From: bgolaszewski@baylibre.com (Bartosz Golaszewski)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 5/5] ARM: dts: da850: specify the maximum pixel clock rate for tilcdc
Date: Tue, 13 Dec 2016 11:09:19 +0100 [thread overview]
Message-ID: <1481623759-12786-6-git-send-email-bgolaszewski@baylibre.com> (raw)
In-Reply-To: <1481623759-12786-1-git-send-email-bgolaszewski@baylibre.com>
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 <bgolaszewski@baylibre.com>
---
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
next prev parent reply other threads:[~2016-12-13 10:09 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-13 10:09 [PATCH v7 0/5] ARM: dts: da850: tilcdc related DT changes Bartosz Golaszewski
2016-12-13 10:09 ` [PATCH v7 1/5] ARM: dts: da850: rename the display node label Bartosz Golaszewski
2016-12-14 9:57 ` Tomi Valkeinen
2017-01-02 11:04 ` Sekhar Nori
2016-12-13 10:09 ` [PATCH v7 2/5] drm: bridge: add DT bindings for TI ths8135 Bartosz Golaszewski
2016-12-14 5:04 ` Archit Taneja
2016-12-13 10:09 ` [PATCH v7 3/5] drm: bridge: add support " Bartosz Golaszewski
2016-12-14 5:05 ` Archit Taneja
2017-01-02 11:08 ` Sekhar Nori
2017-01-03 5:26 ` Archit Taneja
2017-01-03 5:38 ` Sekhar Nori
2016-12-13 10:09 ` [PATCH v7 4/5] ARM: dts: da850-lcdk: add the vga-bridge node Bartosz Golaszewski
2016-12-14 9:54 ` Tomi Valkeinen
2017-01-02 11:16 ` Sekhar Nori
2016-12-13 10:09 ` Bartosz Golaszewski [this message]
2017-01-02 11:29 ` [PATCH v7 5/5] ARM: dts: da850: specify the maximum pixel clock rate for tilcdc Sekhar Nori
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