spi: lantiq-ssc: Convert to use GPIO descriptors

This switches the Lantiq SSC driver over to use GPIO descriptor
handling in the core.

The driver was already utilizing the core to look up and request
GPIOs from the device tree so this is a pretty small change
just switching it over to use descriptors directly instead.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Link: https://lore.kernel.org/r/20200625202149.209276-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-lantiq-ssc.c b/drivers/spi/spi-lantiq-ssc.c
index 1fd7ee53d45104107a23d68e586ba90c311ff7e5..1cf650e25e318ab6fa0acfb9ffe224831052402f 100644 (file)
--- a/drivers/spi/spi-lantiq-ssc.c
+++ b/drivers/spi/spi-lantiq-ssc.c
@@ -15,7 +15,6 @@
 #include <linux/completion.h>
 #include <linux/spinlock.h>
 #include <linux/err.h>
-#include <linux/gpio.h>
 #include <linux/pm_runtime.h>
 #include <linux/spi/spi.h>
 
@@ -391,7 +390,7 @@ static int lantiq_ssc_setup(struct spi_device *spidev)
        u32 gpocon;
 
        /* GPIOs are used for CS */
-       if (gpio_is_valid(spidev->cs_gpio))
+       if (spidev->cs_gpiod)
                return 0;
 
        dev_dbg(spi->dev, "using internal chipselect %u\n", cs);
@@ -888,6 +887,7 @@ static int lantiq_ssc_probe(struct platform_device *pdev)
 
        master->dev.of_node = pdev->dev.of_node;
        master->num_chipselect = num_cs;
+       master->use_gpio_descriptors = true;
        master->setup = lantiq_ssc_setup;
        master->set_cs = lantiq_ssc_set_cs;
        master->handle_err = lantiq_ssc_handle_err;