Pileus Git - ~andy/linux/blob - 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 "soc.h"
  35 #include "dss-common.h"
  36 #include "mux.h"
  37
  38 #define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
  39 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
  40 #define HDMI_GPIO_HPD  63 /* Hotplug detect */
  41
  42 /* Display DVI */
  43 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO        0
  44
  45 /* Using generic display panel */
  46 static struct tfp410_platform_data omap4_dvi_panel = {
  47         .i2c_bus_num            = 3,
  48         .power_down_gpio        = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
  49 };
  50
  51 static struct omap_dss_device omap4_panda_dvi_device = {
  52         .type                   = OMAP_DISPLAY_TYPE_DPI,
  53         .name                   = "dvi",
  54         .driver_name            = "tfp410",
  55         .data                   = &omap4_dvi_panel,
  56         .phy.dpi.data_lines     = 24,
  57         .reset_gpio             = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
  58         .channel                = OMAP_DSS_CHANNEL_LCD2,
  59 };
  60
  61 static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
  62         .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
  63         .ls_oe_gpio = HDMI_GPIO_LS_OE,
  64         .hpd_gpio = HDMI_GPIO_HPD,
  65 };
  66
  67 static struct omap_dss_device  omap4_panda_hdmi_device = {
  68         .name = "hdmi",
  69         .driver_name = "hdmi_panel",
  70         .type = OMAP_DISPLAY_TYPE_HDMI,
  71         .channel = OMAP_DSS_CHANNEL_DIGIT,
  72         .data = &omap4_panda_hdmi_data,
  73 };
  74
  75 static struct omap_dss_device *omap4_panda_dss_devices[] = {
  76         &omap4_panda_dvi_device,
  77         &omap4_panda_hdmi_device,
  78 };
  79
  80 static struct omap_dss_board_info omap4_panda_dss_data = {
  81         .num_devices    = ARRAY_SIZE(omap4_panda_dss_devices),
  82         .devices        = omap4_panda_dss_devices,
  83         .default_device = &omap4_panda_dvi_device,
  84 };
  85
  86 void __init omap4_panda_display_init(void)
  87 {
  88         omap_display_init(&omap4_panda_dss_data);
  89
  90         /*
  91          * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
  92          * later have external pull up on the HDMI I2C lines
  93          */
  94         if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
  95                 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
  96         else
  97                 omap_hdmi_init(0);
  98
  99         omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
 100         omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
 101         omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
 102 }
 103
 104 void __init omap4_panda_display_init_of(void)
 105 {
 106         omap_display_init(&omap4_panda_dss_data);
 107 }
 108
 109
 110 /* OMAP4 Blaze display data */
 111
 112 #define DISPLAY_SEL_GPIO        59      /* LCD2/PicoDLP switch */
 113 #define DLP_POWER_ON_GPIO       40
 114
 115 static struct nokia_dsi_panel_data dsi1_panel = {
 116                 .name           = "taal",
 117                 .reset_gpio     = 102,
 118                 .use_ext_te     = false,
 119                 .ext_te_gpio    = 101,
 120                 .esd_interval   = 0,
 121                 .pin_config = {
 122                         .num_pins       = 6,
 123                         .pins           = { 0, 1, 2, 3, 4, 5 },
 124                 },
 125 };
 126
 127 static struct omap_dss_device sdp4430_lcd_device = {
 128         .name                   = "lcd",
 129         .driver_name            = "taal",
 130         .type                   = OMAP_DISPLAY_TYPE_DSI,
 131         .data                   = &dsi1_panel,
 132         .phy.dsi                = {
 133                 .module         = 0,
 134         },
 135         .channel                = OMAP_DSS_CHANNEL_LCD,
 136 };
 137
 138 static struct nokia_dsi_panel_data dsi2_panel = {
 139                 .name           = "taal",
 140                 .reset_gpio     = 104,
 141                 .use_ext_te     = false,
 142                 .ext_te_gpio    = 103,
 143                 .esd_interval   = 0,
 144                 .pin_config = {
 145                         .num_pins       = 6,
 146                         .pins           = { 0, 1, 2, 3, 4, 5 },
 147                 },
 148 };
 149
 150 static struct omap_dss_device sdp4430_lcd2_device = {
 151         .name                   = "lcd2",
 152         .driver_name            = "taal",
 153         .type                   = OMAP_DISPLAY_TYPE_DSI,
 154         .data                   = &dsi2_panel,
 155         .phy.dsi                = {
 156
 157                 .module         = 1,
 158         },
 159         .channel                = OMAP_DSS_CHANNEL_LCD2,
 160 };
 161
 162 static struct omap_dss_hdmi_data sdp4430_hdmi_data = {
 163         .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
 164         .ls_oe_gpio = HDMI_GPIO_LS_OE,
 165         .hpd_gpio = HDMI_GPIO_HPD,
 166 };
 167
 168 static struct omap_dss_device sdp4430_hdmi_device = {
 169         .name = "hdmi",
 170         .driver_name = "hdmi_panel",
 171         .type = OMAP_DISPLAY_TYPE_HDMI,
 172         .channel = OMAP_DSS_CHANNEL_DIGIT,
 173         .data = &sdp4430_hdmi_data,
 174 };
 175
 176 static struct picodlp_panel_data sdp4430_picodlp_pdata = {
 177         .picodlp_adapter_id     = 2,
 178         .emu_done_gpio          = 44,
 179         .pwrgood_gpio           = 45,
 180 };
 181
 182 static void sdp4430_picodlp_init(void)
 183 {
 184         int r;
 185         const struct gpio picodlp_gpios[] = {
 186                 {DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
 187                         "DLP POWER ON"},
 188                 {sdp4430_picodlp_pdata.emu_done_gpio, GPIOF_IN,
 189                         "DLP EMU DONE"},
 190                 {sdp4430_picodlp_pdata.pwrgood_gpio, GPIOF_OUT_INIT_LOW,
 191                         "DLP PWRGOOD"},
 192         };
 193
 194         r = gpio_request_array(picodlp_gpios, ARRAY_SIZE(picodlp_gpios));
 195         if (r)
 196                 pr_err("Cannot request PicoDLP GPIOs, error %d\n", r);
 197 }
 198
 199 static int sdp4430_panel_enable_picodlp(struct omap_dss_device *dssdev)
 200 {
 201         gpio_set_value(DISPLAY_SEL_GPIO, 0);
 202         gpio_set_value(DLP_POWER_ON_GPIO, 1);
 203
 204         return 0;
 205 }
 206
 207 static void sdp4430_panel_disable_picodlp(struct omap_dss_device *dssdev)
 208 {
 209         gpio_set_value(DLP_POWER_ON_GPIO, 0);
 210         gpio_set_value(DISPLAY_SEL_GPIO, 1);
 211 }
 212
 213 static struct omap_dss_device sdp4430_picodlp_device = {
 214         .name                   = "picodlp",
 215         .driver_name            = "picodlp_panel",
 216         .type                   = OMAP_DISPLAY_TYPE_DPI,
 217         .phy.dpi.data_lines     = 24,
 218         .channel                = OMAP_DSS_CHANNEL_LCD2,
 219         .platform_enable        = sdp4430_panel_enable_picodlp,
 220         .platform_disable       = sdp4430_panel_disable_picodlp,
 221         .data                   = &sdp4430_picodlp_pdata,
 222 };
 223
 224 static struct omap_dss_device *sdp4430_dss_devices[] = {
 225         &sdp4430_lcd_device,
 226         &sdp4430_lcd2_device,
 227         &sdp4430_hdmi_device,
 228         &sdp4430_picodlp_device,
 229 };
 230
 231 static struct omap_dss_board_info sdp4430_dss_data = {
 232         .num_devices    = ARRAY_SIZE(sdp4430_dss_devices),
 233         .devices        = sdp4430_dss_devices,
 234         .default_device = &sdp4430_lcd_device,
 235 };
 236
 237 void __init omap_4430sdp_display_init(void)
 238 {
 239         int r;
 240
 241         /* Enable LCD2 by default (instead of Pico DLP) */
 242         r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
 243                         "display_sel");
 244         if (r)
 245                 pr_err("%s: Could not get display_sel GPIO\n", __func__);
 246
 247         sdp4430_picodlp_init();
 248         omap_display_init(&sdp4430_dss_data);
 249         /*
 250          * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
 251          * later have external pull up on the HDMI I2C lines
 252          */
 253         if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
 254                 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
 255         else
 256                 omap_hdmi_init(0);
 257
 258         omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
 259         omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
 260         omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
 261 }
 262
 263 void __init omap_4430sdp_display_init_of(void)
 264 {
 265         int r;
 266
 267         /* Enable LCD2 by default (instead of Pico DLP) */
 268         r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
 269                         "display_sel");
 270         if (r)
 271                 pr_err("%s: Could not get display_sel GPIO\n", __func__);
 272
 273         sdp4430_picodlp_init();
 274         omap_display_init(&sdp4430_dss_data);
 275 }