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2017-08-21pwm: tiehrpwm: Miscellaneous coding style fixupsThierry Reding1-50/+62
I noticed most of these while reviewing another patch and thought I'd fix them while at it. These are mostly changes to make variable types more strict and whitespace fixups. Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-08-21pwm: tiecap: Set driver data before runtime PM enableThierry Reding1-1/+1
Runtime PM callbacks can be run right after runtime PM is enabled, so make sure to set the driver data before that. This is unlikely to ever happen with the current driver, but it doesn't hurt to follow best practices anyway. Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-08-21pwm: tiecap: Miscellaneous coding style fixupsThierry Reding1-41/+47
I noticed most of these while reviewing another patch and thought I'd fix them while at it. These are mostly changes to make variable types more strict and whitespace fixups. Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-08-21dt-bindings: pwm: tiecap: Add TI 66AK2G SoC specific compatibleVignesh R1-0/+1
Add a new compatible string "ti,k2g-ecap" to support PWM ECAP IP of TI 66AK2G SoC. Signed-off-by: Vignesh R <vigneshr@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-08-21pwm: tiehrpwm: fix clock imbalance in probe error pathJohan Hovold1-1/+6
Make sure to unprepare the clock before returning on late probe errors. Fixes: b388f15fd14c ("pwm: pwm-tiehrpwm: Use clk_enable/disable instead clk_prepare/unprepare.") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-08-21pwm: tiehrpwm: Fix runtime PM imbalance at unbindJohan Hovold1-1/+0
Remove unbalanced RPM put at driver unbind which resulted in a negative usage count. Fixes: 19891b20e7c2 ("pwm: pwm-tiehrpwm: PWM driver support for EHRPWM") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-08-21pwm: Kconfig: Enable pwm-tiecap to be built for KeystoneVignesh R1-1/+1
66AK2G SoC has ECAP subsystem that is used as pwm-backlight provider for display. Hence, enable pwm-tiecap driver to be built for Keystone architecture. Signed-off-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-08-21pwm: Add ZTE ZX PWM device driverShawn Guo3-0/+292
It adds PWM device driver for ZTE ZX family SoCs. The PWM controller supports 4 devices with polarity configuration. The driver has been tested with pwm-regulator support to scale core voltage via cpufreq. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>