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-rw-r--r--arch/arm/mach-imx/devices-imx27.h10
-rw-r--r--arch/arm/mach-imx/devices-imx31.h10
-rw-r--r--arch/arm/mach-imx/devices/devices-common.h5
-rw-r--r--arch/arm/mach-imx/devices/platform-spi_imx.c9
-rw-r--r--arch/arm/mach-imx/mach-mx27_3ds.c40
-rw-r--r--arch/arm/mach-imx/mach-mx31_3ds.c13
-rw-r--r--arch/arm/mach-imx/mach-mx31lilly.c14
-rw-r--r--arch/arm/mach-imx/mach-mx31lite.c19
-rw-r--r--arch/arm/mach-imx/mach-mx31moboard.c12
-rw-r--r--arch/arm/mach-imx/mach-pca100.c21
-rw-r--r--arch/arm/mach-imx/mach-pcm037_eet.c7
-rw-r--r--drivers/spi/spi-fsl-lpspi.c47
-rw-r--r--drivers/spi/spi-imx.c92
-rw-r--r--include/linux/platform_data/spi-imx.h33
14 files changed, 88 insertions, 244 deletions
diff --git a/arch/arm/mach-imx/devices-imx27.h b/arch/arm/mach-imx/devices-imx27.h
index f89f4ae0e1ca..583a1d773d68 100644
--- a/arch/arm/mach-imx/devices-imx27.h
+++ b/arch/arm/mach-imx/devices-imx27.h
@@ -75,11 +75,11 @@ extern const struct imx_mxc_w1_data imx27_mxc_w1_data;
imx_add_mxc_w1(&imx27_mxc_w1_data)
extern const struct imx_spi_imx_data imx27_cspi_data[];
-#define imx27_add_cspi(id, pdata) \
- imx_add_spi_imx(&imx27_cspi_data[id], pdata)
-#define imx27_add_spi_imx0(pdata) imx27_add_cspi(0, pdata)
-#define imx27_add_spi_imx1(pdata) imx27_add_cspi(1, pdata)
-#define imx27_add_spi_imx2(pdata) imx27_add_cspi(2, pdata)
+#define imx27_add_cspi(id, gtable) \
+ imx_add_spi_imx(&imx27_cspi_data[id], gtable)
+#define imx27_add_spi_imx0(gtable) imx27_add_cspi(0, gtable)
+#define imx27_add_spi_imx1(gtable) imx27_add_cspi(1, gtable)
+#define imx27_add_spi_imx2(gtable) imx27_add_cspi(2, gtable)
extern const struct imx_pata_imx_data imx27_pata_imx_data;
#define imx27_add_pata_imx() \
diff --git a/arch/arm/mach-imx/devices-imx31.h b/arch/arm/mach-imx/devices-imx31.h
index 5a4ba35a47ed..f7cc62372532 100644
--- a/arch/arm/mach-imx/devices-imx31.h
+++ b/arch/arm/mach-imx/devices-imx31.h
@@ -69,11 +69,11 @@ extern const struct imx_mxc_w1_data imx31_mxc_w1_data;
imx_add_mxc_w1(&imx31_mxc_w1_data)
extern const struct imx_spi_imx_data imx31_cspi_data[];
-#define imx31_add_cspi(id, pdata) \
- imx_add_spi_imx(&imx31_cspi_data[id], pdata)
-#define imx31_add_spi_imx0(pdata) imx31_add_cspi(0, pdata)
-#define imx31_add_spi_imx1(pdata) imx31_add_cspi(1, pdata)
-#define imx31_add_spi_imx2(pdata) imx31_add_cspi(2, pdata)
+#define imx31_add_cspi(id, gtable) \
+ imx_add_spi_imx(&imx31_cspi_data[id], gtable)
+#define imx31_add_spi_imx0(gtable) imx31_add_cspi(0, gtable)
+#define imx31_add_spi_imx1(gtable) imx31_add_cspi(1, gtable)
+#define imx31_add_spi_imx2(gtable) imx31_add_cspi(2, gtable)
extern const struct imx_pata_imx_data imx31_pata_imx_data;
#define imx31_add_pata_imx() \
diff --git a/arch/arm/mach-imx/devices/devices-common.h b/arch/arm/mach-imx/devices/devices-common.h
index 2a685adec1df..f8f3e4967c31 100644
--- a/arch/arm/mach-imx/devices/devices-common.h
+++ b/arch/arm/mach-imx/devices/devices-common.h
@@ -6,6 +6,7 @@
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/init.h>
+#include <linux/gpio/machine.h>
#include <linux/platform_data/dma-imx-sdma.h>
extern struct device mxc_aips_bus;
@@ -276,7 +277,6 @@ struct platform_device *__init imx_add_sdhci_esdhc_imx(
const struct imx_sdhci_esdhc_imx_data *data,
const struct esdhc_platform_data *pdata);
-#include <linux/platform_data/spi-imx.h>
struct imx_spi_imx_data {
const char *devid;
int id;
@@ -285,8 +285,7 @@ struct imx_spi_imx_data {
int irq;
};
struct platform_device *__init imx_add_spi_imx(
- const struct imx_spi_imx_data *data,
- const struct spi_imx_master *pdata);
+ const struct imx_spi_imx_data *data, struct gpiod_lookup_table *gtable);
struct platform_device *imx_add_imx_dma(char *name, resource_size_t iobase,
int irq, int irq_err);
diff --git a/arch/arm/mach-imx/devices/platform-spi_imx.c b/arch/arm/mach-imx/devices/platform-spi_imx.c
index f2cafa52c187..27747bf628a3 100644
--- a/arch/arm/mach-imx/devices/platform-spi_imx.c
+++ b/arch/arm/mach-imx/devices/platform-spi_imx.c
@@ -3,6 +3,7 @@
* Copyright (C) 2009-2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*/
+#include <linux/gpio/machine.h>
#include "../hardware.h"
#include "devices-common.h"
@@ -57,8 +58,7 @@ const struct imx_spi_imx_data imx35_cspi_data[] __initconst = {
#endif /* ifdef CONFIG_SOC_IMX35 */
struct platform_device *__init imx_add_spi_imx(
- const struct imx_spi_imx_data *data,
- const struct spi_imx_master *pdata)
+ const struct imx_spi_imx_data *data, struct gpiod_lookup_table *gtable)
{
struct resource res[] = {
{
@@ -71,7 +71,8 @@ struct platform_device *__init imx_add_spi_imx(
.flags = IORESOURCE_IRQ,
},
};
-
+ if (gtable)
+ gpiod_add_lookup_table(gtable);
return imx_add_platform_device(data->devid, data->id,
- res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
+ res, ARRAY_SIZE(res), NULL, 0);
}
diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c
index 1da5f07952ac..2db4475b7f85 100644
--- a/arch/arm/mach-imx/mach-mx27_3ds.c
+++ b/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -303,18 +303,34 @@ static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
};
/* SPI */
-static int spi1_chipselect[] = {SPI1_SS0};
-
-static const struct spi_imx_master spi1_pdata __initconst = {
- .chipselect = spi1_chipselect,
- .num_chipselect = ARRAY_SIZE(spi1_chipselect),
+static struct gpiod_lookup_table mx27_spi1_gpiod_table = {
+ .dev_id = "imx27-cspi.0", /* Actual device name for spi1 */
+ .table = {
+ /*
+ * The i.MX27 has the i.MX21 GPIO controller, the SPI1 CS GPIO
+ * SPI1_SS0 is numbered IMX_GPIO_NR(4, 28).
+ *
+ * This is in "bank 4" which is subtracted by one in the macro
+ * so this is actually bank 3 on "imx21-gpio.3".
+ */
+ GPIO_LOOKUP_IDX("imx21-gpio.3", 28, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
};
-static int spi2_chipselect[] = {SPI2_SS0};
-
-static const struct spi_imx_master spi2_pdata __initconst = {
- .chipselect = spi2_chipselect,
- .num_chipselect = ARRAY_SIZE(spi2_chipselect),
+static struct gpiod_lookup_table mx27_spi2_gpiod_table = {
+ .dev_id = "imx27-cspi.1", /* Actual device name for spi2 */
+ .table = {
+ /*
+ * The i.MX27 has the i.MX21 GPIO controller, the SPI2 CS GPIO
+ * SPI2_SS0 is numbered IMX_GPIO_NR(4, 21).
+ *
+ * This is in "bank 4" which is subtracted by one in the macro
+ * so this is actually bank 3 on "imx21-gpio.3".
+ */
+ GPIO_LOOKUP_IDX("imx21-gpio.3", 21, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
};
static struct imx_fb_videomode mx27_3ds_modes[] = {
@@ -397,8 +413,8 @@ static void __init mx27pdk_init(void)
imx27_add_imx_keypad(&mx27_3ds_keymap_data);
imx27_add_imx2_wdt();
- imx27_add_spi_imx1(&spi2_pdata);
- imx27_add_spi_imx0(&spi1_pdata);
+ imx27_add_spi_imx1(&mx27_spi2_gpiod_table);
+ imx27_add_spi_imx0(&mx27_spi1_gpiod_table);
imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
imx27_add_imx_fb(&mx27_3ds_fb_data);
diff --git a/arch/arm/mach-imx/mach-mx31_3ds.c b/arch/arm/mach-imx/mach-mx31_3ds.c
index e81386190479..23e63d3b4c6a 100644
--- a/arch/arm/mach-imx/mach-mx31_3ds.c
+++ b/arch/arm/mach-imx/mach-mx31_3ds.c
@@ -378,15 +378,6 @@ static struct imx_ssi_platform_data mx31_3ds_ssi_pdata = {
.flags = IMX_SSI_DMA | IMX_SSI_NET,
};
-/* SPI */
-static const struct spi_imx_master spi0_pdata __initconst = {
- .num_chipselect = 3,
-};
-
-static const struct spi_imx_master spi1_pdata __initconst = {
- .num_chipselect = 3,
-};
-
static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
{
.modalias = "mc13783",
@@ -561,14 +552,14 @@ static void __init mx31_3ds_init(void)
imx31_add_imx_uart0(&uart_pdata);
imx31_add_mxc_nand(&mx31_3ds_nand_board_info);
- imx31_add_spi_imx1(&spi1_pdata);
+ imx31_add_spi_imx1(NULL);
imx31_add_imx_keypad(&mx31_3ds_keymap_data);
imx31_add_imx2_wdt();
imx31_add_imx_i2c0(&mx31_3ds_i2c0_data);
- imx31_add_spi_imx0(&spi0_pdata);
+ imx31_add_spi_imx0(NULL);
imx31_add_ipu_core();
imx31_add_mx3_sdc_fb(&mx3fb_pdata);
diff --git a/arch/arm/mach-imx/mach-mx31lilly.c b/arch/arm/mach-imx/mach-mx31lilly.c
index 8f725248299e..4b955ccc92cd 100644
--- a/arch/arm/mach-imx/mach-mx31lilly.c
+++ b/arch/arm/mach-imx/mach-mx31lilly.c
@@ -215,16 +215,6 @@ static void __init lilly1131_usb_init(void)
imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
}
-/* SPI */
-
-static const struct spi_imx_master spi0_pdata __initconst = {
- .num_chipselect = 3,
-};
-
-static const struct spi_imx_master spi1_pdata __initconst = {
- .num_chipselect = 3,
-};
-
static struct mc13xxx_platform_data mc13783_pdata __initdata = {
.flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
};
@@ -281,8 +271,8 @@ static void __init mx31lilly_board_init(void)
mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS1__SS1, "SPI2_SS1");
mxc_iomux_alloc_pin(MX31_PIN_CSPI2_SS2__SS2, "SPI2_SS2");
- imx31_add_spi_imx0(&spi0_pdata);
- imx31_add_spi_imx1(&spi1_pdata);
+ imx31_add_spi_imx0(NULL);
+ imx31_add_spi_imx1(NULL);
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
}
diff --git a/arch/arm/mach-imx/mach-mx31lite.c b/arch/arm/mach-imx/mach-mx31lite.c
index c0055f57c02d..aaccf52f7ac1 100644
--- a/arch/arm/mach-imx/mach-mx31lite.c
+++ b/arch/arm/mach-imx/mach-mx31lite.c
@@ -73,11 +73,6 @@ static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
-/* SPI */
-static const struct spi_imx_master spi0_pdata __initconst = {
- .num_chipselect = 3,
-};
-
static const struct mxc_nand_platform_data
mx31lite_nand_board_info __initconst = {
.width = 1,
@@ -111,16 +106,6 @@ static struct platform_device smsc911x_device = {
},
};
-/*
- * SPI
- *
- * The MC13783 is the only hard-wired SPI device on the module.
- */
-
-static const struct spi_imx_master spi1_pdata __initconst = {
- .num_chipselect = 1,
-};
-
static struct mc13xxx_platform_data mc13783_pdata __initdata = {
.flags = MC13XXX_USE_RTC,
};
@@ -246,13 +231,13 @@ static void __init mx31lite_init(void)
"mx31lite");
imx31_add_imx_uart0(&uart_pdata);
- imx31_add_spi_imx0(&spi0_pdata);
+ imx31_add_spi_imx0(NULL);
/* NOR and NAND flash */
platform_device_register(&physmap_flash_device);
imx31_add_mxc_nand(&mx31lite_nand_board_info);
- imx31_add_spi_imx1(&spi1_pdata);
+ imx31_add_spi_imx1(NULL);
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
}
diff --git a/arch/arm/mach-imx/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c
index 36f08f45b0ca..96845a4eaf57 100644
--- a/arch/arm/mach-imx/mach-mx31moboard.c
+++ b/arch/arm/mach-imx/mach-mx31moboard.c
@@ -143,10 +143,6 @@ static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
.bitrate = 100000,
};
-static const struct spi_imx_master moboard_spi1_pdata __initconst = {
- .num_chipselect = 3,
-};
-
static struct regulator_consumer_supply sdhc_consumers[] = {
{
.dev_name = "imx31-mmc.0",
@@ -287,10 +283,6 @@ static struct spi_board_info moboard_spi_board_info[] __initdata = {
},
};
-static const struct spi_imx_master moboard_spi2_pdata __initconst = {
- .num_chipselect = 2,
-};
-
#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
@@ -514,8 +506,8 @@ static void __init mx31moboard_init(void)
imx31_add_imx_i2c0(&moboard_i2c0_data);
imx31_add_imx_i2c1(&moboard_i2c1_data);
- imx31_add_spi_imx1(&moboard_spi1_pdata);
- imx31_add_spi_imx2(&moboard_spi2_pdata);
+ imx31_add_spi_imx1(NULL);
+ imx31_add_spi_imx2(NULL);
mx31moboard_init_cam();
diff --git a/arch/arm/mach-imx/mach-pca100.c b/arch/arm/mach-imx/mach-pca100.c
index 2e28e1b5cddf..27a3678e0658 100644
--- a/arch/arm/mach-imx/mach-pca100.c
+++ b/arch/arm/mach-imx/mach-pca100.c
@@ -14,6 +14,7 @@
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
@@ -188,11 +189,19 @@ static struct spi_board_info pca100_spi_board_info[] __initdata = {
},
};
-static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
-
-static const struct spi_imx_master pca100_spi0_data __initconst = {
- .chipselect = pca100_spi_cs,
- .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
+static struct gpiod_lookup_table pca100_spi0_gpiod_table = {
+ .dev_id = "imx27-cspi.0", /* Actual device name for spi0 */
+ .table = {
+ /*
+ * The i.MX27 has the i.MX21 GPIO controller, port D is
+ * bank 3 and thus named "imx21-gpio.3".
+ * SPI1_SS0 is GPIO_PORTD + 28
+ * SPI1_SS1 is GPIO_PORTD + 27
+ */
+ GPIO_LOOKUP_IDX("imx21-gpio.3", 28, "cs", 0, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("imx21-gpio.3", 27, "cs", 1, GPIO_ACTIVE_LOW),
+ { },
+ },
};
static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
@@ -362,7 +371,7 @@ static void __init pca100_init(void)
mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
spi_register_board_info(pca100_spi_board_info,
ARRAY_SIZE(pca100_spi_board_info));
- imx27_add_spi_imx0(&pca100_spi0_data);
+ imx27_add_spi_imx0(&pca100_spi0_gpiod_table);
imx27_add_imx_fb(&pca100_fb_data);
diff --git a/arch/arm/mach-imx/mach-pcm037_eet.c b/arch/arm/mach-imx/mach-pcm037_eet.c
index 51f5142920cf..8b0e03a595c1 100644
--- a/arch/arm/mach-imx/mach-pcm037_eet.c
+++ b/arch/arm/mach-imx/mach-pcm037_eet.c
@@ -52,11 +52,6 @@ static struct spi_board_info pcm037_spi_dev[] = {
},
};
-/* Platform Data for MXC CSPI */
-static const struct spi_imx_master pcm037_spi1_pdata __initconst = {
- .num_chipselect = 2,
-};
-
/* GPIO-keys input device */
static struct gpio_keys_button pcm037_gpio_keys[] = {
{
@@ -163,7 +158,7 @@ int __init pcm037_eet_init_devices(void)
/* SPI */
spi_register_board_info(pcm037_spi_dev, ARRAY_SIZE(pcm037_spi_dev));
- imx31_add_spi_imx0(&pcm037_spi1_pdata);
+ imx31_add_spi_imx0(NULL);
imx_add_gpio_keys(&pcm037_gpio_keys_platform_data);
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index 1552b28b9515..38b44446c947 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -11,7 +11,6 @@
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -19,11 +18,9 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
-#include <linux/of_gpio.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/platform_data/dma-imx.h>
-#include <linux/platform_data/spi-imx.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
@@ -224,20 +221,6 @@ static int lpspi_unprepare_xfer_hardware(struct spi_controller *controller)
return 0;
}
-static int fsl_lpspi_prepare_message(struct spi_controller *controller,
- struct spi_message *msg)
-{
- struct fsl_lpspi_data *fsl_lpspi =
- spi_controller_get_devdata(controller);
- struct spi_device *spi = msg->spi;
- int gpio = fsl_lpspi->chipselect[spi->chip_select];
-
- if (gpio_is_valid(gpio))
- gpio_direction_output(gpio, spi->mode & SPI_CS_HIGH ? 0 : 1);
-
- return 0;
-}
-
static void fsl_lpspi_write_tx_fifo(struct fsl_lpspi_data *fsl_lpspi)
{
u8 txfifo_cnt;
@@ -831,13 +814,10 @@ static int fsl_lpspi_init_rpm(struct fsl_lpspi_data *fsl_lpspi)
static int fsl_lpspi_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
struct fsl_lpspi_data *fsl_lpspi;
struct spi_controller *controller;
- struct spi_imx_master *lpspi_platform_info =
- dev_get_platdata(&pdev->dev);
struct resource *res;
- int i, ret, irq;
+ int ret, irq;
u32 temp;
bool is_slave;
@@ -867,6 +847,8 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
controller->dev.of_node = pdev->dev.of_node;
controller->bus_num = pdev->id;
controller->slave_abort = fsl_lpspi_slave_abort;
+ if (!fsl_lpspi->is_slave)
+ controller->use_gpio_descriptors = true;
ret = devm_spi_register_controller(&pdev->dev, controller);
if (ret < 0) {
@@ -874,29 +856,6 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
goto out_controller_put;
}
- if (!fsl_lpspi->is_slave) {
- for (i = 0; i < controller->num_chipselect; i++) {
- int cs_gpio = of_get_named_gpio(np, "cs-gpios", i);
-
- if (!gpio_is_valid(cs_gpio) && lpspi_platform_info)
- cs_gpio = lpspi_platform_info->chipselect[i];
-
- fsl_lpspi->chipselect[i] = cs_gpio;
- if (!gpio_is_valid(cs_gpio))
- continue;
-
- ret = devm_gpio_request(&pdev->dev,
- fsl_lpspi->chipselect[i],
- DRIVER_NAME);
- if (ret) {
- dev_err(&pdev->dev, "can't get cs gpios\n");
- goto out_controller_put;
- }
- }
- controller->cs_gpios = fsl_lpspi->chipselect;
- controller->prepare_message = fsl_lpspi_prepare_message;
- }
-
init_completion(&fsl_lpspi->xfer_done);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 2b8d339f1936..fdc25f549378 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -8,7 +8,6 @@
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -21,10 +20,9 @@
#include <linux/types.h>
#include <linux/of.h>
#include <linux/of_device.h>
-#include <linux/of_gpio.h>
+#include <linux/property.h>
#include <linux/platform_data/dma-imx.h>
-#include <linux/platform_data/spi-imx.h>
#define DRIVER_NAME "spi_imx"
@@ -723,7 +721,7 @@ static int mx31_prepare_transfer(struct spi_imx_data *spi_imx,
reg |= MX31_CSPICTRL_POL;
if (spi->mode & SPI_CS_HIGH)
reg |= MX31_CSPICTRL_SSPOL;
- if (!gpio_is_valid(spi->cs_gpio))
+ if (!spi->cs_gpiod)
reg |= (spi->chip_select) <<
(is_imx35_cspi(spi_imx) ? MX35_CSPICTRL_CS_SHIFT :
MX31_CSPICTRL_CS_SHIFT);
@@ -824,7 +822,7 @@ static int mx21_prepare_transfer(struct spi_imx_data *spi_imx,
reg |= MX21_CSPICTRL_POL;
if (spi->mode & SPI_CS_HIGH)
reg |= MX21_CSPICTRL_SSPOL;
- if (!gpio_is_valid(spi->cs_gpio))
+ if (!spi->cs_gpiod)
reg |= spi->chip_select << MX21_CSPICTRL_CS_SHIFT;
writel(reg, spi_imx->base + MXC_CSPICTRL);
@@ -1056,20 +1054,6 @@ static const struct of_device_id spi_imx_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, spi_imx_dt_ids);
-static void spi_imx_chipselect(struct spi_device *spi, int is_active)
-{
- int active = is_active != BITBANG_CS_INACTIVE;
- int dev_is_lowactive = !(spi->mode & SPI_CS_HIGH);
-
- if (spi->mode & SPI_NO_CS)
- return;
-
- if (!gpio_is_valid(spi->cs_gpio))
- return;
-
- gpio_set_value(spi->cs_gpio, dev_is_lowactive ^ active);
-}
-
static void spi_imx_set_burst_len(struct spi_imx_data *spi_imx, int n_bits)
{
u32 ctrl;
@@ -1533,15 +1517,6 @@ static int spi_imx_setup(struct spi_device *spi)
dev_dbg(&spi->dev, "%s: mode %d, %u bpw, %d hz\n", __func__,
spi->mode, spi->bits_per_word, spi->max_speed_hz);
- if (spi->mode & SPI_NO_CS)
- return 0;
-
- if (gpio_is_valid(spi->cs_gpio))
- gpio_direction_output(spi->cs_gpio,
- spi->mode & SPI_CS_HIGH ? 0 : 1);
-
- spi_imx_chipselect(spi, BITBANG_CS_INACTIVE);
-
return 0;
}
@@ -1599,20 +1574,14 @@ static int spi_imx_probe(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *of_id =
of_match_device(spi_imx_dt_ids, &pdev->dev);
- struct spi_imx_master *mxc_platform_info =
- dev_get_platdata(&pdev->dev);
struct spi_master *master;
struct spi_imx_data *spi_imx;
struct resource *res;
- int i, ret, irq, spi_drctl;
+ int ret, irq, spi_drctl;
const struct spi_imx_devtype_data *devtype_data = of_id ? of_id->data :
(struct spi_imx_devtype_data *)pdev->id_entry->driver_data;
bool slave_mode;
-
- if (!np && !mxc_platform_info) {
- dev_err(&pdev->dev, "can't get the platform data\n");
- return -EINVAL;
- }
+ u32 val;
slave_mode = devtype_data->has_slavemode &&
of_property_read_bool(np, "spi-slave");
@@ -1635,6 +1604,7 @@ static int spi_imx_probe(struct platform_device *pdev)
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
master->bus_num = np ? -1 : pdev->id;
+ master->use_gpio_descriptors = true;
spi_imx = spi_master_get_devdata(master);
spi_imx->bitbang.master = master;
@@ -1643,28 +1613,17 @@ static int spi_imx_probe(struct platform_device *pdev)
spi_imx->devtype_data = devtype_data;
- /* Get number of chip selects, either platform data or OF */
- if (mxc_platform_info) {
- master->num_chipselect = mxc_platform_info->num_chipselect;
- if (mxc_platform_info->chipselect) {
- master->cs_gpios = devm_kcalloc(&master->dev,
- master->num_chipselect, sizeof(int),
- GFP_KERNEL);
- if (!master->cs_gpios)
- return -ENOMEM;
-
- for (i = 0; i < master->num_chipselect; i++)
- master->cs_gpios[i] = mxc_platform_info->chipselect[i];
- }
- } else {
- u32 num_cs;
-
- if (!of_property_read_u32(np, "num-cs", &num_cs))
- master->num_chipselect = num_cs;
- /* If not preset, default value of 1 is used */
- }
+ /*
+ * Get number of chip selects from device properties. This can be
+ * coming from device tree or boardfiles, if it is not defined,
+ * a default value of 3 chip selects will be used, as all the legacy
+ * board files have <= 3 chip selects.
+ */
+ if (!device_property_read_u32(&pdev->dev, "num-cs", &val))
+ master->num_chipselect = val;
+ else
+ master->num_chipselect = 3;
- spi_imx->bitbang.chipselect = spi_imx_chipselect;
spi_imx->bitbang.setup_transfer = spi_imx_setupxfer;
spi_imx->bitbang.txrx_bufs = spi_imx_transfer;
spi_imx->bitbang.master->setup = spi_imx_setup;
@@ -1749,31 +1708,12 @@ static int spi_imx_probe(struct platform_device *pdev)
goto out_clk_put;
}
- /* Request GPIO CS lines, if any */
- if (!spi_imx->slave_mode && master->cs_gpios) {
- for (i = 0; i < master->num_chipselect; i++) {
- if (!gpio_is_valid(master->cs_gpios[i]))
- continue;
-
- ret = devm_gpio_request(&pdev->dev,
- master->cs_gpios[i],
- DRIVER_NAME);
- if (ret) {
- dev_err(&pdev->dev, "Can't get CS GPIO %i\n",
- master->cs_gpios[i]);
- goto out_spi_bitbang;
- }
- }
- }
-
dev_info(&pdev->dev, "probed\n");
clk_disable(spi_imx->clk_ipg);
clk_disable(spi_imx->clk_per);
return ret;
-out_spi_bitbang:
- spi_bitbang_stop(&spi_imx->bitbang);
out_clk_put:
clk_disable_unprepare(spi_imx->clk_ipg);
out_put_per:
diff --git a/include/linux/platform_data/spi-imx.h b/include/linux/platform_data/spi-imx.h
deleted file mode 100644
index 328f670d10bd..000000000000
--- a/include/linux/platform_data/spi-imx.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-
-#ifndef __MACH_SPI_H_
-#define __MACH_SPI_H_
-
-/*
- * struct spi_imx_master - device.platform_data for SPI controller devices.
- * @chipselect: Array of chipselects for this master or NULL. Numbers >= 0
- * mean GPIO pins, -ENOENT means internal CSPI chipselect
- * matching the position in the array. E.g., if chipselect[1] =
- * -ENOENT then a SPI slave using chip select 1 will use the
- * native SS1 line of the CSPI. Omitting the array will use
- * all native chip selects.
-
- * Normally you want to use gpio based chip selects as the CSPI
- * module tries to be intelligent about when to assert the
- * chipselect: The CSPI module deasserts the chipselect once it
- * runs out of input data. The other problem is that it is not
- * possible to mix between high active and low active chipselects
- * on one single bus using the internal chipselects.
- * Unfortunately, on some SoCs, Freescale decided to put some
- * chipselects on dedicated pins which are not usable as gpios,
- * so we have to support the internal chipselects.
- *
- * @num_chipselect: If @chipselect is specified, ARRAY_SIZE(chipselect),
- * otherwise the number of native chip selects.
- */
-struct spi_imx_master {
- int *chipselect;
- int num_chipselect;
-};
-
-#endif /* __MACH_SPI_H_*/
generated by cgit (git 2.34.1) at 2024-06-10 21:10:04 +0000