Re: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-27 Thread Thierry Reding
On Thu, Sep 27, 2012 at 09:24:47AM +, Philip, Avinash wrote: > On Wed, Sep 26, 2012 at 22:19:49, Thierry Reding wrote: > > On Wed, Sep 26, 2012 at 09:27:51AM -0600, Stephen Warren wrote: > > > On 09/25/2012 10:35 PM, Philip, Avinash wrote: > > > > On Tue, Sep 25, 2012 at 11:49:14, Stephen Warre

RE: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-27 Thread Philip, Avinash
On Wed, Sep 26, 2012 at 22:19:49, Thierry Reding wrote: > On Wed, Sep 26, 2012 at 09:27:51AM -0600, Stephen Warren wrote: > > On 09/25/2012 10:35 PM, Philip, Avinash wrote: > > > On Tue, Sep 25, 2012 at 11:49:14, Stephen Warren wrote: > > >> On 09/24/2012 10:29 PM, Philip, Avinash wrote: > > >>> On

Re: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-26 Thread Thierry Reding
On Wed, Sep 26, 2012 at 09:27:51AM -0600, Stephen Warren wrote: > On 09/25/2012 10:35 PM, Philip, Avinash wrote: > > On Tue, Sep 25, 2012 at 11:49:14, Stephen Warren wrote: > >> On 09/24/2012 10:29 PM, Philip, Avinash wrote: > >>> On Fri, Sep 21, 2012 at 23:13:39, Stephen Warren wrote: > On 09

Re: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-26 Thread Stephen Warren
On 09/25/2012 10:35 PM, Philip, Avinash wrote: > On Tue, Sep 25, 2012 at 11:49:14, Stephen Warren wrote: >> On 09/24/2012 10:29 PM, Philip, Avinash wrote: >>> On Fri, Sep 21, 2012 at 23:13:39, Stephen Warren wrote: On 09/21/2012 12:03 AM, Philip, Avinash wrote: > Hi Stephen, > > On

RE: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-25 Thread Philip, Avinash
On Tue, Sep 25, 2012 at 11:49:14, Stephen Warren wrote: > On 09/24/2012 10:29 PM, Philip, Avinash wrote: > > On Fri, Sep 21, 2012 at 23:13:39, Stephen Warren wrote: > >> On 09/21/2012 12:03 AM, Philip, Avinash wrote: > >>> Hi Stephen, > >>> > >>> On Fri, Sep 21, 2012 at 10:46:45, Stephen Warren wro

Re: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-24 Thread Stephen Warren
On 09/24/2012 10:29 PM, Philip, Avinash wrote: > On Fri, Sep 21, 2012 at 23:13:39, Stephen Warren wrote: >> On 09/21/2012 12:03 AM, Philip, Avinash wrote: >>> Hi Stephen, >>> >>> On Fri, Sep 21, 2012 at 10:46:45, Stephen Warren wrote: On 09/20/2012 10:51 PM, Philip, Avinash wrote: > Some b

RE: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-24 Thread Philip, Avinash
On Fri, Sep 21, 2012 at 23:13:39, Stephen Warren wrote: > On 09/21/2012 12:03 AM, Philip, Avinash wrote: > > Hi Stephen, > > > > On Fri, Sep 21, 2012 at 10:46:45, Stephen Warren wrote: > >> On 09/20/2012 10:51 PM, Philip, Avinash wrote: > >>> Some backlights perform poorly when driven by a PWM wit

Re: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-21 Thread Stephen Warren
On 09/21/2012 12:03 AM, Philip, Avinash wrote: > Hi Stephen, > > On Fri, Sep 21, 2012 at 10:46:45, Stephen Warren wrote: >> On 09/20/2012 10:51 PM, Philip, Avinash wrote: >>> Some backlights perform poorly when driven by a PWM with a short >>> duty-cycle. For such devices, the low threshold can be

RE: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-20 Thread Philip, Avinash
Hi Stephen, On Fri, Sep 21, 2012 at 10:46:45, Stephen Warren wrote: > On 09/20/2012 10:51 PM, Philip, Avinash wrote: > > Some backlights perform poorly when driven by a PWM with a short > > duty-cycle. For such devices, the low threshold can be used to specify a > > lower bound for the duty-cycle

Re: [PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-20 Thread Stephen Warren
On 09/20/2012 10:51 PM, Philip, Avinash wrote: > Some backlights perform poorly when driven by a PWM with a short > duty-cycle. For such devices, the low threshold can be used to specify a > lower bound for the duty-cycle and should be chosen to exclude the > problematic range. > > This patch adds

[PATCH v2] pwm_backlight: Add device tree support for Low Threshold Brightness

2012-09-20 Thread Philip, Avinash
Some backlights perform poorly when driven by a PWM with a short duty-cycle. For such devices, the low threshold can be used to specify a lower bound for the duty-cycle and should be chosen to exclude the problematic range. This patch adds support for an optional low-threshold-brightness property.