diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2019-04-20 13:05:59 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-05-02 10:37:59 +0900 |
| commit | 1dfbf334f12361ebe6269c5918328b755ee960c7 (patch) | |
| tree | 618248d5bb12a03322895255cb2dccc1f29bf153 /arch/arm/mach-ep93xx/edb93xx.c | |
| parent | 2a168e10d6db7b77190c55d994e42fc5a58fc8e5 (diff) | |
spi: ep93xx: Convert to use CS GPIO descriptors
This converts the EP93xx SPI master driver to use GPIO
descriptors for chip select handling.
EP93xx was using platform data to pass in GPIO lines,
by converting all board files to use GPIO descriptor
tables the core will look up the GPIO lines from the
SPI device in the same manner as for device tree.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'arch/arm/mach-ep93xx/edb93xx.c')
| -rw-r--r-- | arch/arm/mach-ep93xx/edb93xx.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/arm/mach-ep93xx/edb93xx.c b/arch/arm/mach-ep93xx/edb93xx.c index 8e89ec8b6f0f..34e18e9556d9 100644 --- a/arch/arm/mach-ep93xx/edb93xx.c +++ b/arch/arm/mach-ep93xx/edb93xx.c @@ -29,6 +29,7 @@ #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/spi/spi.h> +#include <linux/gpio/machine.h> #include <sound/cs4271.h> @@ -105,13 +106,16 @@ static struct spi_board_info edb93xx_spi_board_info[] __initdata = { }, }; -static int edb93xx_spi_chipselects[] __initdata = { - EP93XX_GPIO_LINE_EGPIO6, +static struct gpiod_lookup_table edb93xx_spi_cs_gpio_table = { + .dev_id = "ep93xx-spi.0", + .table = { + GPIO_LOOKUP("A", 6, "cs", GPIO_ACTIVE_LOW), + { }, + }, }; static struct ep93xx_spi_info edb93xx_spi_info __initdata = { - .chipselect = edb93xx_spi_chipselects, - .num_chipselect = ARRAY_SIZE(edb93xx_spi_chipselects), + /* Intentionally left blank */ }; static void __init edb93xx_register_spi(void) @@ -123,6 +127,7 @@ static void __init edb93xx_register_spi(void) else if (machine_is_edb9315a()) edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14; + gpiod_add_lookup_table(&edb93xx_spi_cs_gpio_table); ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info, ARRAY_SIZE(edb93xx_spi_board_info)); } |