linux-toradex.git/drivers/pwm, branch v3.10.2 Linux kernel for Apalis and Colibri modules drivers/pwm: don't check resource with devm_ioremap_resource 2013-05-18T09:55:58+00:00 Wolfram Sang wsa@the-dreams.de 2013-05-12T13:19:50+00:00 362e9cd2f54e3c72a37ff8e3319366554e48c555 devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Stephen Warren <swarren@nvidia.com> 
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
pwm: lpc32xx: Don't change PWM_ENABLE bit in lpc32xx_pwm_config 2013-04-23T08:58:47+00:00 Axel Lin axel.lin@ingics.com 2013-04-23T06:02:49+00:00 affb923df96d6c927f9a3dfb0e6f4be940b185cd lpc32xx_pwm_config() is supposed to set duty_ns and period_ns, it should not change PWM_ENABLE bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
lpc32xx_pwm_config() is supposed to set duty_ns and period_ns,
it should not change PWM_ENABLE bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
pwm: lpc32xx: Properly set PWM_ENABLE bit in lpc32xx_pwm_[enable|disable] 2013-04-23T08:58:35+00:00 Axel Lin axel.lin@ingics.com 2013-04-23T06:01:31+00:00 08ee77b5a5de27ad63c92262ebcb4efe0da93b58 According to the LPC32x0 User Manual [1]: For both PWM1 and PWM2 Control Registers: BIT 31: This bit gates the PWM_CLK signal and enables the external output pin to the PWM_PIN_STATE logical level. 0 = PWM disabled. (Default) 1 = PWM enabled So in lpc32xx_pwm_enable(), we should set PWM_ENABLE bit. In lpc32xx_pwm_disable(), we should just clear PWM_ENABLE bit rather than write 0 to the register which will also clear PWMx_RELOADV and PWMx_DUTY bits. [1] http://www.nxp.com/documents/user_manual/UM10326.pdf Signed-off-by: Axel Lin <axel.lin@ingics.com> Tested-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
According to the LPC32x0 User Manual [1]:

For both PWM1 and PWM2 Control Registers:
BIT 31:
This bit gates the PWM_CLK signal and enables the external output pin
to the PWM_PIN_STATE logical level.

0 = PWM disabled. (Default)
1 = PWM enabled

So in lpc32xx_pwm_enable(), we should set PWM_ENABLE bit.
In lpc32xx_pwm_disable(), we should just clear PWM_ENABLE bit rather than
write 0 to the register which will also clear PWMx_RELOADV and PWMx_DUTY bits.

[1] http://www.nxp.com/documents/user_manual/UM10326.pdf

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
pwm: Constify OF match tables 2013-04-23T05:42:20+00:00 Thierry Reding thierry.reding@avionic-design.de 2013-04-18T08:04:14+00:00 f1a8870aeb5baeb58f0613d1f1e1dca967127fbd A few drivers already annotate this properly. Make the same change for all other OF supporting drivers. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> 
A few drivers already annotate this properly. Make the same change for
all other OF supporting drivers.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
pwm: puv3: Remove unused enabled filed from struct puv3_pwm_chip 2013-04-02T09:40:18+00:00 Axel Lin axel.lin@ingics.com 2013-03-31T15:01:11+00:00 a46ef4d5723aca785e6b03b7972dd83e43e73977 Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
pwm: pxa: Remove PWM_ID_BASE macro 2013-04-02T09:40:17+00:00 Axel Lin axel.lin@ingics.com 2013-04-01T07:41:22+00:00 22976a5dada65a0f44918e91c5f1fb5041dc1d5e PWM_ID_BASE() is not used after convert to PWM framework, remove it. Also update driver_data field of struct platform_device_id accordingly. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
PWM_ID_BASE() is not used after convert to PWM framework, remove it.
Also update driver_data field of struct platform_device_id accordingly.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
pwm: spear: Remove unused *dev from struct spear_pwm_chip 2013-04-02T09:40:00+00:00 Axel Lin axel.lin@ingics.com 2013-04-01T04:29:48+00:00 b3fef7f10010e7946b3db1a34d8e0208e4f10001 Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Shiraz Hashim <shiraz.hashim@st.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
pwm: mxs: Remove unused *dev from struct mxs_pwm_chip 2013-04-02T09:33:05+00:00 Axel Lin axel.lin@ingics.com 2013-04-01T02:48:13+00:00 4e61573df893abcb7b647fc4f3f4b60819704883 Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
pwm: twl: Return proper error if twl6030_pwm_enable() fails 2013-04-02T09:32:14+00:00 Axel Lin axel.lin@ingics.com 2013-03-31T15:07:30+00:00 c8e4df3109646762f21c6e288187ec395fdf67be Return proper error instead of 0 if twl6030_pwm_enable() fails. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
Return proper error instead of 0 if twl6030_pwm_enable() fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
pwm: pxa: Remove clk_enabled field from struct pxa_pwm_chip 2013-04-02T09:31:37+00:00 Axel Lin axel.lin@ingics.com 2013-03-31T15:04:31+00:00 b014a30c5991e67aa90b6ff9bd4ec16435bbcefd clk_enable/clk_disable maintain an enable_count, clk_prepare and clk_unprepare also maintain a prepare_count. These APIs will do prepare/enable when the first user calling these APIs, and do disable/unprepare when the corresponding counter reach 0. Thus We don't need to maintain a clk_enabled counter here. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
clk_enable/clk_disable maintain an enable_count, clk_prepare and clk_unprepare
also maintain a prepare_count. These APIs will do prepare/enable when the first
user calling these APIs, and do disable/unprepare when the corresponding counter
reach 0. Thus We don't need to maintain a clk_enabled counter here.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>