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From: Philippe Cornu <philippe.cornu@st.com>
To: Rob Herring <robh+dt@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	"Russell King" <linux@armlinux.org.uk>,
	Mark Rutland <mark.rutland@arm.com>,
	"Archit Taneja" <architt@codeaurora.org>,
	Andrzej Hajda <a.hajda@samsung.com>,
	"Laurent Pinchart" <Laurent.pinchart@ideasonboard.com>,
	David Airlie <airlied@linux.ie>,
	Philippe Cornu <philippe.cornu@st.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Benjamin Gaignard <benjamin.gaignard@linaro.org>,
	Bhumika Goyal <bhumirks@gmail.com>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
Cc: Yannick Fertre <yannick.fertre@st.com>,
	Vincent Abriou <vincent.abriou@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	"Maxime Coquelin" <mcoquelin.stm32@gmail.com>,
	Gabriel Fernandez <gabriel.fernandez@st.com>,
	Ludovic Barre <ludovic.barre@st.com>,
	"Fabien Dessenne" <fabien.dessenne@st.com>,
	Mickael Reulier <mickael.reulier@st.com>
Subject: [PATCH v2] dt-bindings: display: stm32: add pixel clock mandatory property
Date: Fri, 12 Jan 2018 16:30:34 +0100	[thread overview]
Message-ID: <20180112153034.20353-1-philippe.cornu@st.com> (raw)

Add the DPI/RGB input pixel clock in mandatory properties
because it really offers a better preciseness for timing
computations.
Note: Fix also the DSI panel example where "ref" & "pclk"
clocks were swapped.

Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
---
Changes in v2: put new clock in last position (Rob Herring)

 Documentation/devicetree/bindings/display/st,stm32-ltdc.txt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
index 029252253ad4..942b7237ae87 100644
--- a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
+++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
@@ -29,6 +29,7 @@ Mandatory properties specific to STM32 DSI:
 - compatible: "st,stm32-dsi".
 - clock-names:
   - phy pll reference clock string name, must be "ref".
+  - DPI/RGB input pixel clock string name, must be "px_clk".
 - resets: see [5].
 - reset-names: see [5].
 
@@ -97,8 +98,9 @@ Example 2: DSI panel
 			#size-cells = <0>;
 			compatible = "st,stm32-dsi";
 			reg = <0x40016c00 0x800>;
-			clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>;
-			clock-names = "ref", "pclk";
+			clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>,
+				 <&rcc 1 CLK_LCD>;
+			clock-names = "pclk", "ref", "px_clk";
 			resets = <&rcc STM32F4_APB2_RESET(DSI)>;
 			reset-names = "apb";
 
-- 
2.15.1

WARNING: multiple messages have this Message-ID (diff)
From: Philippe Cornu <philippe.cornu@st.com>
To: Rob Herring <robh+dt@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
	Russell King <linux@armlinux.org.uk>,
	Mark Rutland <mark.rutland@arm.com>,
	Archit Taneja <architt@codeaurora.org>,
	Andrzej Hajda <a.hajda@samsung.com>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	David Airlie <airlied@linux.ie>,
	Philippe Cornu <philippe.cornu@st.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Benjamin Gaignard <benjamin.gaignard@linaro.org>,
	Bhumika Goyal <bhumirks@gmail.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Cc: Alexandre Torgue <alexandre.torgue@st.com>,
	Fabien Dessenne <fabien.dessenne@st.com>,
	Yannick Fertre <yannick.fertre@st.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Mickael Reulier <mickael.reulier@st.com>,
	Vincent Abriou <vincent.abriou@st.com>,
	Gabriel Fernandez <gabriel.fernandez@st.com>,
	Ludovic Barre <ludovic.barre@st.com>
Subject: [PATCH v2] dt-bindings: display: stm32: add pixel clock mandatory property
Date: Fri, 12 Jan 2018 16:30:34 +0100	[thread overview]
Message-ID: <20180112153034.20353-1-philippe.cornu@st.com> (raw)

Add the DPI/RGB input pixel clock in mandatory properties
because it really offers a better preciseness for timing
computations.
Note: Fix also the DSI panel example where "ref" & "pclk"
clocks were swapped.

Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
---
Changes in v2: put new clock in last position (Rob Herring)

 Documentation/devicetree/bindings/display/st,stm32-ltdc.txt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
index 029252253ad4..942b7237ae87 100644
--- a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
+++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
@@ -29,6 +29,7 @@ Mandatory properties specific to STM32 DSI:
 - compatible: "st,stm32-dsi".
 - clock-names:
   - phy pll reference clock string name, must be "ref".
+  - DPI/RGB input pixel clock string name, must be "px_clk".
 - resets: see [5].
 - reset-names: see [5].
 
@@ -97,8 +98,9 @@ Example 2: DSI panel
 			#size-cells = <0>;
 			compatible = "st,stm32-dsi";
 			reg = <0x40016c00 0x800>;
-			clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>;
-			clock-names = "ref", "pclk";
+			clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>,
+				 <&rcc 1 CLK_LCD>;
+			clock-names = "pclk", "ref", "px_clk";
 			resets = <&rcc STM32F4_APB2_RESET(DSI)>;
 			reset-names = "apb";
 
-- 
2.15.1

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WARNING: multiple messages have this Message-ID (diff)
From: philippe.cornu@st.com (Philippe Cornu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] dt-bindings: display: stm32: add pixel clock mandatory property
Date: Fri, 12 Jan 2018 16:30:34 +0100	[thread overview]
Message-ID: <20180112153034.20353-1-philippe.cornu@st.com> (raw)

Add the DPI/RGB input pixel clock in mandatory properties
because it really offers a better preciseness for timing
computations.
Note: Fix also the DSI panel example where "ref" & "pclk"
clocks were swapped.

Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
---
Changes in v2: put new clock in last position (Rob Herring)

 Documentation/devicetree/bindings/display/st,stm32-ltdc.txt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
index 029252253ad4..942b7237ae87 100644
--- a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
+++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
@@ -29,6 +29,7 @@ Mandatory properties specific to STM32 DSI:
 - compatible: "st,stm32-dsi".
 - clock-names:
   - phy pll reference clock string name, must be "ref".
+  - DPI/RGB input pixel clock string name, must be "px_clk".
 - resets: see [5].
 - reset-names: see [5].
 
@@ -97,8 +98,9 @@ Example 2: DSI panel
 			#size-cells = <0>;
 			compatible = "st,stm32-dsi";
 			reg = <0x40016c00 0x800>;
-			clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>;
-			clock-names = "ref", "pclk";
+			clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>,
+				 <&rcc 1 CLK_LCD>;
+			clock-names = "pclk", "ref", "px_clk";
 			resets = <&rcc STM32F4_APB2_RESET(DSI)>;
 			reset-names = "apb";
 
-- 
2.15.1

             reply	other threads:[~2018-01-12 15:32 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-12 15:30 Philippe Cornu [this message]
2018-01-12 15:30 ` [PATCH v2] dt-bindings: display: stm32: add pixel clock mandatory property Philippe Cornu
2018-01-12 15:30 ` Philippe Cornu
2018-01-19 22:43 ` Rob Herring
2018-01-19 22:43   ` Rob Herring
2018-01-19 22:43   ` Rob Herring
2018-01-21 21:15   ` Philippe CORNU
2018-01-21 21:15     ` Philippe CORNU
2018-01-21 21:15     ` Philippe CORNU

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