diff mbox

[4/6] staging/fbtft: Stop using BL_CORE_DRIVER1

Message ID 20180425174253.4616-4-daniel.vetter@ffwll.ch (mailing list archive)
State New, archived
Headers show

Commit Message

Daniel Vetter April 25, 2018, 5:42 p.m. UTC 
Leaking driver internal tracking into the already massively confusing
backlight power tracking is really confusing.

Luckily we have already a drvdata structure, so fixing this is really
easy.

Cc: Lee Jones <lee.jones@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
 drivers/staging/fbtft/fbtft-core.c | 4 ++--
 drivers/staging/fbtft/fbtft.h      | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

Comments

Lee Jones April 30, 2018, 9:54 a.m. UTC | #1 
Greg, Thomas,

On Wed, 25 Apr 2018, Daniel Vetter wrote:
> Leaking driver internal tracking into the already massively confusing
> backlight power tracking is really confusing.
> 
> Luckily we have already a drvdata structure, so fixing this is really
> easy.
> 
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Daniel Thompson <daniel.thompson@linaro.org>
> Cc: Jingoo Han <jingoohan1@gmail.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> ---
>  drivers/staging/fbtft/fbtft-core.c | 4 ++--
>  drivers/staging/fbtft/fbtft.h      | 1 +
>  2 files changed, 3 insertions(+), 2 deletions(-)

Do you want a pull-request for this patch or can I just take it?

> diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
> index 0e36b66ae5f7..731e47149af8 100644
> --- a/drivers/staging/fbtft/fbtft-core.c
> +++ b/drivers/staging/fbtft/fbtft-core.c
> @@ -246,7 +246,7 @@ static int fbtft_request_gpios_dt(struct fbtft_par *par)
>  static int fbtft_backlight_update_status(struct backlight_device *bd)
>  {
>  	struct fbtft_par *par = bl_get_data(bd);
> -	bool polarity = !!(bd->props.state & BL_CORE_DRIVER1);
> +	bool polarity = par->polarity;
>  
>  	fbtft_par_dbg(DEBUG_BACKLIGHT, par,
>  		"%s: polarity=%d, power=%d, fb_blank=%d\n",
> @@ -296,7 +296,7 @@ void fbtft_register_backlight(struct fbtft_par *par)
>  	/* Assume backlight is off, get polarity from current state of pin */
>  	bl_props.power = FB_BLANK_POWERDOWN;
>  	if (!gpio_get_value(par->gpio.led[0]))
> -		bl_props.state |= BL_CORE_DRIVER1;
> +		par->polarity = true;
>  
>  	bd = backlight_device_register(dev_driver_string(par->info->device),
>  				       par->info->device, par,
> diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
> index e19e64e0d094..c7cb4a7896f4 100644
> --- a/drivers/staging/fbtft/fbtft.h
> +++ b/drivers/staging/fbtft/fbtft.h
> @@ -229,6 +229,7 @@ struct fbtft_par {
>  	ktime_t update_time;
>  	bool bgr;
>  	void *extra;
> +	bool polarity;
>  };
>  
>  #define NUMARGS(...)  (sizeof((int[]){__VA_ARGS__})/sizeof(int))
Jani Nikula April 30, 2018, 10:22 a.m. UTC | #2 
On Wed, 25 Apr 2018, Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> Leaking driver internal tracking into the already massively confusing
> backlight power tracking is really confusing.
>
> Luckily we have already a drvdata structure, so fixing this is really
> easy.
>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Daniel Thompson <daniel.thompson@linaro.org>
> Cc: Jingoo Han <jingoohan1@gmail.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  drivers/staging/fbtft/fbtft-core.c | 4 ++--
>  drivers/staging/fbtft/fbtft.h      | 1 +
>  2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
> index 0e36b66ae5f7..731e47149af8 100644
> --- a/drivers/staging/fbtft/fbtft-core.c
> +++ b/drivers/staging/fbtft/fbtft-core.c
> @@ -246,7 +246,7 @@ static int fbtft_request_gpios_dt(struct fbtft_par *par)
>  static int fbtft_backlight_update_status(struct backlight_device *bd)
>  {
>  	struct fbtft_par *par = bl_get_data(bd);
> -	bool polarity = !!(bd->props.state & BL_CORE_DRIVER1);
> +	bool polarity = par->polarity;
>  
>  	fbtft_par_dbg(DEBUG_BACKLIGHT, par,
>  		"%s: polarity=%d, power=%d, fb_blank=%d\n",
> @@ -296,7 +296,7 @@ void fbtft_register_backlight(struct fbtft_par *par)
>  	/* Assume backlight is off, get polarity from current state of pin */
>  	bl_props.power = FB_BLANK_POWERDOWN;
>  	if (!gpio_get_value(par->gpio.led[0]))
> -		bl_props.state |= BL_CORE_DRIVER1;
> +		par->polarity = true;
>  
>  	bd = backlight_device_register(dev_driver_string(par->info->device),
>  				       par->info->device, par,
> diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
> index e19e64e0d094..c7cb4a7896f4 100644
> --- a/drivers/staging/fbtft/fbtft.h
> +++ b/drivers/staging/fbtft/fbtft.h
> @@ -229,6 +229,7 @@ struct fbtft_par {
>  	ktime_t update_time;
>  	bool bgr;
>  	void *extra;
> +	bool polarity;
>  };
>  
>  #define NUMARGS(...)  (sizeof((int[]){__VA_ARGS__})/sizeof(int))
Greg KH April 30, 2018, 10:59 a.m. UTC | #3 
On Mon, Apr 30, 2018 at 10:54:15AM +0100, Lee Jones wrote:
> Greg, Thomas,
> 
> On Wed, 25 Apr 2018, Daniel Vetter wrote:
> > Leaking driver internal tracking into the already massively confusing
> > backlight power tracking is really confusing.
> > 
> > Luckily we have already a drvdata structure, so fixing this is really
> > easy.
> > 
> > Cc: Lee Jones <lee.jones@linaro.org>
> > Cc: Daniel Thompson <daniel.thompson@linaro.org>
> > Cc: Jingoo Han <jingoohan1@gmail.com>
> > Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> > Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > ---
> >  drivers/staging/fbtft/fbtft-core.c | 4 ++--
> >  drivers/staging/fbtft/fbtft.h      | 1 +
> >  2 files changed, 3 insertions(+), 2 deletions(-)
> 
> Do you want a pull-request for this patch or can I just take it?

Please take it if you need to take the whole series.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff mbox

Patch

diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 0e36b66ae5f7..731e47149af8 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -246,7 +246,7 @@  static int fbtft_request_gpios_dt(struct fbtft_par *par)
 static int fbtft_backlight_update_status(struct backlight_device *bd)
 {
 	struct fbtft_par *par = bl_get_data(bd);
-	bool polarity = !!(bd->props.state & BL_CORE_DRIVER1);
+	bool polarity = par->polarity;
 
 	fbtft_par_dbg(DEBUG_BACKLIGHT, par,
 		"%s: polarity=%d, power=%d, fb_blank=%d\n",
@@ -296,7 +296,7 @@  void fbtft_register_backlight(struct fbtft_par *par)
 	/* Assume backlight is off, get polarity from current state of pin */
 	bl_props.power = FB_BLANK_POWERDOWN;
 	if (!gpio_get_value(par->gpio.led[0]))
-		bl_props.state |= BL_CORE_DRIVER1;
+		par->polarity = true;
 
 	bd = backlight_device_register(dev_driver_string(par->info->device),
 				       par->info->device, par,
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index e19e64e0d094..c7cb4a7896f4 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -229,6 +229,7 @@  struct fbtft_par {
 	ktime_t update_time;
 	bool bgr;
 	void *extra;
+	bool polarity;
 };
 
 #define NUMARGS(...)  (sizeof((int[]){__VA_ARGS__})/sizeof(int))