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* [PATCH v2 0/7] Add support to the mmsys driver to be a reset controller
@ 2021-07-14 10:11 Enric Balletbo i Serra
  2021-07-14 10:11 ` [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location Enric Balletbo i Serra
                   ` (4 more replies)
  0 siblings, 5 replies; 12+ messages in thread
From: Enric Balletbo i Serra @ 2021-07-14 10:11 UTC (permalink / raw)
  To: linux-kernel
  Cc: chunkuang.hu, hsinyi, kernel, drinkcat, eizan, linux-mediatek,
	matthias.bgg, jitao.shi, Crystal Guo, Daniel Vetter,
	David Airlie, Fabien Parent, Guenter Roeck, Philipp Zabel,
	Rob Herring, Wim Van Sebroeck, devicetree, dri-devel,
	linux-arm-kernel, linux-watchdog

Dear all,

The following patchset is a reimplementation of the patch sent by Jitao
Shi [1] some time ago. As suggested by Chun-Kuang Hu, this time the
reset is done using the reset API, where the mmsys driver is the reset
controller and the mtk_dsi driver is the reset consumer.

Note that the first patch is kind of unrelated change, it's just a
cleanup but is needed if you want to apply all the following patches
cleanly.

This patchset is important in order to have the DSI panel working on some
kukui MT8183 Chromebooks (i.e Lenovo IdeaPad Duet). Without it, you just
get a black screen.

Best regards,
  Enric

[1] https://lore.kernel.org/linux-arm-kernel/20210420132614.150242-4-jitao.shi@mediatek.com/


Changes in v2:
- Fix build test ERROR Reported-by: kernel test robot <lkp@intel.com>
- Added a new patch to describe the dsi reset optional property.

Enric Balletbo i Serra (7):
  arm64: dts: mediatek: Move reset controller constants into common
    location
  dt-bindings: mediatek: Add #reset-cells to mmsys system controller
  dt-bindings: display: mediatek: add dsi reset optional property
  arm64: dts: mt8173: Add the mmsys reset bit to reset the dsi0
  arm64: dts: mt8183: Add the mmsys reset bit to reset the dsi0
  soc: mediatek: mmsys: Add reset controller support
  drm/mediatek: mtk_dsi: Reset the dsi0 hardware

 .../bindings/arm/mediatek/mediatek,mmsys.txt  |  2 +
 .../display/mediatek/mediatek,dsi.txt         |  6 ++
 arch/arm64/boot/dts/mediatek/mt8173.dtsi      |  2 +
 arch/arm64/boot/dts/mediatek/mt8183.dtsi      |  5 +-
 drivers/gpu/drm/mediatek/mtk_dsi.c            |  5 +-
 drivers/soc/mediatek/mtk-mmsys.c              | 69 +++++++++++++++++++
 drivers/soc/mediatek/mtk-mmsys.h              |  2 +
 drivers/watchdog/mtk_wdt.c                    |  6 +-
 .../mt2712-resets.h                           |  0
 include/dt-bindings/reset/mt8173-resets.h     |  2 +
 .../mt8183-resets.h                           |  3 +
 .../mt8192-resets.h                           |  0
 12 files changed, 96 insertions(+), 6 deletions(-)
 rename include/dt-bindings/{reset-controller => reset}/mt2712-resets.h (100%)
 rename include/dt-bindings/{reset-controller => reset}/mt8183-resets.h (98%)
 rename include/dt-bindings/{reset-controller => reset}/mt8192-resets.h (100%)

-- 
2.30.2


^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location
  2021-07-14 10:11 [PATCH v2 0/7] Add support to the mmsys driver to be a reset controller Enric Balletbo i Serra
@ 2021-07-14 10:11 ` Enric Balletbo i Serra
  2021-07-30  5:04   ` Guenter Roeck
  2021-08-06 15:43   ` Matthias Brugger
  2021-07-14 10:11 ` [PATCH v2 2/7] dt-bindings: mediatek: Add #reset-cells to mmsys system controller Enric Balletbo i Serra
                   ` (3 subsequent siblings)
  4 siblings, 2 replies; 12+ messages in thread
From: Enric Balletbo i Serra @ 2021-07-14 10:11 UTC (permalink / raw)
  To: linux-kernel
  Cc: chunkuang.hu, hsinyi, kernel, drinkcat, eizan, linux-mediatek,
	matthias.bgg, jitao.shi, Crystal Guo, Guenter Roeck,
	Philipp Zabel, Rob Herring, Wim Van Sebroeck, devicetree,
	linux-arm-kernel, linux-watchdog

The DT binding includes for reset controllers are located in
include/dt-bindings/reset/. Move the Mediatek reset constants in there.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

Changes in v2:
- Fix build test ERROR Reported-by: kernel test robot <lkp@intel.com>

 arch/arm64/boot/dts/mediatek/mt8183.dtsi                    | 2 +-
 drivers/watchdog/mtk_wdt.c                                  | 6 +++---
 .../dt-bindings/{reset-controller => reset}/mt2712-resets.h | 0
 .../dt-bindings/{reset-controller => reset}/mt8183-resets.h | 0
 .../dt-bindings/{reset-controller => reset}/mt8192-resets.h | 0
 5 files changed, 4 insertions(+), 4 deletions(-)
 rename include/dt-bindings/{reset-controller => reset}/mt2712-resets.h (100%)
 rename include/dt-bindings/{reset-controller => reset}/mt8183-resets.h (100%)
 rename include/dt-bindings/{reset-controller => reset}/mt8192-resets.h (100%)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 96473d88f391..4ef0b5b23047 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -11,7 +11,7 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/memory/mt8183-larb-port.h>
 #include <dt-bindings/power/mt8183-power.h>
-#include <dt-bindings/reset-controller/mt8183-resets.h>
+#include <dt-bindings/reset/mt8183-resets.h>
 #include <dt-bindings/phy/phy.h>
 #include <dt-bindings/thermal/thermal.h>
 #include "mt8183-pinfunc.h"
diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
index 16b6aff324a7..6986bc740465 100644
--- a/drivers/watchdog/mtk_wdt.c
+++ b/drivers/watchdog/mtk_wdt.c
@@ -9,9 +9,9 @@
  * Based on sunxi_wdt.c
  */
 
-#include <dt-bindings/reset-controller/mt2712-resets.h>
-#include <dt-bindings/reset-controller/mt8183-resets.h>
-#include <dt-bindings/reset-controller/mt8192-resets.h>
+#include <dt-bindings/reset/mt2712-resets.h>
+#include <dt-bindings/reset/mt8183-resets.h>
+#include <dt-bindings/reset/mt8192-resets.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/init.h>
diff --git a/include/dt-bindings/reset-controller/mt2712-resets.h b/include/dt-bindings/reset/mt2712-resets.h
similarity index 100%
rename from include/dt-bindings/reset-controller/mt2712-resets.h
rename to include/dt-bindings/reset/mt2712-resets.h
diff --git a/include/dt-bindings/reset-controller/mt8183-resets.h b/include/dt-bindings/reset/mt8183-resets.h
similarity index 100%
rename from include/dt-bindings/reset-controller/mt8183-resets.h
rename to include/dt-bindings/reset/mt8183-resets.h
diff --git a/include/dt-bindings/reset-controller/mt8192-resets.h b/include/dt-bindings/reset/mt8192-resets.h
similarity index 100%
rename from include/dt-bindings/reset-controller/mt8192-resets.h
rename to include/dt-bindings/reset/mt8192-resets.h
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* [PATCH v2 2/7] dt-bindings: mediatek: Add #reset-cells to mmsys system controller
  2021-07-14 10:11 [PATCH v2 0/7] Add support to the mmsys driver to be a reset controller Enric Balletbo i Serra
  2021-07-14 10:11 ` [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location Enric Balletbo i Serra
@ 2021-07-14 10:11 ` Enric Balletbo i Serra
  2021-07-16 17:42   ` Rob Herring
  2021-07-14 10:11 ` [PATCH v2 3/7] dt-bindings: display: mediatek: add dsi reset optional property Enric Balletbo i Serra
                   ` (2 subsequent siblings)
  4 siblings, 1 reply; 12+ messages in thread
From: Enric Balletbo i Serra @ 2021-07-14 10:11 UTC (permalink / raw)
  To: linux-kernel
  Cc: chunkuang.hu, hsinyi, kernel, drinkcat, eizan, linux-mediatek,
	matthias.bgg, jitao.shi, Fabien Parent, Rob Herring, devicetree,
	linux-arm-kernel

The mmsys system controller exposes a set of memory client resets and
needs to specify the #reset-cells property in order to advertise the
number of cells needed to describe each of the resets.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

(no changes since v1)

 .../devicetree/bindings/arm/mediatek/mediatek,mmsys.txt         | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt
index 78c50733985c..ce958446558e 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt
@@ -17,6 +17,7 @@ Required Properties:
 	- "mediatek,mt8173-mmsys", "syscon"
 	- "mediatek,mt8183-mmsys", "syscon"
 - #clock-cells: Must be 1
+- #reset-cells: Must be 1
 
 For the clock control, the mmsys controller uses the common clk binding from
 Documentation/devicetree/bindings/clock/clock-bindings.txt
@@ -28,4 +29,5 @@ mmsys: syscon@14000000 {
 	compatible = "mediatek,mt8173-mmsys", "syscon";
 	reg = <0 0x14000000 0 0x1000>;
 	#clock-cells = <1>;
+	#reset-cells = <1>;
 };
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* [PATCH v2 3/7] dt-bindings: display: mediatek: add dsi reset optional property
  2021-07-14 10:11 [PATCH v2 0/7] Add support to the mmsys driver to be a reset controller Enric Balletbo i Serra
  2021-07-14 10:11 ` [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location Enric Balletbo i Serra
  2021-07-14 10:11 ` [PATCH v2 2/7] dt-bindings: mediatek: Add #reset-cells to mmsys system controller Enric Balletbo i Serra
@ 2021-07-14 10:11 ` Enric Balletbo i Serra
  2021-07-16 17:55   ` Rob Herring
  2021-07-14 10:11 ` [PATCH v2 4/7] arm64: dts: mt8173: Add the mmsys reset bit to reset the dsi0 Enric Balletbo i Serra
  2021-07-14 10:11 ` [PATCH v2 5/7] arm64: dts: mt8183: " Enric Balletbo i Serra
  4 siblings, 1 reply; 12+ messages in thread
From: Enric Balletbo i Serra @ 2021-07-14 10:11 UTC (permalink / raw)
  To: linux-kernel
  Cc: chunkuang.hu, hsinyi, kernel, drinkcat, eizan, linux-mediatek,
	matthias.bgg, jitao.shi, Daniel Vetter, David Airlie,
	Philipp Zabel, Rob Herring, devicetree, dri-devel,
	linux-arm-kernel

Update device tree binding documentation for the dsi to add the optional
property to reset the dsi controller.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

Changes in v2:
- Added a new patch to describe the dsi reset optional property.

 .../devicetree/bindings/display/mediatek/mediatek,dsi.txt   | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
index 8238a86686be..3209b700ded6 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
@@ -19,6 +19,11 @@ Required properties:
   Documentation/devicetree/bindings/graph.txt. This port should be connected
   to the input port of an attached DSI panel or DSI-to-eDP encoder chip.
 
+Optional properties:
+- resets: list of phandle + reset specifier pair, as described in [1].
+
+[1] Documentation/devicetree/bindings/reset/reset.txt
+
 MIPI TX Configuration Module
 ============================
 
@@ -45,6 +50,7 @@ dsi0: dsi@1401b000 {
 	clocks = <&mmsys MM_DSI0_ENGINE>, <&mmsys MM_DSI0_DIGITAL>,
 		 <&mipi_tx0>;
 	clock-names = "engine", "digital", "hs";
+	resets = <&mmsys MT8173_MMSYS_SW0_RST_B_DISP_DSI0>;
 	phys = <&mipi_tx0>;
 	phy-names = "dphy";
 
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* [PATCH v2 4/7] arm64: dts: mt8173: Add the mmsys reset bit to reset the dsi0
  2021-07-14 10:11 [PATCH v2 0/7] Add support to the mmsys driver to be a reset controller Enric Balletbo i Serra
                   ` (2 preceding siblings ...)
  2021-07-14 10:11 ` [PATCH v2 3/7] dt-bindings: display: mediatek: add dsi reset optional property Enric Balletbo i Serra
@ 2021-07-14 10:11 ` Enric Balletbo i Serra
  2021-07-16 17:56   ` Rob Herring
  2021-07-14 10:11 ` [PATCH v2 5/7] arm64: dts: mt8183: " Enric Balletbo i Serra
  4 siblings, 1 reply; 12+ messages in thread
From: Enric Balletbo i Serra @ 2021-07-14 10:11 UTC (permalink / raw)
  To: linux-kernel
  Cc: chunkuang.hu, hsinyi, kernel, drinkcat, eizan, linux-mediatek,
	matthias.bgg, jitao.shi, Philipp Zabel, Rob Herring, devicetree,
	linux-arm-kernel

Reset the DSI hardware is needed to prevent different settings between
the bootloader and the kernel.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

(no changes since v1)

 arch/arm64/boot/dts/mediatek/mt8173.dtsi  | 2 ++
 include/dt-bindings/reset/mt8173-resets.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index a3de6374d495..2ac77d47bf81 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -1036,6 +1036,7 @@ mmsys: syscon@14000000 {
 			assigned-clocks = <&topckgen CLK_TOP_MM_SEL>;
 			assigned-clock-rates = <400000000>;
 			#clock-cells = <1>;
+			#reset-cells = <1>;
 			mboxes = <&gce 0 CMDQ_THR_PRIO_HIGHEST>,
 				 <&gce 1 CMDQ_THR_PRIO_HIGHEST>;
 			mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0 0x1000>;
@@ -1261,6 +1262,7 @@ dsi0: dsi@1401b000 {
 				 <&mmsys CLK_MM_DSI0_DIGITAL>,
 				 <&mipi_tx0>;
 			clock-names = "engine", "digital", "hs";
+			resets = <&mmsys MT8173_MMSYS_SW0_RST_B_DISP_DSI0>;
 			phys = <&mipi_tx0>;
 			phy-names = "dphy";
 			status = "disabled";
diff --git a/include/dt-bindings/reset/mt8173-resets.h b/include/dt-bindings/reset/mt8173-resets.h
index ba8636eda5ae..6a60c7cecc4c 100644
--- a/include/dt-bindings/reset/mt8173-resets.h
+++ b/include/dt-bindings/reset/mt8173-resets.h
@@ -27,6 +27,8 @@
 #define MT8173_INFRA_GCE_FAXI_RST       40
 #define MT8173_INFRA_MMIOMMURST         47
 
+/* MMSYS resets */
+#define MT8173_MMSYS_SW0_RST_B_DISP_DSI0	25
 
 /*  PERICFG resets */
 #define MT8173_PERI_UART0_SW_RST        0
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* [PATCH v2 5/7] arm64: dts: mt8183: Add the mmsys reset bit to reset the dsi0
  2021-07-14 10:11 [PATCH v2 0/7] Add support to the mmsys driver to be a reset controller Enric Balletbo i Serra
                   ` (3 preceding siblings ...)
  2021-07-14 10:11 ` [PATCH v2 4/7] arm64: dts: mt8173: Add the mmsys reset bit to reset the dsi0 Enric Balletbo i Serra
@ 2021-07-14 10:11 ` Enric Balletbo i Serra
  2021-07-16 17:57   ` Rob Herring
  4 siblings, 1 reply; 12+ messages in thread
From: Enric Balletbo i Serra @ 2021-07-14 10:11 UTC (permalink / raw)
  To: linux-kernel
  Cc: chunkuang.hu, hsinyi, kernel, drinkcat, eizan, linux-mediatek,
	matthias.bgg, jitao.shi, Philipp Zabel, Rob Herring, devicetree,
	linux-arm-kernel

Reset the DSI hardware is needed to prevent different settings between
the bootloader and the kernel.

While here, also remove the undocumented and also not used
'mediatek,syscon-dsi' property.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

(no changes since v1)

 arch/arm64/boot/dts/mediatek/mt8183.dtsi  | 3 ++-
 include/dt-bindings/reset/mt8183-resets.h | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 4ef0b5b23047..7ae108f8ba89 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -1251,6 +1251,7 @@ mmsys: syscon@14000000 {
 			compatible = "mediatek,mt8183-mmsys", "syscon";
 			reg = <0 0x14000000 0 0x1000>;
 			#clock-cells = <1>;
+			#reset-cells = <1>;
 			mboxes = <&gce 0 CMDQ_THR_PRIO_HIGHEST>,
 				 <&gce 1 CMDQ_THR_PRIO_HIGHEST>;
 			mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0 0x1000>;
@@ -1365,11 +1366,11 @@ dsi0: dsi@14014000 {
 			reg = <0 0x14014000 0 0x1000>;
 			interrupts = <GIC_SPI 236 IRQ_TYPE_LEVEL_LOW>;
 			power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
-			mediatek,syscon-dsi = <&mmsys 0x140>;
 			clocks = <&mmsys CLK_MM_DSI0_MM>,
 				 <&mmsys CLK_MM_DSI0_IF>,
 				 <&mipi_tx0>;
 			clock-names = "engine", "digital", "hs";
+			resets = <&mmsys MT8183_MMSYS_SW0_RST_B_DISP_DSI0>;
 			phys = <&mipi_tx0>;
 			phy-names = "dphy";
 		};
diff --git a/include/dt-bindings/reset/mt8183-resets.h b/include/dt-bindings/reset/mt8183-resets.h
index a1bbd41e0d12..48c5d2de0a38 100644
--- a/include/dt-bindings/reset/mt8183-resets.h
+++ b/include/dt-bindings/reset/mt8183-resets.h
@@ -80,6 +80,9 @@
 
 #define MT8183_INFRACFG_SW_RST_NUM				128
 
+/* MMSYS resets */
+#define MT8183_MMSYS_SW0_RST_B_DISP_DSI0			25
+
 #define MT8183_TOPRGU_MM_SW_RST					1
 #define MT8183_TOPRGU_MFG_SW_RST				2
 #define MT8183_TOPRGU_VENC_SW_RST				3
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* Re: [PATCH v2 2/7] dt-bindings: mediatek: Add #reset-cells to mmsys system controller
  2021-07-14 10:11 ` [PATCH v2 2/7] dt-bindings: mediatek: Add #reset-cells to mmsys system controller Enric Balletbo i Serra
@ 2021-07-16 17:42   ` Rob Herring
  0 siblings, 0 replies; 12+ messages in thread
From: Rob Herring @ 2021-07-16 17:42 UTC (permalink / raw)
  To: Enric Balletbo i Serra
  Cc: linux-kernel, chunkuang.hu, hsinyi, kernel, drinkcat, eizan,
	linux-mediatek, matthias.bgg, jitao.shi, Fabien Parent,
	devicetree, linux-arm-kernel

On Wed, Jul 14, 2021 at 12:11:36PM +0200, Enric Balletbo i Serra wrote:
> The mmsys system controller exposes a set of memory client resets and
> needs to specify the #reset-cells property in order to advertise the
> number of cells needed to describe each of the resets.
> 
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> ---
> 
> (no changes since v1)
> 
>  .../devicetree/bindings/arm/mediatek/mediatek,mmsys.txt         | 2 ++
>  1 file changed, 2 insertions(+)

This will conflict. There's already multiple patches converting this to 
schema[1][2].

Rob

[1] https://lore.kernel.org/lkml/20210519161847.3747352-1-fparent@baylibre.com/
[2] https://lore.kernel.org/lkml/CAC=S1nhi0rLpQznvUP1FVNtEDzdffFG_aMO7j-w4fHBY8ceJnw@mail.gmail.com/

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v2 3/7] dt-bindings: display: mediatek: add dsi reset optional property
  2021-07-14 10:11 ` [PATCH v2 3/7] dt-bindings: display: mediatek: add dsi reset optional property Enric Balletbo i Serra
@ 2021-07-16 17:55   ` Rob Herring
  0 siblings, 0 replies; 12+ messages in thread
From: Rob Herring @ 2021-07-16 17:55 UTC (permalink / raw)
  To: Enric Balletbo i Serra
  Cc: David Airlie, dri-devel, Daniel Vetter, linux-arm-kernel,
	linux-mediatek, chunkuang.hu, devicetree, kernel, drinkcat,
	matthias.bgg, jitao.shi, Rob Herring, hsinyi, linux-kernel,
	eizan, Philipp Zabel

On Wed, 14 Jul 2021 12:11:37 +0200, Enric Balletbo i Serra wrote:
> Update device tree binding documentation for the dsi to add the optional
> property to reset the dsi controller.
> 
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> ---
> 
> Changes in v2:
> - Added a new patch to describe the dsi reset optional property.
> 
>  .../devicetree/bindings/display/mediatek/mediatek,dsi.txt   | 6 ++++++
>  1 file changed, 6 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v2 4/7] arm64: dts: mt8173: Add the mmsys reset bit to reset the dsi0
  2021-07-14 10:11 ` [PATCH v2 4/7] arm64: dts: mt8173: Add the mmsys reset bit to reset the dsi0 Enric Balletbo i Serra
@ 2021-07-16 17:56   ` Rob Herring
  0 siblings, 0 replies; 12+ messages in thread
From: Rob Herring @ 2021-07-16 17:56 UTC (permalink / raw)
  To: Enric Balletbo i Serra
  Cc: linux-kernel, Rob Herring, drinkcat, linux-arm-kernel,
	matthias.bgg, kernel, chunkuang.hu, Philipp Zabel, hsinyi,
	linux-mediatek, devicetree, eizan, jitao.shi

On Wed, 14 Jul 2021 12:11:38 +0200, Enric Balletbo i Serra wrote:
> Reset the DSI hardware is needed to prevent different settings between
> the bootloader and the kernel.
> 
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> ---
> 
> (no changes since v1)
> 
>  arch/arm64/boot/dts/mediatek/mt8173.dtsi  | 2 ++
>  include/dt-bindings/reset/mt8173-resets.h | 2 ++
>  2 files changed, 4 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v2 5/7] arm64: dts: mt8183: Add the mmsys reset bit to reset the dsi0
  2021-07-14 10:11 ` [PATCH v2 5/7] arm64: dts: mt8183: " Enric Balletbo i Serra
@ 2021-07-16 17:57   ` Rob Herring
  0 siblings, 0 replies; 12+ messages in thread
From: Rob Herring @ 2021-07-16 17:57 UTC (permalink / raw)
  To: Enric Balletbo i Serra
  Cc: hsinyi, drinkcat, linux-kernel, Philipp Zabel, Rob Herring,
	eizan, linux-mediatek, jitao.shi, chunkuang.hu, devicetree,
	matthias.bgg, kernel, linux-arm-kernel

On Wed, 14 Jul 2021 12:11:39 +0200, Enric Balletbo i Serra wrote:
> Reset the DSI hardware is needed to prevent different settings between
> the bootloader and the kernel.
> 
> While here, also remove the undocumented and also not used
> 'mediatek,syscon-dsi' property.
> 
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> ---
> 
> (no changes since v1)
> 
>  arch/arm64/boot/dts/mediatek/mt8183.dtsi  | 3 ++-
>  include/dt-bindings/reset/mt8183-resets.h | 3 +++
>  2 files changed, 5 insertions(+), 1 deletion(-)
> 

Acked-by: Rob Herring <robh@kernel.org>

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location
  2021-07-14 10:11 ` [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location Enric Balletbo i Serra
@ 2021-07-30  5:04   ` Guenter Roeck
  2021-08-06 15:43   ` Matthias Brugger
  1 sibling, 0 replies; 12+ messages in thread
From: Guenter Roeck @ 2021-07-30  5:04 UTC (permalink / raw)
  To: Enric Balletbo i Serra
  Cc: linux-kernel, chunkuang.hu, hsinyi, kernel, drinkcat, eizan,
	linux-mediatek, matthias.bgg, jitao.shi, Crystal Guo,
	Philipp Zabel, Rob Herring, Wim Van Sebroeck, devicetree,
	linux-arm-kernel, linux-watchdog

On Wed, Jul 14, 2021 at 12:11:35PM +0200, Enric Balletbo i Serra wrote:
> The DT binding includes for reset controllers are located in
> include/dt-bindings/reset/. Move the Mediatek reset constants in there.
> 
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>

For the watchdog part:

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
> 
> Changes in v2:
> - Fix build test ERROR Reported-by: kernel test robot <lkp@intel.com>
> 
>  arch/arm64/boot/dts/mediatek/mt8183.dtsi                    | 2 +-
>  drivers/watchdog/mtk_wdt.c                                  | 6 +++---
>  .../dt-bindings/{reset-controller => reset}/mt2712-resets.h | 0
>  .../dt-bindings/{reset-controller => reset}/mt8183-resets.h | 0
>  .../dt-bindings/{reset-controller => reset}/mt8192-resets.h | 0
>  5 files changed, 4 insertions(+), 4 deletions(-)
>  rename include/dt-bindings/{reset-controller => reset}/mt2712-resets.h (100%)
>  rename include/dt-bindings/{reset-controller => reset}/mt8183-resets.h (100%)
>  rename include/dt-bindings/{reset-controller => reset}/mt8192-resets.h (100%)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index 96473d88f391..4ef0b5b23047 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -11,7 +11,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/memory/mt8183-larb-port.h>
>  #include <dt-bindings/power/mt8183-power.h>
> -#include <dt-bindings/reset-controller/mt8183-resets.h>
> +#include <dt-bindings/reset/mt8183-resets.h>
>  #include <dt-bindings/phy/phy.h>
>  #include <dt-bindings/thermal/thermal.h>
>  #include "mt8183-pinfunc.h"
> diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
> index 16b6aff324a7..6986bc740465 100644
> --- a/drivers/watchdog/mtk_wdt.c
> +++ b/drivers/watchdog/mtk_wdt.c
> @@ -9,9 +9,9 @@
>   * Based on sunxi_wdt.c
>   */
>  
> -#include <dt-bindings/reset-controller/mt2712-resets.h>
> -#include <dt-bindings/reset-controller/mt8183-resets.h>
> -#include <dt-bindings/reset-controller/mt8192-resets.h>
> +#include <dt-bindings/reset/mt2712-resets.h>
> +#include <dt-bindings/reset/mt8183-resets.h>
> +#include <dt-bindings/reset/mt8192-resets.h>
>  #include <linux/delay.h>
>  #include <linux/err.h>
>  #include <linux/init.h>
> diff --git a/include/dt-bindings/reset-controller/mt2712-resets.h b/include/dt-bindings/reset/mt2712-resets.h
> similarity index 100%
> rename from include/dt-bindings/reset-controller/mt2712-resets.h
> rename to include/dt-bindings/reset/mt2712-resets.h
> diff --git a/include/dt-bindings/reset-controller/mt8183-resets.h b/include/dt-bindings/reset/mt8183-resets.h
> similarity index 100%
> rename from include/dt-bindings/reset-controller/mt8183-resets.h
> rename to include/dt-bindings/reset/mt8183-resets.h
> diff --git a/include/dt-bindings/reset-controller/mt8192-resets.h b/include/dt-bindings/reset/mt8192-resets.h
> similarity index 100%
> rename from include/dt-bindings/reset-controller/mt8192-resets.h
> rename to include/dt-bindings/reset/mt8192-resets.h

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location
  2021-07-14 10:11 ` [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location Enric Balletbo i Serra
  2021-07-30  5:04   ` Guenter Roeck
@ 2021-08-06 15:43   ` Matthias Brugger
  1 sibling, 0 replies; 12+ messages in thread
From: Matthias Brugger @ 2021-08-06 15:43 UTC (permalink / raw)
  To: Enric Balletbo i Serra, linux-kernel
  Cc: chunkuang.hu, hsinyi, kernel, drinkcat, eizan, linux-mediatek,
	jitao.shi, Crystal Guo, Guenter Roeck, Philipp Zabel,
	Rob Herring, Wim Van Sebroeck, devicetree, linux-arm-kernel,
	linux-watchdog



On 14/07/2021 12:11, Enric Balletbo i Serra wrote:
> The DT binding includes for reset controllers are located in
> include/dt-bindings/reset/. Move the Mediatek reset constants in there.
> 
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>

Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>

> ---
> 
> Changes in v2:
> - Fix build test ERROR Reported-by: kernel test robot <lkp@intel.com>
> 
>  arch/arm64/boot/dts/mediatek/mt8183.dtsi                    | 2 +-
>  drivers/watchdog/mtk_wdt.c                                  | 6 +++---
>  .../dt-bindings/{reset-controller => reset}/mt2712-resets.h | 0
>  .../dt-bindings/{reset-controller => reset}/mt8183-resets.h | 0
>  .../dt-bindings/{reset-controller => reset}/mt8192-resets.h | 0
>  5 files changed, 4 insertions(+), 4 deletions(-)
>  rename include/dt-bindings/{reset-controller => reset}/mt2712-resets.h (100%)
>  rename include/dt-bindings/{reset-controller => reset}/mt8183-resets.h (100%)
>  rename include/dt-bindings/{reset-controller => reset}/mt8192-resets.h (100%)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index 96473d88f391..4ef0b5b23047 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -11,7 +11,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/memory/mt8183-larb-port.h>
>  #include <dt-bindings/power/mt8183-power.h>
> -#include <dt-bindings/reset-controller/mt8183-resets.h>
> +#include <dt-bindings/reset/mt8183-resets.h>
>  #include <dt-bindings/phy/phy.h>
>  #include <dt-bindings/thermal/thermal.h>
>  #include "mt8183-pinfunc.h"
> diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
> index 16b6aff324a7..6986bc740465 100644
> --- a/drivers/watchdog/mtk_wdt.c
> +++ b/drivers/watchdog/mtk_wdt.c
> @@ -9,9 +9,9 @@
>   * Based on sunxi_wdt.c
>   */
>  
> -#include <dt-bindings/reset-controller/mt2712-resets.h>
> -#include <dt-bindings/reset-controller/mt8183-resets.h>
> -#include <dt-bindings/reset-controller/mt8192-resets.h>
> +#include <dt-bindings/reset/mt2712-resets.h>
> +#include <dt-bindings/reset/mt8183-resets.h>
> +#include <dt-bindings/reset/mt8192-resets.h>
>  #include <linux/delay.h>
>  #include <linux/err.h>
>  #include <linux/init.h>
> diff --git a/include/dt-bindings/reset-controller/mt2712-resets.h b/include/dt-bindings/reset/mt2712-resets.h
> similarity index 100%
> rename from include/dt-bindings/reset-controller/mt2712-resets.h
> rename to include/dt-bindings/reset/mt2712-resets.h
> diff --git a/include/dt-bindings/reset-controller/mt8183-resets.h b/include/dt-bindings/reset/mt8183-resets.h
> similarity index 100%
> rename from include/dt-bindings/reset-controller/mt8183-resets.h
> rename to include/dt-bindings/reset/mt8183-resets.h
> diff --git a/include/dt-bindings/reset-controller/mt8192-resets.h b/include/dt-bindings/reset/mt8192-resets.h
> similarity index 100%
> rename from include/dt-bindings/reset-controller/mt8192-resets.h
> rename to include/dt-bindings/reset/mt8192-resets.h
> 

^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2021-08-06 15:44 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-14 10:11 [PATCH v2 0/7] Add support to the mmsys driver to be a reset controller Enric Balletbo i Serra
2021-07-14 10:11 ` [PATCH v2 1/7] arm64: dts: mediatek: Move reset controller constants into common location Enric Balletbo i Serra
2021-07-30  5:04   ` Guenter Roeck
2021-08-06 15:43   ` Matthias Brugger
2021-07-14 10:11 ` [PATCH v2 2/7] dt-bindings: mediatek: Add #reset-cells to mmsys system controller Enric Balletbo i Serra
2021-07-16 17:42   ` Rob Herring
2021-07-14 10:11 ` [PATCH v2 3/7] dt-bindings: display: mediatek: add dsi reset optional property Enric Balletbo i Serra
2021-07-16 17:55   ` Rob Herring
2021-07-14 10:11 ` [PATCH v2 4/7] arm64: dts: mt8173: Add the mmsys reset bit to reset the dsi0 Enric Balletbo i Serra
2021-07-16 17:56   ` Rob Herring
2021-07-14 10:11 ` [PATCH v2 5/7] arm64: dts: mt8183: " Enric Balletbo i Serra
2021-07-16 17:57   ` Rob Herring

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