linux-kernel - Re: [PATCH v5 3/3] pwm: sophgo: add driver for SG2044

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Message-ID: <azf5lzfkegr6wt3mratxra2mlfah45dc3comtkjbrbdzf4x5xc@tlzxp7oqtcfl>
Date: Fri, 30 May 2025 09:50:25 +0200
From: Uwe Kleine-König <ukleinek@...nel.org>
To: Longbin Li <looong.bin@...il.com>
Cc: Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Chen Wang <unicorn_wang@...look.com>, Inochi Amaoto <inochiama@...il.com>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>, linux-pwm@...r.kernel.org, 
	devicetree@...r.kernel.org, sophgo@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v5 3/3] pwm: sophgo: add driver for SG2044

Hello,

On Wed, May 28, 2025 at 06:11:38PM +0800, Longbin Li wrote:
> Add PWM controller for SG2044 on base of SG2042.
> 
> Signed-off-by: Longbin Li <looong.bin@...il.com>
> Reviewed-by: Chen Wang <unicorn_wang@...look.com>
> Tested-by: Chen Wang <unicorn_wang@...look.com>

Nitpick: Make your S-o-b line the last line. This way you document that
it was you who added the tags for Chen Wang.

> [...]
> +static int pwm_sg2044_apply(struct pwm_chip *chip, struct pwm_device *pwm,
> +			    const struct pwm_state *state)
> +{
> +	struct sg2042_pwm_ddata *ddata = pwmchip_get_drvdata(chip);
> +
> +	pwm_sg2044_set_polarity(ddata, pwm, state);
> +
> +	pwm_sg2042_set_dutycycle(chip, pwm, state);
> +
> +	/*
> +	 * re-enable PWMSTART to refresh the register period
> +	 */
> +	 pwm_sg2044_set_outputen(ddata, pwm, false);

I'm astonished that checkpatch doesn't spot the wrong indention here.

> +
> +	if (!state->enabled)
> +		return 0;
> +
> +	pwm_sg2044_set_outputdir(ddata, pwm, true);
> +	pwm_sg2044_set_outputen(ddata, pwm, true);
> +
> +	return 0;
> +}
> +
>  static const struct sg2042_chip_data sg2042_chip_data = {
>  	.ops = {
>  		.apply = pwm_sg2042_apply,
> @@ -142,11 +215,22 @@ static const struct sg2042_chip_data sg2042_chip_data = {
>  	}
>  };
> 
> +static const struct sg2042_chip_data sg2044_chip_data = {
> +	.ops = {
> +		.apply = pwm_sg2044_apply,
> +		.get_state = pwm_sg2042_get_state,
> +	}

Missing , after }.

If you're ok, I'll pick up this version and fixup the two code changes
and the order of the tags in the commit log.

Best regards
Uwe

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