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From: Maxime Ripard <maxime@cerno.tech>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
	Eric Anholt <eric@anholt.net>
Cc: dri-devel@lists.freedesktop.org,
	linux-rpi-kernel@lists.infradead.org,
	bcm-kernel-feedback-list@broadcom.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Dave Stevenson <dave.stevenson@raspberrypi.com>,
	Tim Gover <tim.gover@raspberrypi.com>,
	Phil Elwell <phil@raspberrypi.com>,
	Maxime Ripard <maxime@cerno.tech>
Subject: [PATCH 76/89] drm/vc4: hdmi: Add PHY RNG enable / disable function
Date: Mon, 24 Feb 2020 10:07:18 +0100	[thread overview]
Message-ID: <a651c02df91d28f288259af4a17dcc289e10053c.1582533919.git-series.maxime@cerno.tech> (raw)
In-Reply-To: <cover.6c896ace9a5a7840e9cec008b553cbb004ca1f91.1582533919.git-series.maxime@cerno.tech>

Let's continue the implementation of hooks for the parts that change in the
BCM2711 SoC with the PHY RNG setup.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c     | 15 +++++++++------
 drivers/gpu/drm/vc4/vc4_hdmi.h     |  8 ++++++++
 drivers/gpu/drm/vc4/vc4_hdmi_phy.c | 15 +++++++++++++++
 3 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 14c5ce4e7010..50d69c74c5c4 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -752,9 +752,9 @@ static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 		vc4_hdmi_set_audio_infoframe(encoder);
-		HDMI_WRITE(HDMI_TX_PHY_CTL_0,
-			   HDMI_READ(HDMI_TX_PHY_CTL_0) &
-			   ~VC4_HDMI_TX_PHY_RNG_PWRDN);
+
+		if (vc4_hdmi->variant->phy_rng_enable)
+			vc4_hdmi->variant->phy_rng_enable(vc4_hdmi);
 
 		HDMI_WRITE(HDMI_MAI_CTL,
 			 VC4_SET_FIELD(vc4_hdmi->audio.channels,
@@ -766,9 +766,10 @@ static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
 			 VC4_HD_MAI_CTL_DLATE |
 			 VC4_HD_MAI_CTL_ERRORE |
 			 VC4_HD_MAI_CTL_ERRORF);
-		HDMI_WRITE(HDMI_TX_PHY_CTL_0,
-			   HDMI_READ(HDMI_TX_PHY_CTL_0) |
-			   VC4_HDMI_TX_PHY_RNG_PWRDN);
+
+		if (vc4_hdmi->variant->phy_rng_disable)
+			vc4_hdmi->variant->phy_rng_disable(vc4_hdmi);
+
 		break;
 	default:
 		break;
@@ -1413,6 +1414,8 @@ struct vc4_hdmi_variant bcm2835_variant = {
 	.reset			= vc4_hdmi_reset,
 	.phy_init		= vc4_hdmi_phy_init,
 	.phy_disable		= vc4_hdmi_phy_disable,
+	.phy_rng_enable		= vc4_hdmi_phy_rng_enable,
+	.phy_rng_disable	= vc4_hdmi_phy_rng_disable,
 };
 
 static const struct of_device_id vc4_hdmi_dt_match[] = {
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 39ae5273f36b..9ae4d2c5a4f0 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -47,6 +47,12 @@ struct vc4_hdmi_variant {
 
 	/* Callback to disable the PHY */
 	void (*phy_disable)(struct vc4_hdmi *vc4_hdmi);
+
+	/* Callback to enable the RNG in the PHY */
+	void (*phy_rng_enable)(struct vc4_hdmi *vc4_hdmi);
+
+	/* Callback to disable the RNG in the PHY */
+	void (*phy_rng_disable)(struct vc4_hdmi *vc4_hdmi);
 };
 
 /* HDMI audio information */
@@ -107,5 +113,7 @@ encoder_to_vc4_hdmi(struct drm_encoder *encoder)
 void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
 		       struct drm_display_mode *mode);
 void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
+void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
+void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
 
 #endif /* _VC4_HDMI_H_ */
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
index 26d6ee08edcf..8fdea621d8b1 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
@@ -7,6 +7,7 @@
  */
 
 #include "vc4_hdmi.h"
+#include "vc4_regs.h"
 #include "vc4_hdmi_regs.h"
 
 void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode)
@@ -23,3 +24,17 @@ void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi)
 {
 	HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
 }
+
+void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi)
+{
+	HDMI_WRITE(HDMI_TX_PHY_CTL_0,
+		   HDMI_READ(HDMI_TX_PHY_CTL_0) &
+		   ~VC4_HDMI_TX_PHY_RNG_PWRDN);
+}
+
+void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi)
+{
+	HDMI_WRITE(HDMI_TX_PHY_CTL_0,
+		   HDMI_READ(HDMI_TX_PHY_CTL_0) |
+		   VC4_HDMI_TX_PHY_RNG_PWRDN);
+}
-- 
git-series 0.9.1

  parent reply	other threads:[~2020-02-24  9:10 UTC|newest]

Thread overview: 161+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-24  9:06 [PATCH 00/89] drm/vc4: Support BCM2711 Display Pipeline Maxime Ripard
2020-02-24  9:06 ` [PATCH 01/89] dt-bindings: i2c: brcmstb: Convert the BRCMSTB binding to a schema Maxime Ripard
2020-02-24 17:40   ` Florian Fainelli
2020-02-25 18:14   ` Rob Herring
2020-03-10 10:07   ` Wolfram Sang
2020-03-10 10:07   ` Wolfram Sang
2020-02-24  9:06 ` [PATCH 02/89] dt-bindings: i2c: brcmstb: Add BCM2711 BSC/AUTO-I2C binding Maxime Ripard
2020-02-24 17:48   ` Florian Fainelli
2020-02-25 18:15   ` Rob Herring
2020-03-10 10:07   ` Wolfram Sang
2020-02-24  9:06 ` [PATCH 03/89] i2c: brcmstb: Support BCM2711 HDMI BSC controllers Maxime Ripard
2020-02-24 17:44   ` Florian Fainelli
2020-03-10 10:12   ` Wolfram Sang
2020-02-24  9:06 ` [PATCH 04/89] i2c: brcmstb: Allow to compile it on BCM2835 Maxime Ripard
2020-02-24 17:39   ` Florian Fainelli
2020-03-10 10:16   ` Wolfram Sang
2020-02-24  9:06 ` [PATCH 05/89] clk: Return error code when of provider pointer is NULL Maxime Ripard
2020-03-12 23:13   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 06/89] dt-bindings: clock: Add a binding for the RPi Firmware clocks Maxime Ripard
2020-02-25 18:16   ` Rob Herring
2020-03-12 23:14     ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 07/89] clk: bcm: rpi: Allow the driver to be probed by DT Maxime Ripard
2020-02-25 16:00   ` Nicolas Saenz Julienne
2020-02-26 15:01     ` Maxime Ripard
2020-02-28 19:57       ` Nicolas Saenz Julienne
2020-03-01 12:16   ` Stefan Wahren
2020-03-23 15:13     ` Maxime Ripard
2020-02-24  9:06 ` [PATCH 08/89] clk: bcm: rpi: Statically init clk_init_data Maxime Ripard
2020-02-25 16:05   ` Nicolas Saenz Julienne
2020-02-24  9:06 ` [PATCH 09/89] clk: bcm: rpi: Use clk_hw_register for pllb_arm Maxime Ripard
2020-02-25 16:11   ` Nicolas Saenz Julienne
2020-03-12 23:17   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 10/89] clk: bcm: rpi: Remove global pllb_arm clock pointer Maxime Ripard
2020-02-25 16:13   ` Nicolas Saenz Julienne
2020-02-26 14:26     ` Maxime Ripard
2020-02-26 14:57       ` Nicolas Saenz Julienne
2020-02-24  9:06 ` [PATCH 11/89] clk: bcm: rpi: Make sure pllb_arm is removed Maxime Ripard
2020-02-25 16:14   ` Nicolas Saenz Julienne
2020-03-12 23:20   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 12/89] clk: bcm: rpi: Remove pllb_arm_lookup global pointer Maxime Ripard
2020-02-25 16:16   ` Nicolas Saenz Julienne
2020-03-12 23:21   ` Stephen Boyd
2020-03-13  1:13   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 13/89] clk: bcm: rpi: Switch to clk_hw_register_clkdev Maxime Ripard
2020-02-25 16:17   ` Nicolas Saenz Julienne
2020-03-13  1:12   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 14/89] clk: bcm: rpi: Make sure the clkdev lookup is removed Maxime Ripard
2020-02-25 16:19   ` Nicolas Saenz Julienne
2020-03-13  1:11   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 15/89] clk: bcm: rpi: Create a data structure for the clocks Maxime Ripard
2020-02-25 16:24   ` Nicolas Saenz Julienne
2020-03-13  1:11   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 16/89] clk: bcm: rpi: Add clock id to data Maxime Ripard
2020-02-24 19:25   ` Stefan Wahren
2020-02-25  9:54     ` Maxime Ripard
2020-02-25 14:33       ` Nicolas Saenz Julienne
2020-02-25 16:24   ` Nicolas Saenz Julienne
2020-03-13  1:11   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 17/89] clk: bcm: rpi: Pass the clocks data to the firmware function Maxime Ripard
2020-02-25 16:26   ` Nicolas Saenz Julienne
2020-03-13  1:09   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 18/89] clk: bcm: rpi: Rename is_prepared function Maxime Ripard
2020-02-25 16:45   ` Nicolas Saenz Julienne
2020-03-13  1:09   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 19/89] clk: bcm: rpi: Split pllb clock hooks Maxime Ripard
2020-03-13  1:08   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 20/89] clk: bcm: rpi: Make the PLLB registration function return a clk_hw Maxime Ripard
2020-03-13  1:01   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 21/89] clk: bcm: rpi: Add DT provider for the clocks Maxime Ripard
2020-03-13  1:01   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 22/89] clk: bcm: rpi: Discover the firmware clocks Maxime Ripard
2020-02-24 16:47   ` kbuild test robot
2020-02-24 16:47   ` [PATCH] clk: bcm: rpi: fix noderef.cocci warnings kbuild test robot
2020-02-24 18:15   ` [PATCH 22/89] clk: bcm: rpi: Discover the firmware clocks Florian Fainelli
2020-02-26 14:15     ` Maxime Ripard
2020-02-24 20:24   ` kbuild test robot
2020-03-13  1:08   ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 23/89] ARM: dts: bcm2711: Add firmware clocks node Maxime Ripard
2020-02-24  9:06 ` [PATCH 24/89] reset: Move reset-simple header out of drivers/reset Maxime Ripard
2020-02-24  9:06 ` [PATCH 25/89] reset: simple: Add reset callback Maxime Ripard
2020-03-04 12:03   ` Philipp Zabel
2020-02-24  9:06 ` [PATCH 26/89] dt-bindings: clock: Add BCM2711 DVP binding Maxime Ripard
2020-02-25 18:17   ` Rob Herring
2020-02-24  9:06 ` [PATCH 27/89] clk: bcm: Add BCM2711 DVP driver Maxime Ripard
2020-03-13  1:00   ` Stephen Boyd
2020-03-23 10:56     ` Maxime Ripard
2020-03-25  2:20       ` Stephen Boyd
2020-02-24  9:06 ` [PATCH 28/89] ARM: dts: bcm2711: Add HDMI DVP Maxime Ripard
2020-02-24  9:06 ` [PATCH 29/89] dt-bindings: display: Convert VC4 bindings to schemas Maxime Ripard
2020-02-24 18:41   ` Rob Herring
2020-02-25 11:54     ` Maxime Ripard
2020-02-25 14:02       ` Rob Herring
2020-02-24  9:06 ` [PATCH 30/89] dt-bindings: display: vc4: dpi: Add missing clock-names property Maxime Ripard
2020-02-25 18:17   ` Rob Herring
2020-02-24  9:06 ` [PATCH 31/89] dt-bindings: display: vc4: dsi: Add missing clock properties Maxime Ripard
2020-02-25 18:18   ` Rob Herring
2020-02-24  9:06 ` [PATCH 32/89] dt-bindings: display: vc4: hdmi: Add missing clock-names property Maxime Ripard
2020-02-25 18:18   ` Rob Herring
2020-02-24  9:06 ` [PATCH 33/89] dt-bindings: display: vc4: Document BCM2711 VC5 Maxime Ripard
2020-02-25 18:18   ` Rob Herring
2020-02-24  9:06 ` [PATCH 34/89] drm/vc4: drv: Add include guards Maxime Ripard
2020-02-24  9:06 ` [PATCH 35/89] drm/vc4: drv: Support BCM2711 Maxime Ripard
2020-02-24  9:06 ` [PATCH 36/89] drm/vc4: drv: Add support for the BCM2711 HVS5 Maxime Ripard
2020-02-24  9:06 ` [PATCH 37/89] drm/vc4: plane: Improve LBM usage Maxime Ripard
2020-02-24  9:06 ` [PATCH 38/89] drm/vc4: plane: Move planes creation to its own function Maxime Ripard
2020-02-24  9:06 ` [PATCH 39/89] drm/vc4: plane: Move additional planes creation to driver Maxime Ripard
2020-02-24  9:06 ` [PATCH 40/89] drm/vc4: plane: Register all the planes at once Maxime Ripard
2020-02-24  9:06 ` [PATCH 41/89] drm/vc4: plane: Create overlays for any CRTC Maxime Ripard
2020-02-24  9:06 ` [PATCH 42/89] drm/vc4: plane: Create more planes Maxime Ripard
2020-02-24  9:06 ` [PATCH 43/89] drm/vc4: crtc: Rename SoC data structures Maxime Ripard
2020-02-24  9:06 ` [PATCH 44/89] drm/vc4: crtc: Move crtc state to common header Maxime Ripard
2020-02-24  9:06 ` [PATCH 45/89] drm/vc4: crtc: Deal with different number of pixel per clock Maxime Ripard
2020-02-24  9:06 ` [PATCH 46/89] drm/vc4: crtc: Use a shared interrupt Maxime Ripard
2020-02-24  9:06 ` [PATCH 47/89] drm/vc4: crtc: Turn static const variable into a define Maxime Ripard
2020-02-24  9:06 ` [PATCH 48/89] drm/vc4: crtc: Move the cob allocation outside of bind Maxime Ripard
2020-02-24  9:06 ` [PATCH 49/89] drm/vc4: crtc: Rename HVS channel to output Maxime Ripard
2020-02-24  9:06 ` [PATCH 50/89] drm/vc4: crtc: Use local chan variable Maxime Ripard
2020-02-24  9:06 ` [PATCH 51/89] drm/vc4: crtc: Enable and disable the PV in atomic_enable / disable Maxime Ripard
2020-02-24  9:06 ` [PATCH 52/89] drm/vc4: crtc: Assign output to channel automatically Maxime Ripard
2020-02-24  9:06 ` [PATCH 53/89] drm/vc4: crtc: Add FIFO depth to vc4_crtc_data Maxime Ripard
2020-02-24  9:06 ` [PATCH 54/89] drm/vc4: crtc: Add function to compute FIFO level bits Maxime Ripard
2020-02-24  9:06 ` [PATCH 55/89] drm/vc4: crtc: Rename HDMI encoder type to HDMI0 Maxime Ripard
2020-02-24  9:06 ` [PATCH 56/89] drm/vc4: crtc: Add HDMI1 encoder type Maxime Ripard
2020-02-24  9:06 ` [PATCH 57/89] drm/vc4: crtc: Remove redundant call to drm_crtc_enable_color_mgmt Maxime Ripard
2020-02-24  9:07 ` [PATCH 58/89] drm/vc4: crtc: Disable color management for HVS5 Maxime Ripard
2020-02-24  9:07 ` [PATCH 59/89] dt-bindings: display: vc4: pv: Add BCM2711 pixel valves Maxime Ripard
2020-02-25 18:19   ` Rob Herring
2020-02-24  9:07 ` [PATCH 60/89] drm/vc4: crtc: Add BCM2711 pixelvalves Maxime Ripard
2020-02-24  9:07 ` [PATCH 61/89] drm/vc4: hdmi: Use debugfs private field Maxime Ripard
2020-02-24  9:07 ` [PATCH 62/89] drm/vc4: hdmi: Move structure to header Maxime Ripard
2020-02-24  9:07 ` [PATCH 63/89] drm/vc4: hdmi: rework connectors and encoders Maxime Ripard
2020-02-24  9:07 ` [PATCH 64/89] drm/vc4: hdmi: Remove DDC argument to connector_init Maxime Ripard
2020-02-24  9:07 ` [PATCH 65/89] drm/vc4: hdmi: Rename hdmi to vc4_hdmi Maxime Ripard
2020-02-24  9:07 ` [PATCH 66/89] drm/vc4: hdmi: Move accessors " Maxime Ripard
2020-02-24  9:07 ` [PATCH 67/89] drm/vc4: hdmi: Use local vc4_hdmi directly Maxime Ripard
2020-02-24  9:07 ` [PATCH 68/89] drm/vc4: hdmi: Add container_of macros for encoders and connectors Maxime Ripard
2020-02-24  9:07 ` [PATCH 69/89] drm/vc4: hdmi: Pass vc4_hdmi to CEC code Maxime Ripard
2020-02-24  9:07 ` [PATCH 70/89] drm/vc4: hdmi: Remove vc4_dev hdmi pointer Maxime Ripard
2020-02-24  9:07 ` [PATCH 71/89] drm/vc4: hdmi: Remove vc4_hdmi_connector Maxime Ripard
2020-02-24  9:07 ` [PATCH 72/89] drm/vc4: hdmi: Introduce resource init and variant Maxime Ripard
2020-02-24  9:07 ` [PATCH 73/89] drm/vc4: hdmi: Implement a register layout abstraction Maxime Ripard
2020-02-24  9:07 ` [PATCH 74/89] drm/vc4: hdmi: Add reset callback Maxime Ripard
2020-02-24  9:07 ` [PATCH 75/89] drm/vc4: hdmi: Add PHY init and disable function Maxime Ripard
2020-02-24  9:07 ` Maxime Ripard [this message]
2020-02-24  9:07 ` [PATCH 77/89] drm/vc4: hdmi: Add a CSC setup callback Maxime Ripard
2020-02-24  9:07 ` [PATCH 78/89] drm/vc4: hdmi: Add a set_timings callback Maxime Ripard
2020-02-24  9:07 ` [PATCH 79/89] drm/vc4: hdmi: Add HDMI ID Maxime Ripard
2020-02-24  9:07 ` [PATCH 80/89] drm/vc4: hdmi: Deal with multiple debugfs files Maxime Ripard
2020-02-24  9:07 ` [PATCH 81/89] drm/vc4: hdmi: Add an audio support flag Maxime Ripard
2020-02-24  9:07 ` [PATCH 82/89] drm/vc4: hdmi: Move CEC init to its own function Maxime Ripard
2020-02-24  9:07 ` [PATCH 83/89] drm/vc4: hdmi: Add CEC support flag Maxime Ripard
2020-02-24  9:07 ` [PATCH 84/89] drm/vc4: hdmi: Remove unused CEC_CLOCK_DIV define Maxime Ripard
2020-02-24  9:07 ` [PATCH 85/89] drm/vc4: hdmi: Rename drm_encoder pointer in mode_valid Maxime Ripard
2020-02-24  9:07 ` [PATCH 86/89] drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate Maxime Ripard
2020-03-16 12:54   ` Nicolas Saenz Julienne
2020-02-24  9:07 ` [PATCH 87/89] drm/vc4: hdmi: Support the BCM2711 HDMI controllers Maxime Ripard
2020-03-17 18:25   ` Daniel Rodriguez
2020-02-24  9:07 ` [PATCH 88/89] dt-bindings: display: vc4: hdmi: Add BCM2711 HDMI controllers bindings Maxime Ripard
2020-02-25 18:24   ` Rob Herring
2020-02-24  9:07 ` [PATCH 89/89] ARM: dts: bcm2711: Enable the display pipeline Maxime Ripard
2020-03-05 10:00 ` [PATCH 70/89] drm/vc4: hdmi: Remove vc4_dev hdmi pointer Jian-Hong Pan

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