1 /* linux/arch/arm/mach-msm/board-trout-mddi.c
2 ** Author: Brian Swetland <swetland@google.com>
3 */
4 #include <linux/gpio.h>
5 #include <linux/kernel.h>
6 #include <linux/init.h>
7 #include <linux/platform_device.h>
8 #include <linux/delay.h>
9 #include <linux/leds.h>
10 #include <linux/clk.h>
11 #include <linux/err.h>
12
13 #include <asm/io.h>
14 #include <asm/mach-types.h>
15 #include <asm/system_info.h>
16
17 #include <mach/msm_fb.h>
18 #include <mach/vreg.h>
19
20 #include "board-trout.h"
21 #include "proc_comm.h"
22 #include "devices.h"
23
24 #define TROUT_DEFAULT_BACKLIGHT_BRIGHTNESS 255
25
26 #define MDDI_CLIENT_CORE_BASE 0x108000
27 #define LCD_CONTROL_BLOCK_BASE 0x110000
28 #define SPI_BLOCK_BASE 0x120000
29 #define I2C_BLOCK_BASE 0x130000
30 #define PWM_BLOCK_BASE 0x140000
31 #define GPIO_BLOCK_BASE 0x150000
32 #define SYSTEM_BLOCK1_BASE 0x160000
33 #define SYSTEM_BLOCK2_BASE 0x170000
34
35
36 #define DPSUS (MDDI_CLIENT_CORE_BASE|0x24)
37 #define SYSCLKENA (MDDI_CLIENT_CORE_BASE|0x2C)
38 #define PWM0OFF (PWM_BLOCK_BASE|0x1C)
39
40 #define V_VDDE2E_VDD2_GPIO 0
41 #define MDDI_RST_N 82
42
43 #define MDDICAP0 (MDDI_CLIENT_CORE_BASE|0x00)
44 #define MDDICAP1 (MDDI_CLIENT_CORE_BASE|0x04)
45 #define MDDICAP2 (MDDI_CLIENT_CORE_BASE|0x08)
46 #define MDDICAP3 (MDDI_CLIENT_CORE_BASE|0x0C)
47 #define MDCAPCHG (MDDI_CLIENT_CORE_BASE|0x10)
48 #define MDCRCERC (MDDI_CLIENT_CORE_BASE|0x14)
49 #define TTBUSSEL (MDDI_CLIENT_CORE_BASE|0x18)
50 #define DPSET0 (MDDI_CLIENT_CORE_BASE|0x1C)
51 #define DPSET1 (MDDI_CLIENT_CORE_BASE|0x20)
52 #define DPSUS (MDDI_CLIENT_CORE_BASE|0x24)
53 #define DPRUN (MDDI_CLIENT_CORE_BASE|0x28)
54 #define SYSCKENA (MDDI_CLIENT_CORE_BASE|0x2C)
55 #define TESTMODE (MDDI_CLIENT_CORE_BASE|0x30)
56 #define FIFOMONI (MDDI_CLIENT_CORE_BASE|0x34)
57 #define INTMONI (MDDI_CLIENT_CORE_BASE|0x38)
58 #define MDIOBIST (MDDI_CLIENT_CORE_BASE|0x3C)
59 #define MDIOPSET (MDDI_CLIENT_CORE_BASE|0x40)
60 #define BITMAP0 (MDDI_CLIENT_CORE_BASE|0x44)
61 #define BITMAP1 (MDDI_CLIENT_CORE_BASE|0x48)
62 #define BITMAP2 (MDDI_CLIENT_CORE_BASE|0x4C)
63 #define BITMAP3 (MDDI_CLIENT_CORE_BASE|0x50)
64 #define BITMAP4 (MDDI_CLIENT_CORE_BASE|0x54)
65
66 #define SRST (LCD_CONTROL_BLOCK_BASE|0x00)
67 #define PORT_ENB (LCD_CONTROL_BLOCK_BASE|0x04)
68 #define START (LCD_CONTROL_BLOCK_BASE|0x08)
69 #define PORT (LCD_CONTROL_BLOCK_BASE|0x0C)
70 #define CMN (LCD_CONTROL_BLOCK_BASE|0x10)
71 #define GAMMA (LCD_CONTROL_BLOCK_BASE|0x14)
72 #define INTFLG (LCD_CONTROL_BLOCK_BASE|0x18)
73 #define INTMSK (LCD_CONTROL_BLOCK_BASE|0x1C)
74 #define MPLFBUF (LCD_CONTROL_BLOCK_BASE|0x20)
75 #define HDE_LEFT (LCD_CONTROL_BLOCK_BASE|0x24)
76 #define VDE_TOP (LCD_CONTROL_BLOCK_BASE|0x28)
77 #define PXL (LCD_CONTROL_BLOCK_BASE|0x30)
78 #define HCYCLE (LCD_CONTROL_BLOCK_BASE|0x34)
79 #define HSW (LCD_CONTROL_BLOCK_BASE|0x38)
80 #define HDE_START (LCD_CONTROL_BLOCK_BASE|0x3C)
81 #define HDE_SIZE (LCD_CONTROL_BLOCK_BASE|0x40)
82 #define VCYCLE (LCD_CONTROL_BLOCK_BASE|0x44)
83 #define VSW (LCD_CONTROL_BLOCK_BASE|0x48)
84 #define VDE_START (LCD_CONTROL_BLOCK_BASE|0x4C)
85 #define VDE_SIZE (LCD_CONTROL_BLOCK_BASE|0x50)
86 #define WAKEUP (LCD_CONTROL_BLOCK_BASE|0x54)
87 #define WSYN_DLY (LCD_CONTROL_BLOCK_BASE|0x58)
88 #define REGENB (LCD_CONTROL_BLOCK_BASE|0x5C)
89 #define VSYNIF (LCD_CONTROL_BLOCK_BASE|0x60)
90 #define WRSTB (LCD_CONTROL_BLOCK_BASE|0x64)
91 #define RDSTB (LCD_CONTROL_BLOCK_BASE|0x68)
92 #define ASY_DATA (LCD_CONTROL_BLOCK_BASE|0x6C)
93 #define ASY_DATB (LCD_CONTROL_BLOCK_BASE|0x70)
94 #define ASY_DATC (LCD_CONTROL_BLOCK_BASE|0x74)
95 #define ASY_DATD (LCD_CONTROL_BLOCK_BASE|0x78)
96 #define ASY_DATE (LCD_CONTROL_BLOCK_BASE|0x7C)
97 #define ASY_DATF (LCD_CONTROL_BLOCK_BASE|0x80)
98 #define ASY_DATG (LCD_CONTROL_BLOCK_BASE|0x84)
99 #define ASY_DATH (LCD_CONTROL_BLOCK_BASE|0x88)
100 #define ASY_CMDSET (LCD_CONTROL_BLOCK_BASE|0x8C)
101
102 #define SSICTL (SPI_BLOCK_BASE|0x00)
103 #define SSITIME (SPI_BLOCK_BASE|0x04)
104 #define SSITX (SPI_BLOCK_BASE|0x08)
105 #define SSIRX (SPI_BLOCK_BASE|0x0C)
106 #define SSIINTC (SPI_BLOCK_BASE|0x10)
107 #define SSIINTS (SPI_BLOCK_BASE|0x14)
108 #define SSIDBG1 (SPI_BLOCK_BASE|0x18)
109 #define SSIDBG2 (SPI_BLOCK_BASE|0x1C)
110 #define SSIID (SPI_BLOCK_BASE|0x20)
111
112 #define WKREQ (SYSTEM_BLOCK1_BASE|0x00)
113 #define CLKENB (SYSTEM_BLOCK1_BASE|0x04)
114 #define DRAMPWR (SYSTEM_BLOCK1_BASE|0x08)
115 #define INTMASK (SYSTEM_BLOCK1_BASE|0x0C)
116 #define GPIOSEL (SYSTEM_BLOCK2_BASE|0x00)
117
118 #define GPIODATA (GPIO_BLOCK_BASE|0x00)
119 #define GPIODIR (GPIO_BLOCK_BASE|0x04)
120 #define GPIOIS (GPIO_BLOCK_BASE|0x08)
121 #define GPIOIBE (GPIO_BLOCK_BASE|0x0C)
122 #define GPIOIEV (GPIO_BLOCK_BASE|0x10)
123 #define GPIOIE (GPIO_BLOCK_BASE|0x14)
124 #define GPIORIS (GPIO_BLOCK_BASE|0x18)
125 #define GPIOMIS (GPIO_BLOCK_BASE|0x1C)
126 #define GPIOIC (GPIO_BLOCK_BASE|0x20)
127 #define GPIOOMS (GPIO_BLOCK_BASE|0x24)
128 #define GPIOPC (GPIO_BLOCK_BASE|0x28)
129 #define GPIOID (GPIO_BLOCK_BASE|0x30)
130
131 #define SPI_WRITE(reg, val) \
132 { SSITX, 0x00010000 | (((reg) & 0xff) << 8) | ((val) & 0xff) }, \
133 { 0, 5 },
134
135 #define SPI_WRITE1(reg) \
136 { SSITX, (reg) & 0xff }, \
137 { 0, 5 },
138
139 struct mddi_table {
140 uint32_t reg;
141 uint32_t value;
142 };
143 static struct mddi_table mddi_toshiba_init_table[] = {
144 { DPSET0, 0x09e90046 },
145 { DPSET1, 0x00000118 },
146 { DPSUS, 0x00000000 },
147 { DPRUN, 0x00000001 },
148 { 1, 14 }, /* msleep 14 */
149 { SYSCKENA, 0x00000001 },
150 { CLKENB, 0x0000A1EF }, /* # SYS.CLKENB # Enable clocks for each module (without DCLK , i2cCLK) */
151
152 { GPIODATA, 0x02000200 }, /* # GPI .GPIODATA # GPIO2(RESET_LCD_N) set to 0 , GPIO3(eDRAM_Power) set to 0 */
153 { GPIODIR, 0x000030D }, /* 24D # GPI .GPIODIR # Select direction of GPIO port (0,2,3,6,9 output) */
154 { GPIOSEL, 0/*0x00000173*/}, /* # SYS.GPIOSEL # GPIO port multiplexing control */
155 { GPIOPC, 0x03C300C0 }, /* # GPI .GPIOPC # GPIO2,3 PD cut */
156 { WKREQ, 0x00000000 }, /* # SYS.WKREQ # Wake-up request event is VSYNC alignment */
157
158 { GPIOIBE, 0x000003FF },
159 { GPIOIS, 0x00000000 },
160 { GPIOIC, 0x000003FF },
161 { GPIOIE, 0x00000000 },
162
163 { GPIODATA, 0x00040004 }, /* # GPI .GPIODATA # eDRAM VD supply */
164 { 1, 1 }, /* msleep 1 */
165 { GPIODATA, 0x02040004 }, /* # GPI .GPIODATA # eDRAM VD supply */
166 { DRAMPWR, 0x00000001 }, /* eDRAM power */
167 };
168
169 #define GPIOSEL_VWAKEINT (1U << 0)
170 #define INTMASK_VWAKEOUT (1U << 0)
171
172
173 static struct clk *gp_clk;
174 static int trout_new_backlight = 1;
175 static struct vreg *vreg_mddi_1v5;
176 static struct vreg *vreg_lcm_2v85;
177
trout_process_mddi_table(struct msm_mddi_client_data * client_data,struct mddi_table * table,size_t count)178 static void trout_process_mddi_table(struct msm_mddi_client_data *client_data,
179 struct mddi_table *table, size_t count)
180 {
181 int i;
182 for (i = 0; i < count; i++) {
183 uint32_t reg = table[i].reg;
184 uint32_t value = table[i].value;
185
186 if (reg == 0)
187 udelay(value);
188 else if (reg == 1)
189 msleep(value);
190 else
191 client_data->remote_write(client_data, value, reg);
192 }
193 }
194
trout_mddi_toshiba_client_init(struct msm_mddi_bridge_platform_data * bridge_data,struct msm_mddi_client_data * client_data)195 static int trout_mddi_toshiba_client_init(
196 struct msm_mddi_bridge_platform_data *bridge_data,
197 struct msm_mddi_client_data *client_data)
198 {
199 int panel_id;
200
201 client_data->auto_hibernate(client_data, 0);
202 trout_process_mddi_table(client_data, mddi_toshiba_init_table,
203 ARRAY_SIZE(mddi_toshiba_init_table));
204 client_data->auto_hibernate(client_data, 1);
205 panel_id = (client_data->remote_read(client_data, GPIODATA) >> 4) & 3;
206 if (panel_id > 1) {
207 printk(KERN_WARNING "unknown panel id at mddi_enable\n");
208 return -1;
209 }
210 return 0;
211 }
212
trout_mddi_toshiba_client_uninit(struct msm_mddi_bridge_platform_data * bridge_data,struct msm_mddi_client_data * client_data)213 static int trout_mddi_toshiba_client_uninit(
214 struct msm_mddi_bridge_platform_data *bridge_data,
215 struct msm_mddi_client_data *client_data)
216 {
217 return 0;
218 }
219
220 static struct resource resources_msm_fb[] = {
221 {
222 .start = MSM_FB_BASE,
223 .end = MSM_FB_BASE + MSM_FB_SIZE,
224 .flags = IORESOURCE_MEM,
225 },
226 };
227
228 struct msm_mddi_bridge_platform_data toshiba_client_data = {
229 .init = trout_mddi_toshiba_client_init,
230 .uninit = trout_mddi_toshiba_client_uninit,
231 .fb_data = {
232 .xres = 320,
233 .yres = 480,
234 .width = 45,
235 .height = 67,
236 .output_format = 0,
237 },
238 };
239
240 static struct msm_mddi_platform_data mddi_pdata = {
241 .clk_rate = 122880000,
242 .fb_resource = resources_msm_fb,
243 .num_clients = 1,
244 .client_platform_data = {
245 {
246 .product_id = (0xd263 << 16 | 0),
247 .name = "mddi_c_d263_0000",
248 .id = 0,
249 .client_data = &toshiba_client_data,
250 .clk_rate = 0,
251 },
252 },
253 };
254
trout_init_panel(void)255 int __init trout_init_panel(void)
256 {
257 int rc;
258
259 if (!machine_is_trout())
260 return 0;
261 vreg_mddi_1v5 = vreg_get(0, "gp2");
262 if (IS_ERR(vreg_mddi_1v5))
263 return PTR_ERR(vreg_mddi_1v5);
264 vreg_lcm_2v85 = vreg_get(0, "gp4");
265 if (IS_ERR(vreg_lcm_2v85))
266 return PTR_ERR(vreg_lcm_2v85);
267
268 trout_new_backlight = system_rev >= 5;
269 if (trout_new_backlight) {
270 uint32_t config = PCOM_GPIO_CFG(27, 0, GPIO_OUTPUT,
271 GPIO_NO_PULL, GPIO_8MA);
272 msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &config, 0);
273 } else {
274 uint32_t config = PCOM_GPIO_CFG(27, 1, GPIO_OUTPUT,
275 GPIO_NO_PULL, GPIO_8MA);
276 msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &config, 0);
277
278 gp_clk = clk_get(NULL, "gp_clk");
279 if (IS_ERR(gp_clk)) {
280 printk(KERN_ERR "trout_init_panel: could not get gp"
281 "clock\n");
282 gp_clk = NULL;
283 }
284 rc = clk_set_rate(gp_clk, 19200000);
285 if (rc)
286 printk(KERN_ERR "trout_init_panel: set clock rate "
287 "failed\n");
288 }
289
290 rc = platform_device_register(&msm_device_mdp);
291 if (rc)
292 return rc;
293 msm_device_mddi0.dev.platform_data = &mddi_pdata;
294 return platform_device_register(&msm_device_mddi0);
295 }
296
297 device_initcall(trout_init_panel);
298