pinctrl: oxnas: Move OX810SE specific function and structure as separate

Add refactoring to move ox810se specific functions into specific ops structures
an add support for the dt match data to get soc specific structures.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 101 insertions, 75 deletions

diff --git a/drivers/pinctrl/pinctrl-oxnas.c b/drivers/pinctrl/pinctrl-oxnas.c
index 917a7d2535d7..218ad48f455a 100644
--- a/drivers/pinctrl/pinctrl-oxnas.c
+++ b/drivers/pinctrl/pinctrl-oxnas.c
@@ -37,15 +37,15 @@
 
 #define GPIO_BANK_START(bank)           ((bank) * PINS_PER_BANK)
 
-/* Regmap Offsets */
-#define PINMUX_PRIMARY_SEL0     0x0c
-#define PINMUX_SECONDARY_SEL0   0x14
-#define PINMUX_TERTIARY_SEL0    0x8c
-#define PINMUX_PRIMARY_SEL1     0x10
-#define PINMUX_SECONDARY_SEL1   0x18
-#define PINMUX_TERTIARY_SEL1    0x90
-#define PINMUX_PULLUP_CTRL0     0xac
-#define PINMUX_PULLUP_CTRL1     0xb0
+/* OX810 Regmap Offsets */
+#define PINMUX_810_PRIMARY_SEL0         0x0c
+#define PINMUX_810_SECONDARY_SEL0       0x14
+#define PINMUX_810_TERTIARY_SEL0        0x8c
+#define PINMUX_810_PRIMARY_SEL1         0x10
+#define PINMUX_810_SECONDARY_SEL1       0x18
+#define PINMUX_810_TERTIARY_SEL1        0x90
+#define PINMUX_810_PULLUP_CTRL0         0xac
+#define PINMUX_810_PULLUP_CTRL1         0xb0
 
 /* GPIO Registers */
 #define INPUT_VALUE     0x00
@@ -87,8 +87,6 @@ struct oxnas_pinctrl {
         struct regmap *regmap;
         struct device *dev;
         struct pinctrl_dev *pctldev;
-        const struct pinctrl_pin_desc *pins;
-        unsigned int npins;
         const struct oxnas_function *functions;
         unsigned int nfunctions;
         const struct oxnas_pin_group *groups;
@@ -97,7 +95,12 @@ struct oxnas_pinctrl {
         unsigned int nbanks;
 };
 
-static const struct pinctrl_pin_desc oxnas_pins[] = {
+struct oxnas_pinctrl_data {
+        struct pinctrl_desc *desc;
+        struct oxnas_pinctrl *pctl;
+};
+
+static const struct pinctrl_pin_desc oxnas_ox810se_pins[] = {
         PINCTRL_PIN(0, "gpio0"),
         PINCTRL_PIN(1, "gpio1"),
         PINCTRL_PIN(2, "gpio2"),
@@ -135,7 +138,7 @@ static const struct pinctrl_pin_desc oxnas_pins[] = {
         PINCTRL_PIN(34, "gpio34"),
 };
 
-static const char * const oxnas_fct0_group[] = {
+static const char * const oxnas_ox810se_fct0_group[] = {
         "gpio0",  "gpio1",  "gpio2",  "gpio3",
         "gpio4",  "gpio5",  "gpio6",  "gpio7",
         "gpio8",  "gpio9",  "gpio10", "gpio11",
@@ -147,7 +150,7 @@ static const char * const oxnas_fct0_group[] = {
         "gpio32", "gpio33", "gpio34"
 };
 
-static const char * const oxnas_fct3_group[] = {
+static const char * const oxnas_ox810se_fct3_group[] = {
         "gpio0",  "gpio1",  "gpio2",  "gpio3",
         "gpio4",  "gpio5",  "gpio6",  "gpio7",
         "gpio8",  "gpio9",
@@ -165,9 +168,9 @@ static const char * const oxnas_fct3_group[] = {
                 .ngroups = ARRAY_SIZE(oxnas_##_gr##_group),     \
         }
 
-static const struct oxnas_function oxnas_functions[] = {
-        FUNCTION(gpio, fct0),
-        FUNCTION(fct3, fct3),
+static const struct oxnas_function oxnas_ox810se_functions[] = {
+        FUNCTION(gpio, ox810se_fct0),
+        FUNCTION(fct3, ox810se_fct3),
 };
 
 #define OXNAS_PINCTRL_GROUP(_pin, _name, ...)                           \
@@ -185,7 +188,7 @@ static const struct oxnas_function oxnas_functions[] = {
                 .fct = _fct,                            \
         }
 
-static const struct oxnas_pin_group oxnas_groups[] = {
+static const struct oxnas_pin_group oxnas_ox810se_groups[] = {
         OXNAS_PINCTRL_GROUP(0, gpio0,
                         OXNAS_PINCTRL_FUNCTION(gpio, 0),
                         OXNAS_PINCTRL_FUNCTION(fct3, 3)),
@@ -352,8 +355,8 @@ static int oxnas_pinmux_get_function_groups(struct pinctrl_dev *pctldev,
         return 0;
 }
 
-static int oxnas_pinmux_enable(struct pinctrl_dev *pctldev,
-                               unsigned int func, unsigned int group)
+static int oxnas_ox810se_pinmux_enable(struct pinctrl_dev *pctldev,
+                                       unsigned int func, unsigned int group)
 {
         struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
         const struct oxnas_pin_group *pg = &pctl->groups[group];
@@ -371,22 +374,22 @@ static int oxnas_pinmux_enable(struct pinctrl_dev *pctldev,
 
                         regmap_write_bits(pctl->regmap,
                                           (pg->bank ?
-                                                PINMUX_PRIMARY_SEL1 :
-                                                PINMUX_PRIMARY_SEL0),
+                                                PINMUX_810_PRIMARY_SEL1 :
+                                                PINMUX_810_PRIMARY_SEL0),
                                           mask,
                                           (functions->fct == 1 ?
                                                 mask : 0));
                         regmap_write_bits(pctl->regmap,
                                           (pg->bank ?
-                                                PINMUX_SECONDARY_SEL1 :
-                                                PINMUX_SECONDARY_SEL0),
+                                                PINMUX_810_SECONDARY_SEL1 :
+                                                PINMUX_810_SECONDARY_SEL0),
                                           mask,
                                           (functions->fct == 2 ?
                                                 mask : 0));
                         regmap_write_bits(pctl->regmap,
                                           (pg->bank ?
-                                                PINMUX_TERTIARY_SEL1 :
-                                                PINMUX_TERTIARY_SEL0),
+                                                PINMUX_810_TERTIARY_SEL1 :
+                                                PINMUX_810_TERTIARY_SEL0),
                                           mask,
                                           (functions->fct == 3 ?
                                                 mask : 0));
@@ -402,9 +405,9 @@ static int oxnas_pinmux_enable(struct pinctrl_dev *pctldev,
         return -EINVAL;
 }
 
-static int oxnas_gpio_request_enable(struct pinctrl_dev *pctldev,
-                                     struct pinctrl_gpio_range *range,
-                                     unsigned int offset)
+static int oxnas_ox810se_gpio_request_enable(struct pinctrl_dev *pctldev,
+                                             struct pinctrl_gpio_range *range,
+                                             unsigned int offset)
 {
         struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
         struct oxnas_gpio_bank *bank = gpiochip_get_data(range->gc);
@@ -415,18 +418,18 @@ static int oxnas_gpio_request_enable(struct pinctrl_dev *pctldev,
 
         regmap_write_bits(pctl->regmap,
                           (bank->id ?
-                                PINMUX_PRIMARY_SEL1 :
-                                PINMUX_PRIMARY_SEL0),
+                                PINMUX_810_PRIMARY_SEL1 :
+                                PINMUX_810_PRIMARY_SEL0),
                           mask, 0);
         regmap_write_bits(pctl->regmap,
                           (bank->id ?
-                                PINMUX_SECONDARY_SEL1 :
-                                PINMUX_SECONDARY_SEL0),
+                                PINMUX_810_SECONDARY_SEL1 :
+                                PINMUX_810_SECONDARY_SEL0),
                           mask, 0);
         regmap_write_bits(pctl->regmap,
                           (bank->id ?
-                                PINMUX_TERTIARY_SEL1 :
-                                PINMUX_TERTIARY_SEL0),
+                                PINMUX_810_TERTIARY_SEL1 :
+                                PINMUX_810_TERTIARY_SEL0),
                           mask, 0);
 
         return 0;
@@ -498,17 +501,17 @@ static int oxnas_gpio_set_direction(struct pinctrl_dev *pctldev,
         return 0;
 }
 
-static const struct pinmux_ops oxnas_pinmux_ops = {
+static const struct pinmux_ops oxnas_ox810se_pinmux_ops = {
         .get_functions_count = oxnas_pinmux_get_functions_count,
         .get_function_name = oxnas_pinmux_get_function_name,
         .get_function_groups = oxnas_pinmux_get_function_groups,
-        .set_mux = oxnas_pinmux_enable,
-        .gpio_request_enable = oxnas_gpio_request_enable,
+        .set_mux = oxnas_ox810se_pinmux_enable,
+        .gpio_request_enable = oxnas_ox810se_gpio_request_enable,
         .gpio_set_direction = oxnas_gpio_set_direction,
 };
 
-static int oxnas_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
-                             unsigned long *config)
+static int oxnas_ox810se_pinconf_get(struct pinctrl_dev *pctldev,
+                                     unsigned int pin, unsigned long *config)
 {
         struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
         struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin);
@@ -521,8 +524,8 @@ static int oxnas_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
         case PIN_CONFIG_BIAS_PULL_UP:
                 ret = regmap_read(pctl->regmap,
                                   (bank->id ?
-                                        PINMUX_PULLUP_CTRL1 :
-                                        PINMUX_PULLUP_CTRL0),
+                                        PINMUX_810_PULLUP_CTRL1 :
+                                        PINMUX_810_PULLUP_CTRL0),
                                   &arg);
                 if (ret)
                         return ret;
@@ -538,8 +541,9 @@ static int oxnas_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
         return 0;
 }
 
-static int oxnas_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
-                             unsigned long *configs, unsigned int num_configs)
+static int oxnas_ox810se_pinconf_set(struct pinctrl_dev *pctldev,
+                                     unsigned int pin, unsigned long *configs,
+                                     unsigned int num_configs)
 {
         struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
         struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin);
@@ -561,8 +565,8 @@ static int oxnas_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
                         dev_dbg(pctl->dev, "   pullup\n");
                         regmap_write_bits(pctl->regmap,
                                           (bank->id ?
-                                                PINMUX_PULLUP_CTRL1 :
-                                                PINMUX_PULLUP_CTRL0),
+                                                PINMUX_810_PULLUP_CTRL1 :
+                                                PINMUX_810_PULLUP_CTRL0),
                                           mask, mask);
                         break;
                 default:
@@ -575,20 +579,12 @@ static int oxnas_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
         return 0;
 }
 
-static const struct pinconf_ops oxnas_pinconf_ops = {
-        .pin_config_get = oxnas_pinconf_get,
-        .pin_config_set = oxnas_pinconf_set,
+static const struct pinconf_ops oxnas_ox810se_pinconf_ops = {
+        .pin_config_get = oxnas_ox810se_pinconf_get,
+        .pin_config_set = oxnas_ox810se_pinconf_set,
         .is_generic = true,
 };
 
-static struct pinctrl_desc oxnas_pinctrl_desc = {
-        .name = "oxnas-pinctrl",
-        .pctlops = &oxnas_pinctrl_ops,
-        .pmxops = &oxnas_pinmux_ops,
-        .confops = &oxnas_pinconf_ops,
-        .owner = THIS_MODULE,
-};
-
 static void oxnas_gpio_irq_ack(struct irq_data *data)
 {
         struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
@@ -699,10 +695,51 @@ static struct oxnas_gpio_bank oxnas_gpio_banks[] = {
         GPIO_BANK(1),
 };
 
+static struct oxnas_pinctrl ox810se_pinctrl = {
+        .functions = oxnas_ox810se_functions,
+        .nfunctions = ARRAY_SIZE(oxnas_ox810se_functions),
+        .groups = oxnas_ox810se_groups,
+        .ngroups = ARRAY_SIZE(oxnas_ox810se_groups),
+        .gpio_banks = oxnas_gpio_banks,
+        .nbanks = ARRAY_SIZE(oxnas_gpio_banks),
+};
+
+static struct pinctrl_desc oxnas_ox810se_pinctrl_desc = {
+        .name = "oxnas-pinctrl",
+        .pins = oxnas_ox810se_pins,
+        .npins = ARRAY_SIZE(oxnas_ox810se_pins),
+        .pctlops = &oxnas_pinctrl_ops,
+        .pmxops = &oxnas_ox810se_pinmux_ops,
+        .confops = &oxnas_ox810se_pinconf_ops,
+        .owner = THIS_MODULE,
+};
+
+static struct oxnas_pinctrl_data oxnas_ox810se_pinctrl_data = {
+        .desc = &oxnas_ox810se_pinctrl_desc,
+        .pctl = &ox810se_pinctrl,
+};
+
+static const struct of_device_id oxnas_pinctrl_of_match[] = {
+        { .compatible = "oxsemi,ox810se-pinctrl",
+          .data = &oxnas_ox810se_pinctrl_data
+        },
+        { },
+};
+
 static int oxnas_pinctrl_probe(struct platform_device *pdev)
 {
+        const struct of_device_id *id;
+        const struct oxnas_pinctrl_data *data;
         struct oxnas_pinctrl *pctl;
 
+        id = of_match_node(oxnas_pinctrl_of_match, pdev->dev.of_node);
+        if (!id)
+                return -ENODEV;
+
+        data = id->data;
+        if (!data || !data->pctl || !data->desc)
+                return -EINVAL;
+
         pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
         if (!pctl)
                 return -ENOMEM;
@@ -716,20 +753,14 @@ static int oxnas_pinctrl_probe(struct platform_device *pdev)
                 return -ENODEV;
         }
 
-        pctl->pins = oxnas_pins;
-        pctl->npins = ARRAY_SIZE(oxnas_pins);
-        pctl->functions = oxnas_functions;
-        pctl->nfunctions = ARRAY_SIZE(oxnas_functions);
-        pctl->groups = oxnas_groups;
-        pctl->ngroups = ARRAY_SIZE(oxnas_groups);
-        pctl->gpio_banks = oxnas_gpio_banks;
-        pctl->nbanks = ARRAY_SIZE(oxnas_gpio_banks);
+        pctl->functions = data->pctl->functions;
+        pctl->nfunctions = data->pctl->nfunctions;
+        pctl->groups = data->pctl->groups;
+        pctl->ngroups = data->pctl->ngroups;
+        pctl->gpio_banks = data->pctl->gpio_banks;
+        pctl->nbanks = data->pctl->nbanks;
 
-        oxnas_pinctrl_desc.pins = pctl->pins;
-        oxnas_pinctrl_desc.npins = pctl->npins;
-
-        pctl->pctldev = pinctrl_register(&oxnas_pinctrl_desc,
-                                         &pdev->dev, pctl);
+        pctl->pctldev = pinctrl_register(data->desc, &pdev->dev, pctl);
         if (IS_ERR(pctl->pctldev)) {
                 dev_err(&pdev->dev, "Failed to register pinctrl device\n");
                 return PTR_ERR(pctl->pctldev);
@@ -805,11 +836,6 @@ static int oxnas_gpio_probe(struct platform_device *pdev)
         return 0;
 }
 
-static const struct of_device_id oxnas_pinctrl_of_match[] = {
-        { .compatible = "oxsemi,ox810se-pinctrl", },
-        { },
-};
-
 static struct platform_driver oxnas_pinctrl_driver = {
         .driver = {
                 .name = "oxnas-pinctrl",