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path: root/drivers/pwm/pwm-renesas-tpu.c
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2020-03-30pwm: renesas-tpu: Drop confusing registered messageGeert Uytterhoeven1-2/+0
During device probe, the message TPU PWM -1 registered is printed. While the "-1" looks suspicious, it is perfectly normal for a device instantiated from DT. Remove the message, as there are no non-DT users left, and other drivers don't print such messages either. Signed-off-by: Geert Uytterhoeven <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Acked-by: Uwe Kleine-König <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2020-03-30pwm: renesas-tpu: Fix late Runtime PM enablementGeert Uytterhoeven1-5/+4
Runtime PM should be enabled before calling pwmchip_add(), as PWM users can appear immediately after the PWM chip has been added. Likewise, Runtime PM should always be disabled after the removal of the PWM chip, even if the latter failed. Fixes: 99b82abb0a35b073 ("pwm: Add Renesas TPU PWM driver") Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2018-10-12pwm: Use SPDX identifier for Renesas driversWolfram Sang1-9/+1
Signed-off-by: Wolfram Sang <[email protected]> Reviewed-by: Simon Horman <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2017-08-18pwm: renesas-tpu: Remove support for SH7372Simon Horman1-1/+0
Remove support for the SH7372 (SH-Mobile AP4) from the renesas-tpu driver. Commit edf4100906044225 ("ARM: shmobile: sh7372 dtsi: Remove Legacy file") removed this SoC from the kernel in v4.1. Acked-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Simon Horman <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2015-07-20pwm: Add the pwm_is_enabled() helperBoris Brezillon1-1/+1
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 <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2014-10-20pwm: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <[email protected]>
2014-05-21pwm: renesas-tpu: remove unused struct tpu_pwm_platform_dataAlexandre Belloni1-16/+3
The struct is not used anymore and the polarity initialization will be done using the PWM lookup table (or device tree). Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Laurent Pinchart <[email protected]> Acked-by: Simon Horman <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2014-04-28pwm: renesas-tpu: Remove unnecessary OOM messagesJingoo Han1-3/+1
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2013-09-03pwm: simplify use of devm_ioremap_resourceJulia Lawall1-5/+0
Remove unneeded error handling on the result of a call to platform_get_resource when the value is passed to devm_ioremap_resource. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression pdev,res,n,e,e1; expression ret != 0; identifier l; @@ - res = platform_get_resource(pdev, IORESOURCE_MEM, n); ... when != res - if (res == NULL) { ... \(goto l;\|return ret;\) } ... when != res + res = platform_get_resource(pdev, IORESOURCE_MEM, n); e = devm_ioremap_resource(e1, res); // </smpl> Signed-off-by: Julia Lawall <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2013-09-03pwm: renesas-tpu: Add DT supportLaurent Pinchart1-7/+34
Specify DT bindings for the TPU PWM controller and add OF support to the driver. Signed-off-by: Laurent Pinchart <[email protected]> Acked-by: Stephen Warren <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2013-06-26pwm: renesas-tpu: Add MODULE_ALIAS to make module auto loading workAxel Lin1-0/+1
This driver can be built as module, add MODULE_ALIAS to make module auto loading work. Signed-off-by: Axel Lin <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2013-06-25pwm: renesas-tpu: fix return value check in tpu_probe()Wei Yongjun1-4/+2
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 <[email protected]> Reviewed-by: Axel Lin <[email protected]> Acked-by: Laurent Pinchart <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2013-06-21pwm: Add Renesas TPU PWM driverLaurent Pinchart1-0/+475
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 <[email protected]> Signed-off-by: Axel Lin <[email protected]> Tested-by: Simon Horman <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
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