Thread (16 messages) 16 messages, 4 authors, 2017-01-03

[PATCH v7 5/5] ARM: dts: da850: specify the maximum pixel clock rate for tilcdc

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STALE3573d

From: Bartosz Golaszewski <hidden>
Date: 2016-12-13 10:09:44
Also in: dri-devel, linux-devicetree, lkml
Subsystem: the rest · Maintainer: Linus Torvalds

Revision v7 of 2 in this series.

Revisions (2)
  1. v6 [diff vs current]
  2. v7 current
At maximum CPU frequency of 300 MHz the maximum pixel clock frequency
is 37.5 MHz[1]. We must filter out any mode for which the calculated
pixel clock rate would exceed this value.

Specify the max-pixelclock property for the display node for
da850-lcdk.

[1] http://processors.wiki.ti.com/index.php/OMAP-L1x/C674x/AM1x_LCD_Controller_(LCDC)_Throughput_and_Optimization_Techniques

Signed-off-by: Bartosz Golaszewski <redacted>
---
 arch/arm/boot/dts/da850.dtsi | 1 +
 1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 6b0ef3d..58b1566 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -462,6 +462,7 @@
 			compatible = "ti,da850-tilcdc";
 			reg = <0x213000 0x1000>;
 			interrupts = <52>;
+			max-pixelclock = <37500>;
 			status = "disabled";
 		};
 	};
-- 
2.9.3
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