diff mbox series

pinctrl: samsung: constify iomem pointers

Message ID	20231223191902.22857-1-krzysztof.kozlowski@linaro.org
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel+bounces-10562-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> To: Tomasz Figa <tomasz.figa@gmail.com>, Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>, Sylwester Nawrocki <s.nawrocki@samsung.com>, Alim Akhtar <alim.akhtar@samsung.com>, Linus Walleij <linus.walleij@linaro.org>, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] pinctrl: samsung: constify iomem pointers Date: Sat, 23 Dec 2023 20:19:02 +0100 Message-Id: <20231223191902.22857-1-krzysztof.kozlowski@linaro.org> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-getmail-retrieved-from-mailbox: INBOX
Series	pinctrl: samsung: constify iomem pointers \| pinctrl: samsung: constify iomem pointers

Commit Message

Krzysztof Kozlowski Dec. 23, 2023, 7:19 p.m. UTC

  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>
---
 drivers/pinctrl/samsung/pinctrl-exynos.c  | 4 ++--
 drivers/pinctrl/samsung/pinctrl-samsung.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

Comments

Sam Protsenko Dec. 24, 2023, 2 a.m. UTC | #1

On Sat, Dec 23, 2023 at 1:19 PM Krzysztof Kozlowski
<krzysztof.kozlowski@linaro.org> wrote:
>
> 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: Sam Protsenko <semen.protsenko@linaro.org>

>  drivers/pinctrl/samsung/pinctrl-exynos.c  | 4 ++--
>  drivers/pinctrl/samsung/pinctrl-samsung.c | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
> index d3d4b5d036c8..871c1eb46ddf 100644
> --- 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 dbf38767f15f..ed07e23e0912 100644
> --- 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;
> --
> 2.34.1
>
>

Linus Walleij Dec. 28, 2023, 12:23 a.m. UTC | #2

On Sat, Dec 23, 2023 at 8:19 PM Krzysztof Kozlowski
<krzysztof.kozlowski@linaro.org> wrote:

> 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>

Is this something I should just apply directly at this point?

Yours,
Linus Walleij

Krzysztof Kozlowski Dec. 28, 2023, 7:06 a.m. UTC | #3

On 28/12/2023 01:23, Linus Walleij wrote:
> On Sat, Dec 23, 2023 at 8:19 PM Krzysztof Kozlowski
> <krzysztof.kozlowski@linaro.org> wrote:
> 
>> 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>
> 
> Is this something I should just apply directly at this point?

Yes, please take it.

Best regards,
Krzysztof

Linus Walleij Dec. 28, 2023, 9:13 p.m. UTC | #4

On Sat, Dec 23, 2023 at 8:19 PM Krzysztof Kozlowski
<krzysztof.kozlowski@linaro.org> wrote:

> 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>

Patch applied!

Yours,
Linus Walleij

diff mbox series

Patch

diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index d3d4b5d036c8..871c1eb46ddf 100644
--- 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 dbf38767f15f..ed07e23e0912 100644
--- 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;