diff options
| author | Linus Walleij | 2017-12-29 13:22:58 +0100 |
|---|---|---|
| committer | Linus Walleij | 2018-01-03 08:46:08 +0100 |
| commit | 088413bc0bd5f5fb66ca22a19d66a49d7154ba4c (patch) | |
| tree | 35c4a2e7633d32f2973c8c3a6fbf20f98a57cee7 | |
| parent | 156dd39219b159d03762af32f1a0acd05d0cd726 (diff) | |
gpio: omap: Give unique labels to each GPIO bank/chip
As we need to add GPIO lookup tables to the OMAP platforms, we
need to reference each GPIO chip with a unique label. Use the GPIO
base to name each chip, "gpio-0-31", "gpio-32-63" etc.
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Kevin Hilman <khilman@kernel.org>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpio-omap.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index 05bae9f42f52..ab5035b96886 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -1060,6 +1060,7 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc) { struct gpio_irq_chip *irq; static int gpio; + const char *label; int irq_base = 0; int ret; @@ -1081,7 +1082,11 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc) bank->chip.parent = &omap_mpuio_device.dev; bank->chip.base = OMAP_MPUIO(0); } else { - bank->chip.label = "gpio"; + label = devm_kasprintf(bank->chip.parent, GFP_KERNEL, "gpio-%d-%d", + gpio, gpio + bank->width - 1); + if (!label) + return -ENOMEM; + bank->chip.label = label; bank->chip.base = gpio; } bank->chip.ngpio = bank->width; |