On 12.10.2015 00:46, Anand Moon wrote:
> Added support for vmmc/vqmmc-supply for emmc/sd cards.
> Fixed the min values for regulator ldo13_reg (VDDQ_MMC2).
I can't see the description of a problem which is fixed. If you fix
something, then please describe what is wrong.
> Added ramp-delay for LDO9(VDD33_USB3_0).
> Added ramp-delay for LDO13(VDDQ_MMC2).
> Added ramp-delay for LDO15(ETH_P3V3).
>
> Signed-off-by: Anand Moon <linux.am...@gmail.com>
>
> ---
> Changes based on
> git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git
> v4.4-next/dt-samsung branch
>
> Note:
> Changes need for support of UHS-I highspeed cards.
> changes for vqmmc-supply for emmc is not supported.
>
> [ 1.831136] vdd_ldo9: ramp_delay not set
> [ 1.843049] vdd_ldo13: ramp_delay not set
> [ 1.850975] vdd_ldo15: ramp_delay not set
> [ 1.862816] vdd_sd: ramp_delay not set
> ---
> arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
> b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
> index 26decbd..58c06d3 100644
> --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
> +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
> @@ -157,6 +157,7 @@
> regulator-min-microvolt = <3000000>;
> regulator-max-microvolt = <3000000>;
> regulator-always-on;
> + regulator-ramp-delay = <12000>;
> };
>
> ldo10_reg: LDO10 {
> @@ -182,9 +183,10 @@
>
> ldo13_reg: LDO13 {
> regulator-name = "vdd_ldo13";
> - regulator-min-microvolt = <2800000>;
> + regulator-min-microvolt = <1800000>;
> regulator-max-microvolt = <2800000>;
> regulator-always-on;
> + regulator-ramp-delay = <12000>;
> };
>
> ldo15_reg: LDO15 {
> @@ -213,6 +215,7 @@
> regulator-min-microvolt = <2800000>;
> regulator-max-microvolt = <2800000>;
> regulator-always-on;
> + regulator-ramp-delay = <12000>;
Where did you get this value from? It looks wrong... My datasheet does
not have 12000 uV/uS.
> };
>
> ldo24_reg: LDO24 {
> @@ -338,6 +341,7 @@
> samsung,dw-mshc-ddr-timing = <0 2>;
> samsung,dw-mshc-hs400-timing = <0 2>;
> samsung,read-strobe-delay = <90>;
> + vmmc-supply = <&ldo3_reg>;
> pinctrl-names = "default";
> pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_cd
> &sd0_rclk>;
> bus-width = <8>;
> @@ -352,6 +356,8 @@
> samsung,dw-mshc-ciu-div = <3>;
> samsung,dw-mshc-sdr-timing = <0 4>;
> samsung,dw-mshc-ddr-timing = <0 2>;
> + vmmc-supply = <&ldo19_reg>;
> + vqmmc-supply = <&ldo13_reg>;
It looks wrong. LDO13 is used in one place as VQMMC and in other as
VMMC. How did you figure out which regulator supplies which power domain?
Best regards,
Krzysztof
> cd-gpios = <&gpc2 2 GPIO_ACTIVE_HIGH>;
> cd-inverted;
> pinctrl-names = "default";
>
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