From 8eeb467d3b4f8a5f05e49dd88e7674a2d6c0f346 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 1 Aug 2019 20:39:35 +0300 Subject: gpio: pca953x: Switch to use device_get_match_data() Instead of open coded variants, switch to direct use of device_get_match_data(). Signed-off-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpio-pca953x.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) (limited to 'drivers/gpio/gpio-pca953x.c') diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 378b206d2dc9..54cf01901320 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -949,19 +949,15 @@ static int pca953x_probe(struct i2c_client *client, if (i2c_id) { chip->driver_data = i2c_id->driver_data; } else { - const struct acpi_device_id *acpi_id; - struct device *dev = &client->dev; - - chip->driver_data = (uintptr_t)of_device_get_match_data(dev); - if (!chip->driver_data) { - acpi_id = acpi_match_device(pca953x_acpi_ids, dev); - if (!acpi_id) { - ret = -ENODEV; - goto err_exit; - } - - chip->driver_data = acpi_id->driver_data; + const void *match; + + match = device_get_match_data(&client->dev); + if (!match) { + ret = -ENODEV; + goto err_exit; } + + chip->driver_data = (uintptr_t)match; } i2c_set_clientdata(client, chip); -- cgit v1.2.3 From 63b484c2a69a4a98a22e072ea2ad1317a85e3abf Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 1 Aug 2019 20:39:36 +0300 Subject: gpio: pca953x: Use GENMASK() consistently Use GENMASK() macro for all definitions where it's appropriate. No functional change intended. Signed-off-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpio-pca953x.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) (limited to 'drivers/gpio/gpio-pca953x.c') diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 54cf01901320..aaba0b394d2f 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -9,6 +9,7 @@ */ #include +#include #include #include #include @@ -28,9 +29,9 @@ #define PCA953X_INVERT 0x02 #define PCA953X_DIRECTION 0x03 -#define REG_ADDR_MASK 0x3f -#define REG_ADDR_EXT 0x40 -#define REG_ADDR_AI 0x80 +#define REG_ADDR_MASK GENMASK(5, 0) +#define REG_ADDR_EXT BIT(6) +#define REG_ADDR_AI BIT(7) #define PCA957X_IN 0x00 #define PCA957X_INVRT 0x01 @@ -55,17 +56,17 @@ #define PCAL6524_OUT_INDCONF 0x2c #define PCAL6524_DEBOUNCE 0x2d -#define PCA_GPIO_MASK 0x00FF +#define PCA_GPIO_MASK GENMASK(7, 0) -#define PCAL_GPIO_MASK 0x1f -#define PCAL_PINCTRL_MASK 0x60 +#define PCAL_GPIO_MASK GENMASK(4, 0) +#define PCAL_PINCTRL_MASK GENMASK(6, 5) -#define PCA_INT 0x0100 -#define PCA_PCAL 0x0200 +#define PCA_INT BIT(8) +#define PCA_PCAL BIT(9) #define PCA_LATCH_INT (PCA_PCAL | PCA_INT) -#define PCA953X_TYPE 0x1000 -#define PCA957X_TYPE 0x2000 -#define PCA_TYPE_MASK 0xF000 +#define PCA953X_TYPE BIT(12) +#define PCA957X_TYPE BIT(13) +#define PCA_TYPE_MASK GENMASK(15, 12) #define PCA_CHIP_TYPE(x) ((x) & PCA_TYPE_MASK) @@ -565,7 +566,7 @@ static void pca953x_irq_mask(struct irq_data *d) struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); - chip->irq_mask[d->hwirq / BANK_SZ] &= ~(1 << (d->hwirq % BANK_SZ)); + chip->irq_mask[d->hwirq / BANK_SZ] &= ~BIT(d->hwirq % BANK_SZ); } static void pca953x_irq_unmask(struct irq_data *d) @@ -573,7 +574,7 @@ static void pca953x_irq_unmask(struct irq_data *d) struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); - chip->irq_mask[d->hwirq / BANK_SZ] |= 1 << (d->hwirq % BANK_SZ); + chip->irq_mask[d->hwirq / BANK_SZ] |= BIT(d->hwirq % BANK_SZ); } static int pca953x_irq_set_wake(struct irq_data *d, unsigned int on) @@ -641,7 +642,7 @@ static int pca953x_irq_set_type(struct irq_data *d, unsigned int type) struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); int bank_nb = d->hwirq / BANK_SZ; - u8 mask = 1 << (d->hwirq % BANK_SZ); + u8 mask = BIT(d->hwirq % BANK_SZ); if (!(type & IRQ_TYPE_EDGE_BOTH)) { dev_err(&chip->client->dev, "irq %d: unsupported type %d\n", @@ -666,7 +667,7 @@ static void pca953x_irq_shutdown(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); - u8 mask = 1 << (d->hwirq % BANK_SZ); + u8 mask = BIT(d->hwirq % BANK_SZ); chip->irq_trig_raise[d->hwirq / BANK_SZ] &= ~mask; chip->irq_trig_fall[d->hwirq / BANK_SZ] &= ~mask; -- cgit v1.2.3 From 6dd6a2d27e5a0d192b542389f4c9a035d1b77b8e Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 1 Aug 2019 20:39:37 +0300 Subject: gpio: pca953x: Remove explicit comparison with 0 There is no need to explicitly compare return code with 0. Signed-off-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpio-pca953x.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/gpio/gpio-pca953x.c') diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index aaba0b394d2f..454bbe2fb41f 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -850,12 +850,12 @@ static int device_pca95xx_init(struct pca953x_chip *chip, u32 invert) ret = regcache_sync_region(chip->regmap, chip->regs->output, chip->regs->output + NBANK(chip)); - if (ret != 0) + if (ret) goto out; ret = regcache_sync_region(chip->regmap, chip->regs->direction, chip->regs->direction + NBANK(chip)); - if (ret != 0) + if (ret) goto out; /* set platform specific polarity inversion */ @@ -1061,14 +1061,14 @@ static int pca953x_regcache_sync(struct device *dev) */ ret = regcache_sync_region(chip->regmap, chip->regs->direction, chip->regs->direction + NBANK(chip)); - if (ret != 0) { + if (ret) { dev_err(dev, "Failed to sync GPIO dir registers: %d\n", ret); return ret; } ret = regcache_sync_region(chip->regmap, chip->regs->output, chip->regs->output + NBANK(chip)); - if (ret != 0) { + if (ret) { dev_err(dev, "Failed to sync GPIO out registers: %d\n", ret); return ret; } @@ -1077,7 +1077,7 @@ static int pca953x_regcache_sync(struct device *dev) if (chip->driver_data & PCA_PCAL) { ret = regcache_sync_region(chip->regmap, PCAL953X_IN_LATCH, PCAL953X_IN_LATCH + NBANK(chip)); - if (ret != 0) { + if (ret) { dev_err(dev, "Failed to sync INT latch registers: %d\n", ret); return ret; @@ -1085,7 +1085,7 @@ static int pca953x_regcache_sync(struct device *dev) ret = regcache_sync_region(chip->regmap, PCAL953X_INT_MASK, PCAL953X_INT_MASK + NBANK(chip)); - if (ret != 0) { + if (ret) { dev_err(dev, "Failed to sync INT mask registers: %d\n", ret); return ret; @@ -1117,7 +1117,7 @@ static int pca953x_resume(struct device *dev) if (!atomic_read(&chip->wakeup_path)) { ret = regulator_enable(chip->regulator); - if (ret != 0) { + if (ret) { dev_err(dev, "Failed to enable regulator: %d\n", ret); return 0; } @@ -1130,7 +1130,7 @@ static int pca953x_resume(struct device *dev) return ret; ret = regcache_sync(chip->regmap); - if (ret != 0) { + if (ret) { dev_err(dev, "Failed to restore register map: %d\n", ret); return ret; } -- cgit v1.2.3 From f4160faac98c36556231621b03b44b646508b08e Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 1 Aug 2019 20:39:38 +0300 Subject: gpio: pca953x: Drop %s for constant string literals There is no need to use %s for constant string literals w/o special characters inside. Signed-off-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpio-pca953x.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/gpio/gpio-pca953x.c') diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 454bbe2fb41f..64d02ca60f53 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -1038,8 +1038,7 @@ static int pca953x_remove(struct i2c_client *client) ret = pdata->teardown(client, chip->gpio_chip.base, chip->gpio_chip.ngpio, pdata->context); if (ret < 0) - dev_err(&client->dev, "%s failed, %d\n", - "teardown", ret); + dev_err(&client->dev, "teardown failed, %d\n", ret); } else { ret = 0; } -- cgit v1.2.3