pinctrl: st: Use const qualifier when required

This patch adds const qualifier where applicable.

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 987099c..ac48557 100644 (file)
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -238,13 +238,13 @@ struct st_pio_control {
 };
 
 struct st_pctl_data {
-       enum st_retime_style rt_style;
-       unsigned int    *input_delays;
-       int             ninput_delays;
-       unsigned int    *output_delays;
-       int             noutput_delays;
+       const enum st_retime_style      rt_style;
+       const unsigned int              *input_delays;
+       const int                       ninput_delays;
+       const unsigned int              *output_delays;
+       const int                       noutput_delays;
        /* register offset information */
-       int alt, oe, pu, od, rt;
+       const int alt, oe, pu, od, rt;
 };
 
 struct st_pinconf {
@@ -337,8 +337,8 @@ struct st_pinctrl {
 
 /* SOC specific data */
 /* STiH415 data */
-static unsigned int stih415_input_delays[] = {0, 500, 1000, 1500};
-static unsigned int stih415_output_delays[] = {0, 1000, 2000, 3000};
+static const unsigned int stih415_input_delays[] = {0, 500, 1000, 1500};
+static const unsigned int stih415_output_delays[] = {0, 1000, 2000, 3000};
 
 #define STIH415_PCTRL_COMMON_DATA                              \
        .rt_style       = st_retime_style_packed,               \
@@ -373,8 +373,8 @@ static const struct st_pctl_data  stih415_right_data = {
 };
 
 /* STiH416 data */
-static unsigned int stih416_delays[] = {0, 300, 500, 750, 1000, 1250, 1500,
-                       1750, 2000, 2250, 2500, 2750, 3000, 3250 };
+static const unsigned int stih416_delays[] = {0, 300, 500, 750, 1000, 1250,
+                       1500, 1750, 2000, 2250, 2500, 2750, 3000, 3250 };
 
 static const struct st_pctl_data  stih416_data = {
        .rt_style       = st_retime_style_dedicated,
@@ -463,7 +463,7 @@ static void st_pctl_set_function(struct st_pio_control *pc,
 static unsigned long st_pinconf_delay_to_bit(unsigned int delay,
        const struct st_pctl_data *data, unsigned long config)
 {
-       unsigned int *delay_times;
+       const unsigned int *delay_times;
        int num_delay_times, i, closest_index = -1;
        unsigned int closest_divergence = UINT_MAX;
 
@@ -496,7 +496,7 @@ static unsigned long st_pinconf_delay_to_bit(unsigned int delay,
 static unsigned long st_pinconf_bit_to_delay(unsigned int index,
        const struct st_pctl_data *data, unsigned long output)
 {
-       unsigned int *delay_times;
+       const unsigned int *delay_times;
        int num_delay_times;
 
        if (output) {