Commit 583f958b authored Oct 02, 2014 by Bartlomiej Zolnierkiewicz Committed by Ulf Hansson Oct 09, 2014

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 <dianders@google.com>
Cc: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Fixes: 01730558 ("mmc: dw_mmc: Support voltage changes")
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent 8024379e

arch/arm/boot/dts/exynos5420-arndale-octa.dts

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -74,7 +74,8 @@
	samsung,dw-mshc-ddr-timing = <1 2>;		samsung,dw-mshc-ddr-timing = <1 2>;
	pinctrl-names = "default";		pinctrl-names = "default";
	pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;		pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
	vmmc-supply = <&ldo10_reg>;		vmmc-supply = <&ldo19_reg>;
			vqmmc-supply = <&ldo13_reg>;

	slot@0 {		slot@0 {
	reg = <0>;		reg = <0>;