arch/arm/mach-omap2/dss-common.c

   1 /*
   2  * Copyright (C) 2012 Texas Instruments, Inc..
   3  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * version 2 as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  17  * 02110-1301 USA
  18  *
  19  */
  20
  21 /*
  22  * NOTE: this is a transitional file to help with DT adaptation.
  23  * This file will be removed when DSS supports DT.
  24  */
  25
  26 #include <linux/kernel.h>
  27 #include <linux/gpio.h>
  28
  29 #include <video/omapdss.h>
  30 #include <video/omap-panel-tfp410.h>
  31 #include <video/omap-panel-nokia-dsi.h>
  32 #include <video/omap-panel-picodlp.h>
  33
  34 #include <plat/cpu.h>
  35
  36 #include "dss-common.h"
  37 #include "mux.h"
  38
  39 #define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
  40 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
  41 #define HDMI_GPIO_HPD  63 /* Hotplug detect */
  42
  43 /* Display DVI */
  44 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO        0
  45
  46 /* Using generic display panel */
  47 static struct tfp410_platform_data omap4_dvi_panel = {
  48         .i2c_bus_num            = 3,
  49         .power_down_gpio        = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
  50 };
  51
  52 static struct omap_dss_device omap4_panda_dvi_device = {
  53         .type                   = OMAP_DISPLAY_TYPE_DPI,
  54         .name                   = "dvi",
  55         .driver_name            = "tfp410",
  56         .data                   = &omap4_dvi_panel,
  57         .phy.dpi.data_lines     = 24,
  58         .reset_gpio             = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
  59         .channel                = OMAP_DSS_CHANNEL_LCD2,
  60 };
  61
  62 static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
  63         .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
  64         .ls_oe_gpio = HDMI_GPIO_LS_OE,
  65         .hpd_gpio = HDMI_GPIO_HPD,
  66 };
  67
  68 static struct omap_dss_device  omap4_panda_hdmi_device = {
  69         .name = "hdmi",
  70         .driver_name = "hdmi_panel",
  71         .type = OMAP_DISPLAY_TYPE_HDMI,
  72         .channel = OMAP_DSS_CHANNEL_DIGIT,
  73         .data = &omap4_panda_hdmi_data,
  74 };
  75
  76 static struct omap_dss_device *omap4_panda_dss_devices[] = {
  77         &omap4_panda_dvi_device,
  78         &omap4_panda_hdmi_device,
  79 };
  80
  81 static struct omap_dss_board_info omap4_panda_dss_data = {
  82         .num_devices    = ARRAY_SIZE(omap4_panda_dss_devices),
  83         .devices        = omap4_panda_dss_devices,
  84         .default_device = &omap4_panda_dvi_device,
  85 };
  86
  87 void __init omap4_panda_display_init(void)
  88 {
  89         omap_display_init(&omap4_panda_dss_data);
  90
  91         /*
  92          * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
  93          * later have external pull up on the HDMI I2C lines
  94          */
  95         if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
  96                 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
  97         else
  98                 omap_hdmi_init(0);
  99
 100         omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
 101         omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
 102         omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
 103 }
 104
 105 void __init omap4_panda_display_init_of(void)
 106 {
 107         omap_display_init(&omap4_panda_dss_data);
 108 }
 109
 110
 111 /* OMAP4 Blaze display data */
 112
 113 #define DISPLAY_SEL_GPIO        59      /* LCD2/PicoDLP switch */
 114 #define DLP_POWER_ON_GPIO       40
 115
 116 static struct nokia_dsi_panel_data dsi1_panel = {
 117                 .name           = "taal",
 118                 .reset_gpio     = 102,
 119                 .use_ext_te     = false,
 120                 .ext_te_gpio    = 101,
 121                 .esd_interval   = 0,
 122                 .pin_config = {
 123                         .num_pins       = 6,
 124                         .pins           = { 0, 1, 2, 3, 4, 5 },
 125                 },
 126 };
 127
 128 static struct omap_dss_device sdp4430_lcd_device = {
 129         .name                   = "lcd",
 130         .driver_name            = "taal",
 131         .type                   = OMAP_DISPLAY_TYPE_DSI,
 132         .data                   = &dsi1_panel,
 133         .phy.dsi                = {
 134                 .module         = 0,
 135         },
 136         .channel                = OMAP_DSS_CHANNEL_LCD,
 137 };
 138
 139 static struct nokia_dsi_panel_data dsi2_panel = {
 140                 .name           = "taal",
 141                 .reset_gpio     = 104,
 142                 .use_ext_te     = false,
 143                 .ext_te_gpio    = 103,
 144                 .esd_interval   = 0,
 145                 .pin_config = {
 146                         .num_pins       = 6,
 147                         .pins           = { 0, 1, 2, 3, 4, 5 },
 148                 },
 149 };
 150
 151 static struct omap_dss_device sdp4430_lcd2_device = {
 152         .name                   = "lcd2",
 153         .driver_name            = "taal",
 154         .type                   = OMAP_DISPLAY_TYPE_DSI,
 155         .data                   = &dsi2_panel,
 156         .phy.dsi                = {
 157
 158                 .module         = 1,
 159         },
 160         .channel                = OMAP_DSS_CHANNEL_LCD2,
 161 };
 162
 163 static struct omap_dss_hdmi_data sdp4430_hdmi_data = {
 164         .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
 165         .ls_oe_gpio = HDMI_GPIO_LS_OE,
 166         .hpd_gpio = HDMI_GPIO_HPD,
 167 };
 168
 169 static struct omap_dss_device sdp4430_hdmi_device = {
 170         .name = "hdmi",
 171         .driver_name = "hdmi_panel",
 172         .type = OMAP_DISPLAY_TYPE_HDMI,
 173         .channel = OMAP_DSS_CHANNEL_DIGIT,
 174         .data = &sdp4430_hdmi_data,
 175 };
 176
 177 static struct picodlp_panel_data sdp4430_picodlp_pdata = {
 178         .picodlp_adapter_id     = 2,
 179         .emu_done_gpio          = 44,
 180         .pwrgood_gpio           = 45,
 181 };
 182
 183 static void sdp4430_picodlp_init(void)
 184 {
 185         int r;
 186         const struct gpio picodlp_gpios[] = {
 187                 {DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
 188                         "DLP POWER ON"},
 189                 {sdp4430_picodlp_pdata.emu_done_gpio, GPIOF_IN,
 190                         "DLP EMU DONE"},
 191                 {sdp4430_picodlp_pdata.pwrgood_gpio, GPIOF_OUT_INIT_LOW,
 192                         "DLP PWRGOOD"},
 193         };
 194
 195         r = gpio_request_array(picodlp_gpios, ARRAY_SIZE(picodlp_gpios));
 196         if (r)
 197                 pr_err("Cannot request PicoDLP GPIOs, error %d\n", r);
 198 }
 199
 200 static int sdp4430_panel_enable_picodlp(struct omap_dss_device *dssdev)
 201 {
 202         gpio_set_value(DISPLAY_SEL_GPIO, 0);
 203         gpio_set_value(DLP_POWER_ON_GPIO, 1);
 204
 205         return 0;
 206 }
 207
 208 static void sdp4430_panel_disable_picodlp(struct omap_dss_device *dssdev)
 209 {
 210         gpio_set_value(DLP_POWER_ON_GPIO, 0);
 211         gpio_set_value(DISPLAY_SEL_GPIO, 1);
 212 }
 213
 214 static struct omap_dss_device sdp4430_picodlp_device = {
 215         .name                   = "picodlp",
 216         .driver_name            = "picodlp_panel",
 217         .type                   = OMAP_DISPLAY_TYPE_DPI,
 218         .phy.dpi.data_lines     = 24,
 219         .channel                = OMAP_DSS_CHANNEL_LCD2,
 220         .platform_enable        = sdp4430_panel_enable_picodlp,
 221         .platform_disable       = sdp4430_panel_disable_picodlp,
 222         .data                   = &sdp4430_picodlp_pdata,
 223 };
 224
 225 static struct omap_dss_device *sdp4430_dss_devices[] = {
 226         &sdp4430_lcd_device,
 227         &sdp4430_lcd2_device,
 228         &sdp4430_hdmi_device,
 229         &sdp4430_picodlp_device,
 230 };
 231
 232 static struct omap_dss_board_info sdp4430_dss_data = {
 233         .num_devices    = ARRAY_SIZE(sdp4430_dss_devices),
 234         .devices        = sdp4430_dss_devices,
 235         .default_device = &sdp4430_lcd_device,
 236 };
 237
 238 void __init omap_4430sdp_display_init(void)
 239 {
 240         int r;
 241
 242         /* Enable LCD2 by default (instead of Pico DLP) */
 243         r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
 244                         "display_sel");
 245         if (r)
 246                 pr_err("%s: Could not get display_sel GPIO\n", __func__);
 247
 248         sdp4430_picodlp_init();
 249         omap_display_init(&sdp4430_dss_data);
 250         /*
 251          * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
 252          * later have external pull up on the HDMI I2C lines
 253          */
 254         if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
 255                 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
 256         else
 257                 omap_hdmi_init(0);
 258
 259         omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
 260         omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
 261         omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
 262 }
 263
 264 void __init omap_4430sdp_display_init_of(void)
 265 {
 266         int r;
 267
 268         /* Enable LCD2 by default (instead of Pico DLP) */
 269         r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
 270                         "display_sel");
 271         if (r)
 272                 pr_err("%s: Could not get display_sel GPIO\n", __func__);
 273
 274         sdp4430_picodlp_init();
 275         omap_display_init(&sdp4430_dss_data);
 276 }