linux-kernel - Re: [PATCH] staging: greybus: arche-platform: Switch to the gpio descriptor interface

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Date:   Fri, 16 Nov 2018 17:06:22 +0100
From:   Johan Hovold <johan@...nel.org>
To:     Nishad Kamdar <nishadkamdar@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Johan Hovold <johan@...nel.org>, Alex Elder <elder@...nel.org>,
        Rui Miguel Silva <rmfrfs@...il.com>,
        greybus-dev@...ts.linaro.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: greybus: arche-platform: Switch to the gpio
 descriptor interface

On Fri, Nov 16, 2018 at 08:47:44PM +0530, Nishad Kamdar wrote:
> Use the gpiod interface instead of the deprecated
> old non-descriptor interface.
> 
> Signed-off-by: Nishad Kamdar <nishadkamdar@...il.com>
> ---

Always include a change log here after the cut-off line so we know what
changed since previous versions.

Also include the patch revision in the Subject (e.g. "[PATCH v3]
staging: greybus: ...").

>  drivers/staging/greybus/arche-platform.c | 120 ++++++++---------------
>  1 file changed, 42 insertions(+), 78 deletions(-)
> 
> diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c
> index 4c36e88766e7..a826a1835628 100644
> --- a/drivers/staging/greybus/arche-platform.c
> +++ b/drivers/staging/greybus/arche-platform.c
> @@ -8,10 +8,9 @@
>  
>  #include <linux/clk.h>
>  #include <linux/delay.h>
> -#include <linux/gpio.h>
> +#include <linux/gpio/consumer.h>
>  #include <linux/init.h>
>  #include <linux/module.h>
> -#include <linux/of_gpio.h>
>  #include <linux/of_platform.h>
>  #include <linux/pinctrl/consumer.h>
>  #include <linux/platform_device.h>
> @@ -45,14 +44,15 @@ enum svc_wakedetect_state {
>  
>  struct arche_platform_drvdata {
>  	/* Control GPIO signals to and from AP <=> SVC */
> -	int svc_reset_gpio;
> +	struct gpio_desc *svc_reset;
> +	struct gpio_desc *svc_sysboot;
>  	bool is_reset_act_hi;
> -	int svc_sysboot_gpio;
> -	int wake_detect_gpio; /* bi-dir,maps to WAKE_MOD & WAKE_FRAME signals */
> +	struct gpio_desc *wake_detect;
> +	/* bi-dir,maps to WAKE_MOD & WAKE_FRAME signals */

I'm not commenting on the rest, but comments never go underneath what
they apply to.

Just keep the current comment here, even if it's placement is a bit odd
and makes the line be longer than 80 cols.

Johan