ARM: dts: fix MMC2 regulators for Exynos5420 Arndale Octa board

Regulators for MMC2 (SD card) are PVDD_TFLASH_2V8 (LDO19) for vmmc
and PVDD_APIO_MMCOFF_2V8 (LDO13) for vqmmc.  Currently the device
tree entry for MMC2 uses PVDD_PRE_1V8 (LDO10) for vmmc and vqmmc is
not specified.  Fix it.

Without this patch:
- "mmc: dw_mmc: use mmc_regulator_get_supply to handle regulators"
  patch causes a SD card detection to fail
- "mmc: dw_mmc: Support voltage changes" patch causes a boot hang

This patch fixes both above problems.

Suggested-by: Doug Anderson <[email protected]>
Cc: Yuvaraj Kumar C D <[email protected]>
Cc: Ulf Hansson <[email protected]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
Acked-by: Kyungmin Park <[email protected]>
Fixes: 0173055842cd ("mmc: dw_mmc: Support voltage changes")
Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>

diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index 434fd9d3e09dc12f7065a9f96c45c896fd9f0158..1255d833d576a5d5afc823eade5093690c991f70 100644 (file)
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -74,7 +74,8 @@
                samsung,dw-mshc-ddr-timing = <1 2>;
                pinctrl-names = "default";
                pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
-               vmmc-supply = <&ldo10_reg>;
+               vmmc-supply = <&ldo19_reg>;
+               vqmmc-supply = <&ldo13_reg>;
 
                slot@0 {
                        reg = <0>;