48 lines
1.4 KiB
Diff
48 lines
1.4 KiB
Diff
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From c077d9d717dc481a6a95f9ef2562ef6bda74fbdf Mon Sep 17 00:00:00 2001
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From: Douglas Anderson <dianders@chromium.org>
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Date: Thu, 2 May 2019 15:53:35 -0700
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Subject: [PATCH 46/54] ARM: dts: rockchip: Add unwedge pinctrl entries for
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dw_hdmi on rk3288
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This adds the "unwedge" pinctrl entries introduced by a recent dw_hdmi
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change that can unwedge the dw_hdmi i2c bus in some cases. It's
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expected that any boards using this would add:
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pinctrl-names = "default", "unwedge";
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pinctrl-0 = <&hdmi_ddc>;
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pinctrl-1 = <&hdmi_ddc_unwedge>;
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Note that this isn't added by default because some boards may choose
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to mux i2c5 for their DDC bus (if that is more tested for them).
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Signed-off-by: Douglas Anderson <dianders@chromium.org>
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Reviewed-by: Sean Paul <sean@poorly.run>
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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---
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arch/arm/boot/dts/rk3288.dtsi | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
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index 766d1cf51a5b..cc893e154fe5 100644
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--- a/arch/arm/boot/dts/rk3288.dtsi
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+++ b/arch/arm/boot/dts/rk3288.dtsi
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@@ -1547,6 +1547,15 @@
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rockchip,pins = <7 RK_PC3 2 &pcfg_pull_none>,
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<7 RK_PC4 2 &pcfg_pull_none>;
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};
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+
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+ hdmi_ddc_unwedge: hdmi-ddc-unwedge {
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+ rockchip,pins = <7 RK_PC3 RK_FUNC_GPIO &pcfg_output_low>,
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+ <7 RK_PC4 2 &pcfg_pull_none>;
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+ };
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+ };
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+
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+ pcfg_output_low: pcfg-output-low {
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+ output-low;
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};
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pcfg_pull_up: pcfg-pull-up {
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--
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2.11.0
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