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authorLinus Walleij <linus.walleij@linaro.org>2018-12-02 11:43:20 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2018-12-17 10:26:24 +0300
commitd2951dfa070ddb3ae3c48ea8a5d7acb2fa8614bd (patch)
tree47a8b78838d507a1657f6c7cffa721b694720eb7 /arch/arm/mach-s3c24xx/mach-mini2440.c
parentfaed9303067a0bd9d8ddb09c0de3bc742334773a (diff)
downloadlinux-d2951dfa070ddb3ae3c48ea8a5d7acb2fa8614bd.tar.xz
mmc: s3cmci: Use the slot GPIO descriptor
Simplify things by making the S3CMCI driver just use slot GPIO with descriptors instead of passing around the global GPIO numbers that we want to get rid of. Getting the names of the GPIO chips into the machine descriptor tables was a bit of a challenge but I think I have them right. The platform data supports passing in inversion flags, but no platform is using them, and it is highly unlikely that we will add more, so drop them. The long term plan is to let the inversion flags on the GPIO machine descriptor do the job. The lines are flagged as GPIO_ACTIVE_[LOW|HIGH] as that is what they are, and since we can now rely on the descriptors to have the right polarity, we set the "override_active_level" to false in mmc_gpiod_request_cd() and mmc_gpiod_request_ro(). Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Sergio Prado <sergio.prado@e-labworks.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'arch/arm/mach-s3c24xx/mach-mini2440.c')
-rw-r--r--arch/arm/mach-s3c24xx/mach-mini2440.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/arm/mach-s3c24xx/mach-mini2440.c b/arch/arm/mach-s3c24xx/mach-mini2440.c
index 50d67d760efd..9035f868fb34 100644
--- a/arch/arm/mach-s3c24xx/mach-mini2440.c
+++ b/arch/arm/mach-s3c24xx/mach-mini2440.c
@@ -15,6 +15,7 @@
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/serial_core.h>
@@ -234,13 +235,22 @@ static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
/* MMC/SD */
static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
- .gpio_detect = S3C2410_GPG(8),
- .gpio_wprotect = S3C2410_GPH(8),
.wprotect_invert = 1,
.set_power = NULL,
.ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
};
+static struct gpiod_lookup_table mini2440_mmc_gpio_table = {
+ .dev_id = "s3c2410-sdi",
+ .table = {
+ /* Card detect S3C2410_GPG(8) */
+ GPIO_LOOKUP("GPG", 8, "cd", GPIO_ACTIVE_LOW),
+ /* Write protect S3C2410_GPH(8) */
+ GPIO_LOOKUP("GPH", 8, "wp", GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
/* NAND Flash on MINI2440 board */
static struct mtd_partition mini2440_default_nand_part[] __initdata = {
@@ -696,6 +706,7 @@ static void __init mini2440_init(void)
}
s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
+ gpiod_add_lookup_table(&mini2440_mmc_gpio_table);
s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
s3c_nand_set_platdata(&mini2440_nand_info);
s3c_i2c0_set_platdata(NULL);