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* PWM: Correct misspellings of "module" in context of PWMRobert P. J. Day2016-10-06-3/+3
| | | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Acked-by: Heiko Schocher <hs@denx.de>
* rk_pwm: remove grf setting code from driverKever Yang2016-09-22-11/+0
| | | | | | | | | We consider the grf setting for pwm controller select as the system operation instead of driver operation, move it to soc init, let's remove it from pwm driver first. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org>
* rk_pwm: use clock framework API to get module clockKever Yang2016-09-22-3/+14
| | | | | | | | | This patch use clock API instead of hardcode for get pwm clock. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> Fix printf() to debug() nit: Signed-off-by: Simon Glass <sjg@chromium.org>
* exynos: pwm: Add a driver for the exynos5 PWMSimon Glass2016-05-25-0/+130
| | | | | | | | This driver supports the standard PWM API. There are 5 PWMs. Four are used normally and the last is normally used as a timer. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* tegra: video: Move LCD driver to use the DM PWM driverSimon Glass2016-02-16-0/+1
| | | | | | | | Use the driver-model PWM driver in preference to the old code. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: Convert CONFIG_PWM_TEGRA to KconfigSimon Glass2016-02-16-0/+8
| | | | | | | | Move this option to Kconfig and clean up the header files. Adjust the only user (the LCD driver) to work with the new driver. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: pwm: Add a driver for the tegra PWMSimon Glass2016-02-16-0/+88
| | | | | | | | This PWM supports four channels. The driver always uses the 32KHz clock, and adjusts the duty cycle accordingly. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* pwm: rockchip: Add a PWM driver for Rockchip SoCsSimon Glass2016-01-21-0/+113
| | | | | | Add a simple driver which implements the standard PWM uclass interface. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: pwm: Add a PWM uclassSimon Glass2016-01-21-0/+47
| | | | | | | Add a uclass that supports Pulse Width Modulation (PWM) devices. It provides methods to enable/disable and configure the device. Signed-off-by: Simon Glass <sjg@chromium.org>
* pwm: imx: Remove unreachable codeAxel Lin2015-05-26-4/+0
| | | | | | | | The break after return is unreachable code, remove it. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Stefano Babic <sbabic@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
* pwm: imx: Prevent NULL pointer dereferenceAxel Lin2015-05-26-0/+12
| | | | | | | | | pwm_id_to_reg() can return NULL, so add NULL testing to prevent NULL pointer dereference. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Stefano Babic <sbabic@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
* bugfix i.mx6 pwm: prevent overflow of period_c * duty_nsBrecht Neyrinck2015-05-15-1/+1
| | | | | | | Prevent overflow by casting duty_ns to ull first. This bug came up when trying to create a 200 Hz PWM Signed-off-by: Brecht Neyrinck <bnrn@psicontrol.com> Acked-by: Heiko Schocher<hs@denx.de>
* pwm, imx6: add support for pwm modul on imx6Heiko Schocher2014-07-23-0/+161
add basic support for the pwm modul found on imx6. Pieces of this code are based on linux code from drivers/pwm/pwm-imx.c Commit "cd3de83f1476 Linux 3.16-rc4" Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
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