linux-kernel - Re: [PATCH v2 1/3] pinctrl: qcom: Update lpass variant independent functions as generic

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Date:   Wed, 3 Nov 2021 11:22:15 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Srinivasa Rao Mandadapu <srivasam@...eaurora.org>,
        agross@...nel.org, bjorn.andersson@...aro.org, lgirdwood@...il.com,
        broonie@...nel.org, robh+dt@...nel.org, plai@...eaurora.org,
        bgoswami@...eaurora.org, perex@...ex.cz, tiwai@...e.com,
        rohitkr@...eaurora.org, linux-arm-msm@...r.kernel.org,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, swboyd@...omium.org,
        judyhsiao@...omium.org
Cc:     Venkata Prasad Potturu <potturu@...eaurora.org>
Subject: Re: [PATCH v2 1/3] pinctrl: qcom: Update lpass variant independent
 functions as generic

Hi Srinivasa,
Thanks for the patches, I think you forgot to add correct mailing list 
for this drivers.

Please consider using scripts/get_maintainer.pl to help you with this list.

On 27/10/2021 14:41, Srinivasa Rao Mandadapu wrote:
> Update pin control variable names to make common for all lpass varients.
> Update bulk clock voting to optional voting as ADSP bypass platform doesn't
> need macro and decodec clocks, these are maintained as power domains and
> operated from lpass audio core cc.

How are you going to ensure that the powerdomains are switched on when 
setting up the pinctrl configuration.

Should we not take a reference to the power-domain in this driver?

--srini
> 
> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
> Co-developed-by: Venkata Prasad Potturu <potturu@...eaurora.org>
> Signed-off-by: Venkata Prasad Potturu <potturu@...eaurora.org>
> ---
>   drivers/pinctrl/qcom/pinctrl-lpass-lpi.c | 16 ++++++++--------
>   1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
> index 2f19ab4..0bd0c16 100644
> --- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
> +++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
> @@ -107,7 +107,7 @@ struct lpi_pinctrl {
>   };
>   
>   /* sm8250 variant specific data */
> -static const struct pinctrl_pin_desc sm8250_lpi_pins[] = {
> +static const struct pinctrl_pin_desc lpass_lpi_pins[] = {
>   	PINCTRL_PIN(0, "gpio0"),
>   	PINCTRL_PIN(1, "gpio1"),
>   	PINCTRL_PIN(2, "gpio2"),
> @@ -124,7 +124,7 @@ static const struct pinctrl_pin_desc sm8250_lpi_pins[] = {
>   	PINCTRL_PIN(13, "gpio13"),
>   };
>   
> -enum sm8250_lpi_functions {
> +enum lpass_lpi_functions {
>   	LPI_MUX_dmic1_clk,
>   	LPI_MUX_dmic1_data,
>   	LPI_MUX_dmic2_clk,
> @@ -203,7 +203,7 @@ static const struct lpi_pingroup sm8250_groups[] = {
>   	LPI_PINGROUP(13, NO_SLEW, dmic3_data, i2s2_data, _, _),
>   };
>   
> -static const struct lpi_function sm8250_functions[] = {
> +static const struct lpi_function lpass_functions[] = {
>   	LPI_FUNCTION(dmic1_clk),
>   	LPI_FUNCTION(dmic1_data),
>   	LPI_FUNCTION(dmic2_clk),
> @@ -228,12 +228,12 @@ static const struct lpi_function sm8250_functions[] = {
>   };
>   
>   static struct lpi_pinctrl_variant_data sm8250_lpi_data = {
> -	.pins = sm8250_lpi_pins,
> -	.npins = ARRAY_SIZE(sm8250_lpi_pins),
> +	.pins = lpass_lpi_pins,
> +	.npins = ARRAY_SIZE(lpass_lpi_pins),
>   	.groups = sm8250_groups,
>   	.ngroups = ARRAY_SIZE(sm8250_groups),
> -	.functions = sm8250_functions,
> -	.nfunctions = ARRAY_SIZE(sm8250_functions),
> +	.functions = lpass_functions,
> +	.nfunctions = ARRAY_SIZE(lpass_functions),
>   };
>   
>   static int lpi_gpio_read(struct lpi_pinctrl *state, unsigned int pin,
> @@ -615,7 +615,7 @@ static int lpi_pinctrl_probe(struct platform_device *pdev)
>   		return dev_err_probe(dev, PTR_ERR(pctrl->slew_base),
>   				     "Slew resource not provided\n");
>   
> -	ret = devm_clk_bulk_get(dev, MAX_LPI_NUM_CLKS, pctrl->clks);
> +	ret = devm_clk_bulk_get_optional(dev, MAX_LPI_NUM_CLKS, pctrl->clks);
>   	if (ret)
>   		return dev_err_probe(dev, ret, "Can't get clocks\n");
>   
>