ARM: at91/dt: sama5d3 xplained: add fixed regulator for vmmc0
authorBen Dooks <ben.dooks@codethink.co.uk>
Mon, 27 Apr 2015 13:19:12 +0000 (15:19 +0200)
committerNicolas Ferre <nicolas.ferre@atmel.com>
Tue, 19 May 2015 13:04:54 +0000 (15:04 +0200)
Add fixed regulator for vmmc0 and attach the vmmc for it to the mmc0
node on the SAM5D3 Xplained board. This will remove the following
warning from the kernel:

atmel_mci f0000000.mmc: No vmmc regulator found

Note, atmel_defconfig will need fixed regulator support enabled if this
is to be used properly.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
[use a fixed regulator instead of gpio one]
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
arch/arm/boot/dts/at91-sama5d3_xplained.dts

index 3596b4c..4799e88 100644 (file)
@@ -35,6 +35,7 @@
                apb {
                        mmc0: mmc@f0000000 {
                                pinctrl-0 = <&pinctrl_mmc0_clk_cmd_dat0 &pinctrl_mmc0_dat1_3 &pinctrl_mmc0_dat4_7 &pinctrl_mmc0_cd>;
+                               vmmc-supply = <&vcc_mmc0_reg>;
                                vqmmc-supply = <&vcc_3v3_reg>;
                                status = "okay";
                                slot@0 {
                };
        };
 
+       vcc_mmc0_reg: fixedregulator@0 {
+               compatible = "regulator-fixed";
+               gpio = <&pioE 2 GPIO_ACTIVE_LOW>;
+               regulator-name = "mmc0-card-supply";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
+
        gpio_keys {
                compatible = "gpio-keys";