Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NShiraz Hashim <shiraz.hashim@st.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>

The logic to check return value of clk_enable() and clk_prepare() is reversed,
fix it.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Cc: stable@vger.kernel.org
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>

Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

spear_pwm_config() is not referenced outside of this file, make it static.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>

Add support for PWM chips present on SPEAr platforms. These PWM
chips support 4 channel output with programmable duty cycle and
frequency.

More details on these PWM chips can be obtained from relevant
chapter of reference manual, present at following[1] location.

1. http://www.st.com/internet/mcu/product/251211.jsp

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: NShiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: NVipin Kumar <vipin.kumar@st.com>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>