frank managed this on his
>> usb2phy
>> please.
>>
>> Heiko
>>
> Yes, I move them into driver in v1 patch, but Rob Herring and Guenter Roeck
> recommend to put them back to dts.
> These phy0 and phy1 are exactly the same, except these grf registers.

I think having the registers in dts isn't a bad idea. It might be
actually even useful to bring up this PHY on new SoCs, if they happen
to have the same PHY, just different plumbing.

But I suppose we don't need two separate compatible strings for phy0
and phy1 anymore as Rob pointed, just one "rockchip,rk3399-typec-phy".

After the above is fixed and underscores in property names are
replaced with dashes, feel free to add my Reviewed-by.

Best regards,
Tomasz

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY
  2016-06-16  7:49       ` Tomasz Figa
@ 2016-06-16  8:54         ` Heiko Stübner
  0 siblings, 0 replies; 18+ messages in thread
From: Heiko Stübner @ 2016-06-16  8:54 UTC (permalink / raw)
  To: Tomasz Figa
  Cc: Chris Zhong, Douglas Anderson, yzq, groeck,
	open list:ARM/Rockchip SoC...,
	Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
	devicetree, linux-arm-kernel, linux-kernel

Am Donnerstag, 16. Juni 2016, 16:49:42 schrieb Tomasz Figa:
> On Thu, Jun 16, 2016 at 9:31 AM, Chris Zhong <zyw@rock-chips.com> wrote:
> > Hi Heiko
> > 
> > On 06/16/2016 06:11 AM, Heiko Stuebner wrote:
> >> Am Montag, 13. Juni 2016, 17:39:46 schrieb Chris Zhong:
> >>> This patch adds a binding that describes the Rockchip USB Type-C PHY
> >>> for rk3399
> >>> 
> >>> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
> >>> 
> >>> ---
> >>> 
> >>> Changes in v2:
> >>> - add some registers description
> >>> 
> >>> Changes in v1:
> >>> - add extcon node description
> >>> - move the registers in phy driver
> >>> - remove the suffix of reset
> >>> 
> >>>   .../devicetree/bindings/phy/phy-rockchip-typec.txt | 77
> >>> 
> >>> ++++++++++++++++++++++ 1 file changed, 77 insertions(+)
> >>> 
> >>>   create mode 100644
> >>> 
> >>> Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> >>> 
> >>> diff --git
> >>> a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> >>> b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt new file
> >>> mode 100644
> >>> index 0000000..430920c
> >>> --- /dev/null
> >>> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> >>> @@ -0,0 +1,77 @@
> >>> +* ROCKCHIP type-c PHY
> >>> +---------------------
> >>> +
> >>> +Required properties:
> >>> + - compatible : should be "rockchip,rk3399-typec-phy0" or
> >>> +                        "rockchip,rk3399-typec-phy1"
> >>> + - reg: Address and length of the usb phy control register set
> >>> + - rockchip,grf : phandle to the syscon managing the "general
> >>> +   register files"
> >>> + - clocks : phandle + clock specifier for the phy clocks
> >>> + - clock-names : string, clock name, must be "tcpdcore", "tcpdphy_ref";
> >>> + - resets : a list of phandle + reset specifier pairs
> >>> + - reset-names : string reset name, must be:
> >>> +                "tcphy", "tcphy_pipe", "uphy_tcphy"
> >>> + - #phy-cells : Must be 0.  See ./phy-bindings.txt for details.
> >>> + - extcon : extcon specifier for the Power Delivery
> >>> +
> >>> +Note, there are 2 type-c phys for RK3399, and they are almost
> >>> identical,
> >>> except +these registers(description below), every register node contains
> >>> 3 sections: +offset, enable bit, write mask bit.
> >>> + - rockchip,typec_conn_dir : the register of type-c connector
> >>> direction,
> >>> +   for type-c phy0, it must be <0xe580 0 16>;
> >>> +   for type-c phy1, it must be <0xe58c 0 16>;
> >> 
> >> I think I said this already, but these register-lists would be much
> >> happier
> >> being defined inside the driver - see how Frank managed this on his
> >> usb2phy
> >> please.
> >> 
> >> Heiko
> > 
> > Yes, I move them into driver in v1 patch, but Rob Herring and Guenter
> > Roeck
> > recommend to put them back to dts.
> > These phy0 and phy1 are exactly the same, except these grf registers.
> 
> I think having the registers in dts isn't a bad idea. It might be
> actually even useful to bring up this PHY on new SoCs, if they happen
> to have the same PHY, just different plumbing.
> 
> But I suppose we don't need two separate compatible strings for phy0
> and phy1 anymore as Rob pointed, just one "rockchip,rk3399-typec-phy".

That is true - so I guess I'm also ok with going that way.

Though with the GRF-based interfaces being as volatile as they are between soc 
types, I just fear that this might not hold up on future socs.
For example the usb2phy is used on rk3036, rk3228, rk3366, rk3368, rk3399 and 
the GRF-side differs a lot - even with some features not even supported.

> After the above is fixed and underscores in property names are
> replaced with dashes, feel free to add my Reviewed-by.

I guess the clock and reset-names could also use dashes instead of 
underscores.

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399
  2016-06-13  9:39 ` [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399 Chris Zhong
@ 2016-06-16 12:48   ` Kever Yang
  2016-06-17 12:54   ` Kishon Vijay Abraham I
                     ` (2 subsequent siblings)
  3 siblings, 0 replies; 18+ messages in thread
From: Kever Yang @ 2016-06-16 12:48 UTC (permalink / raw)
  To: Chris Zhong, dianders, tfiga, heiko, yzq, groeck
  Cc: Kever Yang, linux-kernel, linux-rockchip, Kishon Vijay Abraham I,
	linux-arm-kernel

Hi Chris,

On 06/13/2016 05:39 PM, Chris Zhong wrote:
> Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
> Type-C PHY is designed to support the USB3 and DP applications. The
> PHY basically has two main components: USB3 and DisplyPort. USB3
> operates in SuperSpeed mode and the DP can operate at RBR, HBR and
> HBR2 data rates.
>
> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
> Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
>
> ---
>
> Changes in v2:
> - select RESET_CONTROLLER
> - alphabetic order
> - modify some spelling mistakes
> - make mode cleaner
> - use bool for enable/disable
> - check all of the return value
> - return a better err number
> - use more readx_poll_timeout()
> - clk_disable_unprepare(tcphy->clk_ref);
> - remove unuse functions, rockchip_typec_phy_power_on/off
> - remove unnecessary typecast from void *
> - use dts node to distinguish between phys.
>
> Changes in v1:
> - update the licence note
> - init core clock to 50MHz
> - use extcon API
> - remove unused global
> - add some comments for magic num
> - change usleep_range(1000, 2000) tousleep_range(1000, 1050)
> - remove __func__ from dev_err
> - return err number when get clk failed
> - remove ADDR_ADJ define
> - use devm_clk_get(&pdev->dev, "tcpdcore")
>
>   drivers/phy/Kconfig                    |   8 +
>   drivers/phy/Makefile                   |   1 +
>   drivers/phy/phy-rockchip-typec.c       | 952 +++++++++++++++++++++++++++++++++
>   include/linux/phy/phy-rockchip-typec.h |  20 +
>   4 files changed, 981 insertions(+)
>   create mode 100644 drivers/phy/phy-rockchip-typec.c
>   create mode 100644 include/linux/phy/phy-rockchip-typec.h
>
> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
> index 26566db..ec87b3a 100644
> --- a/drivers/phy/Kconfig
> +++ b/drivers/phy/Kconfig
> @@ -351,6 +351,14 @@ config PHY_ROCKCHIP_DP
>   	help
>   	  Enable this to support the Rockchip Display Port PHY.
>   
> +config PHY_ROCKCHIP_TYPEC
> +	tristate "Rockchip TYPEC PHY Driver"
> +	depends on ARCH_ROCKCHIP && OF
> +	select GENERIC_PHY
> +	select RESET_CONTROLLER
> +	help
> +	  Enable this to support the Rockchip USB TYPEC PHY.
> +
>   config PHY_ST_SPEAR1310_MIPHY
>   	tristate "ST SPEAR1310-MIPHY driver"
>   	select GENERIC_PHY
> diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
> index 24596a9..91fa413 100644
> --- a/drivers/phy/Makefile
> +++ b/drivers/phy/Makefile
> @@ -39,6 +39,7 @@ obj-$(CONFIG_PHY_QCOM_APQ8064_SATA)	+= phy-qcom-apq8064-sata.o
>   obj-$(CONFIG_PHY_ROCKCHIP_USB) += phy-rockchip-usb.o
>   obj-$(CONFIG_PHY_ROCKCHIP_EMMC) += phy-rockchip-emmc.o
>   obj-$(CONFIG_PHY_ROCKCHIP_DP)		+= phy-rockchip-dp.o
> +obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o
>   obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA)	+= phy-qcom-ipq806x-sata.o
>   obj-$(CONFIG_PHY_ST_SPEAR1310_MIPHY)	+= phy-spear1310-miphy.o
>   obj-$(CONFIG_PHY_ST_SPEAR1340_MIPHY)	+= phy-spear1340-miphy.o
> diff --git a/drivers/phy/phy-rockchip-typec.c b/drivers/phy/phy-rockchip-typec.c
> new file mode 100644
> index 0000000..230e074
> --- /dev/null
> +++ b/drivers/phy/phy-rockchip-typec.c
> @@ -0,0 +1,952 @@
> +/*
> + * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
> + * Author: Chris Zhong <zyw@rock-chips.com>
> + *         Kever Yang <kever.yang@rock-chips.com>
> + *
> + * This software is licensed under the terms of the GNU General Public
> + * License version 2, as published by the Free Software Foundation, and
> + * may be copied, distributed, and modified under those terms.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/clk-provider.h>
> +#include <linux/delay.h>
> +#include <linux/extcon.h>
> +#include <linux/io.h>
> +#include <linux/iopoll.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/of_platform.h>
> +#include <linux/platform_device.h>
> +#include <linux/regmap.h>
> +#include <linux/reset.h>
> +#include <linux/mfd/syscon.h>
> +#include <linux/phy/phy.h>
> +#include <linux/phy/phy-rockchip-typec.h>
> +
> +#define CMN_SSM_BANDGAP			(0x21 << 2)
> +#define CMN_SSM_BIAS			(0x22 << 2)
> +#define CMN_PLLSM0_PLLEN		(0x29 << 2)
> +#define CMN_PLLSM0_PLLPRE		(0x2a << 2)
> +#define CMN_PLLSM0_PLLVREF		(0x2b << 2)
> +#define CMN_PLLSM0_PLLLOCK		(0x2c << 2)
> +#define CMN_PLLSM1_PLLEN		(0x31 << 2)
> +#define CMN_PLLSM1_PLLPRE		(0x32 << 2)
> +#define CMN_PLLSM1_PLLVREF		(0x33 << 2)
> +#define CMN_PLLSM1_PLLLOCK		(0x34 << 2)
> +#define CMN_PLLSM1_USER_DEF_CTRL	(0x37 << 2)
> +#define CMN_ICAL_OVRD			(0xc1 << 2)
> +#define CMN_PLL0_VCOCAL_OVRD		(0x83 << 2)
> +#define CMN_PLL0_VCOCAL_INIT		(0x84 << 2)
> +#define CMN_PLL0_VCOCAL_ITER		(0x85 << 2)
> +#define CMN_PLL0_LOCK_REFCNT_START	(0x90 << 2)
> +#define CMN_PLL0_LOCK_PLLCNT_START	(0x92 << 2)
> +#define CMN_PLL0_LOCK_PLLCNT_THR	(0x93 << 2)
> +#define CMN_PLL0_INTDIV			(0x94 << 2)
> +#define CMN_PLL0_FRACDIV		(0x95 << 2)
> +#define CMN_PLL0_HIGH_THR		(0x96 << 2)
> +#define CMN_PLL0_DSM_DIAG		(0x97 << 2)
> +#define CMN_PLL0_SS_CTRL1		(0x98 << 2)
> +#define CMN_PLL0_SS_CTRL2		(0x99 << 2)
> +#define CMN_PLL1_VCOCAL_START		(0xa1 << 2)
> +#define CMN_PLL1_VCOCAL_OVRD		(0xa3 << 2)
> +#define CMN_PLL1_VCOCAL_INIT		(0xa4 << 2)
> +#define CMN_PLL1_VCOCAL_ITER		(0xa5 << 2)
> +#define CMN_PLL1_LOCK_REFCNT_START	(0xb0 << 2)
> +#define CMN_PLL1_LOCK_PLLCNT_START	(0xb2 << 2)
> +#define CMN_PLL1_LOCK_PLLCNT_THR	(0xb3 << 2)
> +#define CMN_PLL1_INTDIV			(0xb4 << 2)
> +#define CMN_PLL1_FRACDIV		(0xb5 << 2)
> +#define CMN_PLL1_HIGH_THR		(0xb6 << 2)
> +#define CMN_PLL1_DSM_DIAG		(0xb7 << 2)
> +#define CMN_PLL1_SS_CTRL1		(0xb8 << 2)
> +#define CMN_PLL1_SS_CTRL2		(0xb9 << 2)
> +#define CMN_RXCAL_OVRD			(0xd1 << 2)
> +#define CMN_TXPUCAL_CTRL		(0xe0 << 2)
> +#define CMN_TXPUCAL_OVRD		(0xe1 << 2)
> +#define CMN_TXPDCAL_OVRD		(0xf1 << 2)
> +#define CMN_DIAG_PLL0_FBH_OVRD		(0x1c0 << 2)
> +#define CMN_DIAG_PLL0_FBL_OVRD		(0x1c1 << 2)
> +#define CMN_DIAG_PLL0_OVRD		(0x1c2 << 2)
> +#define CMN_DIAG_PLL0_V2I_TUNE		(0x1c5 << 2)
> +#define CMN_DIAG_PLL0_CP_TUNE		(0x1c6 << 2)
> +#define CMN_DIAG_PLL0_LF_PROG		(0x1c7 << 2)
> +#define CMN_DIAG_PLL1_FBH_OVRD		(0x1d0 << 2)
> +#define CMN_DIAG_PLL1_FBL_OVRD		(0x1d1 << 2)
> +#define CMN_DIAG_PLL1_OVRD		(0x1d2 << 2)
> +#define CMN_DIAG_PLL1_V2I_TUNE		(0x1d5 << 2)
> +#define CMN_DIAG_PLL1_CP_TUNE		(0x1d6 << 2)
> +#define CMN_DIAG_PLL1_LF_PROG		(0x1d7 << 2)
> +#define CMN_DIAG_PLL1_PTATIS_TUNE1	(0x1d8 << 2)
> +#define CMN_DIAG_PLL1_PTATIS_TUNE2	(0x1d9 << 2)
> +#define CMN_DIAG_PLL1_INCLK_CTRL	(0x1da << 2)
> +#define CMN_DIAG_HSCLK_SEL		(0x1e0 << 2)
> +
> +#define XCVR_PSM_RCTRL(n)		((0x4001 | (n << 9)) << 2)
> +#define XCVR_PSM_CAL_TMR(n)		((0x4002 | (n << 9)) << 2)
> +#define XCVR_PSM_A0IN_TMR(n)		((0x4003 | (n << 9)) << 2)
> +#define TX_TXCC_CAL_SCLR_MULT(n)	((0x4047 | (n << 9)) << 2)
> +#define TX_TXCC_CPOST_MULT_00(n)	((0x404c | (n << 9)) << 2)
> +#define TX_TXCC_CPOST_MULT_01(n)	((0x404d | (n << 9)) << 2)
> +#define TX_TXCC_CPOST_MULT_10(n)	((0x404e | (n << 9)) << 2)
> +#define TX_TXCC_CPOST_MULT_11(n)	((0x404f | (n << 9)) << 2)
> +#define TX_TXCC_MGNFS_MULT_000(n)	((0x4050 | (n << 9)) << 2)
> +#define TX_TXCC_MGNFS_MULT_001(n)	((0x4051 | (n << 9)) << 2)
> +#define TX_TXCC_MGNFS_MULT_010(n)	((0x4052 | (n << 9)) << 2)
> +#define TX_TXCC_MGNFS_MULT_011(n)	((0x4053 | (n << 9)) << 2)
> +#define TX_TXCC_MGNFS_MULT_100(n)	((0x4054 | (n << 9)) << 2)
> +#define TX_TXCC_MGNFS_MULT_101(n)	((0x4055 | (n << 9)) << 2)
> +#define TX_TXCC_MGNFS_MULT_110(n)	((0x4056 | (n << 9)) << 2)
> +#define TX_TXCC_MGNFS_MULT_111(n)	((0x4057 | (n << 9)) << 2)
> +#define XCVR_DIAG_PLLDRC_CTRL(n)	((0x40e0 | (n << 9)) << 2)
> +#define XCVR_DIAG_BIDI_CTRL(n)		((0x40e8 | (n << 9)) << 2)
> +#define XCVR_DIAG_LANE_FCM_EN_MGN(n)	((0x40f2 | (n << 9)) << 2)
> +#define TX_PSC_A0(n)			((0x4100 | (n << 9)) << 2)
> +#define TX_PSC_A1(n)			((0x4101 | (n << 9)) << 2)
> +#define TX_PSC_A2(n)			((0x4102 | (n << 9)) << 2)
> +#define TX_PSC_A3(n)			((0x4103 | (n << 9)) << 2)
> +#define TX_RCVDET_CTRL(n)		((0x4120 | (n << 9)) << 2)
> +#define TX_RCVDET_EN_TMR(n)		((0x4122 | (n << 9)) << 2)
> +#define TX_RCVDET_ST_TMR(n)		((0x4123 | (n << 9)) << 2)
> +#define TX_DIAG_TX_DRV(n)		((0x41e1 | (n << 9)) << 2)
> +#define TX_DIAG_BGREF_PREDRV_DELAY	(0x41e7 << 2)
> +#define TX_ANA_CTRL_REG_1		(0x5020 << 2)
> +#define TX_ANA_CTRL_REG_2		(0x5021 << 2)
> +#define TXDA_COEFF_CALC_CTRL		(0x5022 << 2)
> +#define TX_DIG_CTRL_REG_2		(0x5024 << 2)
> +#define TXDA_CYA_AUXDA_CYA		(0x5025 << 2)
> +#define TX_ANA_CTRL_REG_3		(0x5026 << 2)
> +#define TX_ANA_CTRL_REG_4		(0x5027 << 2)
> +#define TX_ANA_CTRL_REG_5		(0x5029 << 2)
> +
> +#define RX_PSC_A0(n)			((0x8000 | (n << 9)) << 2)
> +#define RX_PSC_A1(n)			((0x8001 | (n << 9)) << 2)
> +#define RX_PSC_A2(n)			((0x8002 | (n << 9)) << 2)
> +#define RX_PSC_A3(n)			((0x8003 | (n << 9)) << 2)
> +#define RX_PSC_CAL(n)			((0x8006 | (n << 9)) << 2)
> +#define RX_PSC_RDY(n)			((0x8007 | (n << 9)) << 2)
> +#define RX_IQPI_ILL_CAL_OVRD		(0x8023 << 2)
> +#define RX_EPI_ILL_CAL_OVRD		(0x8033 << 2)
> +#define RX_SDCAL0_OVRD			(0x8041 << 2)
> +#define RX_SDCAL1_OVRD			(0x8049 << 2)
> +#define RX_SLC_INIT			(0x806d << 2)
> +#define RX_SLC_RUN			(0x806e << 2)
> +#define RX_CDRLF_CNFG2			(0x8081 << 2)
> +#define RX_SIGDET_HL_FILT_TMR(n)	((0x8090 | (n << 9)) << 2)
> +#define RX_SLC_IOP0_OVRD		(0x8101 << 2)
> +#define RX_SLC_IOP1_OVRD		(0x8105 << 2)
> +#define RX_SLC_QOP0_OVRD		(0x8109 << 2)
> +#define RX_SLC_QOP1_OVRD		(0x810d << 2)
> +#define RX_SLC_EOP0_OVRD		(0x8111 << 2)
> +#define RX_SLC_EOP1_OVRD		(0x8115 << 2)
> +#define RX_SLC_ION0_OVRD		(0x8119 << 2)
> +#define RX_SLC_ION1_OVRD		(0x811d << 2)
> +#define RX_SLC_QON0_OVRD		(0x8121 << 2)
> +#define RX_SLC_QON1_OVRD		(0x8125 << 2)
> +#define RX_SLC_EON0_OVRD		(0x8129 << 2)
> +#define RX_SLC_EON1_OVRD		(0x812d << 2)
> +#define RX_SLC_IEP0_OVRD		(0x8131 << 2)
> +#define RX_SLC_IEP1_OVRD		(0x8135 << 2)
> +#define RX_SLC_QEP0_OVRD		(0x8139 << 2)
> +#define RX_SLC_QEP1_OVRD		(0x813d << 2)
> +#define RX_SLC_EEP0_OVRD		(0x8141 << 2)
> +#define RX_SLC_EEP1_OVRD		(0x8145 << 2)
> +#define RX_SLC_IEN0_OVRD		(0x8149 << 2)
> +#define RX_SLC_IEN1_OVRD		(0x814d << 2)
> +#define RX_SLC_QEN0_OVRD		(0x8151 << 2)
> +#define RX_SLC_QEN1_OVRD		(0x8155 << 2)
> +#define RX_SLC_EEN0_OVRD		(0x8159 << 2)
> +#define RX_SLC_EEN1_OVRD		(0x815d << 2)
> +#define RX_DIAG_SIGDET_TUNE(n)		((0x81dc | (n << 9)) << 2)
> +#define RX_DIAG_SC2C_DELAY		(0x81e1 << 2)
> +
> +#define PMA_LANE_CFG			(0xc000 << 2)
> +#define PIPE_CMN_CTRL1			(0xc001 << 2)
> +#define PIPE_CMN_CTRL2			(0xc002 << 2)
> +#define PIPE_COM_LOCK_CFG1		(0xc003 << 2)
> +#define PIPE_COM_LOCK_CFG2		(0xc004 << 2)
> +#define PIPE_RCV_DET_INH		(0xc005 << 2)
> +#define DP_MODE_CTL			(0xc008 << 2)
> +#define DP_CLK_CTL			(0xc009 << 2)
> +#define STS				(0xc00F << 2)
> +#define PHY_ISO_CMN_CTRL		(0xc010 << 2)
> +#define PHY_DP_TX_CTL			(0xc408 << 2)
> +#define PMA_CMN_CTRL1			(0xc800 << 2)
> +#define PHY_PMA_ISO_CMN_CTRL		(0xc810 << 2)
> +#define PHY_ISOLATION_CTRL		(0xc81f << 2)
> +#define PHY_PMA_ISO_XCVR_CTRL(n)	((0xcc11 | (n << 6)) << 2)
> +#define PHY_PMA_ISO_LINK_MODE(n)	((0xcc12 | (n << 6)) << 2)
> +#define PHY_PMA_ISO_PWRST_CTRL(n)	((0xcc13 | (n << 6)) << 2)
> +#define PHY_PMA_ISO_TX_DATA_LO(n)	((0xcc14 | (n << 6)) << 2)
> +#define PHY_PMA_ISO_TX_DATA_HI(n)	((0xcc15 | (n << 6)) << 2)
> +#define PHY_PMA_ISO_RX_DATA_LO(n)	((0xcc16 | (n << 6)) << 2)
> +#define PHY_PMA_ISO_RX_DATA_HI(n)	((0xcc17 | (n << 6)) << 2)
> +#define TX_BIST_CTRL(n)			((0x4140 | (n << 9)) << 2)
> +#define TX_BIST_UDDWR(n)		((0x4141 | (n << 9)) << 2)
> +
> +#define CMN_READY			BIT(0)
> +
> +#define DP_PLL_CLOCK_ENABLE		BIT(2)
> +#define DP_PLL_ENABLE			BIT(0)
> +#define DP_PLL_DATA_RATE_RBR		((2 << 12) | (4 << 8))
> +#define DP_PLL_DATA_RATE_HBR		((2 << 12) | (4 << 8))
> +#define DP_PLL_DATA_RATE_HBR2		((1 << 12) | (2 << 8))
> +
> +#define GRF_SOC_CON26			0x6268
> +#define UPHY_DP_SEL			BIT(3)
> +#define UPHY_DP_SEL_MASK		BIT(19)
> +#define DPTX_HPD_SEL			(3 << 12)
> +#define DPTX_HPD_DEL			(2 << 12)
> +#define DPTX_HPD_SEL_MASK		(3 << 28)
> +
> +#define PHY_MODE_SET_TIMEOUT		1000000
> +
> +#define	MODE_DISCONNECT			0
> +#define	MODE_UFP_USB			BIT(0)
> +#define	MODE_DFP_USB			BIT(1)
> +#define	MODE_DFP_DP			BIT(2)
> +
> +struct usb3phy_reg {
> +	u32	offset;
> +	u32	enable_bit;
> +	u32	write_enable;
> +};
> +
> +struct rockchip_usb3phy_port_cfg {
> +	struct usb3phy_reg	typec_conn_dir;
> +	struct usb3phy_reg	usb3tousb2_en;
> +	struct usb3phy_reg	external_psm;
> +	struct usb3phy_reg	pipe_status;
> +	struct usb3phy_reg	uphy_dp_sel;
> +};
> +
> +struct rockchip_typec_phy {
> +	struct device		*dev;
> +	void __iomem		*base;
> +	struct extcon_dev	*extcon;
> +	struct phy		*phy;
> +	struct regmap		*grf_regs;
> +	struct clk		*clk_core;
> +	struct clk		*clk_ref;
> +	struct reset_control	*phy_rst;
> +	struct reset_control	*pipe_rst;
> +	struct reset_control	*uphy_rst;
> +	struct rockchip_usb3phy_port_cfg	port_cfgs;
> +
> +	/* to receive notifier from PD */
> +	struct notifier_block	event_nb;
> +	struct delayed_work	event_wq;
> +
> +	bool flip;
> +	bool hpd_status;
> +	int mode;
> +	int map;
> +};
> +
> +struct phy_reg {
> +	int value;
> +	int addr;
> +};
> +
> +struct phy_reg usb_pll_cfg[] = {
> +	{0xf0,		CMN_PLL0_VCOCAL_INIT},
> +	{0x18,		CMN_PLL0_VCOCAL_ITER},
> +	{0xd0,		CMN_PLL0_INTDIV},
> +	{0x4a4a,	CMN_PLL0_FRACDIV},
> +	{0x34,		CMN_PLL0_HIGH_THR},
> +	{0x1ee,		CMN_PLL0_SS_CTRL1},
> +	{0x7f03,	CMN_PLL0_SS_CTRL2},
> +	{0x20,		CMN_PLL0_DSM_DIAG},
> +	{0,		CMN_DIAG_PLL0_OVRD},
> +	{0,		CMN_DIAG_PLL0_FBH_OVRD},
> +	{0,		CMN_DIAG_PLL0_FBL_OVRD},
> +	{0x7,		CMN_DIAG_PLL0_V2I_TUNE},
> +	{0x45,		CMN_DIAG_PLL0_CP_TUNE},
> +	{0x8,		CMN_DIAG_PLL0_LF_PROG},
> +};
> +
> +struct phy_reg dp_pll_cfg[] = {
> +	{0xf0,		CMN_PLL1_VCOCAL_INIT},
> +	{0x18,		CMN_PLL1_VCOCAL_ITER},
> +	{0x30b9,	CMN_PLL1_VCOCAL_START},
> +	{0x21c,		CMN_PLL1_INTDIV},
> +	{0,		CMN_PLL1_FRACDIV},
> +	{0x5,		CMN_PLL1_HIGH_THR},
> +	{0x35,		CMN_PLL1_SS_CTRL1},
> +	{0x7f1e,	CMN_PLL1_SS_CTRL2},
> +	{0x20,		CMN_PLL1_DSM_DIAG},
> +	{0,		CMN_PLLSM1_USER_DEF_CTRL},
> +	{0,		CMN_DIAG_PLL1_OVRD},
> +	{0,		CMN_DIAG_PLL1_FBH_OVRD},
> +	{0,		CMN_DIAG_PLL1_FBL_OVRD},
> +	{0x6,		CMN_DIAG_PLL1_V2I_TUNE},
> +	{0x45,		CMN_DIAG_PLL1_CP_TUNE},
> +	{0x8,		CMN_DIAG_PLL1_LF_PROG},
> +	{0x100,		CMN_DIAG_PLL1_PTATIS_TUNE1},
> +	{0x7,		CMN_DIAG_PLL1_PTATIS_TUNE2},
> +	{0x4,		CMN_DIAG_PLL1_INCLK_CTRL},
> +};
> +
> +static void tcphy_cfg_24m(struct rockchip_typec_phy *tcphy,
> +			  u32 num_lanes)
> +{
> +	u32 i;
> +
> +	/*
> +	 * cmn_ref_clk_sel = 3, select the 24Mhz for clk parent
> +	 * cmn_psm_clk_dig_div = 2, set the clk division to 2
> +	 */
> +	writel(0x830, tcphy->base + PMA_CMN_CTRL1);
> +	for (i = 0; i < num_lanes; i++) {
> +		/*
> +		 * The following PHY configuration assumes a 24 MHz reference
> +		 * clock.
> +		 */
> +		writel(0x90, tcphy->base + XCVR_DIAG_LANE_FCM_EN_MGN(i));
> +		writel(0x960, tcphy->base + TX_RCVDET_EN_TMR(i));
> +		writel(0x30, tcphy->base + TX_RCVDET_ST_TMR(i));
> +	}
> +}
> +
> +static void tcphy_cfg_usb_pll(struct rockchip_typec_phy *tcphy)
> +{
> +	u32 rdata;
> +	u32 i;
> +
> +	/*
> +	 * Selects which PLL clock will be driven on the analog high speed
> +	 * clock 0: PLL 0 div 1.
> +	 */
> +	rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
> +	writel(rdata & 0xfffc, tcphy->base + CMN_DIAG_HSCLK_SEL);
> +
> +	/* load the configuration of PLL0 */
> +	for (i = 0; i < ARRAY_SIZE(usb_pll_cfg); i++)
> +		writel(usb_pll_cfg[i].value, tcphy->base + usb_pll_cfg[i].addr);
> +}
> +
> +static void tcphy_cfg_dp_pll(struct rockchip_typec_phy *tcphy)
> +{
> +	u32 rdata;
> +	u32 i;
> +
> +	/* set the default mode to RBR */
> +	writel(DP_PLL_CLOCK_ENABLE | DP_PLL_ENABLE | DP_PLL_DATA_RATE_RBR,
> +	       tcphy->base + DP_CLK_CTL);
> +
> +	/*
> +	 * Selects which PLL clock will be driven on the analog high speed
> +	 * clock 1: PLL 1 div 2.
> +	 */
> +	rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
> +	rdata = (rdata & 0xffcf) | 0x30;
> +	writel(rdata, tcphy->base + CMN_DIAG_HSCLK_SEL);
> +
> +	/* load the configuration of PLL1 */
> +	for (i = 0; i < ARRAY_SIZE(dp_pll_cfg); i++)
> +		writel(dp_pll_cfg[i].value, tcphy->base + dp_pll_cfg[i].addr);
> +}
> +
> +static void tcphy_tx_usb_cfg_lane(struct rockchip_typec_phy *tcphy,
> +				  u32 lane)
> +{
> +	writel(0x7799, tcphy->base + TX_PSC_A0(lane));
> +	writel(0x7798, tcphy->base + TX_PSC_A1(lane));
> +	writel(0x5098, tcphy->base + TX_PSC_A2(lane));
> +	writel(0x5098, tcphy->base + TX_PSC_A3(lane));
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_000(lane));
> +	writel(0xbf, tcphy->base + XCVR_DIAG_BIDI_CTRL(lane));
> +}
> +
> +static void tcphy_rx_usb_cfg_lane(struct rockchip_typec_phy *tcphy,
> +				  u32 lane)
> +{
> +	writel(0xa6fd, tcphy->base + RX_PSC_A0(lane));
> +	writel(0xa6fd, tcphy->base + RX_PSC_A1(lane));
> +	writel(0xa410, tcphy->base + RX_PSC_A2(lane));
> +	writel(0x2410, tcphy->base + RX_PSC_A3(lane));
> +	writel(0x23ff, tcphy->base + RX_PSC_CAL(lane));
> +	writel(0x13, tcphy->base + RX_SIGDET_HL_FILT_TMR(lane));
> +	writel(0x1004, tcphy->base + RX_DIAG_SIGDET_TUNE(lane));
> +	writel(0x2010, tcphy->base + RX_PSC_RDY(lane));
> +	writel(0xfb, tcphy->base + XCVR_DIAG_BIDI_CTRL(lane));
> +}
> +
> +static void tcphy_dp_cfg_lane(struct rockchip_typec_phy *tcphy,
> +			      u32 lane)
> +{
> +	u32 rdata;
> +
> +	writel(0xbefc, tcphy->base + XCVR_PSM_RCTRL(lane));
> +	writel(0x6799, tcphy->base + TX_PSC_A0(lane));
> +	writel(0x6798, tcphy->base + TX_PSC_A1(lane));
> +	writel(0x98, tcphy->base + TX_PSC_A2(lane));
> +	writel(0x98, tcphy->base + TX_PSC_A3(lane));
> +
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_000(lane));
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_001(lane));
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_010(lane));
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_011(lane));
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_100(lane));
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_101(lane));
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_110(lane));
> +	writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_111(lane));
> +	writel(0, tcphy->base + TX_TXCC_CPOST_MULT_10(lane));
> +	writel(0, tcphy->base + TX_TXCC_CPOST_MULT_01(lane));
> +	writel(0, tcphy->base + TX_TXCC_CPOST_MULT_00(lane));
> +	writel(0, tcphy->base + TX_TXCC_CPOST_MULT_11(lane));
> +
> +	writel(0x128, tcphy->base + TX_TXCC_CAL_SCLR_MULT(lane));
> +	writel(0x700, tcphy->base + TX_DIAG_TX_DRV(lane));
> +
> +	rdata = readl(tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
> +	rdata = (rdata & 0x8fff) | 0x6000;
> +	writel(rdata, tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
> +}
> +
> +static void tcphy_cfg_pin_assign(struct rockchip_typec_phy *tcphy)
> +{
> +	switch (tcphy->map) {
> +	case PIN_MAP_A:
> +		writel(0x19d5, tcphy->base + PMA_LANE_CFG);
> +		break;
> +	case PIN_MAP_B:
> +		writel(0x1500, tcphy->base + PMA_LANE_CFG);
> +		break;
> +	case PIN_MAP_C:
> +	case PIN_MAP_E:
> +		writel(0x51d9, tcphy->base + PMA_LANE_CFG);
> +		break;
> +	case PIN_MAP_D:
> +	case PIN_MAP_F:
> +		writel(0x5100, tcphy->base + PMA_LANE_CFG);
> +		break;
> +	};
> +}
> +
> +static inline int property_enable(struct rockchip_typec_phy *tcphy,
> +				  const struct usb3phy_reg *reg, bool en)
> +{
> +	int mask = 1 << reg->write_enable;
> +	int val = en << reg->enable_bit;
> +
> +	return regmap_write(tcphy->grf_regs, reg->offset, val | mask);
> +}
> +
> +static void tcphy_lanes_config(struct rockchip_typec_phy *tcphy)
> +{
> +	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
> +	u32 i;
> +
> +	property_enable(tcphy, &cfg->typec_conn_dir, tcphy->flip);
> +
> +	tcphy_cfg_24m(tcphy, 0x4);
> +
> +	switch (tcphy->mode) {
> +	case MODE_UFP_USB:
> +	case MODE_DFP_USB:
> +		tcphy_cfg_usb_pll(tcphy);
> +		if (tcphy->flip) {
> +			tcphy_tx_usb_cfg_lane(tcphy, 3);
> +			tcphy_rx_usb_cfg_lane(tcphy, 2);
> +		} else {
> +			tcphy_tx_usb_cfg_lane(tcphy, 0);
> +			tcphy_rx_usb_cfg_lane(tcphy, 1);
> +		}
> +		break;
> +	case MODE_DFP_DP:
> +		tcphy_cfg_dp_pll(tcphy);
> +		for (i = 0; i < 4; i++)
> +			tcphy_dp_cfg_lane(tcphy, i);
> +		break;
> +	case MODE_DFP_USB | MODE_DFP_DP:
> +		tcphy_cfg_usb_pll(tcphy);
> +		tcphy_cfg_dp_pll(tcphy);
> +		if (tcphy->flip) {
> +			tcphy_tx_usb_cfg_lane(tcphy, 3);
> +			tcphy_rx_usb_cfg_lane(tcphy, 2);
> +			tcphy_dp_cfg_lane(tcphy, 0);
> +			tcphy_dp_cfg_lane(tcphy, 1);
> +		} else {
> +			tcphy_tx_usb_cfg_lane(tcphy, 0);
> +			tcphy_rx_usb_cfg_lane(tcphy, 1);
> +			tcphy_dp_cfg_lane(tcphy, 2);
> +			tcphy_dp_cfg_lane(tcphy, 3);
> +		}
> +		break;
> +	}
> +}
> +
> +static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
> +{
> +	int rdata, rdata2, val;
> +
> +	/* disable txda_cal_latch_en for rewrite the calibration values */
> +	rdata = readl(tcphy->base + TX_ANA_CTRL_REG_1);
> +	val = rdata & 0xdfff;
> +	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
> +
> +	/*
> +	 * read a resistor calibration code from CMN_TXPUCAL_CTRL[6:0] and
> +	 * write it to TX_DIG_CTRL_REG_2[6:0], and delay 1ms to make sure it
> +	 * works.
> +	 */
> +	rdata = readl(tcphy->base + TX_DIG_CTRL_REG_2);
> +	rdata = rdata & 0xffc0;
> +
> +	rdata2 = readl(tcphy->base + CMN_TXPUCAL_CTRL);
> +	rdata2 = rdata2 & 0x3f;
> +
> +	val = rdata | rdata2;
> +	writel(val, tcphy->base + TX_DIG_CTRL_REG_2);
> +	usleep_range(1000, 1050);
> +
> +	/*
> +	 * Enable signal for latch that sample and holds calibration values.
> +	 * Activate this signal for 1 clock cycle to sample new calibration
> +	 * values.
> +	 */
> +	rdata = readl(tcphy->base + TX_ANA_CTRL_REG_1);
> +	val = rdata | 0x2000;
> +	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
> +	usleep_range(150, 200);
> +
> +	/* set TX Voltage Level and TX Deemphasis to 0 */
> +	writel(0, tcphy->base + PHY_DP_TX_CTL);
> +	/* re-enable decap */
> +	writel(0x100, tcphy->base + TX_ANA_CTRL_REG_2);
> +	writel(0x300, tcphy->base + TX_ANA_CTRL_REG_2);
> +	writel(0x2008, tcphy->base + TX_ANA_CTRL_REG_1);
> +	writel(0x2018, tcphy->base + TX_ANA_CTRL_REG_1);
> +
> +	writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
> +
> +	/*
> +	 * Programs txda_drv_ldo_prog[15:0], Sets driver LDO
> +	 * voltage 16'h1001 for DP-AUX-TX and RX
> +	 */
> +	writel(0x1001, tcphy->base + TX_ANA_CTRL_REG_4);
> +
> +	/* re-enables Bandgap reference for LDO */
> +	writel(0x2098, tcphy->base + TX_ANA_CTRL_REG_1);
> +	writel(0x2198, tcphy->base + TX_ANA_CTRL_REG_1);
> +
> +	/*
> +	 * re-enables the transmitter pre-driver, driver data selection MUX,
> +	 * and receiver detect circuits.
> +	 */
> +	writel(0x301, tcphy->base + TX_ANA_CTRL_REG_2);
> +	writel(0x303, tcphy->base + TX_ANA_CTRL_REG_2);
> +
> +	/*
> +	 * Controls auxda_polarity, which selects the polarity of the xcvr
> +	 * 1'b1 : Reverses the polarity (If TYPEC, Pulls ups aux_p and pull
> +	 * down aux_m)
> +	 * 1'b0 : Normal polarity (if TYPE_C, pulls up aux_m and pulls down
> +	 * aux_p)
> +	 */
> +	if (tcphy->flip)
> +		writel(0xa078, tcphy->base + TX_ANA_CTRL_REG_1);
> +	else
> +		writel(0xb078, tcphy->base + TX_ANA_CTRL_REG_1);
> +
> +	writel(0, tcphy->base + TX_ANA_CTRL_REG_3);
> +	writel(0, tcphy->base + TX_ANA_CTRL_REG_4);
> +	writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
> +
> +	/*
> +	 * Controls low_power_swing_en, set the voltage swing of the driver
> +	 * to 400mv. The values	below are peak to peak (differential) values.
> +	 */
> +	writel(4, tcphy->base + TXDA_COEFF_CALC_CTRL);
> +	writel(0, tcphy->base + TXDA_CYA_AUXDA_CYA);
> +
> +	/* Controls tx_high_z_tm_en */
> +	val = readl(tcphy->base + TX_DIG_CTRL_REG_2);
> +	val |= BIT(15);
> +	writel(val, tcphy->base + TX_DIG_CTRL_REG_2);
> +}
> +
> +static void tcphy_usb3_init(struct rockchip_typec_phy *tcphy)
> +{
> +	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
> +	const struct usb3phy_reg *reg = &cfg->pipe_status;
> +	int timeout;
> +	unsigned int val;
> +
> +	/* wait TCPHY for pipe ready */
> +	for (timeout = 0; timeout < 1000; timeout++) {
> +		regmap_read(tcphy->grf_regs, reg->offset, &val);
> +		if (!(val & BIT(reg->enable_bit)))
> +			return;
> +		usleep_range(10, 20);
> +	}
> +
> +	dev_err(tcphy->dev, "wait pipe ready timeout!\n");
> +}
> +
> +static int tcphy_dp_init(struct rockchip_typec_phy *tcphy)
> +{
> +	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
> +	int ret, val;
> +
> +	property_enable(tcphy, &cfg->uphy_dp_sel, 1);
> +
> +	ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
> +				 val, val & BIT(6), 1000, PHY_MODE_SET_TIMEOUT);
> +	if (ret < 0) {
> +		dev_err(tcphy->dev, "failed to wait TCPHY for DP ready\n");
> +		return ret;
> +	}
> +
> +	tcphy_dp_aux_calibration(tcphy);
> +
> +	if (tcphy->mode & MODE_DFP_USB)
> +		writel(0xc101, tcphy->base + DP_MODE_CTL);
> +	else
> +		writel(0x0101, tcphy->base + DP_MODE_CTL);
> +
> +	ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
> +				 val, val & BIT(4), 1000, PHY_MODE_SET_TIMEOUT);
> +	if (ret < 0) {
> +		dev_err(tcphy->dev, "failed to wait TCPHY enter A0\n");
> +		return ret;
> +	}
> +
> +	return 0;
> +}
> +
> +static int tcphy_phy_init(struct rockchip_typec_phy *tcphy)
> +{
> +	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
> +	int ret, val;
> +
> +	ret = clk_prepare_enable(tcphy->clk_core);
> +	if (ret) {
> +		dev_err(tcphy->dev, "Failed to prepare_enable core clock\n");
> +		return ret;
> +	}
> +
> +	ret = clk_set_rate(tcphy->clk_core, 50000000);
> +	if (ret) {
> +		dev_err(tcphy->dev, "set type-c phy core clk rate failed\n");
> +		goto clk_ref_failed;
> +	}
> +
> +	ret = clk_prepare_enable(tcphy->clk_ref);
> +	if (ret) {
> +		dev_err(tcphy->dev, "Failed to prepare_enable ref clock\n");
> +		goto clk_ref_failed;
> +	}
> +
> +	reset_control_assert(tcphy->uphy_rst);
> +	reset_control_assert(tcphy->phy_rst);
> +	reset_control_assert(tcphy->pipe_rst);
> +
> +	/* select external psm clock */
> +	property_enable(tcphy, &cfg->external_psm, 1);
> +	property_enable(tcphy, &cfg->usb3tousb2_en, 0);
> +
> +	reset_control_deassert(tcphy->uphy_rst);
> +
> +	tcphy_lanes_config(tcphy);
> +
> +	tcphy_cfg_pin_assign(tcphy);
> +
> +	if (tcphy->mode & MODE_DFP_DP) {
> +		if (tcphy->mode & MODE_DFP_USB)
> +			writel(0xc104, tcphy->base + DP_MODE_CTL);
> +		else
> +			writel(0x0104, tcphy->base + DP_MODE_CTL);
> +	}
> +
> +	reset_control_deassert(tcphy->phy_rst);
> +
> +	ret = readx_poll_timeout(readl, tcphy->base + PMA_CMN_CTRL1,
> +				 val, val & CMN_READY, 10,
> +				 PHY_MODE_SET_TIMEOUT);
> +	if (ret < 0) {
> +		dev_err(tcphy->dev, "wait pma ready timeout\n");
> +		goto timeout_failed;
> +	}
> +
> +	reset_control_deassert(tcphy->pipe_rst);
> +
> +	return 0;
> +
> +timeout_failed:
> +	clk_disable_unprepare(tcphy->clk_ref);
> +clk_ref_failed:
> +	clk_disable_unprepare(tcphy->clk_core);
> +	return ret;
> +}
> +
> +static void tcphy_phy_deinit(struct rockchip_typec_phy *tcphy)
> +{
> +	clk_disable_unprepare(tcphy->clk_core);
> +	clk_disable_unprepare(tcphy->clk_ref);
> +}
> +
> +static const struct phy_ops rockchip_tcphy_ops = {
> +	.owner          = THIS_MODULE,
> +};
> +
> +static int tcphy_pd_event(struct notifier_block *nb,
> +			  unsigned long event, void *priv)
> +{
> +	struct rockchip_typec_phy *tcphy;
> +	struct extcon_dev *edev = priv;
> +	int value = edev->state;
> +	int mode;
> +	u8 is_plugged, dfp;
> +
> +	tcphy = container_of(nb, struct rockchip_typec_phy, event_nb);
> +
> +	is_plugged = GET_PLUGGED(value);
> +	tcphy->flip = GET_FLIP(value);
> +	dfp = GET_DFP(value);
> +	tcphy->map = GET_PIN_MAP(value);
> +
> +	if (is_plugged) {
> +		if (!dfp)
> +			mode = MODE_UFP_USB;
> +		else if (tcphy->map & (PIN_MAP_B | PIN_MAP_D | PIN_MAP_F))
> +			mode = MODE_DFP_USB | MODE_DFP_DP;
> +		else if (tcphy->map & (PIN_MAP_A | PIN_MAP_C | PIN_MAP_E))
> +			mode = MODE_DFP_DP;
> +		else
> +			mode = MODE_DFP_USB;
> +	} else {
> +		mode = MODE_DISCONNECT;
> +	}
> +
> +	if (tcphy->mode != mode) {
> +		tcphy->mode = mode;
> +		schedule_delayed_work_on(0, &tcphy->event_wq, 0);
> +	}
> +
> +	return 0;
> +}
> +
> +static void tcphy_event_wq(struct work_struct *work)
> +{
> +	struct rockchip_typec_phy *tcphy;
> +	int ret;
> +
> +	tcphy = container_of(work, struct rockchip_typec_phy, event_wq.work);
> +
> +	if (tcphy->mode == MODE_DISCONNECT) {
> +		tcphy_phy_deinit(tcphy);
> +		/* remove hpd sign for DP */
> +		if (tcphy->hpd_status) {
> +			regmap_write(tcphy->grf_regs, GRF_SOC_CON26,
> +				     DPTX_HPD_SEL_MASK | DPTX_HPD_DEL);
> +			tcphy->hpd_status = 0;
> +		}
> +	} else {
> +		ret = tcphy_phy_init(tcphy);
> +		if (ret)
> +			return;
> +
> +		if (tcphy->mode & (MODE_UFP_USB | MODE_DFP_USB))
> +			tcphy_usb3_init(tcphy);
> +
> +		if (tcphy->mode & MODE_DFP_DP) {
> +			ret = tcphy_dp_init(tcphy);
> +
> +			/* set hpd sign for DP, if DP phy is ready */
> +			if (!ret) {
> +				regmap_write(tcphy->grf_regs, GRF_SOC_CON26,
> +					     DPTX_HPD_SEL_MASK | DPTX_HPD_SEL);
> +				tcphy->hpd_status = 1;
> +			}
> +		}
> +	}
> +}
> +
> +static int tcphy_get_param(struct device *dev,
> +			   struct usb3phy_reg *reg,
> +			   const char *name)
> +{
> +	int ret, buffer[3];
> +
> +	ret = of_property_read_u32_array(dev->of_node, name, buffer, 3);
> +	if (ret) {
> +		dev_err(dev, "Can not parse %s\n", name);
> +		return ret;
> +	}
> +
> +	reg->offset = buffer[0];
> +	reg->enable_bit = buffer[1];
> +	reg->write_enable = buffer[2];
> +	return 0;
> +}
> +
> +static int tcphy_parse_dt(struct rockchip_typec_phy *tcphy,
> +			  struct device *dev)
> +{
> +	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
> +	int ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->typec_conn_dir,
> +			      "rockchip,typec_conn_dir");
> +	if (ret)
> +		return ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->usb3tousb2_en,
> +			      "rockchip,usb3tousb2_en");
> +	if (ret)
> +		return ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->external_psm,
> +			      "rockchip,external_psm");
> +	if (ret)
> +		return ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->pipe_status,
> +			      "rockchip,pipe_status");
> +	if (ret)
> +		return ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->uphy_dp_sel,
> +			      "rockchip,uphy_dp_sel");
> +	if (ret)
> +		return ret;
> +
> +	tcphy->grf_regs = syscon_regmap_lookup_by_phandle(dev->of_node,
> +							  "rockchip,grf");
> +	if (IS_ERR(tcphy->grf_regs)) {
> +		dev_err(dev, "could not find grf dt node\n");
> +		return PTR_ERR(tcphy->grf_regs);
> +	}
> +
> +	tcphy->clk_core = devm_clk_get(dev, "tcpdcore");
> +	if (IS_ERR(tcphy->clk_core)) {
> +		dev_err(dev, "could not get uphy core clock\n");
> +		return PTR_ERR(tcphy->clk_core);
> +	}
> +
> +	tcphy->clk_ref = devm_clk_get(dev, "tcpdphy_ref");
> +	if (IS_ERR(tcphy->clk_ref)) {
> +		dev_err(dev, "could not get uphy ref clock\n");
> +		return PTR_ERR(tcphy->clk_ref);
> +	}
> +
> +	tcphy->phy_rst = devm_reset_control_get(dev, "tcphy");
> +	if (IS_ERR(tcphy->phy_rst)) {
> +		dev_err(dev, "no phy_rst reset control found\n");
> +		return PTR_ERR(tcphy->phy_rst);
> +	}
> +
> +	tcphy->pipe_rst = devm_reset_control_get(dev, "tcphy_pipe");
> +	if (IS_ERR(tcphy->pipe_rst)) {
> +		dev_err(dev, "no pipe_rst reset control found\n");
> +		return PTR_ERR(tcphy->pipe_rst);
> +	}
> +
> +	tcphy->uphy_rst = devm_reset_control_get(dev, "uphy_tcphy");
> +	if (IS_ERR(tcphy->uphy_rst)) {
> +		dev_err(dev, "no uphy_rst reset control found\n");
> +		return PTR_ERR(tcphy->uphy_rst);
> +	}
> +
> +	return 0;
> +}
> +
> +static int rockchip_typec_phy_probe(struct platform_device *pdev)
> +{
> +	struct device *dev = &pdev->dev;
> +	struct rockchip_typec_phy *tcphy;
> +	struct resource *res;
> +	struct phy_provider *phy_provider;
> +	int ret;
> +
> +	tcphy = devm_kzalloc(dev, sizeof(*tcphy), GFP_KERNEL);
> +	if (!tcphy)
> +		return -ENOMEM;
> +
> +	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +	tcphy->base = devm_ioremap_resource(dev, res);
> +	if (IS_ERR(tcphy->base)) {
> +		dev_err(dev, "failed to remap phy regs\n");
> +		return PTR_ERR(tcphy->base);
> +	}
> +
> +	tcphy_parse_dt(tcphy, dev);
> +
> +	tcphy->dev = dev;
> +	platform_set_drvdata(pdev, tcphy);
> +
> +	tcphy->mode = MODE_DISCONNECT;
> +
> +	tcphy->phy = devm_phy_create(dev, NULL, &rockchip_tcphy_ops);
> +	if (IS_ERR(tcphy->phy)) {
> +		dev_err(dev, "failed to create Tepy-c PHY\n");
> +		return PTR_ERR(tcphy->phy);
> +	}
> +
> +	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
> +	if (IS_ERR(phy_provider)) {
> +		dev_err(dev, "Failed to register phy provider\n");
> +		return PTR_ERR(phy_provider);
> +	}
> +
> +	tcphy->extcon = extcon_get_edev_by_phandle(dev, 0);
> +	if (IS_ERR(tcphy->extcon)) {
> +		if (PTR_ERR(tcphy->extcon) != -EPROBE_DEFER)
> +			dev_err(dev, "Invalid or missing extcon\n");
> +		return PTR_ERR(tcphy->extcon);
> +	}
> +
> +	tcphy->event_nb.notifier_call = tcphy_pd_event;
> +	INIT_DELAYED_WORK(&tcphy->event_wq, tcphy_event_wq);
> +	ret = extcon_register_notifier(tcphy->extcon, EXTCON_USB,
> +				       &tcphy->event_nb);
> +	if (ret) {
> +		dev_err(dev, "regitster notifer failed\n");
> +		return ret;
> +	}
> +
> +	return 0;
> +}
> +
> +static int rockchip_typec_phy_remove(struct platform_device *pdev)
> +{
> +	struct rockchip_typec_phy *tcphy = platform_get_drvdata(pdev);
> +
> +	extcon_unregister_notifier(tcphy->extcon, EXTCON_USB,
> +				   &tcphy->event_nb);
> +
> +	return 0;
> +}
> +
> +static const struct of_device_id rockchip_typec_phy_dt_ids[] = {
> +	{ .compatible = "rockchip,rk3399-typec-phy" },
> +	{}
> +};
> +
> +MODULE_DEVICE_TABLE(of, rockchip_typec_phy_dt_ids);
> +
> +static struct platform_driver rockchip_typec_phy_driver = {
> +	.probe		= rockchip_typec_phy_probe,
> +	.remove		= rockchip_typec_phy_remove,
> +	.driver		= {
> +		.name	= "rockchip-typec-phy",
> +		.of_match_table = rockchip_typec_phy_dt_ids,
> +	},
> +};
> +
> +module_platform_driver(rockchip_typec_phy_driver);
> +
> +MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
> +MODULE_AUTHOR("Kever Yang <kever.yang@rock-chips.com>");
> +MODULE_DESCRIPTION("Rockchip USB TYPE-C PHY driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/phy/phy-rockchip-typec.h b/include/linux/phy/phy-rockchip-typec.h
> new file mode 100644
> index 0000000..acdd8cb
> --- /dev/null
> +++ b/include/linux/phy/phy-rockchip-typec.h
> @@ -0,0 +1,20 @@
> +#ifndef PHY_ROCKCHIP_TYPEC_H_
> +#define PHY_ROCKCHIP_TYPEC_H_
> +
> +#define PIN_MAP_A	BIT(0)
> +#define PIN_MAP_B	BIT(1)
> +#define PIN_MAP_C	BIT(2)
> +#define PIN_MAP_D	BIT(3)
> +#define PIN_MAP_E	BIT(4)
> +#define PIN_MAP_F	BIT(5)
> +
> +#define SET_PIN_MAP(x)	(((x) & 0xff) << 24)
> +#define SET_FLIP(x)	(((x) & 0xff) << 16)
> +#define SET_DFP(x)	(((x) & 0xff) << 8)
> +#define SET_PLUGGED(x)	((x) & 0xff)
> +#define GET_PIN_MAP(x)	(((x) >> 24) & 0xff)
> +#define GET_FLIP(x)	(((x) >> 16) & 0xff)
> +#define GET_DFP(x)	(((x) >> 8) & 0xff)
> +#define GET_PLUGGED(x)	((x) & 0xff)
> +
> +#endif
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

Thanks,
- Kever

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399
  2016-06-13  9:39 ` [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399 Chris Zhong
  2016-06-16 12:48   ` Kever Yang
@ 2016-06-17 12:54   ` Kishon Vijay Abraham I
  2016-06-20  0:32     ` Chris Zhong
  2016-06-17 16:06   ` Tomasz Figa
  2016-06-18 15:45   ` Guenter Roeck
  3 siblings, 1 reply; 18+ messages in thread
From: Kishon Vijay Abraham I @ 2016-06-17 12:54 UTC (permalink / raw)
  To: Chris Zhong, dianders, tfiga, heiko, yzq, groeck
  Cc: linux-rockchip, Kever Yang, linux-kernel, linux-arm-kernel



On Monday 13 June 2016 03:09 PM, Chris Zhong wrote:
> Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
> Type-C PHY is designed to support the USB3 and DP applications. The
> PHY basically has two main components: USB3 and DisplyPort. USB3
> operates in SuperSpeed mode and the DP can operate at RBR, HBR and
> HBR2 data rates.
> 
> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
> Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
> 
> ---
> 
> Changes in v2:
> - select RESET_CONTROLLER
> - alphabetic order
> - modify some spelling mistakes
> - make mode cleaner
> - use bool for enable/disable
> - check all of the return value
> - return a better err number
> - use more readx_poll_timeout()
> - clk_disable_unprepare(tcphy->clk_ref);
> - remove unuse functions, rockchip_typec_phy_power_on/off
> - remove unnecessary typecast from void *
> - use dts node to distinguish between phys.
> 
> Changes in v1:
> - update the licence note
> - init core clock to 50MHz
> - use extcon API
> - remove unused global
> - add some comments for magic num
> - change usleep_range(1000, 2000) tousleep_range(1000, 1050)
> - remove __func__ from dev_err
> - return err number when get clk failed
> - remove ADDR_ADJ define
> - use devm_clk_get(&pdev->dev, "tcpdcore")
> 
>  drivers/phy/Kconfig                    |   8 +
>  drivers/phy/Makefile                   |   1 +
>  drivers/phy/phy-rockchip-typec.c       | 952 +++++++++++++++++++++++++++++++++
>  include/linux/phy/phy-rockchip-typec.h |  20 +
>  4 files changed, 981 insertions(+)
>  create mode 100644 drivers/phy/phy-rockchip-typec.c
>  create mode 100644 include/linux/phy/phy-rockchip-typec.h
> 
> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
> index 26566db..ec87b3a 100644
> --- a/drivers/phy/Kconfig
> +++ b/drivers/phy/Kconfig
> @@ -351,6 +351,14 @@ config PHY_ROCKCHIP_DP
>  	help
>  	  Enable this to support the Rockchip Display Port PHY.
>  
> +config PHY_ROCKCHIP_TYPEC
> +	tristate "Rockchip TYPEC PHY Driver"
> +	depends on ARCH_ROCKCHIP && OF
> +	select GENERIC_PHY
> +	select RESET_CONTROLLER
> +	help
> +	  Enable this to support the Rockchip USB TYPEC PHY.
> +
>  config PHY_ST_SPEAR1310_MIPHY
>  	tristate "ST SPEAR1310-MIPHY driver"
>  	select GENERIC_PHY
> diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
> index 24596a9..91fa413 100644
> --- a/drivers/phy/Makefile
> +++ b/drivers/phy/Makefile
> @@ -39,6 +39,7 @@ obj-$(CONFIG_PHY_QCOM_APQ8064_SATA)	+= phy-qcom-apq8064-sata.o
>  obj-$(CONFIG_PHY_ROCKCHIP_USB) += phy-rockchip-usb.o
>  obj-$(CONFIG_PHY_ROCKCHIP_EMMC) += phy-rockchip-emmc.o
>  obj-$(CONFIG_PHY_ROCKCHIP_DP)		+= phy-rockchip-dp.o
> +obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o
>  obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA)	+= phy-qcom-ipq806x-sata.o
>  obj-$(CONFIG_PHY_ST_SPEAR1310_MIPHY)	+= phy-spear1310-miphy.o
>  obj-$(CONFIG_PHY_ST_SPEAR1340_MIPHY)	+= phy-spear1340-miphy.o
> diff --git a/drivers/phy/phy-rockchip-typec.c b/drivers/phy/phy-rockchip-typec.c
> new file mode 100644
> index 0000000..230e074
> --- /dev/null
> +++ b/drivers/phy/phy-rockchip-typec.c

<snip>

> +static const struct phy_ops rockchip_tcphy_ops = {
> +	.owner          = THIS_MODULE,

no ops?
> +};
> +
> +static int tcphy_pd_event(struct notifier_block *nb,
> +			  unsigned long event, void *priv)
> +{
> +	struct rockchip_typec_phy *tcphy;
> +	struct extcon_dev *edev = priv;
> +	int value = edev->state;
> +	int mode;
> +	u8 is_plugged, dfp;
> +
> +	tcphy = container_of(nb, struct rockchip_typec_phy, event_nb);
> +
> +	is_plugged = GET_PLUGGED(value);
> +	tcphy->flip = GET_FLIP(value);
> +	dfp = GET_DFP(value);
> +	tcphy->map = GET_PIN_MAP(value);
> +
> +	if (is_plugged) {
> +		if (!dfp)
> +			mode = MODE_UFP_USB;
> +		else if (tcphy->map & (PIN_MAP_B | PIN_MAP_D | PIN_MAP_F))
> +			mode = MODE_DFP_USB | MODE_DFP_DP;
> +		else if (tcphy->map & (PIN_MAP_A | PIN_MAP_C | PIN_MAP_E))
> +			mode = MODE_DFP_DP;
> +		else
> +			mode = MODE_DFP_USB;
> +	} else {
> +		mode = MODE_DISCONNECT;
> +	}
> +
> +	if (tcphy->mode != mode) {
> +		tcphy->mode = mode;
> +		schedule_delayed_work_on(0, &tcphy->event_wq, 0);
> +	}
> +
> +	return 0;
> +}
> +
> +static void tcphy_event_wq(struct work_struct *work)
> +{
> +	struct rockchip_typec_phy *tcphy;
> +	int ret;
> +
> +	tcphy = container_of(work, struct rockchip_typec_phy, event_wq.work);
> +
> +	if (tcphy->mode == MODE_DISCONNECT) {
> +		tcphy_phy_deinit(tcphy);
> +		/* remove hpd sign for DP */
> +		if (tcphy->hpd_status) {
> +			regmap_write(tcphy->grf_regs, GRF_SOC_CON26,
> +				     DPTX_HPD_SEL_MASK | DPTX_HPD_DEL);
> +			tcphy->hpd_status = 0;
> +		}
> +	} else {
> +		ret = tcphy_phy_init(tcphy);
> +		if (ret)
> +			return;
> +
> +		if (tcphy->mode & (MODE_UFP_USB | MODE_DFP_USB))
> +			tcphy_usb3_init(tcphy);
> +
> +		if (tcphy->mode & MODE_DFP_DP) {
> +			ret = tcphy_dp_init(tcphy);
> +
> +			/* set hpd sign for DP, if DP phy is ready */
> +			if (!ret) {
> +				regmap_write(tcphy->grf_regs, GRF_SOC_CON26,
> +					     DPTX_HPD_SEL_MASK | DPTX_HPD_SEL);
> +				tcphy->hpd_status = 1;
> +			}
> +		}
> +	}
> +}
> +
> +static int tcphy_get_param(struct device *dev,
> +			   struct usb3phy_reg *reg,
> +			   const char *name)
> +{
> +	int ret, buffer[3];
> +
> +	ret = of_property_read_u32_array(dev->of_node, name, buffer, 3);
> +	if (ret) {
> +		dev_err(dev, "Can not parse %s\n", name);
> +		return ret;
> +	}
> +
> +	reg->offset = buffer[0];
> +	reg->enable_bit = buffer[1];
> +	reg->write_enable = buffer[2];
> +	return 0;
> +}
> +
> +static int tcphy_parse_dt(struct rockchip_typec_phy *tcphy,
> +			  struct device *dev)
> +{
> +	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
> +	int ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->typec_conn_dir,
> +			      "rockchip,typec_conn_dir");
> +	if (ret)
> +		return ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->usb3tousb2_en,
> +			      "rockchip,usb3tousb2_en");
> +	if (ret)
> +		return ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->external_psm,
> +			      "rockchip,external_psm");
> +	if (ret)
> +		return ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->pipe_status,
> +			      "rockchip,pipe_status");
> +	if (ret)
> +		return ret;
> +
> +	ret = tcphy_get_param(dev, &cfg->uphy_dp_sel,
> +			      "rockchip,uphy_dp_sel");
> +	if (ret)
> +		return ret;
> +
> +	tcphy->grf_regs = syscon_regmap_lookup_by_phandle(dev->of_node,
> +							  "rockchip,grf");
> +	if (IS_ERR(tcphy->grf_regs)) {
> +		dev_err(dev, "could not find grf dt node\n");
> +		return PTR_ERR(tcphy->grf_regs);
> +	}
> +
> +	tcphy->clk_core = devm_clk_get(dev, "tcpdcore");
> +	if (IS_ERR(tcphy->clk_core)) {
> +		dev_err(dev, "could not get uphy core clock\n");
> +		return PTR_ERR(tcphy->clk_core);
> +	}
> +
> +	tcphy->clk_ref = devm_clk_get(dev, "tcpdphy_ref");
> +	if (IS_ERR(tcphy->clk_ref)) {
> +		dev_err(dev, "could not get uphy ref clock\n");
> +		return PTR_ERR(tcphy->clk_ref);
> +	}
> +
> +	tcphy->phy_rst = devm_reset_control_get(dev, "tcphy");
> +	if (IS_ERR(tcphy->phy_rst)) {
> +		dev_err(dev, "no phy_rst reset control found\n");
> +		return PTR_ERR(tcphy->phy_rst);
> +	}
> +
> +	tcphy->pipe_rst = devm_reset_control_get(dev, "tcphy_pipe");
> +	if (IS_ERR(tcphy->pipe_rst)) {
> +		dev_err(dev, "no pipe_rst reset control found\n");
> +		return PTR_ERR(tcphy->pipe_rst);
> +	}
> +
> +	tcphy->uphy_rst = devm_reset_control_get(dev, "uphy_tcphy");
> +	if (IS_ERR(tcphy->uphy_rst)) {
> +		dev_err(dev, "no uphy_rst reset control found\n");
> +		return PTR_ERR(tcphy->uphy_rst);
> +	}
> +
> +	return 0;
> +}
> +
> +static int rockchip_typec_phy_probe(struct platform_device *pdev)
> +{
> +	struct device *dev = &pdev->dev;
> +	struct rockchip_typec_phy *tcphy;
> +	struct resource *res;
> +	struct phy_provider *phy_provider;
> +	int ret;
> +
> +	tcphy = devm_kzalloc(dev, sizeof(*tcphy), GFP_KERNEL);
> +	if (!tcphy)
> +		return -ENOMEM;
> +
> +	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +	tcphy->base = devm_ioremap_resource(dev, res);
> +	if (IS_ERR(tcphy->base)) {
> +		dev_err(dev, "failed to remap phy regs\n");
> +		return PTR_ERR(tcphy->base);
> +	}
> +
> +	tcphy_parse_dt(tcphy, dev);
> +
> +	tcphy->dev = dev;
> +	platform_set_drvdata(pdev, tcphy);
> +
> +	tcphy->mode = MODE_DISCONNECT;
> +
> +	tcphy->phy = devm_phy_create(dev, NULL, &rockchip_tcphy_ops);


your phy_ops doesn't have any ops populated. Is there a reason to use the phy
framework?

Thanks
Kishon

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399
  2016-06-13  9:39 ` [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399 Chris Zhong
  2016-06-16 12:48   ` Kever Yang
  2016-06-17 12:54   ` Kishon Vijay Abraham I
@ 2016-06-17 16:06   ` Tomasz Figa
  2016-06-20  7:59     ` Chris Zhong
  2016-06-18 15:45   ` Guenter Roeck
  3 siblings, 1 reply; 18+ messages in thread
From: Tomasz Figa @ 2016-06-17 16:06 UTC (permalink / raw)
  To: Chris Zhong
  Cc: Douglas Anderson, Heiko Stübner, 姚智情,
	groeck, open list:ARM/Rockchip SoC...,
	Kever Yang, Kishon Vijay Abraham I, linux-kernel,
	linux-arm-kernel

Hi Chris,

On Mon, Jun 13, 2016 at 6:39 PM, Chris Zhong <zyw@rock-chips.com> wrote:
> Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
> Type-C PHY is designed to support the USB3 and DP applications. The
> PHY basically has two main components: USB3 and DisplyPort. USB3
> operates in SuperSpeed mode and the DP can operate at RBR, HBR and
> HBR2 data rates.

Please see my comments inline.

[snip]

> diff --git a/drivers/phy/phy-rockchip-typec.c b/drivers/phy/phy-rockchip-typec.c
> new file mode 100644
> index 0000000..230e074
> --- /dev/null
> +++ b/drivers/phy/phy-rockchip-typec.c
> @@ -0,0 +1,952 @@
[snip]
> +
> +#define XCVR_PSM_RCTRL(n)              ((0x4001 | (n << 9)) << 2)

It's not very safe to not have parentheses around the macro argument
dereference. Please add to all macros, such as below:

#define XCVR_PSM_RCTRL(n)              ((0x4001 | ((n) << 9)) << 2)

> +#define XCVR_PSM_CAL_TMR(n)            ((0x4002 | (n << 9)) << 2)
> +#define XCVR_PSM_A0IN_TMR(n)           ((0x4003 | (n << 9)) << 2)
> +#define TX_TXCC_CAL_SCLR_MULT(n)       ((0x4047 | (n << 9)) << 2)
> +#define TX_TXCC_CPOST_MULT_00(n)       ((0x404c | (n << 9)) << 2)
> +#define TX_TXCC_CPOST_MULT_01(n)       ((0x404d | (n << 9)) << 2)
> +#define TX_TXCC_CPOST_MULT_10(n)       ((0x404e | (n << 9)) << 2)
> +#define TX_TXCC_CPOST_MULT_11(n)       ((0x404f | (n << 9)) << 2)
[snip]
> +#define PHY_MODE_SET_TIMEOUT           1000000
> +
> +#define        MODE_DISCONNECT                 0
> +#define        MODE_UFP_USB                    BIT(0)
> +#define        MODE_DFP_USB                    BIT(1)
> +#define        MODE_DFP_DP                     BIT(2)

CodingStyle: Why is there a tab between #define and name?

> +
> +struct usb3phy_reg {
> +       u32     offset;
> +       u32     enable_bit;
> +       u32     write_enable;

CodingStyle: I believe it's generally preferable to just use a single
space between type and name. Also applies to other structs in this
file.

> +};
> +
> +struct rockchip_usb3phy_port_cfg {
> +       struct usb3phy_reg      typec_conn_dir;
> +       struct usb3phy_reg      usb3tousb2_en;
[snip]
> +struct phy_reg {
> +       int value;
> +       int addr;
> +};
> +
> +struct phy_reg usb_pll_cfg[] = {
> +       {0xf0,          CMN_PLL0_VCOCAL_INIT},

CodingStyle: Please add spaces after opening and before closing braces.

> +       {0x18,          CMN_PLL0_VCOCAL_ITER},
> +       {0xd0,          CMN_PLL0_INTDIV},
> +       {0x4a4a,        CMN_PLL0_FRACDIV},
> +       {0x34,          CMN_PLL0_HIGH_THR},
> +       {0x1ee,         CMN_PLL0_SS_CTRL1},
> +       {0x7f03,        CMN_PLL0_SS_CTRL2},
> +       {0x20,          CMN_PLL0_DSM_DIAG},
> +       {0,             CMN_DIAG_PLL0_OVRD},
> +       {0,             CMN_DIAG_PLL0_FBH_OVRD},
> +       {0,             CMN_DIAG_PLL0_FBL_OVRD},
> +       {0x7,           CMN_DIAG_PLL0_V2I_TUNE},
> +       {0x45,          CMN_DIAG_PLL0_CP_TUNE},
> +       {0x8,           CMN_DIAG_PLL0_LF_PROG},

It would be generally much, much better if these magic numbers were
dissected into particular bitfields and defined using macros, if
possible... The same applies to all other magic numbers in this file.

> +};
> +
> +struct phy_reg dp_pll_cfg[] = {
[snip]
> +static void tcphy_cfg_usb_pll(struct rockchip_typec_phy *tcphy)
> +{
> +       u32 rdata;
> +       u32 i;
> +
> +       /*
> +        * Selects which PLL clock will be driven on the analog high speed
> +        * clock 0: PLL 0 div 1.
> +        */
> +       rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
> +       writel(rdata & 0xfffc, tcphy->base + CMN_DIAG_HSCLK_SEL);

This mask looks suspiciously. Is clearing bits 31-16 and 1-0 what we
want here? I'd advise for manipulating the value in separate line and
then only calling writel() with the final value already in the
variable.

> +
> +       /* load the configuration of PLL0 */
> +       for (i = 0; i < ARRAY_SIZE(usb_pll_cfg); i++)
> +               writel(usb_pll_cfg[i].value, tcphy->base + usb_pll_cfg[i].addr);
> +}
> +
> +static void tcphy_cfg_dp_pll(struct rockchip_typec_phy *tcphy)
> +{
> +       u32 rdata;
> +       u32 i;
> +
> +       /* set the default mode to RBR */
> +       writel(DP_PLL_CLOCK_ENABLE | DP_PLL_ENABLE | DP_PLL_DATA_RATE_RBR,
> +              tcphy->base + DP_CLK_CTL);

This looks (and is understandable) much better than magic numbers in
other parts of this file!

> +
> +       /*
> +        * Selects which PLL clock will be driven on the analog high speed
> +        * clock 1: PLL 1 div 2.
> +        */
> +       rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
> +       rdata = (rdata & 0xffcf) | 0x30;

If the & operation here is used to clear a bitfield, please use the
negative notation, e.g.

rdata &= ~0x30;
rdata |= 0x30;

(By the way, the AND NOT and OR with the same value is what the code
above does, which would make sense if the bitfield mask was defined by
a macro, but doesn't make any sense with magic numbers.)

It looks like the registers are 16-bit. Should they really be accessed
with readl() and not readw()? If they are accessed with readl(), what
is returned in most significant 16 bits and what should be written
there?

> +       writel(rdata, tcphy->base + CMN_DIAG_HSCLK_SEL);
> +
> +       /* load the configuration of PLL1 */
> +       for (i = 0; i < ARRAY_SIZE(dp_pll_cfg); i++)
> +               writel(dp_pll_cfg[i].value, tcphy->base + dp_pll_cfg[i].addr);
> +}
[snip]
> +static inline int property_enable(struct rockchip_typec_phy *tcphy,
> +                                 const struct usb3phy_reg *reg, bool en)
> +{
> +       int mask = 1 << reg->write_enable;
> +       int val = en << reg->enable_bit;

A signed int is not really a good data type to store register values
in. Please use a fixed size unsigned data type with size matching the
registers, e.g. u32 or u16.

> +
> +       return regmap_write(tcphy->grf_regs, reg->offset, val | mask);
> +}
[snip]
> +       /*
> +        * Controls auxda_polarity, which selects the polarity of the xcvr
> +        * 1'b1 : Reverses the polarity (If TYPEC, Pulls ups aux_p and pull
> +        * down aux_m)
> +        * 1'b0 : Normal polarity (if TYPE_C, pulls up aux_m and pulls down
> +        * aux_p)
> +        */
> +       if (tcphy->flip)
> +               writel(0xa078, tcphy->base + TX_ANA_CTRL_REG_1);
> +       else
> +               writel(0xb078, tcphy->base + TX_ANA_CTRL_REG_1);

nit: IMHO it would be a bit more readable if done like this:

val = 0xa078; // Or proper bitfield definitions ORed together...
if (!tcphy->flip)
    val |= BIT(12); // Or proper bitfield macro...
writel(val, tcphy->base + TX_ANA_CTRL_REG1);

> +
> +       writel(0, tcphy->base + TX_ANA_CTRL_REG_3);
> +       writel(0, tcphy->base + TX_ANA_CTRL_REG_4);
> +       writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
[snip]
> +       ret = clk_set_rate(tcphy->clk_core, 50000000);
> +       if (ret) {
> +               dev_err(tcphy->dev, "set type-c phy core clk rate failed\n");
> +               goto clk_ref_failed;

CodingStyle: The convention is to name the labels after the clean-up
step that is done at them, e.g. err_clk_core.

> +       }
> +
> +       ret = clk_prepare_enable(tcphy->clk_ref);
> +       if (ret) {
> +               dev_err(tcphy->dev, "Failed to prepare_enable ref clock\n");
> +               goto clk_ref_failed;
> +       }
[snip]
> +static void tcphy_phy_deinit(struct rockchip_typec_phy *tcphy)
> +{
> +       clk_disable_unprepare(tcphy->clk_core);
> +       clk_disable_unprepare(tcphy->clk_ref);
> +}
> +
> +static const struct phy_ops rockchip_tcphy_ops = {
> +       .owner          = THIS_MODULE,

Hmm, if there is no phy ops, how the phy consumer drivers request the
PHY to do anything?

> +};
> +
> +static int tcphy_pd_event(struct notifier_block *nb,
> +                         unsigned long event, void *priv)
> +{
[snip]
> +static int tcphy_get_param(struct device *dev,
> +                          struct usb3phy_reg *reg,
> +                          const char *name)
> +{
> +       int ret, buffer[3];

Shouldn't buffer be u32[3]?

> +
> +       ret = of_property_read_u32_array(dev->of_node, name, buffer, 3);
> +       if (ret) {
> +               dev_err(dev, "Can not parse %s\n", name);
> +               return ret;
> +       }
[snip]
> diff --git a/include/linux/phy/phy-rockchip-typec.h b/include/linux/phy/phy-rockchip-typec.h
> new file mode 100644
> index 0000000..acdd8cb
> --- /dev/null
> +++ b/include/linux/phy/phy-rockchip-typec.h
> @@ -0,0 +1,20 @@
> +#ifndef PHY_ROCKCHIP_TYPEC_H_
> +#define PHY_ROCKCHIP_TYPEC_H_
> +
> +#define PIN_MAP_A      BIT(0)
> +#define PIN_MAP_B      BIT(1)
> +#define PIN_MAP_C      BIT(2)
> +#define PIN_MAP_D      BIT(3)
> +#define PIN_MAP_E      BIT(4)
> +#define PIN_MAP_F      BIT(5)
> +
> +#define SET_PIN_MAP(x) (((x) & 0xff) << 24)
> +#define SET_FLIP(x)    (((x) & 0xff) << 16)
> +#define SET_DFP(x)     (((x) & 0xff) << 8)
> +#define SET_PLUGGED(x) ((x) & 0xff)
> +#define GET_PIN_MAP(x) (((x) >> 24) & 0xff)
> +#define GET_FLIP(x)    (((x) >> 16) & 0xff)
> +#define GET_DFP(x)     (((x) >> 8) & 0xff)
> +#define GET_PLUGGED(x) ((x) & 0xff)

Who is the user of the definitions in this header?

Best regards,
Tomasz

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399
  2016-06-13  9:39 ` [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399 Chris Zhong
                     ` (2 preceding siblings ...)
  2016-06-17 16:06   ` Tomasz Figa
@ 2016-06-18 15:45   ` Guenter Roeck
  2016-06-20  5:57     ` Chris Zhong
  3 siblings, 1 reply; 18+ messages in thread
From: Guenter Roeck @ 2016-06-18 15:45 UTC (permalink / raw)
  To: Chris Zhong
  Cc: Douglas Anderson, Tomasz Figa, Heiko Stübner, yzq,
	Guenter Roeck, linux-rockchip, Kever Yang,
	Kishon Vijay Abraham I, linux-kernel, linux-arm-kernel

Hi Chris,

On Mon, Jun 13, 2016 at 2:39 AM, Chris Zhong <zyw@rock-chips.com> wrote:
> Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
> Type-C PHY is designed to support the USB3 and DP applications. The
> PHY basically has two main components: USB3 and DisplyPort. USB3
> operates in SuperSpeed mode and the DP can operate at RBR, HBR and
> HBR2 data rates.
>

I started integrating the driver with our code.
Doing so, I realized a problem in the way you are using extcon.

[ ... ]

> +
> +static int tcphy_pd_event(struct notifier_block *nb,
> +                         unsigned long event, void *priv)
> +{
> +       struct rockchip_typec_phy *tcphy;
> +       struct extcon_dev *edev = priv;
> +       int value = edev->state;
> +       int mode;
> +       u8 is_plugged, dfp;
> +
> +       tcphy = container_of(nb, struct rockchip_typec_phy, event_nb);
> +
> +       is_plugged = GET_PLUGGED(value);
> +       tcphy->flip = GET_FLIP(value);
> +       dfp = GET_DFP(value);
> +       tcphy->map = GET_PIN_MAP(value);
> +

I don't think it is a good idea to use the extcon 'state' field like
this. I don't even think it is possible.

The state is supposed to be a bit mask, each bit indicating if a
specific connector (or functionality) on the cable is attached. The
extcon notifier code walks through this bit mask and determines based
on changed bits if the notifier should be called. So the notifier in
this case would only be called if bit 1 (EXTCON_USB) of 'state' has
changed, but not if one of the other bits has changed. One would have
to define 32 "virtual" cables, one for each bit, for this to work, and
then you would have to register a notifier for each of the bits. That
would not really make sense.

Of course, that makes using the extcon notifier quite useless for our
purpose, since we need the callback not only if a cable has been
attached or deattached, but also if some secondary state changes. I
don't really know myself how to solve the problem; I'll need to think
about it some more. Maybe we can add a callback into the type-c
infrastructure code and somehow tie into that code, but I don't know
yet if that is feasible either.

Guenter

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399
  2016-06-17 12:54   ` Kishon Vijay Abraham I
@ 2016-06-20  0:32     ` Chris Zhong
  0 siblings, 0 replies; 18+ messages in thread
From: Chris Zhong @ 2016-06-20  0:32 UTC (permalink / raw)
  To: Kishon Vijay Abraham I, dianders, tfiga, heiko, yzq, groeck
  Cc: linux-rockchip, Kever Yang, linux-kernel, linux-arm-kernel

Hi Kishon

On 06/17/2016 08:54 PM, Kishon Vijay Abraham I wrote:
>
> On Monday 13 June 2016 03:09 PM, Chris Zhong wrote:
>> Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
>> Type-C PHY is designed to support the USB3 and DP applications. The
>> PHY basically has two main components: USB3 and DisplyPort. USB3
>> operates in SuperSpeed mode and the DP can operate at RBR, HBR and
>> HBR2 data rates.
>>
>> Signed-off-by: Chris Zhong <zyw@rock-chips.com>
>> Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
>>
>> ---
>>
>> Changes in v2:
>> - select RESET_CONTROLLER
>> - alphabetic order
>> - modify some spelling mistakes
>> - make mode cleaner
>> - use bool for enable/disable
>> - check all of the return value
>> - return a better err number
>> - use more readx_poll_timeout()
>> - clk_disable_unprepare(tcphy->clk_ref);
>> - remove unuse functions, rockchip_typec_phy_power_on/off
>> - remove unnecessary typecast from void *
>> - use dts node to distinguish between phys.
>>
>> Changes in v1:
>> - update the licence note
>> - init core clock to 50MHz
>> - use extcon API
>> - remove unused global
>> - add some comments for magic num
>> - change usleep_range(1000, 2000) tousleep_range(1000, 1050)
>> - remove __func__ from dev_err
>> - return err number when get clk failed
>> - remove ADDR_ADJ define
>> - use devm_clk_get(&pdev->dev, "tcpdcore")
>>
>>   drivers/phy/Kconfig                    |   8 +
>>   drivers/phy/Makefile                   |   1 +
>>   drivers/phy/phy-rockchip-typec.c       | 952 +++++++++++++++++++++++++++++++++
>>   include/linux/phy/phy-rockchip-typec.h |  20 +
>>   4 files changed, 981 insertions(+)
>>   create mode 100644 drivers/phy/phy-rockchip-typec.c
>>   create mode 100644 include/linux/phy/phy-rockchip-typec.h
>>
>> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
>> index 26566db..ec87b3a 100644
>> --- a/drivers/phy/Kconfig
>> +++ b/drivers/phy/Kconfig
>> @@ -351,6 +351,14 @@ config PHY_ROCKCHIP_DP
>>   	help
>>   	  Enable this to support the Rockchip Display Port PHY.
>>   
>> +config PHY_ROCKCHIP_TYPEC
>> +	tristate "Rockchip TYPEC PHY Driver"
>> +	depends on ARCH_ROCKCHIP && OF
>> +	select GENERIC_PHY
>> +	select RESET_CONTROLLER
>> +	help
>> +	  Enable this to support the Rockchip USB TYPEC PHY.
>> +
>>   config PHY_ST_SPEAR1310_MIPHY
>>   	tristate "ST SPEAR1310-MIPHY driver"
>>   	select GENERIC_PHY
>> diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
>> index 24596a9..91fa413 100644
>> --- a/drivers/phy/Makefile
>> +++ b/drivers/phy/Makefile
>> @@ -39,6 +39,7 @@ obj-$(CONFIG_PHY_QCOM_APQ8064_SATA)	+= phy-qcom-apq8064-sata.o
>>   obj-$(CONFIG_PHY_ROCKCHIP_USB) += phy-rockchip-usb.o
>>   obj-$(CONFIG_PHY_ROCKCHIP_EMMC) += phy-rockchip-emmc.o
>>   obj-$(CONFIG_PHY_ROCKCHIP_DP)		+= phy-rockchip-dp.o
>> +obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o
>>   obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA)	+= phy-qcom-ipq806x-sata.o
>>   obj-$(CONFIG_PHY_ST_SPEAR1310_MIPHY)	+= phy-spear1310-miphy.o
>>   obj-$(CONFIG_PHY_ST_SPEAR1340_MIPHY)	+= phy-spear1340-miphy.o
>> diff --git a/drivers/phy/phy-rockchip-typec.c b/drivers/phy/phy-rockchip-typec.c
>> new file mode 100644
>> index 0000000..230e074
>> --- /dev/null
>> +++ b/drivers/phy/phy-rockchip-typec.c
> <snip>
>
>> +static const struct phy_ops rockchip_tcphy_ops = {
>> +	.owner          = THIS_MODULE,
> no ops?
>> +};
>> +
>> +static int tcphy_pd_event(struct notifier_block *nb,
>> +			  unsigned long event, void *priv)
>> +{
>> +	struct rockchip_typec_phy *tcphy;
>> +	struct extcon_dev *edev = priv;
>> +	int value = edev->state;
>> +	int mode;
>> +	u8 is_plugged, dfp;
>> +
>> +	tcphy = container_of(nb, struct rockchip_typec_phy, event_nb);
>> +
>> +	is_plugged = GET_PLUGGED(value);
>> +	tcphy->flip = GET_FLIP(value);
>> +	dfp = GET_DFP(value);
>> +	tcphy->map = GET_PIN_MAP(value);
>> +
>> +	if (is_plugged) {
>> +		if (!dfp)
>> +			mode = MODE_UFP_USB;
>> +		else if (tcphy->map & (PIN_MAP_B | PIN_MAP_D | PIN_MAP_F))
>> +			mode = MODE_DFP_USB | MODE_DFP_DP;
>> +		else if (tcphy->map & (PIN_MAP_A | PIN_MAP_C | PIN_MAP_E))
>> +			mode = MODE_DFP_DP;
>> +		else
>> +			mode = MODE_DFP_USB;
>> +	} else {
>> +		mode = MODE_DISCONNECT;
>> +	}
>> +
>> +	if (tcphy->mode != mode) {
>> +		tcphy->mode = mode;
>> +		schedule_delayed_work_on(0, &tcphy->event_wq, 0);
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +static void tcphy_event_wq(struct work_struct *work)
>> +{
>> +	struct rockchip_typec_phy *tcphy;
>> +	int ret;
>> +
>> +	tcphy = container_of(work, struct rockchip_typec_phy, event_wq.work);
>> +
>> +	if (tcphy->mode == MODE_DISCONNECT) {
>> +		tcphy_phy_deinit(tcphy);
>> +		/* remove hpd sign for DP */
>> +		if (tcphy->hpd_status) {
>> +			regmap_write(tcphy->grf_regs, GRF_SOC_CON26,
>> +				     DPTX_HPD_SEL_MASK | DPTX_HPD_DEL);
>> +			tcphy->hpd_status = 0;
>> +		}
>> +	} else {
>> +		ret = tcphy_phy_init(tcphy);
>> +		if (ret)
>> +			return;
>> +
>> +		if (tcphy->mode & (MODE_UFP_USB | MODE_DFP_USB))
>> +			tcphy_usb3_init(tcphy);
>> +
>> +		if (tcphy->mode & MODE_DFP_DP) {
>> +			ret = tcphy_dp_init(tcphy);
>> +
>> +			/* set hpd sign for DP, if DP phy is ready */
>> +			if (!ret) {
>> +				regmap_write(tcphy->grf_regs, GRF_SOC_CON26,
>> +					     DPTX_HPD_SEL_MASK | DPTX_HPD_SEL);
>> +				tcphy->hpd_status = 1;
>> +			}
>> +		}
>> +	}
>> +}
>> +
>> +static int tcphy_get_param(struct device *dev,
>> +			   struct usb3phy_reg *reg,
>> +			   const char *name)
>> +{
>> +	int ret, buffer[3];
>> +
>> +	ret = of_property_read_u32_array(dev->of_node, name, buffer, 3);
>> +	if (ret) {
>> +		dev_err(dev, "Can not parse %s\n", name);
>> +		return ret;
>> +	}
>> +
>> +	reg->offset = buffer[0];
>> +	reg->enable_bit = buffer[1];
>> +	reg->write_enable = buffer[2];
>> +	return 0;
>> +}
>> +
>> +static int tcphy_parse_dt(struct rockchip_typec_phy *tcphy,
>> +			  struct device *dev)
>> +{
>> +	struct rockchip_usb3phy_port_cfg *cfg = &tcphy->port_cfgs;
>> +	int ret;
>> +
>> +	ret = tcphy_get_param(dev, &cfg->typec_conn_dir,
>> +			      "rockchip,typec_conn_dir");
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = tcphy_get_param(dev, &cfg->usb3tousb2_en,
>> +			      "rockchip,usb3tousb2_en");
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = tcphy_get_param(dev, &cfg->external_psm,
>> +			      "rockchip,external_psm");
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = tcphy_get_param(dev, &cfg->pipe_status,
>> +			      "rockchip,pipe_status");
>> +	if (ret)
>> +		return ret;
>> +
>> +	ret = tcphy_get_param(dev, &cfg->uphy_dp_sel,
>> +			      "rockchip,uphy_dp_sel");
>> +	if (ret)
>> +		return ret;
>> +
>> +	tcphy->grf_regs = syscon_regmap_lookup_by_phandle(dev->of_node,
>> +							  "rockchip,grf");
>> +	if (IS_ERR(tcphy->grf_regs)) {
>> +		dev_err(dev, "could not find grf dt node\n");
>> +		return PTR_ERR(tcphy->grf_regs);
>> +	}
>> +
>> +	tcphy->clk_core = devm_clk_get(dev, "tcpdcore");
>> +	if (IS_ERR(tcphy->clk_core)) {
>> +		dev_err(dev, "could not get uphy core clock\n");
>> +		return PTR_ERR(tcphy->clk_core);
>> +	}
>> +
>> +	tcphy->clk_ref = devm_clk_get(dev, "tcpdphy_ref");
>> +	if (IS_ERR(tcphy->clk_ref)) {
>> +		dev_err(dev, "could not get uphy ref clock\n");
>> +		return PTR_ERR(tcphy->clk_ref);
>> +	}
>> +
>> +	tcphy->phy_rst = devm_reset_control_get(dev, "tcphy");
>> +	if (IS_ERR(tcphy->phy_rst)) {
>> +		dev_err(dev, "no phy_rst reset control found\n");
>> +		return PTR_ERR(tcphy->phy_rst);
>> +	}
>> +
>> +	tcphy->pipe_rst = devm_reset_control_get(dev, "tcphy_pipe");
>> +	if (IS_ERR(tcphy->pipe_rst)) {
>> +		dev_err(dev, "no pipe_rst reset control found\n");
>> +		return PTR_ERR(tcphy->pipe_rst);
>> +	}
>> +
>> +	tcphy->uphy_rst = devm_reset_control_get(dev, "uphy_tcphy");
>> +	if (IS_ERR(tcphy->uphy_rst)) {
>> +		dev_err(dev, "no uphy_rst reset control found\n");
>> +		return PTR_ERR(tcphy->uphy_rst);
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +static int rockchip_typec_phy_probe(struct platform_device *pdev)
>> +{
>> +	struct device *dev = &pdev->dev;
>> +	struct rockchip_typec_phy *tcphy;
>> +	struct resource *res;
>> +	struct phy_provider *phy_provider;
>> +	int ret;
>> +
>> +	tcphy = devm_kzalloc(dev, sizeof(*tcphy), GFP_KERNEL);
>> +	if (!tcphy)
>> +		return -ENOMEM;
>> +
>> +	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> +	tcphy->base = devm_ioremap_resource(dev, res);
>> +	if (IS_ERR(tcphy->base)) {
>> +		dev_err(dev, "failed to remap phy regs\n");
>> +		return PTR_ERR(tcphy->base);
>> +	}
>> +
>> +	tcphy_parse_dt(tcphy, dev);
>> +
>> +	tcphy->dev = dev;
>> +	platform_set_drvdata(pdev, tcphy);
>> +
>> +	tcphy->mode = MODE_DISCONNECT;
>> +
>> +	tcphy->phy = devm_phy_create(dev, NULL, &rockchip_tcphy_ops);
>
> your phy_ops doesn't have any ops populated. Is there a reason to use the phy
> framework?
>
> Thanks
> Kishon
>
>
Yes, I am thinking about it, remove it would be better.

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399
  2016-06-18 15:45   ` Guenter Roeck
@ 2016-06-20  5:57     ` Chris Zhong
  0 siblings, 0 replies; 18+ messages in thread
From: Chris Zhong @ 2016-06-20  5:57 UTC (permalink / raw)
  To: Guenter Roeck
  Cc: Douglas Anderson, Tomasz Figa, Heiko Stübner, yzq,
	Guenter Roeck, linux-rockchip, Kever Yang,
	Kishon Vijay Abraham I, linux-kernel, linux-arm-kernel

Hi Guenter

On 06/18/2016 11:45 PM, Guenter Roeck wrote:
> Hi Chris,
>
> On Mon, Jun 13, 2016 at 2:39 AM, Chris Zhong <zyw@rock-chips.com> wrote:
>> Add a PHY provider driver for the rk3399 SoC Type-c PHY. The USB
>> Type-C PHY is designed to support the USB3 and DP applications. The
>> PHY basically has two main components: USB3 and DisplyPort. USB3
>> operates in SuperSpeed mode and the DP can operate at RBR, HBR and
>> HBR2 data rates.
>>
> I started integrating the driver with our code.
> Doing so, I realized a problem in the way you are using extcon.
>
> [ ... ]
>
>> +
>> +static int tcphy_pd_event(struct notifier_block *nb,
>> +                         unsigned long event, void *priv)
>> +{
>> +       struct rockchip_typec_phy *tcphy;
>> +       struct extcon_dev *edev = priv;
>> +       int value = edev->state;
>> +       int mode;
>> +       u8 is_plugged, dfp;
>> +
>> +       tcphy = container_of(nb, struct rockchip_typec_phy, event_nb);
>> +
>> +       is_plugged = GET_PLUGGED(value);
>> +       tcphy->flip = GET_FLIP(value);
>> +       dfp = GET_DFP(value);
>> +       tcphy->map = GET_PIN_MAP(value);
>> +
> I don't think it is a good idea to use the extcon 'state' field like
> this. I don't even think it is possible.
>
> The state is supposed to be a bit mask, each bit indicating if a
> specific connector (or functionality) on the cable is attached. The
> extcon notifier code walks through this bit mask and determines based
> on changed bits if the notifier should be called. So the notifier in
> this case would only be called if bit 1 (EXTCON_USB) of 'state' has
> changed, but not if one of the other bits has changed. One would have
> to define 32 "virtual" cables, one for each bit, for this to work, and
> then you would have to register a notifier for each of the bits. That
> would not really make sense.
>
> Of course, that makes using the extcon notifier quite useless for our
> purpose, since we need the callback not only if a cable has been
> attached or deattached, but also if some secondary state changes. I
> don't really know myself how to solve the problem; I'll need to think
> about it some more. Maybe we can add a callback into the type-c
> infrastructure code and somehow tie into that code, but I don't know
> yet if that is feasible either.
>
> Guenter
>
>
Yes, currently, we can get the notification only when bit 0 change.
So the phy driver can know plug/unplug event.
if we need more trigger, how about set the BIT 0 for changed flag.

state = extcon_get_cable_state

state = ~state | is_plugged | flip | dfp | map

extcon_set_state(state)

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399
  2016-06-17 16:06   ` Tomasz Figa
@ 2016-06-20  7:59     ` Chris Zhong
  0 siblings, 0 replies; 18+ messages in thread
From: Chris Zhong @ 2016-06-20  7:59 UTC (permalink / raw)
  To: Tomasz Figa
  Cc: Douglas Anderson, Heiko Stübner, 姚智情,
	groeck, open list:ARM/Rockchip SoC...,
	Kever Yang, Kishon Vijay Abraham I, linux-kernel,
	linux-arm-kernel

Hi Tomasz

Thanks for your comments.
I will modify all the the part of snip. Please find my reply in the 
following.

On 06/18/2016 12:06 AM, Tomasz Figa wrote:
> Hi Chris,
>
>
> [snip]
>
>> +struct phy_reg {
>> +       int value;
>> +       int addr;
>> +};
>> +
>> +struct phy_reg usb_pll_cfg[] = {
>> +       {0xf0,          CMN_PLL0_VCOCAL_INIT},
> CodingStyle: Please add spaces after opening and before closing braces.
>
>> +       {0x18,          CMN_PLL0_VCOCAL_ITER},
>> +       {0xd0,          CMN_PLL0_INTDIV},
>> +       {0x4a4a,        CMN_PLL0_FRACDIV},
>> +       {0x34,          CMN_PLL0_HIGH_THR},
>> +       {0x1ee,         CMN_PLL0_SS_CTRL1},
>> +       {0x7f03,        CMN_PLL0_SS_CTRL2},
>> +       {0x20,          CMN_PLL0_DSM_DIAG},
>> +       {0,             CMN_DIAG_PLL0_OVRD},
>> +       {0,             CMN_DIAG_PLL0_FBH_OVRD},
>> +       {0,             CMN_DIAG_PLL0_FBL_OVRD},
>> +       {0x7,           CMN_DIAG_PLL0_V2I_TUNE},
>> +       {0x45,          CMN_DIAG_PLL0_CP_TUNE},
>> +       {0x8,           CMN_DIAG_PLL0_LF_PROG},
> It would be generally much, much better if these magic numbers were
> dissected into particular bitfields and defined using macros, if
> possible... The same applies to all other magic numbers in this file.
This magic number is very hard to describe, it is a initialization 
sequence from vendor.
Their names are very close to the description.
 From spec of cdn type-c phy:
Iteration wait timer value
pll_fb_div_integer value: Value of the pll_fb_div_integer signal.
pll_fb_div_fractional: Value of the pll_fb_div_fractional signal.
pll_fb_div_high_theshold: Value of the pll_fb_div_high_threshold signal.
...

>> +};
>> +
>> +struct phy_reg dp_pll_cfg[] = {
> [snip]
>> +static void tcphy_cfg_usb_pll(struct rockchip_typec_phy *tcphy)
>> +{
>> +       u32 rdata;
>> +       u32 i;
>> +
>> +       /*
>> +        * Selects which PLL clock will be driven on the analog high speed
>> +        * clock 0: PLL 0 div 1.
>> +        */
>> +       rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
>> +       writel(rdata & 0xfffc, tcphy->base + CMN_DIAG_HSCLK_SEL);
> This mask looks suspiciously. Is clearing bits 31-16 and 1-0 what we
> want here? I'd advise for manipulating the value in separate line and
> then only calling writel() with the final value already in the
> variable.
Yes, the register valid length is 16 bits, but the they are stored with 
32bit.
readl will return 0 in higher 16bit + valid value in lower 16bit.
and writel will ignore the higher 16bit.


>
>> +
>> +       /* load the configuration of PLL0 */
>> +       for (i = 0; i < ARRAY_SIZE(usb_pll_cfg); i++)
>> +               writel(usb_pll_cfg[i].value, tcphy->base + usb_pll_cfg[i].addr);
>> +}
>> +
>> +static void tcphy_cfg_dp_pll(struct rockchip_typec_phy *tcphy)
>> +{
>> +       u32 rdata;
>> +       u32 i;
>> +
>> +       /* set the default mode to RBR */
>> +       writel(DP_PLL_CLOCK_ENABLE | DP_PLL_ENABLE | DP_PLL_DATA_RATE_RBR,
>> +              tcphy->base + DP_CLK_CTL);
> This looks (and is understandable) much better than magic numbers in
> other parts of this file!
>
>> +
>> +       /*
>> +        * Selects which PLL clock will be driven on the analog high speed
>> +        * clock 1: PLL 1 div 2.
>> +        */
>> +       rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
>> +       rdata = (rdata & 0xffcf) | 0x30;
> If the & operation here is used to clear a bitfield, please use the
> negative notation, e.g.
>
> rdata &= ~0x30;
> rdata |= 0x30;
>
> (By the way, the AND NOT and OR with the same value is what the code
> above does, which would make sense if the bitfield mask was defined by
> a macro, but doesn't make any sense with magic numbers.)
>
> It looks like the registers are 16-bit. Should they really be accessed
> with readl() and not readw()? If they are accessed with readl(), what
> is returned in most significant 16 bits and what should be written
> there?
I will use macro here at next version
>
>> +       writel(rdata, tcphy->base + CMN_DIAG_HSCLK_SEL);
>> +
>> +       /* load the configuration of PLL1 */
>> +       for (i = 0; i < ARRAY_SIZE(dp_pll_cfg); i++)
>> +               writel(dp_pll_cfg[i].value, tcphy->base + dp_pll_cfg[i].addr);
>> +}
> [snip]
>> +       }
>> +
>> +       ret = clk_prepare_enable(tcphy->clk_ref);
>> +       if (ret) {
>> +               dev_err(tcphy->dev, "Failed to prepare_enable ref clock\n");
>> +               goto clk_ref_failed;
>> +       }
> [snip]
>> +static void tcphy_phy_deinit(struct rockchip_typec_phy *tcphy)
>> +{
>> +       clk_disable_unprepare(tcphy->clk_core);
>> +       clk_disable_unprepare(tcphy->clk_ref);
>> +}
>> +
>> +static const struct phy_ops rockchip_tcphy_ops = {
>> +       .owner          = THIS_MODULE,
> Hmm, if there is no phy ops, how the phy consumer drivers request the
> PHY to do anything?
There is no consumer call this phy, the power on and power off are 
called by notification.
So I am going to delete this ops next version.
>> +};
>> +
>> +static int tcphy_pd_event(struct notifier_block *nb,
>> +                         unsigned long event, void *priv)
>> +{
> [snip]
>> +static int tcphy_get_param(struct device *dev,
>> +                          struct usb3phy_reg *reg,
>> +                          const char *name)
>> +{
>> +       int ret, buffer[3];
> Shouldn't buffer be u32[3]?
>
>> +
>> +       ret = of_property_read_u32_array(dev->of_node, name, buffer, 3);
>> +       if (ret) {
>> +               dev_err(dev, "Can not parse %s\n", name);
>> +               return ret;
>> +       }
> [snip]
>> diff --git a/include/linux/phy/phy-rockchip-typec.h b/include/linux/phy/phy-rockchip-typec.h
>> new file mode 100644
>> index 0000000..acdd8cb
>> --- /dev/null
>> +++ b/include/linux/phy/phy-rockchip-typec.h
>> @@ -0,0 +1,20 @@
>> +#ifndef PHY_ROCKCHIP_TYPEC_H_
>> +#define PHY_ROCKCHIP_TYPEC_H_
>> +
>> +#define PIN_MAP_A      BIT(0)
>> +#define PIN_MAP_B      BIT(1)
>> +#define PIN_MAP_C      BIT(2)
>> +#define PIN_MAP_D      BIT(3)
>> +#define PIN_MAP_E      BIT(4)
>> +#define PIN_MAP_F      BIT(5)
>> +
>> +#define SET_PIN_MAP(x) (((x) & 0xff) << 24)
>> +#define SET_FLIP(x)    (((x) & 0xff) << 16)
>> +#define SET_DFP(x)     (((x) & 0xff) << 8)
>> +#define SET_PLUGGED(x) ((x) & 0xff)
>> +#define GET_PIN_MAP(x) (((x) >> 24) & 0xff)
>> +#define GET_FLIP(x)    (((x) >> 16) & 0xff)
>> +#define GET_DFP(x)     (((x) >> 8) & 0xff)
>> +#define GET_PLUGGED(x) ((x) & 0xff)
> Who is the user of the definitions in this header?
The type-c phy, Dp controller and Power delivery are the user.
Power delivery set the state and send the notification
type-c phy and Dp contoller get the state.


> Best regards,
> Tomasz
>
>
>

^ permalink raw reply	[flat|nested] 18+ messages in thread

end of thread, other threads:[~2016-06-20  8:01 UTC | newest]

Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-06-13  9:39 [v2 PATCH 0/4] Rockchip Type-C and DispplayPort driver Chris Zhong
2016-06-13  9:39 ` [v2 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY Chris Zhong
2016-06-14 22:51   ` Rob Herring
2016-06-15 22:11   ` Heiko Stuebner
2016-06-16  0:31     ` Chris Zhong
2016-06-16  7:49       ` Tomasz Figa
2016-06-16  8:54         ` Heiko Stübner
2016-06-13  9:39 ` [v2 PATCH 2/4] phy: Add USB Type-C PHY driver for rk3399 Chris Zhong
2016-06-16 12:48   ` Kever Yang
2016-06-17 12:54   ` Kishon Vijay Abraham I
2016-06-20  0:32     ` Chris Zhong
2016-06-17 16:06   ` Tomasz Figa
2016-06-20  7:59     ` Chris Zhong
2016-06-18 15:45   ` Guenter Roeck
2016-06-20  5:57     ` Chris Zhong
2016-06-13  9:39 ` [v2 PATCH 3/4] Documentation: bindings: add dt documentation for cdn DP controller Chris Zhong
2016-06-14 23:12   ` Rob Herring
2016-06-13  9:39 ` [v2 PATCH 4/4] drm/rockchip: cdn-dp: add cdn DP support for rk3399 Chris Zhong

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