pinctrl: samsung: constify iomem pointers

Constify few pointers to iomem, where the destination memory is not
modified, for code safety and readability.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20231223191902.22857-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index d3d4b5d036c88fc5468ec3ba85cb5bd9e59c47a3..871c1eb46ddfd0417a0161912ef2bdc58abc1969 100644 (file)
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -693,7 +693,7 @@ static void exynos_pinctrl_suspend_bank(
                                struct samsung_pin_bank *bank)
 {
        struct exynos_eint_gpio_save *save = bank->soc_priv;
-       void __iomem *regs = bank->eint_base;
+       const void __iomem *regs = bank->eint_base;
 
        save->eint_con = readl(regs + EXYNOS_GPIO_ECON_OFFSET
                                                + bank->eint_offset);
@@ -714,7 +714,7 @@ static void exynosauto_pinctrl_suspend_bank(struct samsung_pinctrl_drv_data *drv
                                            struct samsung_pin_bank *bank)
 {
        struct exynos_eint_gpio_save *save = bank->soc_priv;
-       void __iomem *regs = bank->eint_base;
+       const void __iomem *regs = bank->eint_base;
 
        save->eint_con = readl(regs + bank->pctl_offset + bank->eint_con_offset);
        save->eint_mask = readl(regs + bank->pctl_offset + bank->eint_mask_offset);

diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index dbf38767f15f0466cf6fdf9506a8c29713913c47..ed07e23e091220a925e7fd4646f3e4a651f999bf 100644 (file)
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -565,7 +565,7 @@ static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
 /* gpiolib gpio_get callback function */
 static int samsung_gpio_get(struct gpio_chip *gc, unsigned offset)
 {
-       void __iomem *reg;
+       const void __iomem *reg;
        u32 data;
        struct samsung_pin_bank *bank = gpiochip_get_data(gc);
        const struct samsung_pin_bank_type *type = bank->type;
@@ -1204,7 +1204,7 @@ static int __maybe_unused samsung_pinctrl_suspend(struct device *dev)
 
        for (i = 0; i < drvdata->nr_banks; i++) {
                struct samsung_pin_bank *bank = &drvdata->pin_banks[i];
-               void __iomem *reg = bank->pctl_base + bank->pctl_offset;
+               const void __iomem *reg = bank->pctl_base + bank->pctl_offset;
                const u8 *offs = bank->type->reg_offset;
                const u8 *widths = bank->type->fld_width;
                enum pincfg_type type;