Currently the drivers supports only the GPIO based i/o pins. But there are Exynos SoC's that use the same controller with dedicated i/o pins.
This patch provides provision to support gpio/dedicated pins. The decision is made by parsing the "gpios" property in the spi node. Signed-off-by: Girish K S <ks.g...@samsung.com> --- changes in v2: Removed the gpio quirk. Parse the "gpios" property to decide whether gpio / dedicated i/o lines should be used. drivers/spi/spi-s3c64xx.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 45bad5d..a8fe876 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -1157,6 +1157,9 @@ static int s3c64xx_spi_parse_dt_gpio(struct s3c64xx_spi_driver_data *sdd) struct device *dev = &sdd->pdev->dev; int idx, gpio, ret; + if (!of_find_property(dev->of_node, "gpios", NULL)) + return 0; + /* find gpios for mosi, miso and clock lines */ for (idx = 0; idx < 3; idx++) { gpio = of_get_gpio(dev->of_node, idx); @@ -1183,6 +1186,11 @@ free_gpio: static void s3c64xx_spi_dt_gpio_free(struct s3c64xx_spi_driver_data *sdd) { unsigned int idx; + struct device *dev = &sdd->pdev->dev; + + if (!of_find_property(dev->of_node, "gpios", NULL)) + return; + for (idx = 0; idx < 3; idx++) gpio_free(sdd->gpios[idx]); } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/