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
.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 = {
.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 = {
.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))
.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);
.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",
.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",
.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));
.tx_threshold = 1,
.rx_threshold = 2,
.timeout = 64,
- .gpio_cs = GPIO88_HX4700_TSC2046_CS,
};
static struct spi_board_info tsc2046_board_info[] __initdata = {
.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
*/
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));
#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>
.rx_threshold = 128,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = ICONTROL_MCP251x_nCS1
};
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 = {
.rx_threshold = 128,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = ICONTROL_MCP251x_nCS3
};
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[] = {
}
};
+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,
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));
}
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 = {
},
};
+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));
}
.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 = {
.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",
} 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));
.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,
.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));
}
.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);
.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",
.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",
.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,
},
};
.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())
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));
}
.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 = {
.rx_threshold = 8,
.dma_burst_size = 8,
.timeout = 235,
- .gpio_cs = 24,
};
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 = {
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);
.rx_threshold = 8,
.tx_threshold = 8,
.timeout = 1000,
- .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
};
static struct libertas_spi_platform_data z2_lbs_pdata = {
.rx_threshold = 1,
.tx_threshold = 1,
.timeout = 64,
- .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
};
static struct gpiod_lookup_table lms283_gpio_table = {
.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);
#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>
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;
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:
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);
}
u8 rx_threshold;
u8 dma_burst_size;
u32 timeout;
- int gpio_cs;
};
#if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP)
projects / kernel.git / commitdiff