From: Tony Lindgren <tony@atomide.com>
To: Dario Binacchi <dariobin@libero.it>
Cc: linux-kernel@vger.kernel.org,
Haojian Zhuang <haojian.zhuang@linaro.org>,
Linus Walleij <linus.walleij@linaro.org>,
linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org,
linux-omap@vger.kernel.org
Subject: Re: [PATCH] pinctrl: single: config: enable the pin's input
Date: Tue, 18 May 2021 09:08:16 +0300 [thread overview]
Message-ID: <YKNZ0A7umnk4LwKU@atomide.com> (raw)
In-Reply-To: <20210514163818.12178-1-dariobin@libero.it>
* Dario Binacchi <dariobin@libero.it> [210514 16:38]:
> It enables / disables the input buffer. As explained in the description
> of 'enum pin_config_param' this does not affect the pin's ability to
> drive output.
>
> Signed-off-by: Dario Binacchi <dariobin@libero.it>
> ---
>
> drivers/pinctrl/pinctrl-single.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
> index 2c9c9835f375..4e7cdb9ee855 100644
> --- a/drivers/pinctrl/pinctrl-single.c
> +++ b/drivers/pinctrl/pinctrl-single.c
> @@ -534,6 +534,7 @@ static int pcs_pinconf_get(struct pinctrl_dev *pctldev,
> case PIN_CONFIG_DRIVE_STRENGTH:
> case PIN_CONFIG_SLEW_RATE:
> case PIN_CONFIG_MODE_LOW_POWER:
> + case PIN_CONFIG_INPUT_ENABLE:
> default:
> *config = data;
> break;
> @@ -572,6 +573,7 @@ static int pcs_pinconf_set(struct pinctrl_dev *pctldev,
> case PIN_CONFIG_DRIVE_STRENGTH:
> case PIN_CONFIG_SLEW_RATE:
> case PIN_CONFIG_MODE_LOW_POWER:
> + case PIN_CONFIG_INPUT_ENABLE:
> shift = ffs(func->conf[i].mask) - 1;
> data &= ~func->conf[i].mask;
> data |= (arg << shift) & func->conf[i].mask;
> @@ -918,6 +920,7 @@ static int pcs_parse_pinconf(struct pcs_device *pcs, struct device_node *np,
> static const struct pcs_conf_type prop2[] = {
> { "pinctrl-single,drive-strength", PIN_CONFIG_DRIVE_STRENGTH, },
> { "pinctrl-single,slew-rate", PIN_CONFIG_SLEW_RATE, },
> + { "pinctrl-single,input-enable", PIN_CONFIG_INPUT_ENABLE, },
> { "pinctrl-single,input-schmitt", PIN_CONFIG_INPUT_SCHMITT, },
> { "pinctrl-single,low-power-mode", PIN_CONFIG_MODE_LOW_POWER, },
> };
Looks OK to me if this works for Linus W. You need another patch to
update the binding though:
Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml
Or if there is such a patch floating around, I was not in Cc :)
Regards,
Tony
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next prev parent reply other threads:[~2021-05-18 6:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-14 16:38 [PATCH] pinctrl: single: config: enable the pin's input Dario Binacchi
2021-05-18 6:08 ` Tony Lindgren [this message]
2021-05-18 9:01 ` Dario Binacchi
2021-05-18 20:19 ` Dario Binacchi
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