From: Philippe Cornu <philippe.cornu-qxv4g6HH51o@public.gmane.org>
To: Yannick Fertre <yannick.fertre-qxv4g6HH51o@public.gmane.org>,
Philippe Cornu <philippe.cornu-qxv4g6HH51o@public.gmane.org>,
Benjamin Gaignard
<benjamin.gaignard-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Vincent Abriou <vincent.abriou-qxv4g6HH51o@public.gmane.org>,
David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Maxime Coquelin
<mcoquelin.stm32-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Alexandre Torgue <alexandre.torgue-qxv4g6HH51o@public.gmane.org>,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Mickael Reulier <mickael.reulier-qxv4g6HH51o@public.gmane.org>,
Gabriel Fernandez
<gabriel.fernandez-qxv4g6HH51o@public.gmane.org>,
Ludovic Barre <ludovic.barre-qxv4g6HH51o@public.gmane.org>
Subject: [PATCH] dt-bindings: display: stm32: add pixel clock mandatory property
Date: Sun, 21 Jan 2018 22:13:15 +0100 [thread overview]
Message-ID: <20180121211315.31562-1-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.
Signed-off-by: Philippe Cornu <philippe.cornu-qxv4g6HH51o@public.gmane.org>
---
Please apply "dt-bindings: display: stm32: correct clock-names
in dsi panel example" before this patch.
Changes in v3: remove the note regarding swapped clock names
(now in a separate patch).
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 3eb1b48b47dd..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 = "pclk", "ref";
+ 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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next reply other threads:[~2018-01-21 21:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-21 21:13 Philippe Cornu [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-01-22 15:38 [PATCH] dt-bindings: display: stm32: add pixel clock mandatory property Philippe Cornu
2018-01-25 16:08 ` Philippe CORNU
2017-10-26 16:12 Philippe Cornu
2017-10-27 14:38 ` Rob Herring
2017-10-27 14:52 ` Philippe CORNU
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