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linux/arch/arm/mach-omap1/board-nokia770.c
Linus Walleij df89de979f ARM: omap1: Make serial wakeup GPIOs use descriptors 
The code in serial.c looks up GPIOs corresponding to a line
on the UART when muxed in as GPIO to use this as a wakeup
on serial activity for OMAP1.

Utilize the NULL device to define some board-specific
GPIO lookups and use these to immediately look up the
same GPIOs, set as input and convert to IRQ numbers,
then set these to wakeup IRQs. This is ugly but should work.

This is only needed on the OSK1 and Nokia 770 devices that
use the OMAP16xx.

Fixes: 92bf78b33b ("gpio: omap: use dynamic allocation of base")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-05-24 15:01:45 +02:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/arch/arm/mach-omap1/board-nokia770.c
*
* Modified from board-generic.c
*/
#include <linux/clkdev.h>
#include <linux/irq.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio/machine.h>
#include <linux/gpio/property.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/input.h>
#include <linux/omapfb.h>
#include <linux/spi/spi.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/platform_data/keypad-omap.h>
#include <linux/platform_data/lcd-mipid.h>
#include <linux/platform_data/gpio-omap.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "mux.h"
#include "hardware.h"
#include "usb.h"
#include "common.h"
#include "clock.h"
#include "mmc.h"
static const struct software_node nokia770_mpuio_gpiochip_node = {
.name = "mpuio",
};
static const struct software_node nokia770_gpiochip1_node = {
.name = "gpio-0-15",
};
static const struct software_node nokia770_gpiochip2_node = {
.name = "gpio-16-31",
};
static const struct software_node *nokia770_gpiochip_nodes[] = {
&nokia770_mpuio_gpiochip_node,
&nokia770_gpiochip1_node,
&nokia770_gpiochip2_node,
NULL
};
#define ADS7846_PENDOWN_GPIO 15
static const unsigned int nokia770_keymap[] = {
KEY(1, 0, GROUP_0 | KEY_UP),
KEY(2, 0, GROUP_1 | KEY_F5),
KEY(0, 1, GROUP_0 | KEY_LEFT),
KEY(1, 1, GROUP_0 | KEY_ENTER),
KEY(2, 1, GROUP_0 | KEY_RIGHT),
KEY(0, 2, GROUP_1 | KEY_ESC),
KEY(1, 2, GROUP_0 | KEY_DOWN),
KEY(2, 2, GROUP_1 | KEY_F4),
KEY(0, 3, GROUP_2 | KEY_F7),
KEY(1, 3, GROUP_2 | KEY_F8),
KEY(2, 3, GROUP_2 | KEY_F6),
};
static struct resource nokia770_kp_resources[] = {
[0] = {
.start = INT_KEYBOARD,
.end = INT_KEYBOARD,
.flags = IORESOURCE_IRQ,
},
};
static const struct matrix_keymap_data nokia770_keymap_data = {
.keymap = nokia770_keymap,
.keymap_size = ARRAY_SIZE(nokia770_keymap),
};
static struct omap_kp_platform_data nokia770_kp_data = {
.rows = 8,
.cols = 8,
.keymap_data = &nokia770_keymap_data,
.delay = 4,
};
static struct platform_device nokia770_kp_device = {
.name = "omap-keypad",
.id = -1,
.dev = {
.platform_data = &nokia770_kp_data,
},
.num_resources = ARRAY_SIZE(nokia770_kp_resources),
.resource = nokia770_kp_resources,
};
static struct platform_device *nokia770_devices[] __initdata = {
&nokia770_kp_device,
};
static struct mipid_platform_data nokia770_mipid_platform_data = { };
static const struct omap_lcd_config nokia770_lcd_config __initconst = {
.ctrl_name = "hwa742",
};
static const struct property_entry nokia770_mipid_props[] = {
PROPERTY_ENTRY_GPIO("reset-gpios", &nokia770_gpiochip1_node,
13, GPIO_ACTIVE_LOW),
{ }
};
static const struct software_node nokia770_mipid_swnode = {
.name = "lcd_mipid",
.properties = nokia770_mipid_props,
};
static void __init mipid_dev_init(void)
{
nokia770_mipid_platform_data.data_lines = 16;
omapfb_set_lcd_config(&nokia770_lcd_config);
}
static const struct property_entry nokia770_ads7846_props[] = {
PROPERTY_ENTRY_STRING("compatible", "ti,ads7846"),
PROPERTY_ENTRY_U32("touchscreen-size-x", 4096),
PROPERTY_ENTRY_U32("touchscreen-size-y", 4096),
PROPERTY_ENTRY_U32("touchscreen-max-pressure", 256),
PROPERTY_ENTRY_U32("touchscreen-average-samples", 10),
PROPERTY_ENTRY_U16("ti,x-plate-ohms", 180),
PROPERTY_ENTRY_U16("ti,debounce-tol", 3),
PROPERTY_ENTRY_U16("ti,debounce-rep", 1),
PROPERTY_ENTRY_GPIO("pendown-gpios", &nokia770_gpiochip1_node,
ADS7846_PENDOWN_GPIO, GPIO_ACTIVE_LOW),
{ }
};
static const struct software_node nokia770_ads7846_swnode = {
.name = "ads7846",
.properties = nokia770_ads7846_props,
};
static struct spi_board_info nokia770_spi_board_info[] __initdata = {
[0] = {
.modalias = "lcd_mipid",
.bus_num = 2,
.chip_select = 3,
.max_speed_hz = 12000000,
.platform_data = &nokia770_mipid_platform_data,
.swnode = &nokia770_mipid_swnode,
},
[1] = {
.modalias = "ads7846",
.bus_num = 2,
.chip_select = 0,
.max_speed_hz = 2500000,
.swnode = &nokia770_ads7846_swnode,
},
};
static void __init hwa742_dev_init(void)
{
clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
}
/* assume no Mini-AB port */
static struct omap_usb_config nokia770_usb_config __initdata = {
.otg = 1,
.register_host = 1,
.register_dev = 1,
.hmc_mode = 16,
.pins[0] = 6,
.extcon = "tahvo-usb",
};
#if IS_ENABLED(CONFIG_MMC_OMAP)
static struct gpiod_lookup_table nokia770_mmc_gpio_table = {
.dev_id = "mmci-omap.1",
.table = {
/* Slot index 0, VSD power, GPIO 41 */
GPIO_LOOKUP_IDX("gpio-32-47", 9,
"vsd", 0, GPIO_ACTIVE_HIGH),
/* Slot index 0, switch, GPIO 23 */
GPIO_LOOKUP_IDX("gpio-16-31", 7,
"cover", 0, GPIO_ACTIVE_HIGH),
{ }
},
};
static struct omap_mmc_platform_data nokia770_mmc2_data = {
.nr_slots = 1,
.max_freq = 12000000,
.slots[0] = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.name = "mmcblk",
},
};
static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
static void __init nokia770_mmc_init(void)
{
gpiod_add_lookup_table(&nokia770_mmc_gpio_table);
/* Only the second MMC controller is used */
nokia770_mmc_data[1] = &nokia770_mmc2_data;
omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
}
#else
static inline void nokia770_mmc_init(void)
{
}
#endif
#if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
static const struct software_node_ref_args nokia770_cbus_gpio_refs[] = {
SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 9, 0),
SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 10, 0),
SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 11, 0),
};
static const struct property_entry nokia770_cbus_props[] = {
PROPERTY_ENTRY_REF_ARRAY("gpios", nokia770_cbus_gpio_refs),
{ }
};
static struct platform_device nokia770_cbus_device = {
.name = "i2c-cbus-gpio",
.id = 2,
};
static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
{
I2C_BOARD_INFO("retu", 0x01),
},
{
I2C_BOARD_INFO("tahvo", 0x02),
},
};
static void __init nokia770_cbus_init(void)
{
struct gpio_desc *d;
int irq;
d = gpiod_get(NULL, "retu_irq", GPIOD_IN);
if (IS_ERR(d)) {
pr_err("Unable to get CBUS Retu IRQ GPIO descriptor\n");
} else {
irq = gpiod_to_irq(d);
irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
nokia770_i2c_board_info_2[0].irq = irq;
}
d = gpiod_get(NULL, "tahvo_irq", GPIOD_IN);
if (IS_ERR(d)) {
pr_err("Unable to get CBUS Tahvo IRQ GPIO descriptor\n");
} else {
irq = gpiod_to_irq(d);
irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
nokia770_i2c_board_info_2[1].irq = irq;
}
i2c_register_board_info(2, nokia770_i2c_board_info_2,
ARRAY_SIZE(nokia770_i2c_board_info_2));
device_create_managed_software_node(&nokia770_cbus_device.dev,
nokia770_cbus_props, NULL);
platform_device_register(&nokia770_cbus_device);
}
#else /* CONFIG_I2C_CBUS_GPIO */
static void __init nokia770_cbus_init(void)
{
}
#endif /* CONFIG_I2C_CBUS_GPIO */
static struct gpiod_lookup_table nokia770_irq_gpio_table = {
.dev_id = NULL,
.table = {
/* GPIO used by SPI device 1 */
GPIO_LOOKUP("gpio-0-15", 15, "ads7846_irq",
GPIO_ACTIVE_HIGH),
/* GPIO used for retu IRQ */
GPIO_LOOKUP("gpio-48-63", 15, "retu_irq",
GPIO_ACTIVE_HIGH),
/* GPIO used for tahvo IRQ */
GPIO_LOOKUP("gpio-32-47", 8, "tahvo_irq",
GPIO_ACTIVE_HIGH),
/* GPIOs used by 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 void __init omap_nokia770_init(void)
{
struct gpio_desc *d;
/* On Nokia 770, the SleepX signal is masked with an
* MPUIO line by default. It has to be unmasked for it
* to become functional */
/* SleepX mask direction */
omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
/* Unmask SleepX signal */
omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
software_node_register_node_group(nokia770_gpiochip_nodes);
platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
gpiod_add_lookup_table(&nokia770_irq_gpio_table);
d = gpiod_get(NULL, "ads7846_irq", GPIOD_IN);
if (IS_ERR(d))
pr_err("Unable to get ADS7846 IRQ GPIO descriptor\n");
else
nokia770_spi_board_info[1].irq = gpiod_to_irq(d);
spi_register_board_info(nokia770_spi_board_info,
ARRAY_SIZE(nokia770_spi_board_info));
omap_serial_init();
omap_register_i2c_bus(1, 100, NULL, 0);
hwa742_dev_init();
mipid_dev_init();
omap1_usb_init(&nokia770_usb_config);
nokia770_mmc_init();
nokia770_cbus_init();
}
MACHINE_START(NOKIA770, "Nokia 770")
.atag_offset = 0x100,
.map_io = omap1_map_io,
.init_early = omap1_init_early,
.init_irq = omap1_init_irq,
.handle_irq = omap1_handle_irq,
.init_machine = omap_nokia770_init,
.init_late = omap1_init_late,
.init_time = omap1_timer_init,
.restart = omap1_restart,
MACHINE_END
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