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| author | Josua Mayer <josua.mayer@jm0.eu> | 2026-01-13 18:31:35 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2026-01-18 05:11:37 +0300 |
| commit | 9fcca3e28533b8ee5a67c83be5defad3ed445e91 (patch) | |
| tree | ea3900c5ca965c7c05b8687c451de506e0781450 | |
| parent | e9c48e558696addf692559a9ded4f0064b5e6db2 (diff) | |
| download | linux-9fcca3e28533b8ee5a67c83be5defad3ed445e91.tar.xz | |
ARM: dts: imx50-kobo-aura: add epd pmic description
Kobo Aura (N514) includes a TPS65185 PMIC for the epaper display.
Add description for this pmic and its vin power-supply.
Signed-off-by: Josua Mayer <josua.mayer@jm0.eu>
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts | 60 |
1 files changed, 59 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts b/arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts index b1a6a9c58ac3..4725ee241cb1 100644 --- a/arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts +++ b/arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts @@ -58,6 +58,16 @@ }; }; + epd_pmic_supply: regulator-epd-pmic-in { + compatible = "regulator-fixed"; + regulator-name = "epd_pmic_supply"; + gpio = <&gpio1 27 GPIO_ACTIVE_HIGH>; + enable-active-high; + startup-delay-us = <20000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_epd_pmic_supply>; + }; + sd2_pwrseq: pwrseq { compatible = "mmc-pwrseq-simple"; pinctrl-names = "default"; @@ -135,7 +145,34 @@ pinctrl-0 = <&pinctrl_i2c2>; status = "okay"; - /* TODO: TPS65185 PMIC for E Ink at 0x68 */ + pmic@68 { + compatible = "ti,tps65185"; + reg = <0x68>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_epd_pmic>; + pwr-good-gpios = <&gpio3 28 GPIO_ACTIVE_HIGH>; + vcom-ctrl-gpios = <&gpio4 21 GPIO_ACTIVE_HIGH>; + enable-gpios = <&gpio3 30 GPIO_ACTIVE_HIGH>; + wakeup-gpios = <&gpio3 29 GPIO_ACTIVE_HIGH>; + vin-supply = <&epd_pmic_supply>; + interrupts-extended = <&gpio4 15 IRQ_TYPE_LEVEL_LOW>; + + regulators { + vcom { + regulator-name = "vcom"; + }; + + vposneg { + regulator-name = "vposneg"; + regulator-min-microvolt = <15000000>; + regulator-max-microvolt = <15000000>; + }; + + v3p3 { + regulator-name = "v3p3"; + }; + }; + }; }; &i2c3 { @@ -161,6 +198,27 @@ >; }; + pinctrl_epd_pmic: epd-pmic-grp { + fsl,pins = < + /* PWRUP */ + MX50_PAD_EPDC_PWRCTRL1__GPIO3_30 0x0 + /* WAKEUP */ + MX50_PAD_EPDC_PWRCTRL0__GPIO3_29 0x0 + /* VCOMCTRL */ + MX50_PAD_EPDC_VCOM0__GPIO4_21 0x0 + /* PWRGOOD: enable internal 100k pull-up */ + MX50_PAD_EPDC_PWRSTAT__GPIO3_28 0xe0 + /* INT: enable internal 100k pull-up */ + MX50_PAD_ECSPI1_SS0__GPIO4_15 0xe0 + >; + }; + + pinctrl_epd_pmic_supply: epd-pmic-supply-grp { + fsl,pins = < + MX50_PAD_EIM_CRE__GPIO1_27 0x0 + >; + }; + pinctrl_gpiokeys: gpiokeysgrp { fsl,pins = < MX50_PAD_CSPI_MISO__GPIO4_10 0x0 |