pinctrl: imx7ulp: constify struct imx_cfg_params_decode

The decode parameters are constant mark them const.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/freescale/pinctrl-imx.c

@@ -255,7 +255,7 @@ static u32 imx_pinconf_decode_generic_config(struct imx_pinctrl *ipctl,
 					      unsigned int num_configs)
 {
 	const struct imx_pinctrl_soc_info *info = ipctl->info;
-	struct imx_cfg_params_decode *decode;
+	const struct imx_cfg_params_decode *decode;
 	enum pin_config_param param;
 	u32 raw_config = 0;
 	u32 param_val;

drivers/pinctrl/freescale/pinctrl-imx.h

@@ -71,7 +71,7 @@ struct imx_pinctrl_soc_info {
 	bool generic_pinconf;
 	const struct pinconf_generic_params *custom_params;
 	unsigned int num_custom_params;
-	struct imx_cfg_params_decode *decodes;
+	const struct imx_cfg_params_decode *decodes;
 	unsigned int num_decodes;
 	void (*fixup)(unsigned long *configs, unsigned int num_configs,
 		      u32 *raw_config);

drivers/pinctrl/freescale/pinctrl-imx7ulp.c

@@ -266,7 +266,7 @@ static const struct pinctrl_pin_desc imx7ulp_pinctrl_pads[] = {
 #define BP_MUX_MODE		8
 #define BM_PULL_ENABLED		BIT(1)
 
-struct imx_cfg_params_decode imx7ulp_cfg_decodes[] = {
+static const struct imx_cfg_params_decode imx7ulp_cfg_decodes[] = {
 	IMX_CFG_PARAMS_DECODE(PIN_CONFIG_DRIVE_STRENGTH, 		BIT(6), 6),
 	IMX_CFG_PARAMS_DECODE(PIN_CONFIG_DRIVE_PUSH_PULL,		BIT(5), 5),
 	IMX_CFG_PARAMS_DECODE(PIN_CONFIG_SLEW_RATE,			BIT(2), 2),