diff options
| author | Doug Berger <opendmb@gmail.com> | 2024-04-23 11:46:05 -0700 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-04-24 10:31:44 +0200 |
| commit | ec37529e544c59bb8ba35fd950c7bec28e5d54ee (patch) | |
| tree | fcecb8fce0c62590f587de9b28b53dbd0eddd610 /drivers/gpio | |
| parent | 8a7a6103258715857310253ec2193bcc4d1d7082 (diff) | |
gpio: brcmstb: Use dynamic GPIO base numbers
Forcing a gpiochip to have a fixed base number now leads to a warning
message. Remove the need to do so by using the offset value of the
gpiochip.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Signed-off-by: Doug Berger <opendmb@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240423184605.2094376-1-opendmb@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-brcmstb.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c index a789af4a5c85..790cb278b72a 100644 --- a/drivers/gpio/gpio-brcmstb.c +++ b/drivers/gpio/gpio-brcmstb.c @@ -50,7 +50,6 @@ struct brcmstb_gpio_priv { struct irq_domain *irq_domain; struct irq_chip irq_chip; int parent_irq; - int gpio_base; int num_gpios; int parent_wake_irq; }; @@ -92,7 +91,7 @@ brcmstb_gpio_get_active_irqs(struct brcmstb_gpio_bank *bank) static int brcmstb_gpio_hwirq_to_offset(irq_hw_number_t hwirq, struct brcmstb_gpio_bank *bank) { - return hwirq - (bank->gc.base - bank->parent_priv->gpio_base); + return hwirq - bank->gc.offset; } static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank, @@ -118,7 +117,7 @@ static int brcmstb_gpio_to_irq(struct gpio_chip *gc, unsigned offset) { struct brcmstb_gpio_priv *priv = brcmstb_gpio_gc_to_priv(gc); /* gc_offset is relative to this gpio_chip; want real offset */ - int hwirq = offset + (gc->base - priv->gpio_base); + int hwirq = offset + gc->offset; if (hwirq >= priv->num_gpios) return -ENXIO; @@ -263,7 +262,7 @@ static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank) { struct brcmstb_gpio_priv *priv = bank->parent_priv; struct irq_domain *domain = priv->irq_domain; - int hwbase = bank->gc.base - priv->gpio_base; + int hwbase = bank->gc.offset; unsigned long status; while ((status = brcmstb_gpio_get_active_irqs(bank))) { @@ -412,7 +411,7 @@ static int brcmstb_gpio_of_xlate(struct gpio_chip *gc, if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells)) return -EINVAL; - offset = gpiospec->args[0] - (gc->base - priv->gpio_base); + offset = gpiospec->args[0] - bank->gc.offset; if (offset >= gc->ngpio || offset < 0) return -EINVAL; @@ -596,8 +595,8 @@ static int brcmstb_gpio_probe(struct platform_device *pdev) const __be32 *p; u32 bank_width; int num_banks = 0; + int num_gpios = 0; int err; - static int gpio_base; unsigned long flags = 0; bool need_wakeup_event = false; @@ -611,7 +610,6 @@ static int brcmstb_gpio_probe(struct platform_device *pdev) if (IS_ERR(reg_base)) return PTR_ERR(reg_base); - priv->gpio_base = gpio_base; priv->reg_base = reg_base; priv->pdev = pdev; @@ -651,7 +649,7 @@ static int brcmstb_gpio_probe(struct platform_device *pdev) dev_dbg(dev, "Width 0 found: Empty bank @ %d\n", num_banks); num_banks++; - gpio_base += MAX_GPIO_PER_BANK; + num_gpios += MAX_GPIO_PER_BANK; continue; } @@ -691,7 +689,6 @@ static int brcmstb_gpio_probe(struct platform_device *pdev) err = -ENOMEM; goto fail; } - gc->base = gpio_base; gc->of_gpio_n_cells = 2; gc->of_xlate = brcmstb_gpio_of_xlate; /* not all ngpio lines are valid, will use bank width later */ @@ -713,7 +710,7 @@ static int brcmstb_gpio_probe(struct platform_device *pdev) bank->id); goto fail; } - gpio_base += gc->ngpio; + num_gpios += gc->ngpio; dev_dbg(dev, "bank=%d, base=%d, ngpio=%d, width=%d\n", bank->id, gc->base, gc->ngpio, bank->width); @@ -724,7 +721,7 @@ static int brcmstb_gpio_probe(struct platform_device *pdev) num_banks++; } - priv->num_gpios = gpio_base - priv->gpio_base; + priv->num_gpios = num_gpios; if (priv->parent_irq > 0) { err = brcmstb_gpio_irq_setup(pdev, priv); if (err) |