1 // SPDX-License-Identifier: GPL-2.0
3 // Copyright (C) 2010 Maurus Cuelenaere
5 #include <linux/delay.h>
7 #include <linux/gpio.h>
8 #include <linux/gpio/machine.h>
9 #include <linux/init.h>
10 #include <linux/platform_device.h>
11 #include <linux/pwm.h>
12 #include <linux/pwm_backlight.h>
13 #include <linux/serial_core.h>
14 #include <linux/serial_s3c.h>
15 #include <linux/spi/spi_gpio.h>
16 #include <linux/usb/gpio_vbus.h>
17 #include <linux/platform_data/s3c-hsotg.h>
19 #include <asm/mach-types.h>
20 #include <asm/mach/map.h>
23 #include <mach/regs-gpio.h>
24 #include <mach/gpio-samsung.h>
27 #include <plat/devs.h>
28 #include <linux/platform_data/i2c-s3c2410.h>
29 #include <plat/gpio-cfg.h>
30 #include <linux/platform_data/hwmon-s3c.h>
31 #include <linux/platform_data/usb-ohci-s3c2410.h>
32 #include <plat/sdhci.h>
33 #include <linux/platform_data/touchscreen-s3c2410.h>
35 #include <video/platform_lcd.h>
36 #include <plat/samsung-time.h>
39 #include "mach-smartq.h"
40 #include "regs-modem.h"
42 #define UCON S3C2410_UCON_DEFAULT
43 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
44 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
46 static struct s3c2410_uartcfg smartq_uartcfgs[] __initdata = {
70 static void smartq_usb_host_powercontrol(int port, int to)
72 pr_debug("%s(%d, %d)\n", __func__, port, to);
75 gpio_set_value(S3C64XX_GPL(0), to);
76 gpio_set_value(S3C64XX_GPL(1), to);
80 static irqreturn_t smartq_usb_host_ocirq(int irq, void *pw)
82 struct s3c2410_hcd_info *info = pw;
84 if (gpio_get_value(S3C64XX_GPL(10)) == 0) {
85 pr_debug("%s: over-current irq (oc detected)\n", __func__);
86 s3c2410_usb_report_oc(info, 3);
88 pr_debug("%s: over-current irq (oc cleared)\n", __func__);
89 s3c2410_usb_report_oc(info, 0);
95 static void smartq_usb_host_enableoc(struct s3c2410_hcd_info *info, int on)
99 /* This isn't present on a SmartQ 5 board */
100 if (machine_is_smartq5())
104 ret = request_irq(gpio_to_irq(S3C64XX_GPL(10)),
105 smartq_usb_host_ocirq,
106 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
107 "USB host overcurrent", info);
109 pr_err("failed to request usb oc irq: %d\n", ret);
111 free_irq(gpio_to_irq(S3C64XX_GPL(10)), info);
115 static struct s3c2410_hcd_info smartq_usb_host_info = {
117 .flags = S3C_HCDFLG_USED
123 .power_control = smartq_usb_host_powercontrol,
124 .enable_oc = smartq_usb_host_enableoc,
127 static struct gpio_vbus_mach_info smartq_usb_otg_vbus_pdata = {
128 .gpio_vbus = S3C64XX_GPL(9),
130 .gpio_vbus_inverted = true,
133 static struct platform_device smartq_usb_otg_vbus_dev = {
135 .dev.platform_data = &smartq_usb_otg_vbus_pdata,
138 static struct pwm_lookup smartq_pwm_lookup[] = {
139 PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
140 1000000000 / (1000 * 20), PWM_POLARITY_NORMAL),
143 static int smartq_bl_init(struct device *dev)
145 s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));
150 static struct platform_pwm_backlight_data smartq_backlight_data = {
151 .max_brightness = 1000,
152 .dft_brightness = 600,
154 .init = smartq_bl_init,
157 static struct platform_device smartq_backlight_device = {
158 .name = "pwm-backlight",
160 .parent = &samsung_device_pwm.dev,
161 .platform_data = &smartq_backlight_data,
165 static struct s3c2410_ts_mach_info smartq_touchscreen_pdata __initdata = {
168 .oversampling_shift = 4,
171 static struct s3c_sdhci_platdata smartq_internal_hsmmc_pdata = {
173 .cd_type = S3C_SDHCI_CD_PERMANENT,
176 static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = {
177 /* Battery voltage (?-4.2V) */
178 .in[0] = &(struct s3c_hwmon_chcfg) {
179 .name = "smartq:battery-voltage",
183 /* Reference voltage (1.2V) */
184 .in[1] = &(struct s3c_hwmon_chcfg) {
185 .name = "smartq:reference-voltage",
191 static struct dwc2_hsotg_plat smartq_hsotg_pdata;
193 static int __init smartq_lcd_setup_gpio(void)
197 ret = gpio_request(S3C64XX_GPM(3), "LCD power");
202 gpio_direction_output(S3C64XX_GPM(3), 0);
208 static struct spi_gpio_platform_data smartq_lcd_control = {
209 .sck = S3C64XX_GPM(1),
210 .mosi = S3C64XX_GPM(2),
211 .miso = S3C64XX_GPM(2),
214 static struct platform_device smartq_lcd_control_device = {
217 .dev.platform_data = &smartq_lcd_control,
220 static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
222 gpio_direction_output(S3C64XX_GPM(3), power);
225 static struct plat_lcd_data smartq_lcd_power_data = {
226 .set_power = smartq_lcd_power_set,
229 static struct platform_device smartq_lcd_power_device = {
230 .name = "platform-lcd",
231 .dev.parent = &s3c_device_fb.dev,
232 .dev.platform_data = &smartq_lcd_power_data,
235 static struct i2c_board_info smartq_i2c_devs[] __initdata = {
236 { I2C_BOARD_INFO("wm8987", 0x1a), },
239 static struct platform_device *smartq_devices[] __initdata = {
240 &s3c_device_hsmmc1, /* Init iNAND first, ... */
241 &s3c_device_hsmmc0, /* ... then the external SD card */
250 &s3c_device_usb_hsotg,
251 &s3c64xx_device_iis0,
252 &smartq_backlight_device,
253 &smartq_lcd_control_device,
254 &smartq_lcd_power_device,
255 &smartq_usb_otg_vbus_dev,
258 static void __init smartq_lcd_mode_set(void)
262 /* set the LCD type */
263 tmp = __raw_readl(S3C64XX_SPCON);
264 tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
265 tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
266 __raw_writel(tmp, S3C64XX_SPCON);
268 /* remove the LCD bypass */
269 tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
270 tmp &= ~MIFPCON_LCD_BYPASS;
271 __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
274 static void smartq_power_off(void)
276 gpio_direction_output(S3C64XX_GPK(15), 1);
279 static int __init smartq_power_off_init(void)
283 ret = gpio_request(S3C64XX_GPK(15), "Power control");
285 pr_err("%s: failed to get GPK15\n", __func__);
290 gpio_direction_output(S3C64XX_GPK(15), 0);
292 pm_power_off = smartq_power_off;
297 static int __init smartq_usb_host_init(void)
301 ret = gpio_request(S3C64XX_GPL(0), "USB power control");
303 pr_err("%s: failed to get GPL0\n", __func__);
307 ret = gpio_request(S3C64XX_GPL(1), "USB host power control");
309 pr_err("%s: failed to get GPL1\n", __func__);
313 if (!machine_is_smartq5()) {
314 /* This isn't present on a SmartQ 5 board */
315 ret = gpio_request(S3C64XX_GPL(10), "USB host overcurrent");
317 pr_err("%s: failed to get GPL10\n", __func__);
323 gpio_direction_output(S3C64XX_GPL(0), 0);
324 gpio_direction_output(S3C64XX_GPL(1), 0);
325 if (!machine_is_smartq5())
326 gpio_direction_input(S3C64XX_GPL(10));
328 s3c_device_ohci.dev.platform_data = &smartq_usb_host_info;
333 gpio_free(S3C64XX_GPL(1));
335 gpio_free(S3C64XX_GPL(0));
339 static int __init smartq_wifi_init(void)
343 ret = gpio_request(S3C64XX_GPK(1), "wifi control");
345 pr_err("%s: failed to get GPK1\n", __func__);
349 ret = gpio_request(S3C64XX_GPK(2), "wifi reset");
351 pr_err("%s: failed to get GPK2\n", __func__);
352 gpio_free(S3C64XX_GPK(1));
357 gpio_direction_output(S3C64XX_GPK(1), 1);
360 gpio_direction_output(S3C64XX_GPK(2), 0);
362 gpio_set_value(S3C64XX_GPK(2), 1);
363 gpio_direction_input(S3C64XX_GPK(2));
368 static struct map_desc smartq_iodesc[] __initdata = {};
369 void __init smartq_map_io(void)
371 s3c64xx_init_io(smartq_iodesc, ARRAY_SIZE(smartq_iodesc));
372 s3c64xx_set_xtal_freq(12000000);
373 s3c64xx_set_xusbxti_freq(12000000);
374 s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs));
375 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
377 smartq_lcd_mode_set();
380 static struct gpiod_lookup_table smartq_audio_gpios = {
381 .dev_id = "smartq-audio",
383 GPIO_LOOKUP("GPL", 12, "headphone detect", 0),
384 GPIO_LOOKUP("GPK", 12, "amplifiers shutdown", 0),
389 void __init smartq_machine_init(void)
391 s3c_i2c0_set_platdata(NULL);
392 dwc2_hsotg_set_platdata(&smartq_hsotg_pdata);
393 s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
394 s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
395 s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
396 s3c64xx_ts_set_platdata(&smartq_touchscreen_pdata);
398 i2c_register_board_info(0, smartq_i2c_devs,
399 ARRAY_SIZE(smartq_i2c_devs));
401 WARN_ON(smartq_lcd_setup_gpio());
402 WARN_ON(smartq_power_off_init());
403 WARN_ON(smartq_usb_host_init());
404 WARN_ON(smartq_wifi_init());
406 pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
407 platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
409 gpiod_add_lookup_table(&smartq_audio_gpios);
410 platform_device_register_simple("smartq-audio", -1, NULL, 0);