* [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness [not found] <1382462819-28576-1-git-send-email-jhovold@gmail.com> @ 2013-10-22 17:26 ` Johan Hovold 2013-10-23 1:20 ` Jingoo Han 2013-10-22 17:26 ` [PATCH 2/9] backlight: atmel-pwm-bl: fix gpio polarity in remove Johan Hovold 1 sibling, 1 reply; 9+ messages in thread From: Johan Hovold @ 2013-10-22 17:26 UTC (permalink / raw) To: Richard Purdie, Jingoo Han Cc: Nicolas Ferre, linux-fbdev, linux-kernel, Johan Hovold, stable The driver supports 16-bit brightness values, but the value returned from get_brightness was truncated to eight bits. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> --- drivers/video/backlight/atmel-pwm-bl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index 66885fb..8aac273 100644 --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) { struct atmel_pwm_bl *pwmbl = bl_get_data(bd); - u8 intensity; + u32 intensity; if (pwmbl->pdata->pwm_active_low) { intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - @@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); } - return intensity; + return (u16)intensity; } static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl) -- 1.8.4 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness 2013-10-22 17:26 ` [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness Johan Hovold @ 2013-10-23 1:20 ` Jingoo Han 2013-10-23 8:51 ` Johan Hovold 0 siblings, 1 reply; 9+ messages in thread From: Jingoo Han @ 2013-10-23 1:20 UTC (permalink / raw) To: 'Johan Hovold' Cc: 'Richard Purdie', 'Nicolas Ferre', linux-fbdev, linux-kernel, stable, 'Jingoo Han' On Wednesday, October 23, 2013 2:27 AM, Johan Hovold wrote: > > The driver supports 16-bit brightness values, but the value returned > from get_brightness was truncated to eight bits. > > Cc: stable@vger.kernel.org > Signed-off-by: Johan Hovold <jhovold@gmail.com> > --- > drivers/video/backlight/atmel-pwm-bl.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c > index 66885fb..8aac273 100644 > --- a/drivers/video/backlight/atmel-pwm-bl.c > +++ b/drivers/video/backlight/atmel-pwm-bl.c > @@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) > static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > { > struct atmel_pwm_bl *pwmbl = bl_get_data(bd); > - u8 intensity; > + u32 intensity; > > if (pwmbl->pdata->pwm_active_low) { > intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > @@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); > } > > - return intensity; > + return (u16)intensity; However, atmel_pwm_bl_get_intensity() should return 'int', instead of 'u16'. Also, pwm_channel_readl() returns 'u32'. Then, how about the following? --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -70,17 +70,17 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) { struct atmel_pwm_bl *pwmbl = bl_get_data(bd); - u8 intensity; + u16 intensity; if (pwmbl->pdata->pwm_active_low) { - intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - + intensity = (u16) pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - pwmbl->pdata->pwm_duty_min; } else { - intensity = pwmbl->pdata->pwm_duty_max - + intensity = (u16) pwmbl->pdata->pwm_duty_max - pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); } - return intensity; + return (int)intensity; } Best regards, Jingoo Han ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness 2013-10-23 1:20 ` Jingoo Han @ 2013-10-23 8:51 ` Johan Hovold 2013-10-23 9:35 ` Jingoo Han 0 siblings, 1 reply; 9+ messages in thread From: Johan Hovold @ 2013-10-23 8:51 UTC (permalink / raw) To: Jingoo Han Cc: 'Johan Hovold', 'Richard Purdie', 'Nicolas Ferre', linux-fbdev, linux-kernel, stable On Wed, Oct 23, 2013 at 10:20:59AM +0900, Jingoo Han wrote: > On Wednesday, October 23, 2013 2:27 AM, Johan Hovold wrote: > > > > The driver supports 16-bit brightness values, but the value returned > > from get_brightness was truncated to eight bits. > > > > Cc: stable@vger.kernel.org > > Signed-off-by: Johan Hovold <jhovold@gmail.com> > > --- > > drivers/video/backlight/atmel-pwm-bl.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c > > index 66885fb..8aac273 100644 > > --- a/drivers/video/backlight/atmel-pwm-bl.c > > +++ b/drivers/video/backlight/atmel-pwm-bl.c > > @@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) > > static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > > { > > struct atmel_pwm_bl *pwmbl = bl_get_data(bd); > > - u8 intensity; > > + u32 intensity; > > > > if (pwmbl->pdata->pwm_active_low) { > > intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > > @@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > > pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); > > } > > > > - return intensity; > > + return (u16)intensity; > > However, atmel_pwm_bl_get_intensity() should return 'int', > instead of 'u16'. Yes, but the cast to int is implicit. Perhaps return (intensity & 0xffff); (or just a comment) would make it more clear why the cast is there. > Also, pwm_channel_readl() returns 'u32'. Yes, (and only the 16 least-significant bits are used). That and the fact that the platform-data limits are currently unsigned long (I was considering fixing this later) was why I preferred keeping all register value manipulation in u32 and do a single cast at the end. > Then, how about the following? > > --- a/drivers/video/backlight/atmel-pwm-bl.c > +++ b/drivers/video/backlight/atmel-pwm-bl.c > @@ -70,17 +70,17 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) > static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > { > struct atmel_pwm_bl *pwmbl = bl_get_data(bd); > - u8 intensity; > + u16 intensity; > > if (pwmbl->pdata->pwm_active_low) { > - intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > + intensity = (u16) pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > pwmbl->pdata->pwm_duty_min; This would actually introduce a new conversion warning (unless you add parentheses as well) as pwm_duty_min is unsigned long. Same below. > } else { > - intensity = pwmbl->pdata->pwm_duty_max - > + intensity = (u16) pwmbl->pdata->pwm_duty_max - > pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); > } > > - return intensity; > + return (int)intensity; > } However, if you feel strongly about this, I'll respin the series (a later patch would likely no longer apply), use u16 and add casts to the two assignments. Thanks, Johan ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness 2013-10-23 8:51 ` Johan Hovold @ 2013-10-23 9:35 ` Jingoo Han 0 siblings, 0 replies; 9+ messages in thread From: Jingoo Han @ 2013-10-23 9:35 UTC (permalink / raw) To: 'Johan Hovold' Cc: 'Richard Purdie', 'Nicolas Ferre', linux-fbdev, linux-kernel, stable, 'Jingoo Han' On Wednesday, October 23, 2013 5:51 PM, Johan Hovold wrote: > On Wed, Oct 23, 2013 at 10:20:59AM +0900, Jingoo Han wrote: > > On Wednesday, October 23, 2013 2:27 AM, Johan Hovold wrote: > > > > > > The driver supports 16-bit brightness values, but the value returned > > > from get_brightness was truncated to eight bits. > > > > > > Cc: stable@vger.kernel.org > > > Signed-off-by: Johan Hovold <jhovold@gmail.com> > > > --- > > > drivers/video/backlight/atmel-pwm-bl.c | 4 ++-- > > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > > > diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c > > > index 66885fb..8aac273 100644 > > > --- a/drivers/video/backlight/atmel-pwm-bl.c > > > +++ b/drivers/video/backlight/atmel-pwm-bl.c > > > @@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) > > > static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > > > { > > > struct atmel_pwm_bl *pwmbl = bl_get_data(bd); > > > - u8 intensity; > > > + u32 intensity; > > > > > > if (pwmbl->pdata->pwm_active_low) { > > > intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > > > @@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > > > pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); > > > } > > > > > > - return intensity; > > > + return (u16)intensity; > > > > However, atmel_pwm_bl_get_intensity() should return 'int', > > instead of 'u16'. > > Yes, but the cast to int is implicit. Perhaps > > return (intensity & 0xffff); > > (or just a comment) would make it more clear why the cast is there. > > > Also, pwm_channel_readl() returns 'u32'. > > Yes, (and only the 16 least-significant bits are used). That and the > fact that the platform-data limits are currently unsigned long (I was > considering fixing this later) was why I preferred keeping all register > value manipulation in u32 and do a single cast at the end. > > > Then, how about the following? > > > > --- a/drivers/video/backlight/atmel-pwm-bl.c > > +++ b/drivers/video/backlight/atmel-pwm-bl.c > > @@ -70,17 +70,17 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) > > static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > > { > > struct atmel_pwm_bl *pwmbl = bl_get_data(bd); > > - u8 intensity; > > + u16 intensity; > > > > if (pwmbl->pdata->pwm_active_low) { > > - intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > > + intensity = (u16) pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > > pwmbl->pdata->pwm_duty_min; > > This would actually introduce a new conversion warning (unless you add > parentheses as well) as pwm_duty_min is unsigned long. Same below. > > > } else { > > - intensity = pwmbl->pdata->pwm_duty_max - > > + intensity = (u16) pwmbl->pdata->pwm_duty_max - > > pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); > > } > > > > - return intensity; > > + return (int)intensity; > > } > > However, if you feel strongly about this, I'll respin the series (a later > patch would likely no longer apply), use u16 and add casts to the two > assignments. Thank you for your kind and detailed description. :-) OK, I have no objection on your original patch. Would you re-send these patches with my Acked-by with CC'ing Andrew Morton, Tomi Valkeinen? Then, these patches can be merged through mm-tree. Best regards, Jingoo Han ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 2/9] backlight: atmel-pwm-bl: fix gpio polarity in remove [not found] <1382462819-28576-1-git-send-email-jhovold@gmail.com> 2013-10-22 17:26 ` [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness Johan Hovold @ 2013-10-22 17:26 ` Johan Hovold 2013-10-23 1:47 ` Jingoo Han 1 sibling, 1 reply; 9+ messages in thread From: Johan Hovold @ 2013-10-22 17:26 UTC (permalink / raw) To: Richard Purdie, Jingoo Han Cc: Nicolas Ferre, linux-fbdev, linux-kernel, Johan Hovold, stable Make sure to honour gpio polarity also at remove so that the backlight is actually disabled on boards with active-low enable pin. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> --- drivers/video/backlight/atmel-pwm-bl.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index 8aac273..3cb0094 100644 --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -205,8 +205,10 @@ static int atmel_pwm_bl_remove(struct platform_device *pdev) { struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev); - if (pwmbl->gpio_on != -1) - gpio_set_value(pwmbl->gpio_on, 0); + if (pwmbl->gpio_on != -1) { + gpio_set_value(pwmbl->gpio_on, + 0 ^ pwmbl->pdata->on_active_low); + } pwm_channel_disable(&pwmbl->pwmc); pwm_channel_free(&pwmbl->pwmc); -- 1.8.4 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH 2/9] backlight: atmel-pwm-bl: fix gpio polarity in remove 2013-10-22 17:26 ` [PATCH 2/9] backlight: atmel-pwm-bl: fix gpio polarity in remove Johan Hovold @ 2013-10-23 1:47 ` Jingoo Han 0 siblings, 0 replies; 9+ messages in thread From: Jingoo Han @ 2013-10-23 1:47 UTC (permalink / raw) To: 'Johan Hovold' Cc: 'Richard Purdie', 'Nicolas Ferre', linux-fbdev, linux-kernel, stable, 'Jingoo Han' On Wednesday, October 23, 2013 2:27 AM, Johan Hovold wrote: > > Make sure to honour gpio polarity also at remove so that the backlight > is actually disabled on boards with active-low enable pin. > > Cc: stable@vger.kernel.org > Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Best regards, Jingoo Han > --- > drivers/video/backlight/atmel-pwm-bl.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) ^ permalink raw reply [flat|nested] 9+ messages in thread
[parent not found: <1382522143-32072-1-git-send-email-jhovold@gmail.com>]
* [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness [not found] <1382522143-32072-1-git-send-email-jhovold@gmail.com> @ 2013-10-23 9:55 ` Johan Hovold 2013-10-25 11:08 ` Jean-Christophe PLAGNIOL-VILLARD 0 siblings, 1 reply; 9+ messages in thread From: Johan Hovold @ 2013-10-23 9:55 UTC (permalink / raw) To: Richard Purdie, Jingoo Han Cc: Nicolas Ferre, Tomi Valkeinen, Jean-Christophe Plagniol-Villard, Andrew Morton, linux-fbdev, linux-kernel, Johan Hovold, stable The driver supports 16-bit brightness values, but the value returned from get_brightness was truncated to eight bits. Cc: stable@vger.kernel.org Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> --- drivers/video/backlight/atmel-pwm-bl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index 66885fb..8aac273 100644 --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) { struct atmel_pwm_bl *pwmbl = bl_get_data(bd); - u8 intensity; + u32 intensity; if (pwmbl->pdata->pwm_active_low) { intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - @@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); } - return intensity; + return (u16)intensity; } static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl) -- 1.8.4 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness 2013-10-23 9:55 ` [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness Johan Hovold @ 2013-10-25 11:08 ` Jean-Christophe PLAGNIOL-VILLARD 2013-10-29 13:32 ` Johan Hovold 0 siblings, 1 reply; 9+ messages in thread From: Jean-Christophe PLAGNIOL-VILLARD @ 2013-10-25 11:08 UTC (permalink / raw) To: Johan Hovold Cc: Richard Purdie, Jingoo Han, Nicolas Ferre, Tomi Valkeinen, Andrew Morton, linux-fbdev, linux-kernel, stable On 11:55 Wed 23 Oct , Johan Hovold wrote: > The driver supports 16-bit brightness values, but the value returned > from get_brightness was truncated to eight bits. > > Cc: stable@vger.kernel.org > Acked-by: Jingoo Han <jg1.han@samsung.com> > Signed-off-by: Johan Hovold <jhovold@gmail.com> > --- > drivers/video/backlight/atmel-pwm-bl.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c > index 66885fb..8aac273 100644 > --- a/drivers/video/backlight/atmel-pwm-bl.c > +++ b/drivers/video/backlight/atmel-pwm-bl.c > @@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) > static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > { > struct atmel_pwm_bl *pwmbl = bl_get_data(bd); > - u8 intensity; > + u32 intensity; > > if (pwmbl->pdata->pwm_active_low) { > intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > @@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); > } > > - return intensity; > + return (u16)intensity; no cast mask it > } > > static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl) > -- > 1.8.4 > ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness 2013-10-25 11:08 ` Jean-Christophe PLAGNIOL-VILLARD @ 2013-10-29 13:32 ` Johan Hovold 0 siblings, 0 replies; 9+ messages in thread From: Johan Hovold @ 2013-10-29 13:32 UTC (permalink / raw) To: Jean-Christophe PLAGNIOL-VILLARD Cc: Johan Hovold, Richard Purdie, Jingoo Han, Nicolas Ferre, Tomi Valkeinen, Andrew Morton, linux-fbdev, linux-kernel, stable On Fri, Oct 25, 2013 at 01:08:36PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote: > On 11:55 Wed 23 Oct , Johan Hovold wrote: > > The driver supports 16-bit brightness values, but the value returned > > from get_brightness was truncated to eight bits. > > > > Cc: stable@vger.kernel.org > > Acked-by: Jingoo Han <jg1.han@samsung.com> > > Signed-off-by: Johan Hovold <jhovold@gmail.com> > > --- > > drivers/video/backlight/atmel-pwm-bl.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c > > index 66885fb..8aac273 100644 > > --- a/drivers/video/backlight/atmel-pwm-bl.c > > +++ b/drivers/video/backlight/atmel-pwm-bl.c > > @@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) > > static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > > { > > struct atmel_pwm_bl *pwmbl = bl_get_data(bd); > > - u8 intensity; > > + u32 intensity; > > > > if (pwmbl->pdata->pwm_active_low) { > > intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - > > @@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) > > pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); > > } > > > > - return intensity; > > + return (u16)intensity; > no cast mask it Yeah, perhaps that is better. I discussed this a bit with Jingoo Han in the thread of the original post. I'll respin. Thanks, Johan > > } > > > > static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl) > > -- > > 1.8.4 > > ^ permalink raw reply [flat|nested] 9+ messages in thread
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2013-10-22 17:26 ` [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness Johan Hovold
2013-10-23 1:20 ` Jingoo Han
2013-10-23 8:51 ` Johan Hovold
2013-10-23 9:35 ` Jingoo Han
2013-10-22 17:26 ` [PATCH 2/9] backlight: atmel-pwm-bl: fix gpio polarity in remove Johan Hovold
2013-10-23 1:47 ` Jingoo Han
[not found] <1382522143-32072-1-git-send-email-jhovold@gmail.com>
2013-10-23 9:55 ` [PATCH 1/9] backlight: atmel-pwm-bl: fix reported brightness Johan Hovold
2013-10-25 11:08 ` Jean-Christophe PLAGNIOL-VILLARD
2013-10-29 13:32 ` Johan Hovold
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