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-rw-r--r--Documentation/spi/pxa2xx.rst3
-rw-r--r--arch/arm/mach-pxa/corgi.c26
-rw-r--r--arch/arm/mach-pxa/hx4700.c10
-rw-r--r--arch/arm/mach-pxa/icontrol.c26
-rw-r--r--arch/arm/mach-pxa/littleton.c10
-rw-r--r--arch/arm/mach-pxa/magician.c12
-rw-r--r--arch/arm/mach-pxa/poodle.c14
-rw-r--r--arch/arm/mach-pxa/spitz.c26
-rw-r--r--arch/arm/mach-pxa/stargate2.c20
-rw-r--r--arch/arm/mach-pxa/z2.c20
-rw-r--r--drivers/spi/spi-pxa2xx.c63
-rw-r--r--include/linux/spi/pxa2xx_spi.h1
12 files changed, 117 insertions, 114 deletions
diff --git a/Documentation/spi/pxa2xx.rst b/Documentation/spi/pxa2xx.rst
index 6347580826be..716f65d87d04 100644
--- a/Documentation/spi/pxa2xx.rst
+++ b/Documentation/spi/pxa2xx.rst
@@ -101,7 +101,6 @@ device. All fields are optional.
u8 rx_threshold;
u8 dma_burst_size;
u32 timeout;
- int gpio_cs;
};
The "pxa2xx_spi_chip.tx_threshold" and "pxa2xx_spi_chip.rx_threshold" fields are
@@ -146,7 +145,6 @@ field. Below is a sample configuration using the PXA255 NSSP.
.rx_threshold = 8, /* SSP hardward FIFO threshold */
.dma_burst_size = 8, /* Byte wide transfers used so 8 byte bursts */
.timeout = 235, /* See Intel documentation */
- .gpio_cs = 2, /* Use external chip select */
};
static struct pxa2xx_spi_chip cs8405a_chip_info = {
@@ -154,7 +152,6 @@ field. Below is a sample configuration using the PXA255 NSSP.
.rx_threshold = 8, /* SSP hardward FIFO threshold */
.dma_burst_size = 8, /* Byte wide transfers used so 8 byte bursts */
.timeout = 235, /* See Intel documentation */
- .gpio_cs = 3, /* Use external chip select */
};
static struct spi_board_info streetracer_spi_board_info[] __initdata = {
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 593c7f793da5..44659fbc37ba 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -530,6 +530,16 @@ static struct pxa2xx_spi_controller corgi_spi_info = {
.num_chipselect = 3,
};
+static struct gpiod_lookup_table corgi_spi_gpio_table = {
+ .dev_id = "pxa2xx-spi.1",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", CORGI_GPIO_ADS7846_CS, "cs", 0, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-pxa", CORGI_GPIO_LCDCON_CS, "cs", 1, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-pxa", CORGI_GPIO_MAX1111_CS, "cs", 2, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
static void corgi_wait_for_hsync(void)
{
while (gpio_get_value(CORGI_GPIO_HSYNC))
@@ -548,10 +558,6 @@ static struct ads7846_platform_data corgi_ads7846_info = {
.wait_for_sync = corgi_wait_for_hsync,
};
-static struct pxa2xx_spi_chip corgi_ads7846_chip = {
- .gpio_cs = CORGI_GPIO_ADS7846_CS,
-};
-
static void corgi_bl_kick_battery(void)
{
void (*kick_batt)(void);
@@ -580,14 +586,6 @@ static struct corgi_lcd_platform_data corgi_lcdcon_info = {
.kick_battery = corgi_bl_kick_battery,
};
-static struct pxa2xx_spi_chip corgi_lcdcon_chip = {
- .gpio_cs = CORGI_GPIO_LCDCON_CS,
-};
-
-static struct pxa2xx_spi_chip corgi_max1111_chip = {
- .gpio_cs = CORGI_GPIO_MAX1111_CS,
-};
-
static struct spi_board_info corgi_spi_devices[] = {
{
.modalias = "ads7846",
@@ -595,7 +593,6 @@ static struct spi_board_info corgi_spi_devices[] = {
.bus_num = 1,
.chip_select = 0,
.platform_data = &corgi_ads7846_info,
- .controller_data= &corgi_ads7846_chip,
.irq = PXA_GPIO_TO_IRQ(CORGI_GPIO_TP_INT),
}, {
.modalias = "corgi-lcd",
@@ -603,18 +600,17 @@ static struct spi_board_info corgi_spi_devices[] = {
.bus_num = 1,
.chip_select = 1,
.platform_data = &corgi_lcdcon_info,
- .controller_data= &corgi_lcdcon_chip,
}, {
.modalias = "max1111",
.max_speed_hz = 450000,
.bus_num = 1,
.chip_select = 2,
- .controller_data= &corgi_max1111_chip,
},
};
static void __init corgi_init_spi(void)
{
+ gpiod_add_lookup_table(&corgi_spi_gpio_table);
pxa2xx_set_spi_info(1, &corgi_spi_info);
gpiod_add_lookup_table(&corgi_lcdcon_gpio_table);
spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices));
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));
diff --git a/arch/arm/mach-pxa/icontrol.c b/arch/arm/mach-pxa/icontrol.c
index 04a12523cdee..753fe166ab68 100644
--- a/arch/arm/mach-pxa/icontrol.c
+++ b/arch/arm/mach-pxa/icontrol.c
@@ -13,7 +13,7 @@
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/property.h>
-#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -42,7 +42,6 @@ static struct pxa2xx_spi_chip mcp251x_chip_info1 = {
.rx_threshold = 128,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = ICONTROL_MCP251x_nCS1
};
static struct pxa2xx_spi_chip mcp251x_chip_info2 = {
@@ -50,7 +49,6 @@ static struct pxa2xx_spi_chip mcp251x_chip_info2 = {
.rx_threshold = 128,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = ICONTROL_MCP251x_nCS2
};
static struct pxa2xx_spi_chip mcp251x_chip_info3 = {
@@ -58,7 +56,6 @@ static struct pxa2xx_spi_chip mcp251x_chip_info3 = {
.rx_threshold = 128,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = ICONTROL_MCP251x_nCS3
};
static struct pxa2xx_spi_chip mcp251x_chip_info4 = {
@@ -66,7 +63,6 @@ static struct pxa2xx_spi_chip mcp251x_chip_info4 = {
.rx_threshold = 128,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = ICONTROL_MCP251x_nCS4
};
static const struct property_entry mcp251x_properties[] = {
@@ -143,6 +139,24 @@ struct platform_device pxa_spi_ssp4 = {
}
};
+static struct gpiod_lookup_table pxa_ssp3_gpio_table = {
+ .dev_id = "pxa2xx-spi.3",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS1, "cs", 0, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS2, "cs", 1, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
+static struct gpiod_lookup_table pxa_ssp4_gpio_table = {
+ .dev_id = "pxa2xx-spi.4",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS3, "cs", 0, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-pxa", ICONTROL_MCP251x_nCS4, "cs", 1, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
static struct platform_device *icontrol_spi_devices[] __initdata = {
&pxa_spi_ssp3,
&pxa_spi_ssp4,
@@ -175,6 +189,8 @@ static mfp_cfg_t mfp_can_cfg[] __initdata = {
static void __init icontrol_can_init(void)
{
pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_can_cfg));
+ gpiod_add_lookup_table(&pxa_ssp3_gpio_table);
+ gpiod_add_lookup_table(&pxa_ssp4_gpio_table);
platform_add_devices(ARRAY_AND_SIZE(icontrol_spi_devices));
spi_register_board_info(ARRAY_AND_SIZE(mcp251x_board_info));
}
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index 793f61375ee8..73f5953b3bb6 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -195,7 +195,6 @@ static struct pxa2xx_spi_controller littleton_spi_info = {
static struct pxa2xx_spi_chip littleton_tdo24m_chip = {
.rx_threshold = 1,
.tx_threshold = 1,
- .gpio_cs = LITTLETON_GPIO_LCD_CS,
};
static struct spi_board_info littleton_spi_devices[] __initdata = {
@@ -208,8 +207,17 @@ static struct spi_board_info littleton_spi_devices[] __initdata = {
},
};
+static struct gpiod_lookup_table littleton_spi_gpio_table = {
+ .dev_id = "pxa2xx-spi.2",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", LITTLETON_GPIO_LCD_CS, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
static void __init littleton_init_spi(void)
{
+ gpiod_add_lookup_table(&littleton_spi_gpio_table);
pxa2xx_set_spi_info(2, &littleton_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(littleton_spi_devices));
}
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index cd9fa465b9b2..200fd35168e0 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -938,8 +938,6 @@ struct pxa2xx_spi_chip tsc2046_chip_info = {
.tx_threshold = 1,
.rx_threshold = 2,
.timeout = 64,
- /* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
- .gpio_cs = GPIO14_MAGICIAN_TSC2046_CS,
};
static struct pxa2xx_spi_controller magician_spi_info = {
@@ -947,6 +945,15 @@ static struct pxa2xx_spi_controller magician_spi_info = {
.enable_dma = 1,
};
+static struct gpiod_lookup_table magician_spi_gpio_table = {
+ .dev_id = "pxa2xx-spi.2",
+ .table = {
+ /* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
+ GPIO_LOOKUP_IDX("gpio-pxa", GPIO14_MAGICIAN_TSC2046_CS, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
static struct spi_board_info ads7846_spi_board_info[] __initdata = {
{
.modalias = "ads7846",
@@ -1031,6 +1038,7 @@ static void __init magician_init(void)
} else
pr_err("LCD detection: CPLD mapping failed\n");
+ gpiod_add_lookup_table(&magician_spi_gpio_table);
pxa2xx_set_spi_info(2, &magician_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 3a4ecc3c8f8b..58cfa434afde 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -197,6 +197,14 @@ static struct pxa2xx_spi_controller poodle_spi_info = {
.num_chipselect = 1,
};
+static struct gpiod_lookup_table poodle_spi_gpio_table = {
+ .dev_id = "pxa2xx-spi.1",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", POODLE_GPIO_TP_CS, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
static struct ads7846_platform_data poodle_ads7846_info = {
.model = 7846,
.vref_delay_usecs = 100,
@@ -205,23 +213,19 @@ static struct ads7846_platform_data poodle_ads7846_info = {
.gpio_pendown = POODLE_GPIO_TP_INT,
};
-static struct pxa2xx_spi_chip poodle_ads7846_chip = {
- .gpio_cs = POODLE_GPIO_TP_CS,
-};
-
static struct spi_board_info poodle_spi_devices[] = {
{
.modalias = "ads7846",
.max_speed_hz = 10000,
.bus_num = 1,
.platform_data = &poodle_ads7846_info,
- .controller_data= &poodle_ads7846_chip,
.irq = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
},
};
static void __init poodle_init_spi(void)
{
+ gpiod_add_lookup_table(&poodle_spi_gpio_table);
pxa2xx_set_spi_info(1, &poodle_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
}
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 371008e9bb02..a648e7094e84 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -510,10 +510,6 @@ static struct ads7846_platform_data spitz_ads7846_info = {
.wait_for_sync = spitz_ads7846_wait_for_hsync,
};
-static struct pxa2xx_spi_chip spitz_ads7846_chip = {
- .gpio_cs = SPITZ_GPIO_ADS7846_CS,
-};
-
static void spitz_bl_kick_battery(void)
{
void (*kick_batt)(void);
@@ -555,14 +551,6 @@ static struct corgi_lcd_platform_data spitz_lcdcon_info = {
.kick_battery = spitz_bl_kick_battery,
};
-static struct pxa2xx_spi_chip spitz_lcdcon_chip = {
- .gpio_cs = SPITZ_GPIO_LCDCON_CS,
-};
-
-static struct pxa2xx_spi_chip spitz_max1111_chip = {
- .gpio_cs = SPITZ_GPIO_MAX1111_CS,
-};
-
static struct spi_board_info spitz_spi_devices[] = {
{
.modalias = "ads7846",
@@ -570,7 +558,6 @@ static struct spi_board_info spitz_spi_devices[] = {
.bus_num = 2,
.chip_select = 0,
.platform_data = &spitz_ads7846_info,
- .controller_data = &spitz_ads7846_chip,
.irq = PXA_GPIO_TO_IRQ(SPITZ_GPIO_TP_INT),
}, {
.modalias = "corgi-lcd",
@@ -578,13 +565,11 @@ static struct spi_board_info spitz_spi_devices[] = {
.bus_num = 2,
.chip_select = 1,
.platform_data = &spitz_lcdcon_info,
- .controller_data = &spitz_lcdcon_chip,
}, {
.modalias = "max1111",
.max_speed_hz = 450000,
.bus_num = 2,
.chip_select = 2,
- .controller_data = &spitz_max1111_chip,
},
};
@@ -592,6 +577,16 @@ static struct pxa2xx_spi_controller spitz_spi_info = {
.num_chipselect = 3,
};
+static struct gpiod_lookup_table spitz_spi_gpio_table = {
+ .dev_id = "pxa2xx-spi.2",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", SPITZ_GPIO_ADS7846_CS, "cs", 0, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-pxa", SPITZ_GPIO_LCDCON_CS, "cs", 1, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-pxa", SPITZ_GPIO_MAX1111_CS, "cs", 2, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
static void __init spitz_spi_init(void)
{
if (machine_is_akita())
@@ -599,6 +594,7 @@ static void __init spitz_spi_init(void)
else
gpiod_add_lookup_table(&spitz_lcdcon_gpio_table);
+ gpiod_add_lookup_table(&spitz_spi_gpio_table);
pxa2xx_set_spi_info(2, &spitz_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices));
}
diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
index 8ca02ec1d44c..b43e2f4536a5 100644
--- a/arch/arm/mach-pxa/stargate2.c
+++ b/arch/arm/mach-pxa/stargate2.c
@@ -346,6 +346,22 @@ static struct pxa2xx_spi_controller pxa_ssp_master_2_info = {
.num_chipselect = 1,
};
+static struct gpiod_lookup_table pxa_ssp1_gpio_table = {
+ .dev_id = "pxa2xx-spi.1",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", 24, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
+static struct gpiod_lookup_table pxa_ssp3_gpio_table = {
+ .dev_id = "pxa2xx-spi.3",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", 39, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
/* An upcoming kernel change will scrap SFRM usage so these
* drivers have been moved to use GPIOs */
static struct pxa2xx_spi_chip staccel_chip_info = {
@@ -353,7 +369,6 @@ static struct pxa2xx_spi_chip staccel_chip_info = {
.rx_threshold = 8,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = 24,
};
static struct pxa2xx_spi_chip cc2420_info = {
@@ -361,7 +376,6 @@ static struct pxa2xx_spi_chip cc2420_info = {
.rx_threshold = 8,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = 39,
};
static struct spi_board_info spi_board_info[] __initdata = {
@@ -410,6 +424,8 @@ static void __init imote2_stargate2_init(void)
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
+ gpiod_add_lookup_table(&pxa_ssp1_gpio_table);
+ gpiod_add_lookup_table(&pxa_ssp3_gpio_table);
pxa2xx_set_spi_info(1, &pxa_ssp_master_0_info);
pxa2xx_set_spi_info(2, &pxa_ssp_master_1_info);
pxa2xx_set_spi_info(3, &pxa_ssp_master_2_info);
diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index 8e74fbb0a96e..7eaeda269927 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -570,7 +570,6 @@ static struct pxa2xx_spi_chip z2_lbs_chip_info = {
.rx_threshold = 8,
.tx_threshold = 8,
.timeout = 1000,
- .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
};
static struct libertas_spi_platform_data z2_lbs_pdata = {
@@ -584,7 +583,6 @@ static struct pxa2xx_spi_chip lms283_chip_info = {
.rx_threshold = 1,
.tx_threshold = 1,
.timeout = 64,
- .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
};
static struct gpiod_lookup_table lms283_gpio_table = {
@@ -624,8 +622,26 @@ static struct pxa2xx_spi_controller pxa_ssp2_master_info = {
.num_chipselect = 1,
};
+static struct gpiod_lookup_table pxa_ssp1_gpio_table = {
+ .dev_id = "pxa2xx-spi.1",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", GPIO24_ZIPITZ2_WIFI_CS, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
+static struct gpiod_lookup_table pxa_ssp2_gpio_table = {
+ .dev_id = "pxa2xx-spi.2",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-pxa", GPIO88_ZIPITZ2_LCD_CS, "cs", 0, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
static void __init z2_spi_init(void)
{
+ gpiod_add_lookup_table(&pxa_ssp1_gpio_table);
+ gpiod_add_lookup_table(&pxa_ssp2_gpio_table);
pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
gpiod_add_lookup_table(&lms283_gpio_table);
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index e88f86274eeb..abb9f0ffd377 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -13,7 +13,6 @@
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/gpio/consumer.h>
-#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
@@ -1163,57 +1162,6 @@ static int pxa2xx_spi_unprepare_transfer(struct spi_controller *controller)
return 0;
}
-static void cleanup_cs(struct spi_device *spi)
-{
- if (!gpio_is_valid(spi->cs_gpio))
- return;
-
- gpio_free(spi->cs_gpio);
- spi->cs_gpio = -ENOENT;
-}
-
-static int setup_cs(struct spi_device *spi, struct chip_data *chip,
- struct pxa2xx_spi_chip *chip_info)
-{
- struct driver_data *drv_data = spi_controller_get_devdata(spi->controller);
-
- if (chip == NULL)
- return 0;
-
- if (chip_info == NULL)
- return 0;
-
- if (drv_data->ssp_type == CE4100_SSP)
- return 0;
-
- /*
- * NOTE: setup() can be called multiple times, possibly with
- * different chip_info, release previously requested GPIO.
- */
- cleanup_cs(spi);
-
- if (gpio_is_valid(chip_info->gpio_cs)) {
- int gpio = chip_info->gpio_cs;
- int err;
-
- err = gpio_request(gpio, "SPI_CS");
- if (err) {
- dev_err(&spi->dev, "failed to request chip select GPIO%d\n", gpio);
- return err;
- }
-
- err = gpio_direction_output(gpio, !(spi->mode & SPI_CS_HIGH));
- if (err) {
- gpio_free(gpio);
- return err;
- }
-
- spi->cs_gpio = gpio;
- }
-
- return 0;
-}
-
static int setup(struct spi_device *spi)
{
struct pxa2xx_spi_chip *chip_info;
@@ -1222,7 +1170,6 @@ static int setup(struct spi_device *spi)
struct driver_data *drv_data =
spi_controller_get_devdata(spi->controller);
uint tx_thres, tx_hi_thres, rx_thres;
- int err;
switch (drv_data->ssp_type) {
case QUARK_X1000_SSP:
@@ -1365,21 +1312,13 @@ static int setup(struct spi_device *spi)
spi_set_ctldata(spi, chip);
- if (drv_data->ssp_type == CE4100_SSP)
- return 0;
-
- err = setup_cs(spi, chip, chip_info);
- if (err)
- kfree(chip);
-
- return err;
+ return 0;
}
static void cleanup(struct spi_device *spi)
{
struct chip_data *chip = spi_get_ctldata(spi);
- cleanup_cs(spi);
kfree(chip);
}
diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h
index ca74dce36706..4658e7801b42 100644
--- a/include/linux/spi/pxa2xx_spi.h
+++ b/include/linux/spi/pxa2xx_spi.h
@@ -42,7 +42,6 @@ struct pxa2xx_spi_chip {
u8 rx_threshold;
u8 dma_burst_size;
u32 timeout;
- int gpio_cs;
};
#if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP)
generated by cgit (git 2.34.1) at 2024-05-28 18:00:55 +0000