Hi Caesaer, Am Dienstag, 22. Dezember 2015, 17:33:52 schrieb Caesar Wang: > Without this the wifi/bluetooth module doesn't work > properly at bootup. > > Signed-off-by: Caesar Wang <wxt@xxxxxxxxxxxxxx> > > Patchset: Rockchip kylin board Patch[6/6], bring up kylin board. > We need add the wifi regulator to control the power. > > (am https://patchwork.kernel.org/patch/7873721/) > --- > > arch/arm/boot/dts/rk3036-kylin.dts | 43 > +++++++++++++++++++++++++++++++++++++- 1 file changed, 42 insertions(+), 1 > deletion(-) > > diff --git a/arch/arm/boot/dts/rk3036-kylin.dts > b/arch/arm/boot/dts/rk3036-kylin.dts index 2ef38be..ed0466f 100644 > --- a/arch/arm/boot/dts/rk3036-kylin.dts > +++ b/arch/arm/boot/dts/rk3036-kylin.dts > @@ -76,6 +76,32 @@ > regulator-always-on; > regulator-boot-on; > }; > + > + bt_regulator: bt-regulator { > + compatible = "regulator-fixed"; > + enable-active-high; > + gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>; > + pinctrl-names = "default"; > + pinctrl-0 = <&bt_rst_l>; > + regulator-name = "bt_regulator"; > + }; > + > + wifi_regulator: wifi-regulator { > + /* > + * On the module itself this is one of these (depending > + * on the actual card populated): > + * - SDIO_RESET_L_WL_REG_ON > + * - PDN (power down when low) > + */ > + > + compatible = "regulator-fixed"; > + enable-active-high; > + gpio = <&gpio0 26 GPIO_ACTIVE_HIGH>; > + pinctrl-names = "default"; > + pinctrl-0 = <&wifi_enable_h>; > + regulator-name = "wifi_regulator"; > + vin-supply = <&bt_regulator>; > + }; > }; > > &acodec { > @@ -303,12 +329,13 @@ > sd-uhs-sdr50; > sd-uhs-sdr104; > cap-sdio-irq; > + card-external-vcc-supply = <&wifi_regulator>; as I said in our chat, that concept didn't make it into the kernel. mmc-power- sequences are the new thing. Please look into the sdio-pwrseq node in rk3288- veyron.dtsi for examples. Heiko > default-sample-phase = <90>; > keep-power-in-suspend; > non-removable; > num-slots = <1>; > pinctrl-names = "default"; > - pinctrl-0 = <&sdio_clk &sdio_cmd &sdio_bus4>; > + pinctrl-0 = <&sdio_clk &sdio_cmd &sdio_bus4 &bt_wake_h>; > }; > > &uart2 { > @@ -330,6 +357,20 @@ > }; > }; > > + sdio { > + wifi_enable_h: wifienable-h { > + rockchip,pins = <0 26 RK_FUNC_GPIO &pcfg_pull_none>; > + }; > + > + bt_rst_l: bt-rst-l { > + rockchip,pins = <2 9 RK_FUNC_GPIO &pcfg_pull_none>; > + }; > + > + bt_wake_h: bt-wake-h { > + rockchip,pins = <2 8 RK_FUNC_GPIO &pcfg_pull_default>; > + }; > + }; > + > sleep { > global_pwroff: global-pwroff { > rockchip,pins = <2 7 RK_FUNC_1 &pcfg_pull_none>; -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
