linux-kernel - Re: [PATCH v5 2/2] media: i2c: Add GC08A3 image sensor driver

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Date: Tue, 27 Feb 2024 02:41:06 +0000
From: Zhi Mao (毛智) <zhi.mao@...iatek.com>
To: "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>
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Subject: Re: [PATCH v5 2/2] media: i2c: Add GC08A3 image sensor driver

Hi Andy,

Thanks for your review.

On Tue, 2024-02-20 at 17:19 +0200, Andy Shevchenko wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  On Tue, Feb 20, 2024 at 3:47 AM Zhi Mao <zhi.mao@...iatek.com>
> wrote:
> >
> > Add a V4L2 sub-device driver for Galaxycore GC08A3 image sensor.
> 
> ...
> 
> > +#include <asm/unaligned.h>
> 
> Usually asm/* go after linux/*
> 
> > +#include <linux/clk.h>
> > +#include <linux/delay.h>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/i2c.h>
> > +#include <linux/module.h>
> > +#include <linux/pm_runtime.h>
> > +#include <linux/regulator/consumer.h>
> 
> This looks semi-random.
> For example, _at least_ the array_size.h, bits.h, container_of.h,
> device.h, err.h, mod_devicetable.h, property.h, types.h are missing,
> Please, use IWYU principle.
> 
I have remove some useless header file, refer to some others sensor
driver code(such as gc0a08/gc2145 and imx/ov sensor driver).
As these header files which mentioned above, are included by some other
header files, for example "container_of.h" is included by "media-
entity.h", while "media-entity.h" is inculded by "v4l2-subdev.h", so we
just need include "v4l2-subdev.h" in sensor driver code.

> ...
> 
> > +#define GC08A3_DEFAULT_CLK_FREQ 24000000
> 
> HZ_PER_MHZ ?
> 
fixed in patch:v6
> ...
> 
> > +#define GC08A3_SLEEP_US  2000
> 
> USEC_PER_MSEC ?
> 
fixed in patch:v6
> ...
> 
> > +static const s64 gc08a3_link_freq_menu_items[] = {
> > +       336000000ULL,
> > +       207000000ULL,
> 
> HZ_PER_MHZ ?
> 
fixed in patch:v6
> > +};
> 
> ...
> 
> > +static const struct dev_pm_ops gc08a3_pm_ops = {
> > +       SET_RUNTIME_PM_OPS(gc08a3_power_off, gc08a3_power_on, NULL)
> > +};
> 
> > +               .pm = &gc08a3_pm_ops,
> 
> Use new PM macros (pm_ptr() and friends).
> 
fixed in patch:v6
> -- 
> With Best Regards,
> Andy Shevchenko