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ARM: dt: imx28-cfa10036: introduce a regulator for mmc0 

The PWM3 pinmux configuration conflicts with gpio 3.28. Introduce a regulator
for mmc0 so that it conflicts with the pwm driver and fails gracefully. The
kernel will then able to access mmc0 normally.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
hifive-unleashed-5.1
Alexandre Belloni 2014-05-15 17:12:48 +02:00 committed by Shawn Guo
parent 01d41c9cdb
commit a3f8c56482
1 changed files with 22 additions and 0 deletions
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22
arch/arm/boot/dts/imx28-cfa10036.dts
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@ -53,6 +53,17 @@
fsl,pull-up = <MXS_PULL_DISABLE>;
};
mmc_pwr_cfa10036: mmc_pwr_cfa10036@0 {
reg = <0>;
fsl,pinmux-ids = <
0x31c3 /*
MX28_PAD_PWM3__GPIO_3_28 */
>;
fsl,drive-strength = <0>;
fsl,voltage = <1>;
fsl,pull-up = <0>;
};
};
ssp0: ssp@80010000 {
@ -60,6 +71,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc0_4bit_pins_a
&mmc0_cd_cfg &mmc0_sck_cfg>;
vmmc-supply = <&reg_vddio_sd0>;
bus-width = <4>;
status = "okay";
};
@ -116,4 +128,14 @@
default-state = "on";
};
};
reg_vddio_sd0: vddio-sd0 {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&mmc_pwr_cfa10036>;
regulator-name = "vddio-sd0";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio3 28 0>;
};
};