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] dt-bindings: display: stm32: add pixel clock mandatory property
Date: Thu, 26 Oct 2017 18:12:36 +0200 [thread overview]
Message-ID: <1509034356-23885-1-git-send-email-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>
---
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 0292522..99823fb 100644
--- a/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
+++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
@@ -28,6 +28,7 @@ Mandatory properties specific to STM32 DSI:
- #size-cells: Should be <0>.
- compatible: "st,stm32-dsi".
- clock-names:
+ - DPI/RGB input pixel clock string name, must be "px_clk".
- phy pll reference clock string name, must be "ref".
- 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>, <&rcc 1 CLK_LCD>,
+ <&clk_hse>;
+ clock-names = "pclk", "px_clk", "ref";
resets = <&rcc STM32F4_APB2_RESET(DSI)>;
reset-names = "apb";
--
1.9.1
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next reply other threads:[~2017-10-26 16:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-26 16:12 Philippe Cornu [this message]
2017-10-27 14:38 ` [PATCH] dt-bindings: display: stm32: add pixel clock mandatory property Rob Herring
2017-10-27 14:52 ` Philippe CORNU
2018-01-21 21:13 Philippe Cornu
2018-01-22 15:38 Philippe Cornu
2018-01-25 16:08 ` Philippe CORNU
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