1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Hardware definitions for Palm Tungsten|E2
4 *
5 * Author:
6 *	Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
7 *
8 * Rewrite for mainline:
9 *	Marek Vasut <marek.vasut@gmail.com>
10 *
11 * (find more info at www.hackndev.com)
12 */
13
14#include <linux/platform_device.h>
15#include <linux/delay.h>
16#include <linux/irq.h>
17#include <linux/gpio_keys.h>
18#include <linux/gpio/machine.h>
19#include <linux/input.h>
20#include <linux/pda_power.h>
21#include <linux/pwm.h>
22#include <linux/pwm_backlight.h>
23#include <linux/gpio.h>
24#include <linux/wm97xx.h>
25#include <linux/power_supply.h>
26
27#include <asm/mach-types.h>
28#include <asm/mach/arch.h>
29#include <asm/mach/map.h>
30
31#include "pxa25x.h"
32#include <mach/audio.h>
33#include "palmte2.h"
34#include <linux/platform_data/mmc-pxamci.h>
35#include <linux/platform_data/video-pxafb.h>
36#include <linux/platform_data/irda-pxaficp.h>
37#include "udc.h"
38#include <linux/platform_data/asoc-palm27x.h>
39
40#include "generic.h"
41#include "devices.h"
42
43/******************************************************************************
44 * Pin configuration
45 ******************************************************************************/
46static unsigned long palmte2_pin_config[] __initdata = {
47	/* MMC */
48	GPIO6_MMC_CLK,
49	GPIO8_MMC_CS0,
50	GPIO10_GPIO,	/* SD detect */
51	GPIO55_GPIO,	/* SD power */
52	GPIO51_GPIO,	/* SD r/o switch */
53
54	/* AC97 */
55	GPIO28_AC97_BITCLK,
56	GPIO29_AC97_SDATA_IN_0,
57	GPIO30_AC97_SDATA_OUT,
58	GPIO31_AC97_SYNC,
59
60	/* PWM */
61	GPIO16_PWM0_OUT,
62
63	/* USB */
64	GPIO15_GPIO,	/* usb detect */
65	GPIO53_GPIO,	/* usb power */
66
67	/* IrDA */
68	GPIO48_GPIO,	/* ir disable */
69	GPIO46_FICP_RXD,
70	GPIO47_FICP_TXD,
71
72	/* LCD */
73	GPIOxx_LCD_TFT_16BPP,
74
75	/* GPIO KEYS */
76	GPIO5_GPIO,	/* notes */
77	GPIO7_GPIO,	/* tasks */
78	GPIO11_GPIO,	/* calendar */
79	GPIO13_GPIO,	/* contacts */
80	GPIO14_GPIO,	/* center */
81	GPIO19_GPIO,	/* left */
82	GPIO20_GPIO,	/* right */
83	GPIO21_GPIO,	/* down */
84	GPIO22_GPIO,	/* up */
85
86	/* MISC */
87	GPIO1_RST,	/* reset */
88	GPIO4_GPIO,	/* Hotsync button */
89	GPIO9_GPIO,	/* power detect */
90	GPIO15_GPIO,	/* earphone detect */
91	GPIO37_GPIO,	/* LCD power */
92	GPIO56_GPIO,	/* Backlight power */
93};
94
95/******************************************************************************
96 * SD/MMC card controller
97 ******************************************************************************/
98static struct pxamci_platform_data palmte2_mci_platform_data = {
99	.ocr_mask		= MMC_VDD_32_33 | MMC_VDD_33_34,
100};
101
102static struct gpiod_lookup_table palmte2_mci_gpio_table = {
103	.dev_id = "pxa2xx-mci.0",
104	.table = {
105		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_DETECT_N,
106			    "cd", GPIO_ACTIVE_LOW),
107		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_READONLY,
108			    "wp", GPIO_ACTIVE_LOW),
109		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_POWER,
110			    "power", GPIO_ACTIVE_HIGH),
111		{ },
112	},
113};
114
115#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
116/******************************************************************************
117 * GPIO keys
118 ******************************************************************************/
119static struct gpio_keys_button palmte2_pxa_buttons[] = {
120	{KEY_F1,	GPIO_NR_PALMTE2_KEY_CONTACTS,	1, "Contacts" },
121	{KEY_F2,	GPIO_NR_PALMTE2_KEY_CALENDAR,	1, "Calendar" },
122	{KEY_F3,	GPIO_NR_PALMTE2_KEY_TASKS,	1, "Tasks" },
123	{KEY_F4,	GPIO_NR_PALMTE2_KEY_NOTES,	1, "Notes" },
124	{KEY_ENTER,	GPIO_NR_PALMTE2_KEY_CENTER,	1, "Center" },
125	{KEY_LEFT,	GPIO_NR_PALMTE2_KEY_LEFT,	1, "Left" },
126	{KEY_RIGHT,	GPIO_NR_PALMTE2_KEY_RIGHT,	1, "Right" },
127	{KEY_DOWN,	GPIO_NR_PALMTE2_KEY_DOWN,	1, "Down" },
128	{KEY_UP,	GPIO_NR_PALMTE2_KEY_UP,		1, "Up" },
129};
130
131static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
132	.buttons	= palmte2_pxa_buttons,
133	.nbuttons	= ARRAY_SIZE(palmte2_pxa_buttons),
134};
135
136static struct platform_device palmte2_pxa_keys = {
137	.name	= "gpio-keys",
138	.id	= -1,
139	.dev	= {
140		.platform_data = &palmte2_pxa_keys_data,
141	},
142};
143#endif
144
145/******************************************************************************
146 * Backlight
147 ******************************************************************************/
148static struct pwm_lookup palmte2_pwm_lookup[] = {
149	PWM_LOOKUP("pxa25x-pwm.0", 0, "pwm-backlight.0", NULL,
150		   PALMTE2_PERIOD_NS, PWM_POLARITY_NORMAL),
151};
152
153static struct gpio palmte_bl_gpios[] = {
154	{ GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
155	{ GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
156};
157
158static int palmte2_backlight_init(struct device *dev)
159{
160	return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
161}
162
163static int palmte2_backlight_notify(struct device *dev, int brightness)
164{
165	gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
166	gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
167	return brightness;
168}
169
170static void palmte2_backlight_exit(struct device *dev)
171{
172	gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
173}
174
175static struct platform_pwm_backlight_data palmte2_backlight_data = {
176	.max_brightness	= PALMTE2_MAX_INTENSITY,
177	.dft_brightness	= PALMTE2_MAX_INTENSITY,
178	.init		= palmte2_backlight_init,
179	.notify		= palmte2_backlight_notify,
180	.exit		= palmte2_backlight_exit,
181};
182
183static struct platform_device palmte2_backlight = {
184	.name	= "pwm-backlight",
185	.dev	= {
186		.parent		= &pxa25x_device_pwm0.dev,
187		.platform_data	= &palmte2_backlight_data,
188	},
189};
190
191/******************************************************************************
192 * IrDA
193 ******************************************************************************/
194static struct pxaficp_platform_data palmte2_ficp_platform_data = {
195	.gpio_pwdown		= GPIO_NR_PALMTE2_IR_DISABLE,
196	.transceiver_cap	= IR_SIRMODE | IR_OFF,
197};
198
199/******************************************************************************
200 * UDC
201 ******************************************************************************/
202static struct gpiod_lookup_table palmte2_udc_gpiod_table = {
203	.dev_id = "gpio-vbus",
204	.table = {
205		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_USB_DETECT_N,
206			    "vbus", GPIO_ACTIVE_LOW),
207		GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_USB_PULLUP,
208			    "pullup", GPIO_ACTIVE_HIGH),
209		{ },
210	},
211};
212
213static struct platform_device palmte2_gpio_vbus = {
214	.name	= "gpio-vbus",
215	.id	= -1,
216};
217
218/******************************************************************************
219 * Power supply
220 ******************************************************************************/
221static int power_supply_init(struct device *dev)
222{
223	int ret;
224
225	ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
226	if (ret)
227		goto err1;
228	ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
229	if (ret)
230		goto err2;
231
232	return 0;
233
234err2:
235	gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
236err1:
237	return ret;
238}
239
240static int palmte2_is_ac_online(void)
241{
242	return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
243}
244
245static void power_supply_exit(struct device *dev)
246{
247	gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
248}
249
250static char *palmte2_supplicants[] = {
251	"main-battery",
252};
253
254static struct pda_power_pdata power_supply_info = {
255	.init            = power_supply_init,
256	.is_ac_online    = palmte2_is_ac_online,
257	.exit            = power_supply_exit,
258	.supplied_to     = palmte2_supplicants,
259	.num_supplicants = ARRAY_SIZE(palmte2_supplicants),
260};
261
262static struct platform_device power_supply = {
263	.name = "pda-power",
264	.id   = -1,
265	.dev  = {
266		.platform_data = &power_supply_info,
267	},
268};
269
270/******************************************************************************
271 * WM97xx audio, battery
272 ******************************************************************************/
273static struct wm97xx_batt_pdata palmte2_batt_pdata = {
274	.batt_aux	= WM97XX_AUX_ID3,
275	.temp_aux	= WM97XX_AUX_ID2,
276	.charge_gpio	= -1,
277	.max_voltage	= PALMTE2_BAT_MAX_VOLTAGE,
278	.min_voltage	= PALMTE2_BAT_MIN_VOLTAGE,
279	.batt_mult	= 1000,
280	.batt_div	= 414,
281	.temp_mult	= 1,
282	.temp_div	= 1,
283	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LIPO,
284	.batt_name	= "main-batt",
285};
286
287static struct wm97xx_pdata palmte2_wm97xx_pdata = {
288	.batt_pdata	= &palmte2_batt_pdata,
289};
290
291static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
292	.codec_pdata	= { &palmte2_wm97xx_pdata, },
293};
294
295static struct palm27x_asoc_info palmte2_asoc_pdata = {
296	.jack_gpio	= GPIO_NR_PALMTE2_EARPHONE_DETECT,
297};
298
299static struct platform_device palmte2_asoc = {
300	.name = "palm27x-asoc",
301	.id   = -1,
302	.dev  = {
303		.platform_data = &palmte2_asoc_pdata,
304	},
305};
306
307/******************************************************************************
308 * Framebuffer
309 ******************************************************************************/
310static struct pxafb_mode_info palmte2_lcd_modes[] = {
311{
312	.pixclock	= 77757,
313	.xres		= 320,
314	.yres		= 320,
315	.bpp		= 16,
316
317	.left_margin	= 28,
318	.right_margin	= 7,
319	.upper_margin	= 7,
320	.lower_margin	= 5,
321
322	.hsync_len	= 4,
323	.vsync_len	= 1,
324},
325};
326
327static struct pxafb_mach_info palmte2_lcd_screen = {
328	.modes		= palmte2_lcd_modes,
329	.num_modes	= ARRAY_SIZE(palmte2_lcd_modes),
330	.lcd_conn	= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
331};
332
333/******************************************************************************
334 * Machine init
335 ******************************************************************************/
336static struct platform_device *devices[] __initdata = {
337#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
338	&palmte2_pxa_keys,
339#endif
340	&palmte2_backlight,
341	&power_supply,
342	&palmte2_asoc,
343	&palmte2_gpio_vbus,
344};
345
346/* setup udc GPIOs initial state */
347static void __init palmte2_udc_init(void)
348{
349	if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
350		gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
351		gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
352	}
353}
354
355static void __init palmte2_init(void)
356{
357	pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
358
359	pxa_set_ffuart_info(NULL);
360	pxa_set_btuart_info(NULL);
361	pxa_set_stuart_info(NULL);
362
363	pxa_set_fb_info(NULL, &palmte2_lcd_screen);
364	gpiod_add_lookup_table(&palmte2_mci_gpio_table);
365	pxa_set_mci_info(&palmte2_mci_platform_data);
366	palmte2_udc_init();
367	pxa_set_ac97_info(&palmte2_ac97_pdata);
368	pxa_set_ficp_info(&palmte2_ficp_platform_data);
369
370	pwm_add_table(palmte2_pwm_lookup, ARRAY_SIZE(palmte2_pwm_lookup));
371	gpiod_add_lookup_table(&palmte2_udc_gpiod_table);
372	platform_add_devices(devices, ARRAY_SIZE(devices));
373}
374
375MACHINE_START(PALMTE2, "Palm Tungsten|E2")
376	.atag_offset	= 0x100,
377	.map_io		= pxa25x_map_io,
378	.nr_irqs	= PXA_NR_IRQS,
379	.init_irq	= pxa25x_init_irq,
380	.handle_irq	= pxa25x_handle_irq,
381	.init_time	= pxa_timer_init,
382	.init_machine	= palmte2_init,
383	.restart	= pxa_restart,
384MACHINE_END
385