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ARM: dt: tegra: ventana: define pinmux for ddc 

Tegra 2's I2C2 controller can be routed to either the PTA
or DDC pin group on Ventana. So:
- Remove the HDMI function definition of pta pingroup
- Define child i2c adapters(ddc & pta) for I2C2 controller

Signed-off-by: Mark Zhang <markz@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
hifive-unleashed-5.1
Mark Zhang 2012-10-25 14:52:30 +08:00 committed by Stephen Warren
parent 6fb11131ef
commit cf63346401
1 changed files with 63 additions and 6 deletions
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69
arch/arm/boot/dts/tegra20-ventana.dts
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@ -64,11 +64,6 @@
nvidia,pins = "dap4";
nvidia,function = "dap4";
};
ddc {
nvidia,pins = "ddc", "owc", "spdi", "spdo",
"uac";
nvidia,function = "rsvd2";
};
dta {
nvidia,pins = "dta", "dtb", "dtc", "dtd", "dte";
nvidia,function = "vi";
@ -98,7 +93,7 @@
nvidia,function = "pcie";
};
hdint {
nvidia,pins = "hdint", "pta";
nvidia,pins = "hdint";
nvidia,function = "hdmi";
};
i2cp {
@ -129,6 +124,10 @@
"lspi", "lvp1", "lvs";
nvidia,function = "displaya";
};
owc {
nvidia,pins = "owc", "spdi", "spdo", "uac";
nvidia,function = "rsvd2";
};
pmc {
nvidia,pins = "pmc";
nvidia,function = "pwr_on";
@ -248,6 +247,39 @@
nvidia,slew-rate-falling = <3>;
};
};
state_i2cmux_ddc: pinmux_i2cmux_ddc {
ddc {
nvidia,pins = "ddc";
nvidia,function = "i2c2";
};
pta {
nvidia,pins = "pta";
nvidia,function = "rsvd4";
};
};
state_i2cmux_pta: pinmux_i2cmux_pta {
ddc {
nvidia,pins = "ddc";
nvidia,function = "rsvd4";
};
pta {
nvidia,pins = "pta";
nvidia,function = "i2c2";
};
};
state_i2cmux_idle: pinmux_i2cmux_idle {
ddc {
nvidia,pins = "ddc";
nvidia,function = "rsvd4";
};
pta {
nvidia,pins = "pta";
nvidia,function = "rsvd4";
};
};
};
i2s@70002800 {
@ -291,6 +323,31 @@
clock-frequency = <400000>;
};
i2cmux {
compatible = "i2c-mux-pinctrl";
#address-cells = <1>;
#size-cells = <0>;
i2c-parent = <&{/i2c@7000c400}>;
pinctrl-names = "ddc", "pta", "idle";
pinctrl-0 = <&state_i2cmux_ddc>;
pinctrl-1 = <&state_i2cmux_pta>;
pinctrl-2 = <&state_i2cmux_idle>;
i2c@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
};
i2c@1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
};
};
i2c@7000c500 {
status = "okay";
clock-frequency = <400000>;