atmel_spi: label GPIOs better

Make the atmel_spi driver label GPIOs according to the device for which
they're acting as a chipselect.  This way the debugfs dump of gpio state is
more informative.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index 0d342dcdd302e176e9178971c0961789fb55b596..ff6a14bf128007d268eedf6bb999a89227d00f05 100644 (file)
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -497,7 +497,7 @@ static int atmel_spi_setup(struct spi_device *spi)
        /* chipselect must have been muxed as GPIO (e.g. in board setup) */
        npcs_pin = (unsigned int)spi->controller_data;
        if (!spi->controller_state) {
-               ret = gpio_request(npcs_pin, "spi_npcs");
+               ret = gpio_request(npcs_pin, spi->dev.bus_id);
                if (ret)
                        return ret;
                spi->controller_state = (void *)npcs_pin;