On 2 October 2014 18:10, Bartlomiej Zolnierkiewicz
<b.zolnierkie@xxxxxxxxxxx> wrote:
> 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@xxxxxxxxxx>
> Cc: Yuvaraj Kumar C D <yuvaraj.cd@xxxxxxxxxxx>
> Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
> Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Unless it causes a bunch non-trivial conflicts, I suggest we take this
through my mmc tree to not break bisectability.
Kind regards
Uffe
> ---
> arch/arm/boot/dts/exynos5420-arndale-octa.dts | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> Index: b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> ===================================================================
> --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts 2014-10-02 15:44:53.014826886 +0200
> +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts 2014-10-02 17:35:24.110600398 +0200
> @@ -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>;
>
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