diff options
Diffstat (limited to 'target/linux/imx6/patches-4.4/037-ARM-dts-imx-ventana-Allow-HDMI-and-LVDS-to-work-simultaneously.patch')
| -rw-r--r-- | target/linux/imx6/patches-4.4/037-ARM-dts-imx-ventana-Allow-HDMI-and-LVDS-to-work-simultaneously.patch | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/target/linux/imx6/patches-4.4/037-ARM-dts-imx-ventana-Allow-HDMI-and-LVDS-to-work-simultaneously.patch b/target/linux/imx6/patches-4.4/037-ARM-dts-imx-ventana-Allow-HDMI-and-LVDS-to-work-simultaneously.patch new file mode 100644 index 0000000..c861e38 --- /dev/null +++ b/target/linux/imx6/patches-4.4/037-ARM-dts-imx-ventana-Allow-HDMI-and-LVDS-to-work-simultaneously.patch @@ -0,0 +1,70 @@ +From d86b202436b6f3111c4c37b8701daa0764d2ca55 Mon Sep 17 00:00:00 2001 +From: Tim Harvey <tharvey@gateworks.com> +Date: Thu, 5 Nov 2015 11:10:00 -0800 +Subject: [PATCH 3/3] ARM: dts: imx: ventana: Allow HDMI and LVDS to work + simultaneously + +Currently it is not possible to have HDMI and LVDS working simultaneously, +because both ports try to use PLL5. + +Move the LVDS clock parent to PLL3_USB_OTG, so that HDMI and LVDS can be +driven from independent sources. + +With this change the LDB pixel clock goes to 68.57 MHz, which is still +within the valid range for the displays supported by the Ventana boards. + +Signed-off-by: Tim Harvey <tharvey@gateworks.com> +--- + arch/arm/boot/dts/imx6qdl-gw52xx.dtsi | 7 +++++++ + arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 7 +++++++ + arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 7 +++++++ + 3 files changed, 21 insertions(+) + +--- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi ++++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi +@@ -151,6 +151,13 @@ + status = "okay"; + }; + ++&clks { ++ assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>, ++ <&clks IMX6QDL_CLK_LDB_DI1_SEL>; ++ assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>, ++ <&clks IMX6QDL_CLK_PLL3_USB_OTG>; ++}; ++ + &fec { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_enet>; +--- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi ++++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi +@@ -152,6 +152,13 @@ + status = "okay"; + }; + ++&clks { ++ assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>, ++ <&clks IMX6QDL_CLK_LDB_DI1_SEL>; ++ assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>, ++ <&clks IMX6QDL_CLK_PLL3_USB_OTG>; ++}; ++ + &fec { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_enet>; +--- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi ++++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi +@@ -142,6 +142,13 @@ + status = "okay"; + }; + ++&clks { ++ assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>, ++ <&clks IMX6QDL_CLK_LDB_DI1_SEL>; ++ assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>, ++ <&clks IMX6QDL_CLK_PLL3_USB_OTG>; ++}; ++ + &fec { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_enet>; |