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ARM: dts: rockchip: Add unwedge pinctrl entries for dw_hdmi on rk3288 

This adds the "unwedge" pinctrl entries introduced by a recent dw_hdmi
change that can unwedge the dw_hdmi i2c bus in some cases.  It's
expected that any boards using this would add:

  pinctrl-names = "default", "unwedge";
  pinctrl-0 = <&hdmi_ddc>;
  pinctrl-1 = <&hdmi_ddc_unwedge>;

Note that this isn't added by default because some boards may choose
to mux i2c5 for their DDC bus (if that is more tested for them).

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Douglas Anderson 2019-05-02 15:53:35 -07:00 committed by Heiko Stuebner
parent bf09924f21
commit c077d9d717
1 changed files with 9 additions and 0 deletions
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9
arch/arm/boot/dts/rk3288.dtsi
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@ -1547,6 +1547,15 @@
rockchip,pins = <7 RK_PC3 2 &pcfg_pull_none>,
<7 RK_PC4 2 &pcfg_pull_none>;
};
hdmi_ddc_unwedge: hdmi-ddc-unwedge {
rockchip,pins = <7 RK_PC3 RK_FUNC_GPIO &pcfg_output_low>,
<7 RK_PC4 2 &pcfg_pull_none>;
};
};
pcfg_output_low: pcfg-output-low {
output-low;
};
pcfg_pull_up: pcfg-pull-up {