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path: root/drivers/pwm/pwm-renesas-tpu.c
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* pwm: renesas-tpu: Add MODULE_ALIAS to make module auto loading workAxel Lin2013-06-26
| | | | | | | | This driver can be built as module, add MODULE_ALIAS to make module auto loading work. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
* pwm: renesas-tpu: fix return value check in tpu_probe()Wei Yongjun2013-06-25
| | | | | | | | | | | In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Axel Lin <axel.lin@ingics.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
* pwm: Add Renesas TPU PWM driverLaurent Pinchart2013-06-21
The Timer Pulse Unit (TPU) is a 4-channels 16-bit timer used to generate waveforms. This driver exposes PWM functions through the PWM API for other drivers to use. The code is loosely based on the leds-renesas-tpu driver by Magnus Damm and the TPU PWM driver shipped in the Armadillo EVA 800 kernel sources. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Simon Horman <horms@verge.net.au> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>