[PATCH v5 003/111] pwm: Provide a macro to get the parent device of a given chip

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Thu Jan 25 20:54:42 UTC 2024


On Thu, Jan 25, 2024 at 09:29:37PM +0100, Uwe Kleine-König wrote:
> On Thu, Jan 25, 2024 at 11:32:47AM -0800, Florian Fainelli wrote:
> > On 1/25/24 04:08, Uwe Kleine-König wrote:
> > > Currently a pwm_chip stores in its struct device *dev member a pointer
> > > to the parent device. Preparing a change that embeds a full struct
> > > device in struct pwm_chip, this accessor macro should be used in all
> > > drivers directly accessing chip->dev now. This way struct pwm_chip and
> > > this macro can be changed without having to touch all drivers in the
> > > same change set.
> > > 
> > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
> > 
> > Nit: this is not a macro but an inline function.
> 
> Oh right, it used to be a macro, but I changed that. I made the commit
> log read:
> 
>     pwm: Provide an inline function to get the parent device of a given chip
> 
>     Currently a pwm_chip stores in its struct device *dev member a pointer
>     to the parent device. Preparing a change that embeds a full struct
>     device in struct pwm_chip, this accessor function should be used in all
>     drivers directly accessing chip->dev now. This way struct pwm_chip and
>     this new function can be changed without having to touch all drivers in
>     the same change set.

While looking into further feedback, I noticed I did the same mistake in
all the patches that convert the drivers to use this function. I did

	git filter-branch --msg-filter 'sed "s/Make use of pwmchip_parent() macro/Make use of pwmchip_parent() accessor/; s/commit as struct pwm_chip::dev, use the macro/commit as struct pwm_chip::dev, use the accessor/; s/provided for exactly this purpose./function provided for exactly this purpose./"' linus/master..

on my branch to make the typical commit log read:

	pwm: atmel: Make use of pwmchip_parent() accessor
	
	struct pwm_chip::dev is about to change. To not have to touch this
	driver in the same commit as struct pwm_chip::dev, use the accessor
	function provided for exactly this purpose.

I wont resend the whole series if this is the only change to it.

Best regards
Uwe

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