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2016-09-08pwm: sti: Supply PWM Capture clock handlingLee Jones1-0/+25
ST's PWM IP is supplied by 2 different clocks. One for PWM output and the other for capture. This patch provides clock handling for the latter. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-09-08pwm: sti: Supply PWM capture register addresses and bit locationsLee Jones1-0/+25
This is in preparation for subsequent patches that add support for PWM capture to this driver. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-09-08pwm: sti: Only request clock rate when neededLee Jones1-8/+8
In the original code the clock rate was only obtained during initialisation; however, the rate may change between then and its use. This patch ensures the correct rate is acquired just before use. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-09-08pwm: sti: Reorganise register names in preparation for new functionalityLee Jones1-35/+41
Exciting functionality is on the way to this device. But before we can add it, we need to do some basic housekeeping so the additions can be added cleanly. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-09-08pwm: sti: Rename channel => deviceLee Jones1-16/+16
This is to bring the terminology used in the STi PWM driver more into line with the PWM subsystem. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-09-08dt-bindings: pwm: sti: Update DT bindings for capture supportLee Jones1-3/+5
In order to support capture of PWM signals a new clock as well as an interrupt line are required. Furthermore a new property is introduced that allows the number of capture channels to be specified. Typically there will be less capture channels than output channels, since all channels have the latter capability, but only some have support for capture. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-09-08pwm: lpc-18xx: use pwm_set_chip_dataoliver@schinagl.nl1-4/+8
The lpc-18xx driver currently manipulates the pwm_device struct directly rather than using the pwm_set_chip_data() function. While the current method may save a clock cycle or two, using the explicit function call makes it more obvious that data is set to the local chip data pointer. Signed-off-by: Olliver Schinagl <oliver@schinagl.nl> Reviewed-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-09-08pwm: sunxi: Add H3 supportMilo Kim2-0/+10
H3 PWM controller has same register layout as sun4i driver, so it works by adding H3 specific data. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: linux-pwm@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Milo Kim <woogyom.kim@gmail.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2016-09-08pwm: Add support for Meson PWM ControllerNeil Armstrong3-0/+530
Add support for the PWM controller found in the Amlogic SoCs. This driver supports the Meson8b and GXBB SoCs. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Tested-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>