linux-kernel - Re: [PATCH 02/10] pwm: Add SI-EN SN3112 PWM support

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Message-ID: <7j7d3ygupaprtryygxlpyjezd6naaaevrnzrpybxe7twcvuhbm@fzmswsfql37r>
Date: Thu, 25 Apr 2024 08:08:26 +0200
From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To: Xilin Wu <wuxilin123@...il.com>, 
	Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc: Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Junhao Xie <bigfoot@...ssfun.cn>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg <sam@...nborg.org>, 
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konrad.dybcio@...aro.org>, Tengfei Fan <quic_tengfan@...cinc.com>, 
	Molly Sophia <mollysophia379@...il.com>, linux-pwm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 02/10] pwm: Add SI-EN SN3112 PWM support

Hello,

On Wed, Apr 24, 2024 at 04:55:26PM +0100, Bryan O'Donoghue wrote:
> On 24/04/2024 16:29, Xilin Wu via B4 Relay wrote:
> > +#include <linux/i2c.h>
> > +#include <linux/module.h>
> > +#include <linux/mutex.h>
> > +#include <linux/platform_device.h>
> > +#include <linux/pwm.h>
> > +#include <linux/regmap.h>
> > +#include <linux/delay.h>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/regulator/consumer.h>
> 
> Includes should be alphabetised

Also check if you need them all. (E.g. I wonder about delay.h)

> > +	dev_dbg(priv->pdev, "request regmap_write 0x%x 0x%x\n", reg, val);
> > +	err = regmap_write(priv->regmap, reg, val);
> > +	if (err)
> > +		dev_warn_ratelimited(
> > +			priv->pdev,
> > +			"regmap_write to register 0x%x failed: %pe\n", reg,
> > +			ERR_PTR(err));
> 
> Multi-line should be encapsulated in {}
> 
> if (err) {
> 	stuff
> 	goes here
> }

In my eyes a single state doesn't need {} even when spanning multiple
lines.

> > +	return err;
> > +}

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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