diff options
| author | Rikard Falkeborn | 2021-05-12 20:01:40 +0200 |
|---|---|---|
| committer | Linus Walleij | 2021-05-25 17:10:05 +0200 |
| commit | f56b273cd845a1139f8e37437367bca314e67b1c (patch) | |
| tree | f18c31d57055cb8b6d10dc10dc7aa2248bec6729 | |
| parent | 9b882b73d37932a5ba20d7fdcbe6e3191d9582cd (diff) | |
pinctrl: at91: Constify struct at91_pinctrl_mux_ops
The at91_pinctrl_mux_ops struct is never modified by the driver. Make it
const wherever it is possible to allow the compiler to put the static
variables in read-only memory. Note that sam9x60_ops was already const,
but the const was cast away when the return value of of_match_device() was
cast to a pointer to a non-const struct at91_pinctrl_mux_ops.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20210512180140.33293-1-rikard.falkeborn@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/pinctrl/pinctrl-at91.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index fc61aaec34cc..72e6df7abe8c 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -42,7 +42,7 @@ struct at91_gpio_chip { int pioc_idx; /* PIO bank index */ void __iomem *regbase; /* PIO bank virtual address */ struct clk *clock; /* associated clock */ - struct at91_pinctrl_mux_ops *ops; /* ops */ + const struct at91_pinctrl_mux_ops *ops; /* ops */ }; static struct at91_gpio_chip *gpio_chips[MAX_GPIO_BANKS]; @@ -210,7 +210,7 @@ struct at91_pinctrl { struct at91_pin_group *groups; int ngroups; - struct at91_pinctrl_mux_ops *ops; + const struct at91_pinctrl_mux_ops *ops; }; static inline const struct at91_pin_group *at91_pinctrl_find_group_by_name( @@ -688,7 +688,7 @@ static void at91_mux_sam9x60_set_slewrate(void __iomem *pio, unsigned pin, writel_relaxed(tmp, pio + SAM9X60_PIO_SLEWR); } -static struct at91_pinctrl_mux_ops at91rm9200_ops = { +static const struct at91_pinctrl_mux_ops at91rm9200_ops = { .get_periph = at91_mux_get_periph, .mux_A_periph = at91_mux_set_A_periph, .mux_B_periph = at91_mux_set_B_periph, @@ -697,7 +697,7 @@ static struct at91_pinctrl_mux_ops at91rm9200_ops = { .irq_type = gpio_irq_type, }; -static struct at91_pinctrl_mux_ops at91sam9x5_ops = { +static const struct at91_pinctrl_mux_ops at91sam9x5_ops = { .get_periph = at91_mux_pio3_get_periph, .mux_A_periph = at91_mux_pio3_set_A_periph, .mux_B_periph = at91_mux_pio3_set_B_periph, @@ -737,7 +737,7 @@ static const struct at91_pinctrl_mux_ops sam9x60_ops = { .irq_type = alt_gpio_irq_type, }; -static struct at91_pinctrl_mux_ops sama5d3_ops = { +static const struct at91_pinctrl_mux_ops sama5d3_ops = { .get_periph = at91_mux_pio3_get_periph, .mux_A_periph = at91_mux_pio3_set_A_periph, .mux_B_periph = at91_mux_pio3_set_B_periph, @@ -1284,7 +1284,7 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev, return -ENODEV; info->dev = &pdev->dev; - info->ops = (struct at91_pinctrl_mux_ops *) + info->ops = (const struct at91_pinctrl_mux_ops *) of_match_device(at91_pinctrl_of_match, &pdev->dev)->data; at91_pinctrl_child_count(info, np); @@ -1849,7 +1849,7 @@ static int at91_gpio_probe(struct platform_device *pdev) goto err; } - at91_chip->ops = (struct at91_pinctrl_mux_ops *) + at91_chip->ops = (const struct at91_pinctrl_mux_ops *) of_match_device(at91_gpio_of_match, &pdev->dev)->data; at91_chip->pioc_virq = irq; at91_chip->pioc_idx = alias_idx; |