diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2022-01-25 01:58:36 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-01-31 15:17:27 +0000 |
| commit | 31455bbda2081af83f72bb4636348b12b82c37c1 (patch) | |
| tree | b5a6bfb26ac2ccbd2c52a71d220b708250010337 /arch/arm/mach-pxa/hx4700.c | |
| parent | 20dc69ca1023b7e4c4af3c3495aa5a91e1a9be39 (diff) | |
| download | linux-31455bbda2081af83f72bb4636348b12b82c37c1.tar.bz2 | |
spi: pxa2xx_spi: Convert to use GPIO descriptors
This converts the PXA2xx SPI driver to use GPIO descriptors
exclusively to retrieve GPIO chip select lines.
The device tree and ACPI paths of the driver already use
descriptors, hence ->use_gpio_descriptors is already set and
this codepath is well tested.
Convert all the PXA boards providing chip select GPIOs as
platform data and drop the old GPIO chipselect handling in
favor of the core managing it exclusively.
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220125005836.494807-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'arch/arm/mach-pxa/hx4700.c')
| -rw-r--r-- | arch/arm/mach-pxa/hx4700.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c index 1d4c5db54be2..e1870fbb19e7 100644 --- a/arch/arm/mach-pxa/hx4700.c +++ b/arch/arm/mach-pxa/hx4700.c @@ -616,7 +616,6 @@ static struct pxa2xx_spi_chip tsc2046_chip = { .tx_threshold = 1, .rx_threshold = 2, .timeout = 64, - .gpio_cs = GPIO88_HX4700_TSC2046_CS, }; static struct spi_board_info tsc2046_board_info[] __initdata = { @@ -635,6 +634,14 @@ static struct pxa2xx_spi_controller pxa_ssp2_master_info = { .enable_dma = 1, }; +static struct gpiod_lookup_table pxa_ssp2_gpio_table = { + .dev_id = "pxa2xx-spi.2", + .table = { + GPIO_LOOKUP_IDX("gpio-pxa", GPIO88_HX4700_TSC2046_CS, "cs", 0, GPIO_ACTIVE_LOW), + { }, + }, +}; + /* * External power */ @@ -896,6 +903,7 @@ static void __init hx4700_init(void) pxa_set_i2c_info(NULL); i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info)); i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info)); + gpiod_add_lookup_table(&pxa_ssp2_gpio_table); pxa2xx_set_spi_info(2, &pxa_ssp2_master_info); spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info)); |