On Thu, Jul 30, 2020 at 06:28:01PM +0300, Serge Semin wrote:
> Add a new macro DWAPB_MAX_GPIOS which defines the maximum possible number
> of GPIO lines corresponding to the maximum DW APB GPIO controller port
> width. Use the new macro instead of number literal 32 where it's
> applicable.
Reviewed-by: Andy Shevchenko
> Suggested-by: Andy Shevchenko
> Signed-off-by: Serge Semin
> ---
> drivers/gpio/gpio-dwapb.c| 8
> include/linux/platform_data/gpio-dwapb.h | 4 +++-
> 2 files changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
> index 3081213247d8..f34001152850 100644
> --- a/drivers/gpio/gpio-dwapb.c
> +++ b/drivers/gpio/gpio-dwapb.c
> @@ -162,7 +162,7 @@ static struct dwapb_gpio_port *dwapb_offs_to_port(struct
> dwapb_gpio *gpio, unsig
>
> for (i = 0; i < gpio->nr_ports; i++) {
> port = >ports[i];
> - if (port->idx == offs / 32)
> + if (port->idx == offs / DWAPB_MAX_GPIOS)
> return port;
> }
>
> @@ -182,7 +182,7 @@ static void dwapb_toggle_trigger(struct dwapb_gpio *gpio,
> unsigned int offs)
>
> pol = dwapb_read(gpio, GPIO_INT_POLARITY);
> /* Just read the current value right out of the data register */
> - val = gc->get(gc, offs % 32);
> + val = gc->get(gc, offs % DWAPB_MAX_GPIOS);
> if (val)
> pol &= ~BIT(offs);
> else
> @@ -197,7 +197,7 @@ static u32 dwapb_do_irq(struct dwapb_gpio *gpio)
> irq_hw_number_t hwirq;
>
> irq_status = dwapb_read(gpio, GPIO_INTSTATUS);
> - for_each_set_bit(hwirq, _status, 32) {
> + for_each_set_bit(hwirq, _status, DWAPB_MAX_GPIOS) {
> int gpio_irq = irq_find_mapping(gpio->domain, hwirq);
> u32 irq_type = irq_get_trigger_type(gpio_irq);
>
> @@ -599,7 +599,7 @@ static struct dwapb_platform_data
> *dwapb_gpio_get_pdata(struct device *dev)
> dev_info(dev,
>"failed to get number of gpios for port%d\n",
>i);
> - pp->ngpio = 32;
> + pp->ngpio = DWAPB_MAX_GPIOS;
> }
>
> pp->irq_shared = false;
> diff --git a/include/linux/platform_data/gpio-dwapb.h
> b/include/linux/platform_data/gpio-dwapb.h
> index ff1be737bad6..0aa5c6720259 100644
> --- a/include/linux/platform_data/gpio-dwapb.h
> +++ b/include/linux/platform_data/gpio-dwapb.h
> @@ -6,12 +6,14 @@
> #ifndef GPIO_DW_APB_H
> #define GPIO_DW_APB_H
>
> +#define DWAPB_MAX_GPIOS 32
> +
> struct dwapb_port_property {
> struct fwnode_handle *fwnode;
> unsigned intidx;
> unsigned intngpio;
> unsigned intgpio_base;
> - int irq[32];
> + int irq[DWAPB_MAX_GPIOS];
> boolirq_shared;
> };
>
> --
> 2.27.0
>
--
With Best Regards,
Andy Shevchenko
