diff options
Diffstat (limited to 'arch/arm/mach-omap1/board-osk.c')
| -rw-r--r-- | arch/arm/mach-omap1/board-osk.c | 412 |
1 files changed, 101 insertions, 311 deletions
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index 76684b7a4e87..7d5e6f9039d5 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -25,7 +25,8 @@ * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> +#include <linux/gpio/driver.h> #include <linux/gpio/machine.h> #include <linux/kernel.h> #include <linux/init.h> @@ -64,13 +65,12 @@ /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with * alternate pin configurations for hardware-controlled blinking. */ -#define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */) -# define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0) -# define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1) -# define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2) -# define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3) -# define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4) -# define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5) +#define OSK_TPS_GPIO_USB_PWR_EN 0 +#define OSK_TPS_GPIO_LED_D3 1 +#define OSK_TPS_GPIO_LAN_RESET 2 +#define OSK_TPS_GPIO_DSP_PWR_EN 3 +#define OSK_TPS_GPIO_LED_D9 4 +#define OSK_TPS_GPIO_LED_D2 5 static struct mtd_partition osk_partitions[] = { /* bootloader (U-Boot, etc) in first sector */ @@ -174,11 +174,20 @@ static const struct gpio_led tps_leds[] = { /* NOTE: D9 and D2 have hardware blink support. * Also, D9 requires non-battery power. */ - { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", - .default_trigger = "disk-activity", }, - { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, - { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, - .default_trigger = "heartbeat", }, + { .name = "d9", .default_trigger = "disk-activity", }, + { .name = "d2", }, + { .name = "d3", .default_trigger = "heartbeat", }, +}; + +static struct gpiod_lookup_table tps_leds_gpio_table = { + .dev_id = "leds-gpio", + .table = { + /* Use local offsets on TPS65010 */ + GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D9, NULL, 0, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D2, NULL, 1, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D3, NULL, 2, GPIO_ACTIVE_LOW), + { } + }, }; static struct gpio_led_platform_data tps_leds_data = { @@ -192,29 +201,34 @@ static struct platform_device osk5912_tps_leds = { .dev.platform_data = &tps_leds_data, }; -static int osk_tps_setup(struct i2c_client *client, void *context) +/* The board just hold these GPIOs hogged from setup to teardown */ +static struct gpio_desc *eth_reset; +static struct gpio_desc *vdd_dsp; + +static int osk_tps_setup(struct i2c_client *client, struct gpio_chip *gc) { + struct gpio_desc *d; if (!IS_BUILTIN(CONFIG_TPS65010)) return -ENOSYS; /* Set GPIO 1 HIGH to disable VBUS power supply; * OHCI driver powers it up/down as needed. */ - gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); - gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); + d = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en", + GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH); /* Free the GPIO again as the driver will request it */ - gpio_free(OSK_TPS_GPIO_USB_PWR_EN); + gpiochip_free_own_desc(d); /* Set GPIO 2 high so LED D3 is off by default */ tps65010_set_gpio_out_value(GPIO2, HIGH); /* Set GPIO 3 low to take ethernet out of reset */ - gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); - gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); + eth_reset = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_LAN_RESET, "smc_reset", + GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW); /* GPIO4 is VDD_DSP */ - gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); - gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); + vdd_dsp = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power", + GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH); /* REVISIT if DSP support isn't configured, power it off ... */ /* Let LED1 (D9) blink; leds-gpio may override it */ @@ -232,15 +246,22 @@ static int osk_tps_setup(struct i2c_client *client, void *context) /* register these three LEDs */ osk5912_tps_leds.dev.parent = &client->dev; + gpiod_add_lookup_table(&tps_leds_gpio_table); platform_device_register(&osk5912_tps_leds); return 0; } +static void osk_tps_teardown(struct i2c_client *client, struct gpio_chip *gc) +{ + gpiochip_free_own_desc(eth_reset); + gpiochip_free_own_desc(vdd_dsp); +} + static struct tps65010_board tps_board = { - .base = OSK_TPS_GPIO_BASE, .outmask = 0x0f, .setup = osk_tps_setup, + .teardown = osk_tps_teardown, }; static struct i2c_board_info __initdata osk_i2c_board_info[] = { @@ -263,11 +284,6 @@ static void __init osk_init_smc91x(void) { u32 l; - if ((gpio_request(0, "smc_irq")) < 0) { - printk("Error requesting gpio 0 for smc91x irq\n"); - return; - } - /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ l = omap_readl(EMIFS_CCS(1)); l |= 0x3; @@ -279,10 +295,6 @@ static void __init osk_init_cf(int seg) struct resource *res = &osk5912_cf_resources[1]; omap_cfg_reg(M7_1610_GPIO62); - if ((gpio_request(62, "cf_irq")) < 0) { - printk("Error requesting gpio 62 for CF irq\n"); - return; - } switch (seg) { /* NOTE: CS0 could be configured too ... */ @@ -308,18 +320,17 @@ static void __init osk_init_cf(int seg) seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg))); omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */ omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */ - - /* the CF I/O IRQ is really active-low */ - irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); } static struct gpiod_lookup_table osk_usb_gpio_table = { .dev_id = "ohci", .table = { /* Power GPIO on the I2C-attached TPS65010 */ - GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("tps65010", OSK_TPS_GPIO_USB_PWR_EN, "power", + GPIO_ACTIVE_HIGH), GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent", GPIO_ACTIVE_HIGH), + { } }, }; @@ -339,271 +350,34 @@ static struct omap_usb_config osk_usb_config __initdata = { .pins[0] = 2, }; -#ifdef CONFIG_OMAP_OSK_MISTRAL -static const struct omap_lcd_config osk_lcd_config __initconst = { - .ctrl_name = "internal", -}; -#endif - -#ifdef CONFIG_OMAP_OSK_MISTRAL - -#include <linux/input.h> -#include <linux/property.h> -#include <linux/spi/spi.h> -#include <linux/spi/ads7846.h> - -#include <linux/platform_data/keypad-omap.h> - -static const struct property_entry mistral_at24_properties[] = { - PROPERTY_ENTRY_U32("pagesize", 16), - { } -}; - -static const struct software_node mistral_at24_node = { - .properties = mistral_at24_properties, -}; - -static struct i2c_board_info __initdata mistral_i2c_board_info[] = { - { - /* NOTE: powered from LCD supply */ - I2C_BOARD_INFO("24c04", 0x50), - .swnode = &mistral_at24_node, - }, - /* TODO when driver support is ready: - * - optionally ov9640 camera sensor at 0x30 - */ -}; - -static const unsigned int osk_keymap[] = { - /* KEY(col, row, code) */ - KEY(0, 0, KEY_F1), /* SW4 */ - KEY(3, 0, KEY_UP), /* (sw2/up) */ - KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ - KEY(2, 1, KEY_LEFT), /* (sw2/left) */ - KEY(0, 2, KEY_SPACE), /* SW3 */ - KEY(1, 2, KEY_ESC), /* SW6 */ - KEY(2, 2, KEY_DOWN), /* (sw2/down) */ - KEY(2, 3, KEY_ENTER), /* (sw2/select) */ - KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ -}; - -static const struct matrix_keymap_data osk_keymap_data = { - .keymap = osk_keymap, - .keymap_size = ARRAY_SIZE(osk_keymap), -}; - -static struct omap_kp_platform_data osk_kp_data = { - .rows = 8, - .cols = 8, - .keymap_data = &osk_keymap_data, - .delay = 9, -}; - -static struct resource osk5912_kp_resources[] = { - [0] = { - .start = INT_KEYBOARD, - .end = INT_KEYBOARD, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device osk5912_kp_device = { - .name = "omap-keypad", - .id = -1, - .dev = { - .platform_data = &osk_kp_data, - }, - .num_resources = ARRAY_SIZE(osk5912_kp_resources), - .resource = osk5912_kp_resources, -}; - -static struct omap_backlight_config mistral_bl_data = { - .default_intensity = 0xa0, -}; - -static struct platform_device mistral_bl_device = { - .name = "omap-bl", - .id = -1, - .dev = { - .platform_data = &mistral_bl_data, - }, -}; - -static struct platform_device osk5912_lcd_device = { - .name = "lcd_osk", - .id = -1, -}; - -static const struct gpio_led mistral_gpio_led_pins[] = { - { - .name = "mistral:red", - .default_trigger = "heartbeat", - .gpio = 3, - }, - { - .name = "mistral:green", - .default_trigger = "cpu0", - .gpio = OMAP_MPUIO(4), - }, -}; - -static struct gpio_led_platform_data mistral_gpio_led_data = { - .leds = mistral_gpio_led_pins, - .num_leds = ARRAY_SIZE(mistral_gpio_led_pins), -}; +#define EMIFS_CS3_VAL (0x88013141) -static struct platform_device mistral_gpio_leds = { - .name = "leds-gpio", - .id = -1, - .dev = { - .platform_data = &mistral_gpio_led_data, +static struct gpiod_lookup_table osk_irq_gpio_table = { + .dev_id = NULL, + .table = { + /* GPIO used for SMC91x IRQ */ + GPIO_LOOKUP(OMAP_GPIO_LABEL, 0, "smc_irq", + GPIO_ACTIVE_HIGH), + /* GPIO used for CF IRQ */ + GPIO_LOOKUP("gpio-48-63", 14, "cf_irq", + GPIO_ACTIVE_HIGH), + /* GPIO used by the TPS65010 chip */ + GPIO_LOOKUP("mpuio", 1, "tps65010", + GPIO_ACTIVE_HIGH), + /* GPIOs used for serial wakeup IRQs */ + GPIO_LOOKUP_IDX("gpio-32-47", 5, "wakeup", 0, + GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio-16-31", 2, "wakeup", 1, + GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio-48-63", 1, "wakeup", 2, + GPIO_ACTIVE_HIGH), + { } }, }; -static struct platform_device *mistral_devices[] __initdata = { - &osk5912_kp_device, - &mistral_bl_device, - &osk5912_lcd_device, - &mistral_gpio_leds, -}; - -static int mistral_get_pendown_state(void) -{ - return !gpio_get_value(4); -} - -static const struct ads7846_platform_data mistral_ts_info = { - .model = 7846, - .vref_delay_usecs = 100, /* internal, no capacitor */ - .x_plate_ohms = 419, - .y_plate_ohms = 486, - .get_pendown_state = mistral_get_pendown_state, -}; - -static struct spi_board_info __initdata mistral_boardinfo[] = { { - /* MicroWire (bus 2) CS0 has an ads7846e */ - .modalias = "ads7846", - .platform_data = &mistral_ts_info, - .max_speed_hz = 120000 /* max sample rate at 3V */ - * 26 /* command + data + overhead */, - .bus_num = 2, - .chip_select = 0, -} }; - -static irqreturn_t -osk_mistral_wake_interrupt(int irq, void *ignored) -{ - return IRQ_HANDLED; -} - -static void __init osk_mistral_init(void) -{ - /* NOTE: we could actually tell if there's a Mistral board - * attached, e.g. by trying to read something from the ads7846. - * But this arch_init() code is too early for that, since we - * can't talk to the ads or even the i2c eeprom. - */ - - /* parallel camera interface */ - omap_cfg_reg(J15_1610_CAM_LCLK); - omap_cfg_reg(J18_1610_CAM_D7); - omap_cfg_reg(J19_1610_CAM_D6); - omap_cfg_reg(J14_1610_CAM_D5); - omap_cfg_reg(K18_1610_CAM_D4); - omap_cfg_reg(K19_1610_CAM_D3); - omap_cfg_reg(K15_1610_CAM_D2); - omap_cfg_reg(K14_1610_CAM_D1); - omap_cfg_reg(L19_1610_CAM_D0); - omap_cfg_reg(L18_1610_CAM_VS); - omap_cfg_reg(L15_1610_CAM_HS); - omap_cfg_reg(M19_1610_CAM_RSTZ); - omap_cfg_reg(Y15_1610_CAM_OUTCLK); - - /* serial camera interface */ - omap_cfg_reg(H19_1610_CAM_EXCLK); - omap_cfg_reg(W13_1610_CCP_CLKM); - omap_cfg_reg(Y12_1610_CCP_CLKP); - /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */ - /* omap_cfg_reg(Y14_1610_CCP_DATAM); */ - omap_cfg_reg(W14_1610_CCP_DATAP); - - /* CAM_PWDN */ - if (gpio_request(11, "cam_pwdn") == 0) { - omap_cfg_reg(N20_1610_GPIO11); - gpio_direction_output(11, 0); - } else - pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); - - - /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ - gpio_request(6, "ts_busy"); - gpio_direction_input(6); - - omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ - gpio_request(4, "ts_int"); - gpio_direction_input(4); - irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING); - - mistral_boardinfo[0].irq = gpio_to_irq(4); - spi_register_board_info(mistral_boardinfo, - ARRAY_SIZE(mistral_boardinfo)); - - /* the sideways button (SW1) is for use as a "wakeup" button - * - * NOTE: The Mistral board has the wakeup button (SW1) wired - * to the LCD 3.3V rail, which is powered down during suspend. - * To allow this button to wake up the omap, work around this - * HW bug by rewiring SW1 to use the main 3.3V rail. - */ - omap_cfg_reg(N15_1610_MPUIO2); - if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { - int ret = 0; - int irq = gpio_to_irq(OMAP_MPUIO(2)); - - gpio_direction_input(OMAP_MPUIO(2)); - irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING); - /* share the IRQ in case someone wants to use the - * button for more than wakeup from system sleep. - */ - ret = request_irq(irq, - &osk_mistral_wake_interrupt, - IRQF_SHARED, "mistral_wakeup", - &osk_mistral_wake_interrupt); - if (ret != 0) { - gpio_free(OMAP_MPUIO(2)); - printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", - ret); - } else - enable_irq_wake(irq); - } else - printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); - - /* LCD: backlight, and power; power controls other devices on the - * board, like the touchscreen, EEPROM, and wakeup (!) switch. - */ - omap_cfg_reg(PWL); - if (gpio_request(2, "lcd_pwr") == 0) - gpio_direction_output(2, 1); - - /* - * GPIO based LEDs - */ - omap_cfg_reg(P18_1610_GPIO3); - omap_cfg_reg(MPUIO4); - - i2c_register_board_info(1, mistral_i2c_board_info, - ARRAY_SIZE(mistral_i2c_board_info)); - - platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); -} -#else -static void __init osk_mistral_init(void) { } -#endif - -#define EMIFS_CS3_VAL (0x88013141) - static void __init osk_init(void) { + struct gpio_desc *d; u32 l; osk_init_smc91x(); @@ -620,10 +394,31 @@ static void __init osk_init(void) osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); osk_flash_resource.end += SZ_32M - 1; - osk5912_smc91x_resources[1].start = gpio_to_irq(0); - osk5912_smc91x_resources[1].end = gpio_to_irq(0); - osk5912_cf_resources[0].start = gpio_to_irq(62); - osk5912_cf_resources[0].end = gpio_to_irq(62); + + /* + * Add the GPIOs to be used as IRQs and immediately look them up + * to be passed as an IRQ resource. This is ugly but should work + * until the day we convert to device tree. + */ + gpiod_add_lookup_table(&osk_irq_gpio_table); + + d = gpiod_get(NULL, "smc_irq", GPIOD_IN); + if (IS_ERR(d)) { + pr_err("Unable to get SMC IRQ GPIO descriptor\n"); + } else { + irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_RISING); + osk5912_smc91x_resources[1] = DEFINE_RES_IRQ(gpiod_to_irq(d)); + } + + d = gpiod_get(NULL, "cf_irq", GPIOD_IN); + if (IS_ERR(d)) { + pr_err("Unable to get CF IRQ GPIO descriptor\n"); + } else { + /* the CF I/O IRQ is really active-low */ + irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_FALLING); + osk5912_cf_resources[0] = DEFINE_RES_IRQ(gpiod_to_irq(d)); + } + platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); l = omap_readl(USB_TRANSCEIVER_CTRL); @@ -633,30 +428,25 @@ static void __init osk_init(void) gpiod_add_lookup_table(&osk_usb_gpio_table); omap1_usb_init(&osk_usb_config); + omap_serial_init(); + /* irq for tps65010 chip */ /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ - if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) - gpio_direction_input(OMAP_MPUIO(1)); - - omap_serial_init(); - osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1)); + d = gpiod_get(NULL, "tps65010", GPIOD_IN); + if (IS_ERR(d)) + pr_err("Unable to get TPS65010 IRQ GPIO descriptor\n"); + else + osk_i2c_board_info[0].irq = gpiod_to_irq(d); omap_register_i2c_bus(1, 400, osk_i2c_board_info, ARRAY_SIZE(osk_i2c_board_info)); - osk_mistral_init(); - -#ifdef CONFIG_OMAP_OSK_MISTRAL - omapfb_set_lcd_config(&osk_lcd_config); -#endif - } MACHINE_START(OMAP_OSK, "TI-OSK") /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ .atag_offset = 0x100, - .map_io = omap16xx_map_io, + .map_io = omap1_map_io, .init_early = omap1_init_early, .init_irq = omap1_init_irq, - .handle_irq = omap1_handle_irq, .init_machine = osk_init, .init_late = omap1_init_late, .init_time = omap1_timer_init, |