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pinctrl: bcm2835: Refactor platform data

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This prepares the platform data to be easier to extend for more GPIOs.
Except of this there is no functional change.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1581166975-22949-3-git-send-email-stefan.wahren@i2se.com
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Stefan Wahren 2020-02-08 14:02:53 +01:00 committed by Linus Walleij
parent be30d5de0a
commit 90bfaf028d
1 changed files with 44 additions and 13 deletions
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57
drivers/pinctrl/bcm/pinctrl-bcm2835.c
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@ -82,6 +82,7 @@ struct bcm2835_pinctrl {
struct pinctrl_dev *pctl_dev;
struct gpio_chip gpio_chip;
struct pinctrl_desc pctl_desc;
struct pinctrl_gpio_range gpio_range;
raw_spinlock_t irq_lock[BCM2835_NUM_BANKS];
@ -1051,7 +1052,7 @@ static const struct pinconf_ops bcm2711_pinconf_ops = {
.pin_config_set = bcm2711_pinconf_set,
};
static struct pinctrl_desc bcm2835_pinctrl_desc = {
static const struct pinctrl_desc bcm2835_pinctrl_desc = {
.name = MODULE_NAME,
.pins = bcm2835_gpio_pins,
.npins = ARRAY_SIZE(bcm2835_gpio_pins),
@ -1061,19 +1062,47 @@ static struct pinctrl_desc bcm2835_pinctrl_desc = {
.owner = THIS_MODULE,
};
static struct pinctrl_gpio_range bcm2835_pinctrl_gpio_range = {
static const struct pinctrl_desc bcm2711_pinctrl_desc = {
.name = MODULE_NAME,
.pins = bcm2835_gpio_pins,
.npins = ARRAY_SIZE(bcm2835_gpio_pins),
.pctlops = &bcm2835_pctl_ops,
.pmxops = &bcm2835_pmx_ops,
.confops = &bcm2711_pinconf_ops,
.owner = THIS_MODULE,
};
static const struct pinctrl_gpio_range bcm2835_pinctrl_gpio_range = {
.name = MODULE_NAME,
.npins = BCM2835_NUM_GPIOS,
};
struct bcm_plat_data {
const struct gpio_chip *gpio_chip;
const struct pinctrl_desc *pctl_desc;
const struct pinctrl_gpio_range *gpio_range;
};
static const struct bcm_plat_data bcm2835_plat_data = {
.gpio_chip = &bcm2835_gpio_chip,
.pctl_desc = &bcm2835_pinctrl_desc,
.gpio_range = &bcm2835_pinctrl_gpio_range,
};
static const struct bcm_plat_data bcm2711_plat_data = {
.gpio_chip = &bcm2835_gpio_chip,
.pctl_desc = &bcm2711_pinctrl_desc,
.gpio_range = &bcm2835_pinctrl_gpio_range,
};
static const struct of_device_id bcm2835_pinctrl_match[] = {
{
.compatible = "brcm,bcm2835-gpio",
.data = &bcm2835_pinconf_ops,
.data = &bcm2835_plat_data,
},
{
.compatible = "brcm,bcm2711-gpio",
.data = &bcm2711_pinconf_ops,
.data = &bcm2711_plat_data,
},
{}
};
@ -1082,6 +1111,7 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
const struct bcm_plat_data *pdata;
struct bcm2835_pinctrl *pc;
struct gpio_irq_chip *girq;
struct resource iomem;
@ -1108,7 +1138,13 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
if (IS_ERR(pc->base))
return PTR_ERR(pc->base);
pc->gpio_chip = bcm2835_gpio_chip;
match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node);
if (!match)
return -EINVAL;
pdata = match->data;
pc->gpio_chip = *pdata->gpio_chip;
pc->gpio_chip.parent = dev;
pc->gpio_chip.of_node = np;
@ -1159,19 +1195,14 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
return err;
}
match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node);
if (match) {
bcm2835_pinctrl_desc.confops =
(const struct pinconf_ops *)match->data;
}
pc->pctl_dev = devm_pinctrl_register(dev, &bcm2835_pinctrl_desc, pc);
pc->pctl_desc = *pdata->pctl_desc;
pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
if (IS_ERR(pc->pctl_dev)) {
gpiochip_remove(&pc->gpio_chip);
return PTR_ERR(pc->pctl_dev);
}
pc->gpio_range = bcm2835_pinctrl_gpio_range;
pc->gpio_range = *pdata->gpio_range;
pc->gpio_range.base = pc->gpio_chip.base;
pc->gpio_range.gc = &pc->gpio_chip;
pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);