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imx6: add Vetnana LVDS support

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These patches have been submitted to upstream Linux and are pending acceptance.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

SVN-Revision: 47511
This commit is contained in:
Luka Perkov
2015-11-18 22:06:54 +00:00
parent 7b931ba95c
commit baa8b933ec
3 changed files with 150 additions and 0 deletions
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31
target/linux/imx6/patches-4.1/035-ARM-dts-imx-ventana-set-GW54xx-PMIC-swbst-regulator-.patch Normal file
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@@ -0,0 +1,31 @@
From 57b82d9e79d77442bae3d2c13b98ceccb39fe5e2 Mon Sep 17 00:00:00 2001
From: Tim Harvey <tharvey@gateworks.com>
Date: Thu, 5 Nov 2015 10:49:31 -0800
Subject: [PATCH 1/3] ARM: dts: imx: ventana: set GW54xx PMIC swbst regulator
as always-on
The GW54xx PMIC swbst regulator is used for LVDS power, CANbus xceiver
and HDMI DDC and is enabled by the bootloader. Set the regulator to
always-on so that Linux doesn't turn it off thinking its not needed.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
index 31d86f7..2108d1c 100644
--- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
@@ -265,6 +265,8 @@
swbst_reg: swbst {
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5150000>;
+ regulator-boot-on;
+ regulator-always-on;
};
snvs_reg: vsnvs {
--
1.9.1

40
target/linux/imx6/patches-4.1/036-ARM-dts-imx-ventana-fix-GW53xx-GW54xx-lvds-channel.patch Normal file
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@@ -0,0 +1,40 @@
From 473d0353979db3673a7aa365265ba9b00decd414 Mon Sep 17 00:00:00 2001
From: Tim Harvey <tharvey@gateworks.com>
Date: Thu, 5 Nov 2015 10:52:53 -0800
Subject: [PATCH 2/3] ARM: dts: imx: ventana: fix GW53xx/GW54xx lvds channel
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
arch/arm/boot/dts/imx6qdl-gw53xx.dtsi | 2 +-
arch/arm/boot/dts/imx6qdl-gw54xx.dtsi | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
index 7c51839..5172de0 100644
--- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
@@ -247,7 +247,7 @@
&ldb {
status = "okay";
- lvds-channel@1 {
+ lvds-channel@0 {
fsl,data-mapping = "spwg";
fsl,data-width = <18>;
status = "okay";
diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
index 2108d1c..77a56be 100644
--- a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
@@ -343,7 +343,7 @@
&ldb {
status = "okay";
- lvds-channel@1 {
+ lvds-channel@0 {
fsl,data-mapping = "spwg";
fsl,data-width = <18>;
status = "okay";
--
1.9.1

79
target/linux/imx6/patches-4.1/037-ARM-dts-imx-ventana-fix-GW53xx-GW54xx-lvds-channel.patch Normal file
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@@ -0,0 +1,79 @@
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(+)
diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi
index 1b66328..9709728 100644
--- 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>;
diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi
index 5172de0..dc1cd13 100644
--- 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>;
diff --git a/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw54xx.dtsi
index 77a56be..7ef9fbe 100644
--- 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>;
--
1.9.1