From: Girish K S <girishks2...@gmail.com> 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> --- drivers/spi/spi-s3c64xx.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index a6fdc71..79de18f 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -1111,6 +1111,9 @@ 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); @@ -1137,6 +1140,11 @@ 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]); } -- 1.7.5.4 ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ spi-devel-general mailing list spi-devel-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/spi-devel-general