Linux - Linux kernel mainline tree

	Commit message (Collapse)	Author	Age	Files	Lines
*	misc: atmel_tclib: get and use slow clock	Boris Brezillon	2015-10-06	1	-7/+19
\| \| \| \| \| \| \| \| \| \| \| \| \| \|	Commit dca1a4b5ff6e ("clk: at91: keep slow clk enabled to prevent system hang") added a workaround for the slow clock as it is not properly handled by its users. Get and use the slow clock as it is necessary for the timer counters. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Thierry Reding <thierry.reding@gmail.com>
*	pwm: Add the pwm_is_enabled() helper	Boris Brezillon	2015-07-20	1	-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 <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
*	pwm: drop owner assignment from platform_drivers	Wolfram Sang	2014-10-20	1	-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 <wsa@the-dreams.de>
*	ARM: at91/tclib: move initialization from alloc to probe	Gaël PORTAY	2014-09-08	1	-1/+1
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Move resource retrieval from atmel_tc_alloc to tc_probe to avoid lately reporting resource related issues when a TC block user request a TC block. Moreover, resources retrieval are usually done in the probe function, thus moving them add some consistency with other drivers. Initialization is done once, ie not every time a tc block is requested. If it fails, the device is not appended to the list of tc blocks. Furhermore, the device id is retrieved at probe as well, avoiding parsing DT every time the user requests of tc block. Signed-off-by: Gaël PORTAY <gael.portay@gmail.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
*	pwm: atmel-tcb: fix max time computation for slow clk source	Boris BREZILLON	2013-09-19	1	-1/+1
\| \| \| \| \| \| \| \| \|	Use the the tcb counter width to compute the maximum time that can be represented using the slow clock source instead of the static 16 bit width. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
*	pwm: atmel-tcb: add missing clk source config	Boris BREZILLON	2013-09-19	1	-0/+2
\| \| \| \| \| \| \| \| \|	Clock source changes are never applied to the CMR register. This may lead to wrong period/duty cycle configuration. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
*	pwm: Fill in missing .owner fields	Thierry Reding	2013-06-12	1	-0/+1
\| \| \| \| \| \| \|	Some drivers don't set the .owner fields of the struct device_driver or struct pwm_ops, which causes the module usage count to become wrong. Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
*	pwm: atmel-tcb: prepare clk before calling enable	Boris BREZILLON	2013-06-12	1	-2/+2
\| \| \| \| \| \| \| \|	Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to avoid common clk framework warnings. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
*	pwm: atmel-tcb: Add .owner to struct pwm_ops	Axel Lin	2013-04-02	1	-0/+1
\| \| \| \| \| \| \| \|	Add missing .owner of struct pwm_ops. This prevents the module from being removed from underneath its users. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
*	pwm: atmel: add Timer Counter Block PWM driver	Boris BREZILLON	2013-01-08	1	-0/+445
	This patch adds a PWM driver based on Atmel Timer Counter Block. The Timer Counter Block is used in Waveform generator mode. A Timer Counter Block provides up to 6 PWM devices grouped by 2: * group 0 = PWM 0 and 1 * group 1 = PWM 2 and 3 * group 2 = PMW 4 and 5 PWM devices in a given group must be configured with the same period value. If a PWM device in a group tries to change the period value and the other device is already configured with a different value an error will be returned. This driver requires device tree support. The Timer Counter Block number used to create a PWM chip is given by the tc-block field in an "atmel,tcb-pwm" compatible node. This patch was tested on kizbox board (at91sam9g20 SoC) with pwm-leds. Signed-off-by: Boris BREZILLON <linux-arm@overkiz.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>