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
next reply other threads:[~2018-01-12 15:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-12 15:30 Philippe Cornu [this message]
2018-01-19 22:43 ` [PATCH v2] dt-bindings: display: stm32: add pixel clock mandatory property Rob Herring
2018-01-21 21:15 ` Philippe CORNU
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