Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 1 | /* |
Duy Truong | f3ac7b3 | 2013-02-13 01:07:28 -0800 | [diff] [blame] | 2 | * Copyright (c) 2011, The Linux Foundation. All rights reserved. |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * * Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * * Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in |
| 11 | * the documentation and/or other materials provided with the |
| 12 | * distribution. |
Duy Truong | f3ac7b3 | 2013-02-13 01:07:28 -0800 | [diff] [blame] | 13 | * * Neither the name of The Linux Foundation nor |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 14 | * the names of its contributors may be used to endorse or promote |
| 15 | * products derived from this software without specific prior written |
| 16 | * permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 22 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 25 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 28 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <debug.h> |
| 33 | #include <dev/gpio.h> |
| 34 | #include <kernel/thread.h> |
| 35 | #include "gpio_hw.h" |
| 36 | #include "panel.h" |
| 37 | #include <dev/lcdc.h> |
| 38 | |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 39 | #define VEE_RESET 20 |
| 40 | #define LCD_RESET 180 |
| 41 | |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 42 | #define GPIO26_GPIO_CNTRL 0x169 /* backlight */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 43 | |
| 44 | struct sharp_spi_data { |
| 45 | unsigned addr; |
| 46 | unsigned data; |
| 47 | }; |
| 48 | |
| 49 | static struct sharp_spi_data init_sequence[] = { |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 50 | {15, 0x01}, |
| 51 | {5, 0x01}, |
| 52 | {7, 0x10}, |
| 53 | {9, 0x1E}, |
| 54 | {10, 0x04}, |
| 55 | {17, 0xFF}, |
| 56 | {21, 0x8A}, |
| 57 | {22, 0x00}, |
| 58 | {23, 0x82}, |
| 59 | {24, 0x24}, |
| 60 | {25, 0x22}, |
| 61 | {26, 0x6D}, |
| 62 | {27, 0xEB}, |
| 63 | {28, 0xB9}, |
| 64 | {29, 0x3A}, |
| 65 | {49, 0x1A}, |
| 66 | {50, 0x16}, |
| 67 | {51, 0x05}, |
| 68 | {55, 0x7F}, |
| 69 | {56, 0x15}, |
| 70 | {57, 0x7B}, |
| 71 | {60, 0x05}, |
| 72 | {61, 0x0C}, |
| 73 | {62, 0x80}, |
| 74 | {63, 0x00}, |
| 75 | {92, 0x90}, |
| 76 | {97, 0x01}, |
| 77 | {98, 0xFF}, |
| 78 | {113, 0x11}, |
| 79 | {114, 0x02}, |
| 80 | {115, 0x08}, |
| 81 | {123, 0xAB}, |
| 82 | {124, 0x04}, |
| 83 | {6, 0x02}, |
| 84 | {133, 0x00}, |
| 85 | {134, 0xFE}, |
| 86 | {135, 0x22}, |
| 87 | {136, 0x0B}, |
| 88 | {137, 0xFF}, |
| 89 | {138, 0x0F}, |
| 90 | {139, 0x00}, |
| 91 | {140, 0xFE}, |
| 92 | {141, 0x22}, |
| 93 | {142, 0x0B}, |
| 94 | {143, 0xFF}, |
| 95 | {144, 0x0F}, |
| 96 | {145, 0x00}, |
| 97 | {146, 0xFE}, |
| 98 | {147, 0x22}, |
| 99 | {148, 0x0B}, |
| 100 | {149, 0xFF}, |
| 101 | {150, 0x0F}, |
| 102 | {202, 0x30}, |
| 103 | {30, 0x01}, |
| 104 | {4, 0x01}, |
| 105 | {31, 0x41} |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 106 | }; |
| 107 | |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 108 | static unsigned char bit_shift[8] = { (1 << 7), /* MSB */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 109 | (1 << 6), |
| 110 | (1 << 5), |
| 111 | (1 << 4), |
| 112 | (1 << 3), |
| 113 | (1 << 2), |
| 114 | (1 << 1), |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 115 | (1 << 0) /* LSB */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 116 | }; |
| 117 | |
| 118 | static unsigned vee_reset_gpio = |
| 119 | GPIO_CFG(VEE_RESET, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA); |
| 120 | |
| 121 | static unsigned lcd_reset_gpio = |
| 122 | GPIO_CFG(LCD_RESET, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA); |
| 123 | |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 124 | static int sharp_display_common_power(int on) |
| 125 | { |
| 126 | int rc = 0, flag_on = !!on; |
| 127 | static int display_common_power_save_on; |
| 128 | unsigned int vreg_ldo12, vreg_ldo15, vreg_ldo20, vreg_ldo16, vreg_ldo8; |
| 129 | if (display_common_power_save_on == flag_on) |
| 130 | return 0; |
| 131 | |
| 132 | display_common_power_save_on = flag_on; |
| 133 | |
| 134 | if (on) { |
| 135 | /* set LCD reset */ |
| 136 | rc = gpio_tlmm_config(lcd_reset_gpio, GPIO_ENABLE); |
| 137 | if (rc) { |
| 138 | return rc; |
| 139 | } |
| 140 | |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 141 | gpio_set(LCD_RESET, 0); /* bring reset line low to hold reset */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 142 | |
| 143 | /* set VEE reset */ |
| 144 | rc = gpio_tlmm_config(vee_reset_gpio, GPIO_ENABLE); |
| 145 | |
| 146 | if (rc) { |
| 147 | return rc; |
| 148 | } |
| 149 | |
| 150 | gpio_set(VEE_RESET, 1); |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 151 | gpio_set(VEE_RESET, 0); /* bring reset line low to hold reset */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 152 | mdelay(10); |
| 153 | } |
| 154 | |
| 155 | /* Set LD008 to 1.8V - VEE (VCC, VDDIO, pullups) */ |
| 156 | pmic_write(LDO08_CNTRL, 0x06 | LDO_LOCAL_EN_BMSK); |
| 157 | |
| 158 | /* Set LD012 to 1.8V - display (VDDIO) */ |
| 159 | pmic_write(LDO12_CNTRL, 0x06 | LDO_LOCAL_EN_BMSK); |
| 160 | |
| 161 | /* Set LD015 to 3.0V - display (VCC), VEE (VLP) */ |
| 162 | pmic_write(LDO15_CNTRL, 0x1E | LDO_LOCAL_EN_BMSK); |
| 163 | |
| 164 | /* wait for power to stabilize */ |
| 165 | mdelay(10); |
| 166 | |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 167 | gpio_config(VEE_RESET, 0); /*disable VEE_RESET, rely on pullups to bring it high */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 168 | mdelay(5); |
| 169 | |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 170 | gpio_set(LCD_RESET, 1); /* bring reset line high */ |
| 171 | mdelay(10); /* 10 msec before IO can be accessed */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 172 | |
| 173 | return rc; |
| 174 | } |
| 175 | |
| 176 | static struct msm_gpio sharp_lcd_panel_gpios[] = { |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 177 | {GPIO_CFG(45, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "spi_clk"}, |
| 178 | {GPIO_CFG(46, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "spi_cs0"}, |
| 179 | {GPIO_CFG(47, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "spi_mosi"}, |
| 180 | {GPIO_CFG(48, 0, GPIO_INPUT, GPIO_NO_PULL, GPIO_2MA), "spi_miso"}, |
| 181 | {GPIO_CFG(22, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_blu2"}, |
| 182 | {GPIO_CFG(25, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_red2"}, |
| 183 | {GPIO_CFG(90, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_pclk"}, |
| 184 | {GPIO_CFG(91, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_en"}, |
| 185 | {GPIO_CFG(92, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_vsync"}, |
| 186 | {GPIO_CFG(93, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_hsync"}, |
| 187 | {GPIO_CFG(94, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_grn2"}, |
| 188 | {GPIO_CFG(95, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_grn3"}, |
| 189 | {GPIO_CFG(96, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_grn4"}, |
| 190 | {GPIO_CFG(97, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_grn5"}, |
| 191 | {GPIO_CFG(98, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_grn6"}, |
| 192 | {GPIO_CFG(99, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_grn7"}, |
| 193 | {GPIO_CFG(100, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_blu3"}, |
| 194 | {GPIO_CFG(101, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_blu4"}, |
| 195 | {GPIO_CFG(102, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_blu5"}, |
| 196 | {GPIO_CFG(103, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_blu6"}, |
| 197 | {GPIO_CFG(104, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_blu7"}, |
| 198 | {GPIO_CFG(105, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_red3"}, |
| 199 | {GPIO_CFG(106, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_red4"}, |
| 200 | {GPIO_CFG(107, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_red5"}, |
| 201 | {GPIO_CFG(108, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA), "lcdc_red6"}, |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 202 | }; |
| 203 | |
| 204 | int sharp_lcdc_panel_power(int on) |
| 205 | { |
| 206 | int rc, i; |
| 207 | struct msm_gpio *gp; |
| 208 | |
| 209 | rc = sharp_display_common_power(on); |
| 210 | if (rc < 0) { |
| 211 | return rc; |
| 212 | } |
| 213 | |
| 214 | if (on) { |
| 215 | rc = platform_gpios_enable(sharp_lcd_panel_gpios, |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 216 | ARRAY_SIZE(sharp_lcd_panel_gpios)); |
| 217 | if (rc) { |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 218 | return rc; |
| 219 | } |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 220 | } else { /* off */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 221 | gp = sharp_lcd_panel_gpios; |
| 222 | for (i = 0; i < ARRAY_SIZE(sharp_lcd_panel_gpios); i++) { |
| 223 | /* ouput low */ |
| 224 | gpio_set(GPIO_PIN(gp->gpio_cfg), 0); |
| 225 | gp++; |
| 226 | } |
| 227 | } |
| 228 | return rc; |
| 229 | } |
| 230 | |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 231 | static void sharp_spi_write_byte(unsigned val) |
| 232 | { |
| 233 | int i; |
| 234 | |
| 235 | /* Clock should be Low before entering */ |
| 236 | for (i = 0; i < 8; i++) { |
| 237 | /* #1: Drive the Data (High or Low) */ |
| 238 | if (val & bit_shift[i]) |
| 239 | gpio_set(SPI_MOSI, 1); |
| 240 | else |
| 241 | gpio_set(SPI_MOSI, 0); |
| 242 | |
| 243 | /* #2: Drive the Clk High and then Low */ |
| 244 | gpio_set(SPI_SCLK, 1); |
| 245 | gpio_set(SPI_SCLK, 0); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | static int serigo(unsigned reg, unsigned data) |
| 250 | { |
| 251 | /* Enable the Chip Select - low */ |
| 252 | gpio_set(SPI_CS, 0); |
| 253 | udelay(1); |
| 254 | |
| 255 | /* Transmit register address first, then data */ |
| 256 | sharp_spi_write_byte(reg); |
| 257 | |
| 258 | /* Idle state of MOSI is Low */ |
| 259 | gpio_set(SPI_MOSI, 0); |
| 260 | udelay(1); |
| 261 | sharp_spi_write_byte(data); |
| 262 | |
| 263 | gpio_set(SPI_MOSI, 0); |
| 264 | gpio_set(SPI_CS, 1); |
| 265 | return 0; |
| 266 | } |
| 267 | |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 268 | void sharp_lcdc_disp_on(void) |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 269 | { |
| 270 | unsigned i; |
| 271 | gpio_set(SPI_CS, 1); |
| 272 | gpio_set(SPI_SCLK, 1); |
| 273 | gpio_set(SPI_MOSI, 0); |
| 274 | gpio_set(SPI_MISO, 0); |
| 275 | |
| 276 | for (i = 0; i < ARRAY_SIZE(init_sequence); i++) { |
| 277 | serigo(init_sequence[i].addr, init_sequence[i].data); |
| 278 | } |
| 279 | mdelay(10); |
| 280 | serigo(31, 0xC1); |
| 281 | mdelay(10); |
| 282 | serigo(31, 0xD9); |
| 283 | serigo(31, 0xDF); |
| 284 | } |
| 285 | |
| 286 | void sharp_lcdc_on(void) |
| 287 | { |
| 288 | lcdc_clock_init(27648000); |
| 289 | sharp_lcdc_panel_power(1); |
| 290 | |
| 291 | /*enable backlight, open up gpio, use default for LPG */ |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 292 | pmic_write(GPIO26_GPIO_CNTRL, 0x81); /* Write, Bank0, VIN0=VPH, Mode selection enabled */ |
| 293 | pmic_write(GPIO26_GPIO_CNTRL, 0x99); /* Write, Bank1, OutOn/InOff, CMOS, Invert Output (GPIO High) */ |
| 294 | pmic_write(GPIO26_GPIO_CNTRL, 0xAA); /* Write, Bank2, GPIO no pull */ |
| 295 | pmic_write(GPIO26_GPIO_CNTRL, 0xB4); /* Write, Bank3, high drv strength */ |
| 296 | pmic_write(GPIO26_GPIO_CNTRL, 0xC6); /* Write, Bank4, Src: Special Function 2 */ |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 297 | |
| 298 | sharp_lcdc_disp_on(); |
| 299 | } |
| 300 | |
| 301 | static struct lcdc_timing_parameters param = { |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 302 | .lcdc_fb_width = 480, |
| 303 | .lcdc_fb_height = 800, |
| 304 | .lcdc_hsync_pulse_width_dclk = 10, |
| 305 | .lcdc_hsync_back_porch_dclk = 20, |
| 306 | .lcdc_hsync_front_porch_dclk = 10, |
| 307 | .lcdc_hsync_skew_dclk = 0, |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 308 | |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 309 | .lcdc_vsync_pulse_width_lines = 2, |
| 310 | .lcdc_vsync_back_porch_lines = 2, |
| 311 | .lcdc_vsync_front_porch_lines = 2, |
Wentao Xu | 97df7fd | 2011-01-19 15:01:17 -0500 | [diff] [blame] | 312 | }; |
| 313 | |
| 314 | struct lcdc_timing_parameters *sharp_timing_param() |
| 315 | { |
| 316 | return ¶m; |
| 317 | } |