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authorGeert Uytterhoeven <geert+renesas@glider.be>2019-04-03 17:08:52 +0200
committerMark Brown <broonie@kernel.org>2019-04-04 13:00:47 +0700
commit9fda6693335cd51b0a74cffaac266c83439f7efe (patch)
tree0fc3b0ee927125bb11444fb6f37728666294c95c /arch/sh
parent1a8fa5166ec53927e2c978bce9a107c9f8d5bf60 (diff)
downloadlinux-9fda6693335cd51b0a74cffaac266c83439f7efe.tar.bz2
spi: sh-msiof: Convert to use GPIO descriptors
Convert GPIO chip selects in the Renesas MSIOF SPI driver from legacy GPIO numbers to GPIO descriptors. Notes: - The board file for the SH7724-based Ecovec24 development board now registers a GPIO descriptor lookup, instead of passing a GPIO number through controller_data, - sh_msiof_get_cs_gpios() must release all GPIOs, else spi_get_gpio_descs() cannot claim them during SPI controller registration. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/boards/mach-ecovec24/setup.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 34e5414c5563..f402aa741bf3 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -806,7 +806,6 @@ static struct spi_board_info spi_bus[] = {
.platform_data = &mmc_spi_info,
.max_speed_hz = 5000000,
.mode = SPI_MODE_0,
- .controller_data = (void *) GPIO_PTM4,
},
};
@@ -838,6 +837,14 @@ static struct platform_device msiof0_device = {
.resource = msiof0_resources,
};
+static struct gpiod_lookup_table msiof_gpio_table = {
+ .dev_id = "spi_sh_msiof.0",
+ .table = {
+ GPIO_LOOKUP("sh7724_pfc", GPIO_PTM4, "cs", GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
#endif
/* FSI */
@@ -1296,12 +1303,11 @@ static int __init arch_setup(void)
gpio_request(GPIO_FN_MSIOF0_TXD, NULL);
gpio_request(GPIO_FN_MSIOF0_RXD, NULL);
gpio_request(GPIO_FN_MSIOF0_TSCK, NULL);
- gpio_request(GPIO_PTM4, NULL); /* software CS control of TSYNC pin */
- gpio_direction_output(GPIO_PTM4, 1); /* active low CS */
gpio_request(GPIO_PTB6, NULL); /* 3.3V power control */
gpio_direction_output(GPIO_PTB6, 0); /* disable power by default */
gpiod_add_lookup_table(&mmc_spi_gpio_table);
+ gpiod_add_lookup_table(&msiof_gpio_table);
spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
#endif