linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2015-08-17	pwm: kona: Modify settings application sequence	Jonathan Richardson	1	-9/+38
	Update the driver so that settings are applied in accordance with the most recent version of the hardware spec. The revised sequence clears the trigger bit, waits 400ns, writes settings, sets the trigger bit, and waits another 400ns. This corrects an issue where occasionally a requested change was not properly reflected in the PWM output. Reviewed-by: Arun Ramamurthy <arunrama@broadcom.com> Reviewed-by: Scott Branden <sbranden@broadcom.com> Tested-by: Scott Branden <sbranden@broadcom.com> Reviewed-by: Tim Kryger <tim.kryger@gmail.com> Signed-off-by: Jonathan Richardson <jonathar@broadcom.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2015-07-20	pwm: Make use of pwm_get_xxx() helpers where appropriate	Boris Brezillon	1	-1/+2
	Use the pwm_get_xxx() helpers instead of directly accessing the fields in struct pwm_device. This will allow us to smoothly move to the atomic update approach. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2015-07-20	pwm: Add the pwm_is_enabled() helper	Boris Brezillon	1	-2/+2
	Some PWM drivers are testing the PWMF_ENABLED flag. Create a helper function to hide the logic behind enabled test. This will allow us to smoothly move from the current approach to an atomic PWM update approach. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2015-06-12	pwm: bcm-kona: Don't set polarity in probe	Arun Ramamurthy	1	-6/+3
	Omit setting the polarity to normal during probe and instead use the new pwmchip_add_with_polarity() function to register a PWM chip with inverse polarity by default for all channels to reflect the hardware default. Signed-off-by: Arun Ramamurthy <arunrama@broadcom.com> Reviewed-by: Ray Jui <rjui@broadcom.com> Signed-off-by: Scott Branden <sbranden@broadcom.com> Signed-off-by: Tim Kryger <tim.kryger@gmail.com> Signed-off-by: Jonathan Richardson <jonathar@broadcom.com> [thierry.reding@gmail.com: use pwmchip_add_with_polarity()] Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2014-04-28	pwm: kona: Introduce Kona PWM controller support	Tim Kryger	1	-0/+318
	Add support for the six-channel Kona PWM controller found on Broadcom mobile SoCs like bcm281xx. Signed-off-by: Tim Kryger <tim.kryger@linaro.org> Reviewed-by: Alex Elder <elder@linaro.org> Reviewed-by: Markus Mayer <markus.mayer@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>