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-data.h>
  31
  32 #include "soc.h"
  33 #include "dss-common.h"
  34 #include "mux.h"
  35
  36 #define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
  37 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
  38 #define HDMI_GPIO_HPD  63 /* Hotplug detect */
  39
  40 /* Display DVI */
  41 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO        0
  42
  43 /* Using generic display panel */
  44 static struct tfp410_platform_data omap4_dvi_panel = {
  45         .i2c_bus_num            = 3,
  46         .power_down_gpio        = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
  47 };
  48
  49 static struct omap_dss_device omap4_panda_dvi_device = {
  50         .type                   = OMAP_DISPLAY_TYPE_DPI,
  51         .name                   = "dvi",
  52         .driver_name            = "tfp410",
  53         .data                   = &omap4_dvi_panel,
  54         .phy.dpi.data_lines     = 24,
  55         .channel                = OMAP_DSS_CHANNEL_LCD2,
  56 };
  57
  58 static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
  59         .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
  60         .ls_oe_gpio = HDMI_GPIO_LS_OE,
  61         .hpd_gpio = HDMI_GPIO_HPD,
  62 };
  63
  64 static struct omap_dss_device  omap4_panda_hdmi_device = {
  65         .name = "hdmi",
  66         .driver_name = "hdmi_panel",
  67         .type = OMAP_DISPLAY_TYPE_HDMI,
  68         .channel = OMAP_DSS_CHANNEL_DIGIT,
  69         .data = &omap4_panda_hdmi_data,
  70 };
  71
  72 static struct omap_dss_device *omap4_panda_dss_devices[] = {
  73         &omap4_panda_dvi_device,
  74         &omap4_panda_hdmi_device,
  75 };
  76
  77 static struct omap_dss_board_info omap4_panda_dss_data = {
  78         .num_devices    = ARRAY_SIZE(omap4_panda_dss_devices),
  79         .devices        = omap4_panda_dss_devices,
  80         .default_device = &omap4_panda_dvi_device,
  81 };
  82
  83 void __init omap4_panda_display_init(void)
  84 {
  85         omap_display_init(&omap4_panda_dss_data);
  86
  87         /*
  88          * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
  89          * later have external pull up on the HDMI I2C lines
  90          */
  91         if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
  92                 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
  93         else
  94                 omap_hdmi_init(0);
  95
  96         omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
  97         omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
  98         omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
  99 }
 100
 101 void __init omap4_panda_display_init_of(void)
 102 {
 103         omap_display_init(&omap4_panda_dss_data);
 104 }
 105
 106
 107 /* OMAP4 Blaze display data */
 108
 109 #define DISPLAY_SEL_GPIO        59      /* LCD2/PicoDLP switch */
 110 #define DLP_POWER_ON_GPIO       40
 111
 112 static struct nokia_dsi_panel_data dsi1_panel = {
 113                 .name           = "taal",
 114                 .reset_gpio     = 102,
 115                 .use_ext_te     = false,
 116                 .ext_te_gpio    = 101,
 117                 .esd_interval   = 0,
 118                 .pin_config = {
 119                         .num_pins       = 6,
 120                         .pins           = { 0, 1, 2, 3, 4, 5 },
 121                 },
 122 };
 123
 124 static struct omap_dss_device sdp4430_lcd_device = {
 125         .name                   = "lcd",
 126         .driver_name            = "taal",
 127         .type                   = OMAP_DISPLAY_TYPE_DSI,
 128         .data                   = &dsi1_panel,
 129         .phy.dsi                = {
 130                 .module         = 0,
 131         },
 132         .channel                = OMAP_DSS_CHANNEL_LCD,
 133 };
 134
 135 static struct nokia_dsi_panel_data dsi2_panel = {
 136                 .name           = "taal",
 137                 .reset_gpio     = 104,
 138                 .use_ext_te     = false,
 139                 .ext_te_gpio    = 103,
 140                 .esd_interval   = 0,
 141                 .pin_config = {
 142                         .num_pins       = 6,
 143                         .pins           = { 0, 1, 2, 3, 4, 5 },
 144                 },
 145 };
 146
 147 static struct omap_dss_device sdp4430_lcd2_device = {
 148         .name                   = "lcd2",
 149         .driver_name            = "taal",
 150         .type                   = OMAP_DISPLAY_TYPE_DSI,
 151         .data                   = &dsi2_panel,
 152         .phy.dsi                = {
 153
 154                 .module         = 1,
 155         },
 156         .channel                = OMAP_DSS_CHANNEL_LCD2,
 157 };
 158
 159 static struct omap_dss_hdmi_data sdp4430_hdmi_data = {
 160         .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
 161         .ls_oe_gpio = HDMI_GPIO_LS_OE,
 162         .hpd_gpio = HDMI_GPIO_HPD,
 163 };
 164
 165 static struct omap_dss_device sdp4430_hdmi_device = {
 166         .name = "hdmi",
 167         .driver_name = "hdmi_panel",
 168         .type = OMAP_DISPLAY_TYPE_HDMI,
 169         .channel = OMAP_DSS_CHANNEL_DIGIT,
 170         .data = &sdp4430_hdmi_data,
 171 };
 172
 173 static struct picodlp_panel_data sdp4430_picodlp_pdata = {
 174         .picodlp_adapter_id     = 2,
 175         .emu_done_gpio          = 44,
 176         .pwrgood_gpio           = 45,
 177 };
 178
 179 static struct omap_dss_device sdp4430_picodlp_device = {
 180         .name                   = "picodlp",
 181         .driver_name            = "picodlp_panel",
 182         .type                   = OMAP_DISPLAY_TYPE_DPI,
 183         .phy.dpi.data_lines     = 24,
 184         .channel                = OMAP_DSS_CHANNEL_LCD2,
 185         .data                   = &sdp4430_picodlp_pdata,
 186 };
 187
 188 static struct omap_dss_device *sdp4430_dss_devices[] = {
 189         &sdp4430_lcd_device,
 190         &sdp4430_lcd2_device,
 191         &sdp4430_hdmi_device,
 192         &sdp4430_picodlp_device,
 193 };
 194
 195 static struct omap_dss_board_info sdp4430_dss_data = {
 196         .num_devices    = ARRAY_SIZE(sdp4430_dss_devices),
 197         .devices        = sdp4430_dss_devices,
 198         .default_device = &sdp4430_lcd_device,
 199 };
 200
 201 /*
 202  * we select LCD2 by default (instead of Pico DLP) by setting DISPLAY_SEL_GPIO.
 203  * Setting DLP_POWER_ON gpio enables the VDLP_2V5 VDLP_1V8 and VDLP_1V0 rails
 204  * used by picodlp on the 4430sdp platform. Keep this gpio disabled as LCD2 is
 205  * selected by default
 206  */
 207 void __init omap_4430sdp_display_init(void)
 208 {
 209         int r;
 210
 211         r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
 212                         "display_sel");
 213         if (r)
 214                 pr_err("%s: Could not get display_sel GPIO\n", __func__);
 215
 216         r = gpio_request_one(DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
 217                 "DLP POWER ON");
 218         if (r)
 219                 pr_err("%s: Could not get DLP POWER ON GPIO\n", __func__);
 220
 221         omap_display_init(&sdp4430_dss_data);
 222         /*
 223          * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
 224          * later have external pull up on the HDMI I2C lines
 225          */
 226         if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
 227                 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
 228         else
 229                 omap_hdmi_init(0);
 230
 231         omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
 232         omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
 233         omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
 234 }
 235
 236 void __init omap_4430sdp_display_init_of(void)
 237 {
 238         int r;
 239
 240         r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
 241                         "display_sel");
 242         if (r)
 243                 pr_err("%s: Could not get display_sel GPIO\n", __func__);
 244
 245         r = gpio_request_one(DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
 246                 "DLP POWER ON");
 247         if (r)
 248                 pr_err("%s: Could not get DLP POWER ON GPIO\n", __func__);
 249
 250         omap_display_init(&sdp4430_dss_data);
 251 }