pinctrl: SPEAr3xx: correct register space to configure pwm

To have pwm on pad no. 34 we also need to select between pwm and SD_LED
functions. Add this to pwm pin mux register configuration.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/spear/pinctrl-spear320.c

@@ -2239,6 +2239,10 @@ static struct spear_muxreg pwm2_pin_34_muxreg[] = {
 		.reg = PMX_CONFIG_REG,
 		.mask = PMX_SSP_CS_MASK,
 		.val = 0,
+	}, {
+		.reg = MODE_CONFIG_REG,
+		.mask = PMX_PWM_MASK,
+		.val = PMX_PWM_MASK,
 	}, {
 		.reg = IP_SEL_PAD_30_39_REG,
 		.mask = PMX_PL_34_MASK,

drivers/pinctrl/spear/pinctrl-spear3xx.h

@@ -15,6 +15,7 @@
 #include "pinctrl-spear.h"
 
 /* pad mux declarations */
+#define PMX_PWM_MASK		(1 << 16)
 #define PMX_FIRDA_MASK		(1 << 14)
 #define PMX_I2C_MASK		(1 << 13)
 #define PMX_SSP_CS_MASK		(1 << 12)