| Message ID | 20180105160935.48588-3-andriy.shevchenko@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | ACPI, ASoC, gpio: Add and use acpi_dev_get_first_match_name() | expand |
On Fri, Jan 05, 2018 at 06:09:34PM +0200, Andy Shevchenko wrote: > The driver needs the pin control device name for ACPI. > > We are looking through ACPI namespace and return first found device > based on ACPI HID for Intel Merrifield FLIS (pin control device). > > Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Fri, Jan 5, 2018 at 5:09 PM, Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote: > The driver needs the pin control device name for ACPI. > > We are looking through ACPI namespace and return first found device > based on ACPI HID for Intel Merrifield FLIS (pin control device). > > Cc: Mika Westerberg <mika.westerberg@linux.intel.com> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Looks neat and clean. Acked-by: Linus Walleij <linus.walleij@linaro.org> Rafael: feel free to pick this up with the series. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/gpio/gpio-merrifield.c b/drivers/gpio/gpio-merrifield.c index dd67a31ac337..c38624ea0251 100644 --- a/drivers/gpio/gpio-merrifield.c +++ b/drivers/gpio/gpio-merrifield.c @@ -9,6 +9,7 @@ * published by the Free Software Foundation. */ +#include <linux/acpi.h> #include <linux/bitops.h> #include <linux/gpio/driver.h> #include <linux/init.h> @@ -380,9 +381,16 @@ static void mrfld_irq_init_hw(struct mrfld_gpio *priv) } } +static const char *mrfld_gpio_get_pinctrl_dev_name(void) +{ + const char *dev_name = acpi_dev_get_first_match_name("INTC1002", NULL, -1); + return dev_name ? dev_name : "pinctrl-merrifield"; +} + static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id) { const struct mrfld_gpio_pinrange *range; + const char *pinctrl_dev_name; struct mrfld_gpio *priv; u32 gpio_base, irq_base; void __iomem *base; @@ -439,10 +447,11 @@ static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id return retval; } + pinctrl_dev_name = mrfld_gpio_get_pinctrl_dev_name(); for (i = 0; i < ARRAY_SIZE(mrfld_gpio_ranges); i++) { range = &mrfld_gpio_ranges[i]; retval = gpiochip_add_pin_range(&priv->chip, - "pinctrl-merrifield", + pinctrl_dev_name, range->gpio_base, range->pin_base, range->npins);
The driver needs the pin control device name for ACPI. We are looking through ACPI namespace and return first found device based on ACPI HID for Intel Merrifield FLIS (pin control device). Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/gpio/gpio-merrifield.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)