path: root/arch/arm/boot/dts/imx6q-b450v3.dts
diff options
authorRobert Beckett <>2020-05-14 19:02:37 +0200
committerShawn Guo <>2020-05-20 10:48:02 +0800
commit665e7c73a7724a393b4ec92d1ae1e029925ef2b7 (patch)
treebbbabec08d82c269628a448040f0ab34eecce0d7 /arch/arm/boot/dts/imx6q-b450v3.dts
parent1248c86fd6391c63da947718bbd43686fa95185f (diff)
ARM: dts/imx6q-bx50v3: Set display interface clock parents
Avoid LDB and IPU DI clocks both using the same parent. LDB requires pasthrough clock to avoid breaking timing while IPU DI does not. Force IPU DI clocks to use IMX6QDL_CLK_PLL2_PFD0_352M as parent and LDB to use IMX6QDL_CLK_PLL5_VIDEO_DIV. This fixes an issue where attempting atomic modeset while using HDMI and display port at the same time causes LDB clock programming to destroy the programming of HDMI that was done during the same modeset. Cc: Signed-off-by: Robert Beckett <> [Use IMX6QDL_CLK_PLL2_PFD0_352M instead of IMX6QDL_CLK_PLL2_PFD2_396M originally chosen by Robert Beckett to avoid affecting eMMC clock by DRM atomic updates] Signed-off-by: Ian Ray <> [Squash Robert's and Ian's commits for bisectability, update patch description and add stable tag] Signed-off-by: Sebastian Reichel <> Signed-off-by: Shawn Guo <>
Diffstat (limited to 'arch/arm/boot/dts/imx6q-b450v3.dts')
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/arm/boot/dts/imx6q-b450v3.dts b/arch/arm/boot/dts/imx6q-b450v3.dts
index 95b8f2d71821..fb0980190aa0 100644
--- a/arch/arm/boot/dts/imx6q-b450v3.dts
+++ b/arch/arm/boot/dts/imx6q-b450v3.dts
@@ -65,13 +65,6 @@
-&clks {
- assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
- <&clks IMX6QDL_CLK_LDB_DI1_SEL>;
- assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>,
&ldb {
status = "okay";