On Thu, Jun 14, 2012 at 18:23:29, Thierry Reding wrote: > On Thu, Jun 14, 2012 at 12:47:13PM +0000, Hebbar, Gururaja wrote: > > On Tue, Apr 10, 2012 at 20:36:23, Thierry Reding wrote: > > > This patch series adds very rudimentary device-tree support for PWM > > > devices. With all of these patches applied (plus one board-specific > > > patch that is not included), I'm able to control the backlight on the > > > device I'm working on using the sysfs interface provided by the pwm-bl > > > driver and the backlight class. > > > > > > This series is based on Sascha Hauer's series of patches[0] to add a > > > generic PWM framework. The first patch in this series is taken from > > > Sascha's branch, while the second patch enables each PWM chip to provide > > > multiple PWM devices (the Blackfin and PXA drivers have been ported to > > > the framework for reference). Currently a global namespace is still > > > provided to keep backwards-compatibility with the legacy PWM API. In > > > order to achieve this, the number of global PWM devices is limited to > > > 1024. However, patch 2 introduces per-chip indexing of PWM devices in > > > the core and patch 4 adds an API to request a PWM device using a lookup > > > table registered by board setup code. They are supposed to eventually > > > replace pwm_request() and allow to get rid of the global namespace. The > > > device tree support code does not use the global namespace. > > > > > ..snip.. > > ..snip.. > > > > > > > > The whole series is based on the linux-next tree from 20120405. I think > > > I've addressed all of the concerns raised in the first five versions. I > > > have also pushed this version of the series to the PWM subsystem > > > repository[1]. > > > > > > Thierry > > > > > > [0]: http://git.pengutronix.de/?p=imx/linux-2.6.git;a=shortlog;h=refs/heads/pwmlib > > > [1]: http://gitorious.org/linux-pwm/linux-pwm/trees/pwm-v6 > > > ..snip.. ..snip.. > > > > > > > I am planning to add PWM support in Linux for TI AM335x SOC. > > I am taking your new PWM framework as reference. > > > > I see a lot of ack's for the patches. I see that you are maintaining these patches in a separate repo. > > However, I couldn't find any of these > > patches in the mainline kernel (including recent 3.5-rc2). > > Do you have any plans for pushing this again to mainline kernel. > > Yes, as a matter of fact I'm in the process of getting the series ready for > inclusion into linux-next. I expect them to go into 3.6. > > Thierry > Thanks. Eagerly looking forward to it. Thanks & Regards, Gururaja -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
