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authorLinus Walleij <linus.walleij@linaro.org>2018-12-02 09:43:18 +0100
committerUlf Hansson <ulf.hansson@linaro.org>2018-12-17 08:26:24 +0100
commit5716fb9bd9c6d3e56da07d6ed219dfcfce7d7006 (patch)
tree6e9b2496a59427fb423fab35e87bacce07df0a7d /arch
parentb0d06f1cb0e2079a3c64fb6e27c19d9a55c723a1 (diff)
mmc: spi: Convert to use GPIO descriptors
Switch the SPI MMC driver to use GPIO descriptors internally and just look those up using the standard slot GPIO functions mmc_gpiod_request_cd() and mmc_gpiod_request_ro(). Make sure to request index 0 and 1 in accordance with the SPI MMC DT binding, and add the same GPIOs in machine descriptor tables on all boards that use SPI MMC in board files. 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: Hartley Sweeten <hsweeten@visionengravers.com> # Vision EP9307 Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-ep93xx/simone.c14
-rw-r--r--arch/arm/mach-ep93xx/vision_ep9307.c17
-rw-r--r--arch/sh/boards/mach-ecovec24/setup.c17
3 files changed, 38 insertions, 10 deletions
diff --git a/arch/arm/mach-ep93xx/simone.c b/arch/arm/mach-ep93xx/simone.c
index 41aa57581356..80ccb984d521 100644
--- a/arch/arm/mach-ep93xx/simone.c
+++ b/arch/arm/mach-ep93xx/simone.c
@@ -25,6 +25,7 @@
#include <linux/platform_data/video-ep93xx.h>
#include <linux/platform_data/spi-ep93xx.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <mach/hardware.h>
#include <mach/gpio-ep93xx.h>
@@ -45,9 +46,15 @@ static struct ep93xxfb_mach_info __initdata simone_fb_info = {
static struct mmc_spi_platform_data simone_mmc_spi_data = {
.detect_delay = 500,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
- .flags = MMC_SPI_USE_CD_GPIO,
- .cd_gpio = EP93XX_GPIO_LINE_EGPIO0,
- .cd_debounce = 1,
+};
+
+static struct gpiod_lookup_table simone_mmc_spi_gpio_table = {
+ .dev_id = "mmc_spi.0", /* "mmc_spi" @ CS0 */
+ .table = {
+ /* Card detect */
+ GPIO_LOOKUP_IDX("A", 0, NULL, 0, GPIO_ACTIVE_LOW),
+ { },
+ },
};
static struct spi_board_info simone_spi_devices[] __initdata = {
@@ -105,6 +112,7 @@ static void __init simone_init_machine(void)
ep93xx_register_fb(&simone_fb_info);
ep93xx_register_i2c(simone_i2c_board_info,
ARRAY_SIZE(simone_i2c_board_info));
+ gpiod_add_lookup_table(&simone_mmc_spi_gpio_table);
ep93xx_register_spi(&simone_spi_info, simone_spi_devices,
ARRAY_SIZE(simone_spi_devices));
simone_register_audio();
diff --git a/arch/arm/mach-ep93xx/vision_ep9307.c b/arch/arm/mach-ep93xx/vision_ep9307.c
index 5a0b6187990a..767ee64628dc 100644
--- a/arch/arm/mach-ep93xx/vision_ep9307.c
+++ b/arch/arm/mach-ep93xx/vision_ep9307.c
@@ -18,6 +18,7 @@
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/fb.h>
#include <linux/io.h>
#include <linux/mtd/partitions.h>
@@ -202,13 +203,20 @@ static struct mmc_spi_platform_data vision_spi_mmc_data = {
.detect_delay = 100,
.powerup_msecs = 100,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
- .flags = MMC_SPI_USE_CD_GPIO | MMC_SPI_USE_RO_GPIO,
- .cd_gpio = EP93XX_GPIO_LINE_EGPIO15,
- .cd_debounce = 1,
- .ro_gpio = EP93XX_GPIO_LINE_F(0),
.caps2 = MMC_CAP2_RO_ACTIVE_HIGH,
};
+static struct gpiod_lookup_table vision_spi_mmc_gpio_table = {
+ .dev_id = "mmc_spi.2", /* "mmc_spi @ CS2 */
+ .table = {
+ /* Card detect */
+ GPIO_LOOKUP_IDX("B", 7, NULL, 0, GPIO_ACTIVE_LOW),
+ /* Write protect */
+ GPIO_LOOKUP_IDX("F", 0, NULL, 1, GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
/*************************************************************************
* SPI Bus
*************************************************************************/
@@ -286,6 +294,7 @@ static void __init vision_init_machine(void)
ep93xx_register_i2c(vision_i2c_info,
ARRAY_SIZE(vision_i2c_info));
+ gpiod_add_lookup_table(&vision_spi_mmc_gpio_table);
ep93xx_register_spi(&vision_spi_master, vision_spi_board_info,
ARRAY_SIZE(vision_spi_board_info));
vision_register_i2s();
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 06a894526a0b..3097307b7cb7 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -776,9 +776,19 @@ static struct mmc_spi_platform_data mmc_spi_info = {
.caps2 = MMC_CAP2_RO_ACTIVE_HIGH,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, /* 3.3V only */
.setpower = mmc_spi_setpower,
- .flags = MMC_SPI_USE_CD_GPIO | MMC_SPI_USE_RO_GPIO,
- .cd_gpio = GPIO_PTY7,
- .ro_gpio = GPIO_PTY6,
+};
+
+static struct gpiod_lookup_table mmc_spi_gpio_table = {
+ .dev_id = "mmc_spi.0", /* device "mmc_spi" @ CS0 */
+ .table = {
+ /* Card detect */
+ GPIO_LOOKUP_IDX("sh7724_pfc", GPIO_PTY7, NULL, 0,
+ GPIO_ACTIVE_LOW),
+ /* Write protect */
+ GPIO_LOOKUP_IDX("sh7724_pfc", GPIO_PTY6, NULL, 1,
+ GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct spi_board_info spi_bus[] = {
@@ -1282,6 +1292,7 @@ static int __init arch_setup(void)
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);
spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
#endif