linux-kernel - Re: [PATCH v2 2/2] pinctrl: qcom: handle input-enable pinconf property

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Message-ID: <20150304143853.GO26334@sonymobile.com>
Date:	Wed, 4 Mar 2015 06:38:53 -0800
From:	Bjorn Andersson <bjorn.andersson@...ymobile.com>
To:	Stanimir Varbanov <svarbanov@...sol.com>
CC:	Linus Walleij <linus.walleij@...aro.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	Stephen Boyd <sboyd@...eaurora.org>
Subject: Re: [PATCH v2 2/2] pinctrl: qcom: handle input-enable pinconf
 property

On Wed 04 Mar 02:41 PST 2015, Stanimir Varbanov wrote:

> This enables support of 'input-enable' pinconf generic property in
> the pinctrl driver.
> 
> Signed-off-by: Stanimir Varbanov <svarbanov@...sol.com>
> ---
>  drivers/pinctrl/qcom/pinctrl-msm.c |   11 +++++++++++
>  1 files changed, 11 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
> index d36e511..f3d800f 100644
> --- a/drivers/pinctrl/qcom/pinctrl-msm.c
> +++ b/drivers/pinctrl/qcom/pinctrl-msm.c
> @@ -193,6 +193,7 @@ static int msm_config_reg(struct msm_pinctrl *pctrl,
>  		*mask = 7;
>  		break;
>  	case PIN_CONFIG_OUTPUT:
> +	case PIN_CONFIG_INPUT_ENABLE:
>  		*bit = g->oe_bit;
>  		*mask = 1;
>  		break;
> @@ -260,6 +261,12 @@ static int msm_config_group_get(struct pinctrl_dev *pctldev,
>  		val = readl(pctrl->regs + g->io_reg);
>  		arg = !!(val & BIT(g->in_bit));
>  		break;
> +	case PIN_CONFIG_INPUT_ENABLE:
> +		/* Pin is output */
> +		if (arg)
> +			return -EINVAL;
> +		arg = 1;
> +		break;

I still don't like this part of the api, but the patch is

Acked-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>

>  	default:
>  		return -ENOTSUPP;
>  	}

Regards,
Bjorn
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