03 Sep, 2013
1 commit
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ecap_pwm_save_context() and ecap_pwm_restore_context() are only used
when CONFIG_PM_SLEEP is selected.drivers/pwm/pwm-tiecap.c:293:13: warning: 'ecap_pwm_save_context' defined but not used [-Wunused-function]
drivers/pwm/pwm-tiecap.c:302:13: warning: 'ecap_pwm_restore_context' defined but not used [-Wunused-function]Signed-off-by: Jingoo Han
Signed-off-by: Thierry Reding
18 May, 2013
1 commit
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devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.Signed-off-by: Wolfram Sang
Acked-by: Stephen Warren
26 Mar, 2013
1 commit
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Both ecap_pwm_save_context() and ecap_pwm_restore_context() are only used in
this file, make them static.Signed-off-by: Axel Lin
Signed-off-by: Thierry Reding
11 Mar, 2013
1 commit
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This patch adds CONFIG_PM_SLEEP to suspend/resume functions to fix
the following build warning when CONFIG_PM_SLEEP is not selected.drivers/pwm/pwm-tiecap.c:314:12: warning: 'ecap_pwm_suspend' defined but not used [-Wunused-function]
drivers/pwm/pwm-tiecap.c:328:12: warning: 'ecap_pwm_resume' defined but not used [-Wunused-function]Signed-off-by: Jingoo Han
Signed-off-by: Thierry Reding
27 Feb, 2013
1 commit
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Pull PWM changes from Thierry Reding:
"A new driver has been added to support the PWM mode of the timer
counter blocks found on Atmel AT91 SoCs. The VT8500 driver now
supports changing the PWM signal polarity and the TI drivers (EHRPWM
and ECAP) gained suspend and resume functionality.User drivers can now query the core for whether access to a PWM device
will sleep (if the PWM chip is on a slow bus such as I2C or SPI).The pwm-backlight driver now handles the backlight BL_CORE_FBBLANK
state in addition to the FB layer's blanking states.To round things off, a few fixes and cleanups are also included"
* tag 'for-3.9-rc1' of git://gitorious.org/linux-pwm/linux-pwm:
pwm: twl: Use to_twl() instead of container_of()
pwm: tegra: assume CONFIG_OF
pwm_backlight: Validate dft_brightness in main probe function
pwm: Export pwm_{set,get}_chip_data()
pwm: Make Kconfig entries more consistent
pwm: Add can_sleep property to drivers
pwm: Add pwm_can_sleep() as exported API to users
pwm-backlight: handle BL_CORE_FBBLANK state
pwm: pwm-tiecap: Low power sleep support
pwm: pwm-tiehrpwm: Low power sleep support
pwm: pwm-tiehrpwm: Update the clock handling of pwm-tiehrpwm driver
pwm: vt8500: Add polarity support
pwm: vt8500: Register write busy test performed incorrectly
pwm: atmel: add Timer Counter Block PWM driver
23 Jan, 2013
1 commit
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Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.Signed-off-by: Thierry Reding
Acked-by: Viresh Kumar
Signed-off-by: Greg Kroah-Hartman
17 Jan, 2013
1 commit
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In low power modes of AM33XX platforms, peripherals power is cut off.
This patch supports low power sleep transition support for ECAP driver.Signed-off-by: Philip Avinash
Signed-off-by: Thierry Reding
20 Dec, 2012
1 commit
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Pull pwm changes from Thierry Reding:
"A new driver has been added for the SPEAr platform and the
TWL4030/6030 driver has been replaced by two drivers that control the
regular PWMs and the PWM driven LEDs provided by the chips.The vt8500, tiecap, tiehrpwm, i.MX, LPC32xx and Samsung drivers have
all been improved and the device tree bindings now support the PWM
signal polarity."Fix up trivial conflicts due to __devinit/exit removal.
* tag 'for-3.8-rc1' of git://gitorious.org/linux-pwm/linux-pwm: (21 commits)
pwm: samsung: add missing s3c->pwm_id assignment
pwm: lpc32xx: Set the chip base for dynamic allocation
pwm: lpc32xx: Properly disable the clock on device removal
pwm: lpc32xx: Fix the PWM polarity
pwm: i.MX: eliminate build warning
pwm: Export of_pwm_xlate_with_flags()
pwm: Remove pwm-twl6030 driver
pwm: New driver to support PWM driven LEDs on TWL4030/6030 series of PMICs
pwm: New driver to support PWMs on TWL4030/6030 series of PMICs
pwm: pwm-tiehrpwm: pinctrl support
pwm: tiehrpwm: Add device-tree binding
pwm: pwm-tiehrpwm: Adding TBCLK gating support.
pwm: pwm-tiecap: pinctrl support
pwm: tiecap: Add device-tree binding
pwm: Add TI PWM subsystem driver
pwm: Device tree support for PWM polarity
pwm: vt8500: Ensure PWM clock is enabled during pwm_config
pwm: vt8500: Fix build error
pwm: spear: Staticize spear_pwm_config()
pwm: Add SPEAr PWM chip driver support
...
29 Nov, 2012
3 commits
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CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.Signed-off-by: Bill Pemberton
Acked-by: Thierry Reding
Signed-off-by: Greg Kroah-Hartman -
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.Signed-off-by: Bill Pemberton
Acked-by: Thierry Reding
Signed-off-by: Greg Kroah-Hartman -
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.Signed-off-by: Bill Pemberton
Acked-by: Thierry Reding
Signed-off-by: Greg Kroah-Hartman
28 Nov, 2012
2 commits
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Enable pinctrl for pwm-tiecap if pinctrl driver available, else
bail out with warning message.Signed-off-by: Philip, Avinash
Signed-off-by: Thierry Reding -
This patch
1. Add support for device-tree binding for ECAP APWM driver.
2. Set size of pwm-cells set to 3 to support PWM channel number, PWM
period & polarity configuration from device tree.
3. Add enable/disable clock gating in PWM subsystem common config space.
4. When here set .owner member in platform_driver structure to
THIS_MODULE.Signed-off-by: Philip, Avinash
Cc: Grant Likely
Cc: Rob Herring
Cc: Rob Landley
Signed-off-by: Thierry Reding
06 Oct, 2012
1 commit
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Make sure the duty-cycle and period passed in are not negative. This
should eventually be made implicit by making them unsigned. While at
it, the drivers' .config() implementations can have the equivalent
checks removed.Signed-off-by: Thierry Reding
Cc: Shawn Guo
Cc: Mark Brown
Cc: Arnd Bergmann
Cc: Sachin Kamat
Cc: Axel Lin
Cc: Kukjin Kim
Cc: Jingoo Han
Cc: Jonghwan Choi
Cc: Sascha Hauer
Cc: "Philip, Avinash"
Cc: Vaibhav Bedia
Acked-by: Jingoo Han
10 Sep, 2012
2 commits
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ECAP APWM hardware supports polarity configuration of PWM output.
This commit adds support for polarity configuration of ECAP APWM.Signed-off-by: Philip, Avinash
Signed-off-by: Thierry Reding -
APWM mode is enabled while configuring PWM device. This was done to
handle shadow & immediate mode update of period and compare registers.
However, leaving it enabled after configuring will cause APWM output on
PWM pin even before enabling PWM device.
Fix the same by disabling APWM mode after configuring if PWM device is
not running.Signed-off-by: Philip, Avinash
Signed-off-by: Thierry Reding
17 Aug, 2012
1 commit
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The implementation in devm_request_and_ioremap() already shows error message,
so no need to show dev_err again if devm_request_and_ioremap() fails.Signed-off-by: Axel Lin
Cc: Stephen Warren
Cc: Philip, Avinash
Signed-off-by: Thierry Reding
26 Jul, 2012
1 commit
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ECAP hardware on AM33XX SOC supports auxiliary PWM (APWM) feature. This
commit adds PWM driver support for ECAP hardware on AM33XX SOC.In the ECAP hardware, each PWM pin can also be configured to be in
capture mode. Current implementation only supports PWM mode of
operation. Also, hardware supports sync between multiple PWM pins but
the driver supports simple independent PWM functionality.Reviewed-by: Vaibhav Bedia
Signed-off-by: Philip, Avinash
Signed-off-by: Thierry Reding