Re: [PATCHv1 1/3] arm64: dts: meson: odroid-c2: Add missing regulator linked to P5V0 regulator

Martin Blumenstingl
2019-09-01T11:37:39Z

On Wed, Aug 28, 2019 at 10:27 PM Anand Moon <linux.amoon@gmail.com> wrote:
>
> As per shematics VDDIO_AO18, VDDIO_AO3V3/VDD3V3 DDR3_1V5/DDR_VDDC:
typo: "schematics"

> fixed regulator output which is supplied by P5V0.
>
> Rename vcc3v3 regulator node to vddio_ao3v3 as per shematics.
typo: "schematics"

according to the schematics there's both:
- VDDIO_AO3V3
- VCC3V3 (which is turned on by VDDIO_AO3V3, see [0])

> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> Cc: Jerome Brunet <jbrunet@baylibre.com>
> Cc: Neil Armstrong <narmstrong@baylibre.com>
> Signed-off-by: Anand Moon <linux.amoon@gmail.com>
> ---
> .../boot/dts/amlogic/meson-gxbb-odroidc2.dts | 29 +++++++++++++++++--
> 1 file changed, 26 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
> index 792698a60a12..98e742bf44c1 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
> @@ -104,11 +104,34 @@
> regulator-max-microvolt = <1800000>;
> };
>
> - vcc3v3: regulator-vcc3v3 {
> + vddio_ao1v8: regulator-vddio-ao1v8 {
> compatible = "regulator-fixed";
> - regulator-name = "VCC3V3";
> + regulator-name = "VDDIO_AO1V8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + /* U17 RT9179GB */
> + vin-supply = <&p5v0>;
> + };
> +
> + vddio_ao3v3: regulator-vddio-ao3v3 {
> + compatible = "regulator-fixed";
> + regulator-name = "VDDIO_AO3V3";
> regulator-min-microvolt = <3300000>;
> regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + /* U11 MP2161GJ-C499 */
> + vin-supply = <&p5v0>;
> + };
> +
> + vddc_ddr: regulator-vddc-ddr {
> + compatible = "regulator-fixed";
> + regulator-name = "DDR_VDDC";
personally I would call this (along with the node name and alias) DDR3_1V5
odroid-c2_rev0.1_20150930.pdf shows that DDR3_1V5 and DDR_VDDC are
both the same. however, the DDR_VDDC signal name is not used by any
component in the datasheet

> + regulator-min-microvolt = <1500000>;
> + regulator-max-microvolt = <1500000>;
> + regulator-always-on;
> + /* U15 MP2161GJ-C499 */
> + vin-supply = <&p5v0>;
> };
>
> emmc_pwrseq: emmc-pwrseq {
> @@ -301,7 +324,7 @@
> mmc-hs200-1_8v;
>
> mmc-pwrseq = <&emmc_pwrseq>;
> - vmmc-supply = <&vcc3v3>;
> + vmmc-supply = <&vddio_ao3v3>;
odroid-c2_rev0.1_20150930.pdf uses VCC3V3 as supply

Martin