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Date: Fri, 15 Sep 2017 17:23:09 -0500
From: Grygorii Strashko <grygorii.strashko@...com>
To: Thierry Reding <thierry.reding@...il.com>,
Linus Walleij <linus.walleij@...aro.org>
CC: Jonathan Hunter <jonathanh@...dia.com>,
<linux-gpio@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 12/16] gpio: omap: Fix checkpatch warnings
On 09/01/2017 01:57 PM, Thierry Reding wrote:
> From: Thierry Reding <treding@...dia.com>
>
> Use unsigned int rather than unsigned, wrap lines longer than 80
> characters and other minor coding style cleanups.
>
> Signed-off-by: Thierry Reding <treding@...dia.com>
I think it can be separated from this series.
Acked-by: Grygorii Strashko <grygorii.strashko@...com>
> ---
> drivers/gpio/gpio-omap.c | 113 ++++++++++++++++++++++++++---------------------
> 1 file changed, 63 insertions(+), 50 deletions(-)
>
> diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
> index ce27d6a586bf..7c600cec3e44 100644
> --- a/drivers/gpio/gpio-omap.c
> +++ b/drivers/gpio/gpio-omap.c
> @@ -76,7 +76,8 @@ struct gpio_bank {
> int power_mode;
> bool workaround_enabled;
>
> - void (*set_dataout)(struct gpio_bank *bank, unsigned gpio, int enable);
> + void (*set_dataout)(struct gpio_bank *bank, unsigned int gpio,
> + int enable);
> int (*get_context_loss_count)(struct device *dev);
>
> struct omap_gpio_reg_offs *regs;
> @@ -92,6 +93,7 @@ static void omap_gpio_unmask_irq(struct irq_data *d);
> static inline struct gpio_bank *omap_irq_data_get_bank(struct irq_data *d)
> {
> struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
> +
> return gpiochip_get_data(chip);
> }
>
> @@ -113,8 +115,8 @@ static void omap_set_gpio_direction(struct gpio_bank *bank, int gpio,
>
>
> /* set data out value using dedicate set/clear register */
> -static void omap_set_gpio_dataout_reg(struct gpio_bank *bank, unsigned offset,
> - int enable)
> +static void omap_set_gpio_dataout_reg(struct gpio_bank *bank,
> + unsigned int offset, int enable)
> {
> void __iomem *reg = bank->base;
> u32 l = BIT(offset);
> @@ -131,8 +133,8 @@ static void omap_set_gpio_dataout_reg(struct gpio_bank *bank, unsigned offset,
> }
>
> /* set data out value using mask register */
> -static void omap_set_gpio_dataout_mask(struct gpio_bank *bank, unsigned offset,
> - int enable)
> +static void omap_set_gpio_dataout_mask(struct gpio_bank *bank,
> + unsigned int offset, int enable)
> {
> void __iomem *reg = bank->base + bank->regs->dataout;
> u32 gpio_bit = BIT(offset);
> @@ -161,7 +163,8 @@ static int omap_get_gpio_dataout(struct gpio_bank *bank, int offset)
> return (readl_relaxed(reg) & (BIT(offset))) != 0;
> }
>
> -static inline void omap_gpio_rmw(void __iomem *base, u32 reg, u32 mask, bool set)
> +static inline void omap_gpio_rmw(void __iomem *base, u32 reg, u32 mask,
> + bool set)
> {
> int l = readl_relaxed(base + reg);
>
> @@ -211,8 +214,8 @@ static inline void omap_gpio_dbck_disable(struct gpio_bank *bank)
> *
> * Return: 0 on success, negative error otherwise.
> */
> -static int omap2_set_gpio_debounce(struct gpio_bank *bank, unsigned offset,
> - unsigned debounce)
> +static int omap2_set_gpio_debounce(struct gpio_bank *bank, unsigned int offset,
> + unsigned int debounce)
> {
> void __iomem *reg;
> u32 val;
> @@ -272,7 +275,8 @@ static int omap2_set_gpio_debounce(struct gpio_bank *bank, unsigned offset,
> * time too. The debounce clock will also be disabled when calling this function
> * if this is the only gpio in the bank using debounce.
> */
> -static void omap_clear_gpio_debounce(struct gpio_bank *bank, unsigned offset)
> +static void omap_clear_gpio_debounce(struct gpio_bank *bank,
> + unsigned int offset)
> {
> u32 gpio_bit = BIT(offset);
>
> @@ -284,8 +288,8 @@ static void omap_clear_gpio_debounce(struct gpio_bank *bank, unsigned offset)
>
> bank->dbck_enable_mask &= ~gpio_bit;
> bank->context.debounce_en &= ~gpio_bit;
> - writel_relaxed(bank->context.debounce_en,
> - bank->base + bank->regs->debounce_en);
> + writel_relaxed(bank->context.debounce_en,
> + bank->base + bank->regs->debounce_en);
>
> if (!bank->dbck_enable_mask) {
> bank->context.debounce = 0;
> @@ -297,7 +301,7 @@ static void omap_clear_gpio_debounce(struct gpio_bank *bank, unsigned offset)
> }
>
> static inline void omap_set_gpio_trigger(struct gpio_bank *bank, int gpio,
> - unsigned trigger)
> + unsigned int trigger)
> {
> void __iomem *base = bank->base;
> u32 gpio_bit = BIT(gpio);
> @@ -321,7 +325,8 @@ static inline void omap_set_gpio_trigger(struct gpio_bank *bank, int gpio,
> readl_relaxed(bank->base + bank->regs->fallingdetect);
>
> if (likely(!(bank->non_wakeup_gpios & gpio_bit))) {
> - omap_gpio_rmw(base, bank->regs->wkup_en, gpio_bit, trigger != 0);
> + omap_gpio_rmw(base, bank->regs->wkup_en, gpio_bit,
> + trigger != 0);
> bank->context.wake_en =
> readl_relaxed(bank->base + bank->regs->wkup_en);
> }
> @@ -376,11 +381,13 @@ static void omap_toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio)
> writel_relaxed(l, reg);
> }
> #else
> -static void omap_toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio) {}
> +static void omap_toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio)
> +{
> +}
> #endif
>
> static int omap_set_gpio_triggering(struct gpio_bank *bank, int gpio,
> - unsigned trigger)
> + unsigned int trigger)
> {
> void __iomem *reg = bank->base;
> void __iomem *base = bank->base;
> @@ -425,7 +432,7 @@ static int omap_set_gpio_triggering(struct gpio_bank *bank, int gpio,
> return 0;
> }
>
> -static void omap_enable_gpio_module(struct gpio_bank *bank, unsigned offset)
> +static void omap_enable_gpio_module(struct gpio_bank *bank, unsigned int offset)
> {
> if (bank->regs->pinctrl) {
> void __iomem *reg = bank->base + bank->regs->pinctrl;
> @@ -446,7 +453,8 @@ static void omap_enable_gpio_module(struct gpio_bank *bank, unsigned offset)
> }
> }
>
> -static void omap_disable_gpio_module(struct gpio_bank *bank, unsigned offset)
> +static void omap_disable_gpio_module(struct gpio_bank *bank,
> + unsigned int offset)
> {
> void __iomem *base = bank->base;
>
> @@ -471,14 +479,14 @@ static void omap_disable_gpio_module(struct gpio_bank *bank, unsigned offset)
> }
> }
>
> -static int omap_gpio_is_input(struct gpio_bank *bank, unsigned offset)
> +static int omap_gpio_is_input(struct gpio_bank *bank, unsigned int offset)
> {
> void __iomem *reg = bank->base + bank->regs->direction;
>
> return readl_relaxed(reg) & BIT(offset);
> }
>
> -static void omap_gpio_init_irq(struct gpio_bank *bank, unsigned offset)
> +static void omap_gpio_init_irq(struct gpio_bank *bank, unsigned int offset)
> {
> if (!LINE_USED(bank->mod_usage, offset)) {
> omap_enable_gpio_module(bank, offset);
> @@ -487,12 +495,12 @@ static void omap_gpio_init_irq(struct gpio_bank *bank, unsigned offset)
> bank->irq_usage |= BIT(offset);
> }
>
> -static int omap_gpio_irq_type(struct irq_data *d, unsigned type)
> +static int omap_gpio_irq_type(struct irq_data *d, unsigned int type)
> {
> struct gpio_bank *bank = omap_irq_data_get_bank(d);
> int retval;
> unsigned long flags;
> - unsigned offset = d->hwirq;
> + unsigned int offset = d->hwirq;
>
> if (type & ~IRQ_TYPE_SENSE_MASK)
> return -EINVAL;
> @@ -544,7 +552,7 @@ static void omap_clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
> }
>
> static inline void omap_clear_gpio_irqstatus(struct gpio_bank *bank,
> - unsigned offset)
> + unsigned int offset)
> {
> omap_clear_gpio_irqbank(bank, BIT(offset));
> }
> @@ -608,7 +616,7 @@ static void omap_disable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
> }
>
> static inline void omap_set_gpio_irqenable(struct gpio_bank *bank,
> - unsigned offset, int enable)
> + unsigned int offset, int enable)
> {
> if (enable)
> omap_enable_gpio_irqbank(bank, BIT(offset));
> @@ -624,7 +632,7 @@ static int omap_gpio_wake_enable(struct irq_data *d, unsigned int enable)
> return irq_set_irq_wake(bank->irq, enable);
> }
>
> -static int omap_gpio_request(struct gpio_chip *chip, unsigned offset)
> +static int omap_gpio_request(struct gpio_chip *chip, unsigned int offset)
> {
> struct gpio_bank *bank = gpiochip_get_data(chip);
> unsigned long flags;
> @@ -644,7 +652,7 @@ static int omap_gpio_request(struct gpio_chip *chip, unsigned offset)
> return 0;
> }
>
> -static void omap_gpio_free(struct gpio_chip *chip, unsigned offset)
> +static void omap_gpio_free(struct gpio_chip *chip, unsigned int offset)
> {
> struct gpio_bank *bank = gpiochip_get_data(chip);
> unsigned long flags;
> @@ -702,9 +710,11 @@ static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
> if (bank->level_mask)
> level_mask = bank->level_mask & enabled;
>
> - /* clear edge sensitive interrupts before handler(s) are
> - called so that we don't miss any interrupt occurred while
> - executing them */
> + /*
> + * clear edge sensitive interrupts before handler(s) are
> + * called so that we don't miss any interrupt occurred while
> + * executing them
> + */
> omap_disable_gpio_irqbank(bank, isr_saved & ~level_mask);
> omap_clear_gpio_irqbank(bank, isr_saved & ~level_mask);
> omap_enable_gpio_irqbank(bank, isr_saved & ~level_mask);
> @@ -715,6 +725,8 @@ static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
> break;
>
> while (isr) {
> + unsigned int irq;
> +
> bit = __ffs(isr);
> isr &= ~(BIT(bit));
>
> @@ -733,8 +745,8 @@ static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
>
> raw_spin_lock_irqsave(&bank->wa_lock, wa_lock_flags);
>
> - generic_handle_irq(irq_find_mapping(bank->chip.irq.domain,
> - bit));
> + irq = irq_find_mapping(bank->chip.irq.domain, bit);
> + generic_handle_irq(irq);
>
> raw_spin_unlock_irqrestore(&bank->wa_lock,
> wa_lock_flags);
> @@ -749,7 +761,7 @@ static unsigned int omap_gpio_irq_startup(struct irq_data *d)
> {
> struct gpio_bank *bank = omap_irq_data_get_bank(d);
> unsigned long flags;
> - unsigned offset = d->hwirq;
> + unsigned int offset = d->hwirq;
>
> raw_spin_lock_irqsave(&bank->lock, flags);
>
> @@ -773,7 +785,7 @@ static void omap_gpio_irq_shutdown(struct irq_data *d)
> {
> struct gpio_bank *bank = omap_irq_data_get_bank(d);
> unsigned long flags;
> - unsigned offset = d->hwirq;
> + unsigned int offset = d->hwirq;
>
> raw_spin_lock_irqsave(&bank->lock, flags);
> bank->irq_usage &= ~(BIT(offset));
> @@ -809,7 +821,7 @@ static void gpio_irq_bus_sync_unlock(struct irq_data *data)
> static void omap_gpio_ack_irq(struct irq_data *d)
> {
> struct gpio_bank *bank = omap_irq_data_get_bank(d);
> - unsigned offset = d->hwirq;
> + unsigned int offset = d->hwirq;
>
> omap_clear_gpio_irqstatus(bank, offset);
> }
> @@ -817,7 +829,7 @@ static void omap_gpio_ack_irq(struct irq_data *d)
> static void omap_gpio_mask_irq(struct irq_data *d)
> {
> struct gpio_bank *bank = omap_irq_data_get_bank(d);
> - unsigned offset = d->hwirq;
> + unsigned int offset = d->hwirq;
> unsigned long flags;
>
> raw_spin_lock_irqsave(&bank->lock, flags);
> @@ -829,7 +841,7 @@ static void omap_gpio_mask_irq(struct irq_data *d)
> static void omap_gpio_unmask_irq(struct irq_data *d)
> {
> struct gpio_bank *bank = omap_irq_data_get_bank(d);
> - unsigned offset = d->hwirq;
> + unsigned int offset = d->hwirq;
> u32 trigger = irqd_get_trigger_type(d);
> unsigned long flags;
>
> @@ -837,8 +849,10 @@ static void omap_gpio_unmask_irq(struct irq_data *d)
> if (trigger)
> omap_set_gpio_triggering(bank, offset, trigger);
>
> - /* For level-triggered GPIOs, the clearing must be done after
> - * the HW source is cleared, thus after the handler has run */
> + /*
> + * For level-triggered GPIOs, the clearing must be done after
> + * the HW source is cleared, thus after the handler has run
> + */
> if (bank->level_mask & BIT(offset)) {
> omap_set_gpio_irqenable(bank, offset, 0);
> omap_clear_gpio_irqstatus(bank, offset);
> @@ -912,7 +926,7 @@ static inline void omap_mpuio_init(struct gpio_bank *bank)
>
> /*---------------------------------------------------------------------*/
>
> -static int omap_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
> +static int omap_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
> {
> struct gpio_bank *bank;
> unsigned long flags;
> @@ -927,7 +941,7 @@ static int omap_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
> return dir;
> }
>
> -static int omap_gpio_input(struct gpio_chip *chip, unsigned offset)
> +static int omap_gpio_input(struct gpio_chip *chip, unsigned int offset)
> {
> struct gpio_bank *bank;
> unsigned long flags;
> @@ -939,7 +953,7 @@ static int omap_gpio_input(struct gpio_chip *chip, unsigned offset)
> return 0;
> }
>
> -static int omap_gpio_get(struct gpio_chip *chip, unsigned offset)
> +static int omap_gpio_get(struct gpio_chip *chip, unsigned int offset)
> {
> struct gpio_bank *bank;
>
> @@ -951,7 +965,8 @@ static int omap_gpio_get(struct gpio_chip *chip, unsigned offset)
> return omap_get_gpio_dataout(bank, offset);
> }
>
> -static int omap_gpio_output(struct gpio_chip *chip, unsigned offset, int value)
> +static int omap_gpio_output(struct gpio_chip *chip, unsigned int offset,
> + int value)
> {
> struct gpio_bank *bank;
> unsigned long flags;
> @@ -964,8 +979,8 @@ static int omap_gpio_output(struct gpio_chip *chip, unsigned offset, int value)
> return 0;
> }
>
> -static int omap_gpio_debounce(struct gpio_chip *chip, unsigned offset,
> - unsigned debounce)
> +static int omap_gpio_debounce(struct gpio_chip *chip, unsigned int offset,
> + unsigned int debounce)
> {
> struct gpio_bank *bank;
> unsigned long flags;
> @@ -985,7 +1000,7 @@ static int omap_gpio_debounce(struct gpio_chip *chip, unsigned offset,
> return ret;
> }
>
> -static int omap_gpio_set_config(struct gpio_chip *chip, unsigned offset,
> +static int omap_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
> unsigned long config)
> {
> u32 debounce;
> @@ -997,7 +1012,8 @@ static int omap_gpio_set_config(struct gpio_chip *chip, unsigned offset,
> return omap_gpio_debounce(chip, offset, debounce);
> }
>
> -static void omap_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
> +static void omap_gpio_set(struct gpio_chip *chip, unsigned int offset,
> + int value)
> {
> struct gpio_bank *bank;
> unsigned long flags;
> @@ -1153,10 +1169,8 @@ static int omap_gpio_probe(struct platform_device *pdev)
> return -EINVAL;
>
> bank = devm_kzalloc(dev, sizeof(struct gpio_bank), GFP_KERNEL);
> - if (!bank) {
> - dev_err(dev, "Memory alloc failed\n");
> + if (!bank)
> return -ENOMEM;
> - }
>
> irqc = devm_kzalloc(dev, sizeof(*irqc), GFP_KERNEL);
> if (!irqc)
> @@ -1217,9 +1231,8 @@ static int omap_gpio_probe(struct platform_device *pdev)
> /* Static mapping, never released */
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> bank->base = devm_ioremap_resource(dev, res);
> - if (IS_ERR(bank->base)) {
> + if (IS_ERR(bank->base))
> return PTR_ERR(bank->base);
> - }
>
> if (bank->dbck_flag) {
> bank->dbck = devm_clk_get(dev, "dbclk");
>
--
regards,
-grygorii
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