linux-kernel - Re: [PATCH v1 1/6] ARM: dts: fix the correct pinctrl control for rk3036

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Message-ID: <1838222.r8GKl7OzB9@diego>
Date:	Fri, 18 Dec 2015 00:28:27 +0100
From:	Heiko Stübner <heiko@...ech.de>
To:	Caesar Wang <wxt@...k-chips.com>
Cc:	linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	leozwang@...gle.com, keescook@...gle.com,
	Xing Zheng <zhengxing@...k-chips.com>
Subject: Re: [PATCH v1 1/6] ARM: dts: fix the correct pinctrl control for rk3036

Am Donnerstag, 17. Dezember 2015, 22:21:47 schrieb Caesar Wang:
> The pinctrl gpio pull up/down is incorrect since the rk3036 SoCs
> can't set the status in the internal.
> 
> We should keep the default status for enable the gpio status,
> In fact, the pull_none is the disable the gpio pull up/down.
> 
> Signed-off-by: Xing Zheng <zhengxing@...k-chips.com>
> Signed-off-by: Caesar Wang <wxt@...k-chips.com>

>From the signed-off-by's I guess this change was created by Xing (author), 
right?


Heiko

> ---
> 
>  arch/arm/boot/dts/rk3036.dtsi | 34 +++++++++++++++-------------------
>  1 file changed, 15 insertions(+), 19 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
> index f8758bf..620e6e0 100644
> --- a/arch/arm/boot/dts/rk3036.dtsi
> +++ b/arch/arm/boot/dts/rk3036.dtsi
> @@ -427,12 +427,8 @@
>  			#interrupt-cells = <2>;
>  		};
> 
> -		pcfg_pull_up: pcfg-pull-up {
> -			bias-pull-up;
> -		};
> -
> -		pcfg_pull_down: pcfg-pull-down {
> -			bias-pull-down;
> +		pcfg_pull_default: pcfg_pull_default {
> +			bias-pull-pin-default;
>  		};
> 
>  		pcfg_pull_none: pcfg-pull-none {
> @@ -473,18 +469,18 @@
>  			};
> 
>  			emmc_cmd: emmc-cmd {
> -				rockchip,pins = <2 1 RK_FUNC_2 &pcfg_pull_none>;
> +				rockchip,pins = <2 1 RK_FUNC_2 &pcfg_pull_default>;
>  			};
> 
>  			emmc_bus8: emmc-bus8 {
> -				rockchip,pins = <1 24 RK_FUNC_2 &pcfg_pull_none>,
> -						<1 25 RK_FUNC_2 &pcfg_pull_none>,
> -						<1 26 RK_FUNC_2 &pcfg_pull_none>,
> -						<1 27 RK_FUNC_2 &pcfg_pull_none>,
> -						<1 28 RK_FUNC_2 &pcfg_pull_none>,
> -						<1 29 RK_FUNC_2 &pcfg_pull_none>,
> -						<1 30 RK_FUNC_2 &pcfg_pull_none>,
> -						<1 31 RK_FUNC_2 &pcfg_pull_none>;
> +				rockchip,pins = <1 24 RK_FUNC_2 &pcfg_pull_default>,
> +						<1 25 RK_FUNC_2 &pcfg_pull_default>,
> +						<1 26 RK_FUNC_2 &pcfg_pull_default>,
> +						<1 27 RK_FUNC_2 &pcfg_pull_default>,
> +						<1 28 RK_FUNC_2 &pcfg_pull_default>,
> +						<1 29 RK_FUNC_2 &pcfg_pull_default>,
> +						<1 30 RK_FUNC_2 &pcfg_pull_default>,
> +						<1 31 RK_FUNC_2 &pcfg_pull_default>;
>  			};
>  		};
> 
> @@ -522,12 +518,12 @@
> 
>  		uart0 {
>  			uart0_xfer: uart0-xfer {
> -				rockchip,pins = <0 16 RK_FUNC_1 &pcfg_pull_up>,
> +				rockchip,pins = <0 16 RK_FUNC_1 &pcfg_pull_default>,
>  						<0 17 RK_FUNC_1 &pcfg_pull_none>;
>  			};
> 
>  			uart0_cts: uart0-cts {
> -				rockchip,pins = <0 18 RK_FUNC_1 &pcfg_pull_up>;
> +				rockchip,pins = <0 18 RK_FUNC_1 &pcfg_pull_default>;
>  			};
> 
>  			uart0_rts: uart0-rts {
> @@ -537,7 +533,7 @@
> 
>  		uart1 {
>  			uart1_xfer: uart1-xfer {
> -				rockchip,pins = <2 22 RK_FUNC_1 &pcfg_pull_none>,
> +				rockchip,pins = <2 22 RK_FUNC_1 &pcfg_pull_default>,
>  						<2 23 RK_FUNC_1 &pcfg_pull_none>;
>  			};
>  			/* no rts / cts for uart1 */
> @@ -545,7 +541,7 @@
> 
>  		uart2 {
>  			uart2_xfer: uart2-xfer {
> -				rockchip,pins = <1 18 RK_FUNC_2 &pcfg_pull_none>,
> +				rockchip,pins = <1 18 RK_FUNC_2 &pcfg_pull_default>,
>  						<1 19 RK_FUNC_2 &pcfg_pull_none>;
>  			};
>  			/* no rts / cts for uart2 */

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