70a0f60329
Panda's DVI connector's DDC pins are connected to OMAP's third i2c bus. With non-DT, the bus number was 3, and that is what is used in the dss-common.c which contains the platform data for Panda's DVI. However, with DT, the bus number is 2. As we now only have DT boot for Panda, we have to change the bus number to make DVI EDID read operational. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
252 lines
6.5 KiB
C
252 lines
6.5 KiB
C
/*
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* Copyright (C) 2012 Texas Instruments, Inc..
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* Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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/*
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* NOTE: this is a transitional file to help with DT adaptation.
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* This file will be removed when DSS supports DT.
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*/
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#include <linux/kernel.h>
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#include <linux/gpio.h>
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#include <video/omapdss.h>
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#include <video/omap-panel-data.h>
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#include "soc.h"
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#include "dss-common.h"
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#include "mux.h"
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#define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
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#define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
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#define HDMI_GPIO_HPD 63 /* Hotplug detect */
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/* Display DVI */
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#define PANDA_DVI_TFP410_POWER_DOWN_GPIO 0
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/* Using generic display panel */
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static struct tfp410_platform_data omap4_dvi_panel = {
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.i2c_bus_num = 2,
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.power_down_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
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};
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static struct omap_dss_device omap4_panda_dvi_device = {
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.type = OMAP_DISPLAY_TYPE_DPI,
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.name = "dvi",
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.driver_name = "tfp410",
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.data = &omap4_dvi_panel,
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.phy.dpi.data_lines = 24,
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.channel = OMAP_DSS_CHANNEL_LCD2,
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};
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static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
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.ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
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.ls_oe_gpio = HDMI_GPIO_LS_OE,
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.hpd_gpio = HDMI_GPIO_HPD,
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};
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static struct omap_dss_device omap4_panda_hdmi_device = {
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.name = "hdmi",
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.driver_name = "hdmi_panel",
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.type = OMAP_DISPLAY_TYPE_HDMI,
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.channel = OMAP_DSS_CHANNEL_DIGIT,
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.data = &omap4_panda_hdmi_data,
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};
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static struct omap_dss_device *omap4_panda_dss_devices[] = {
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&omap4_panda_dvi_device,
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&omap4_panda_hdmi_device,
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};
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static struct omap_dss_board_info omap4_panda_dss_data = {
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.num_devices = ARRAY_SIZE(omap4_panda_dss_devices),
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.devices = omap4_panda_dss_devices,
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.default_device = &omap4_panda_dvi_device,
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};
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void __init omap4_panda_display_init(void)
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{
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omap_display_init(&omap4_panda_dss_data);
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/*
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* OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
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* later have external pull up on the HDMI I2C lines
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*/
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if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
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omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
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else
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omap_hdmi_init(0);
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omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
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omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
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omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
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}
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void __init omap4_panda_display_init_of(void)
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{
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omap_display_init(&omap4_panda_dss_data);
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}
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/* OMAP4 Blaze display data */
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#define DISPLAY_SEL_GPIO 59 /* LCD2/PicoDLP switch */
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#define DLP_POWER_ON_GPIO 40
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static struct nokia_dsi_panel_data dsi1_panel = {
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.name = "taal",
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.reset_gpio = 102,
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.use_ext_te = false,
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.ext_te_gpio = 101,
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.esd_interval = 0,
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.pin_config = {
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.num_pins = 6,
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.pins = { 0, 1, 2, 3, 4, 5 },
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},
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};
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static struct omap_dss_device sdp4430_lcd_device = {
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.name = "lcd",
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.driver_name = "taal",
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.type = OMAP_DISPLAY_TYPE_DSI,
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.data = &dsi1_panel,
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.phy.dsi = {
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.module = 0,
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},
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.channel = OMAP_DSS_CHANNEL_LCD,
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};
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static struct nokia_dsi_panel_data dsi2_panel = {
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.name = "taal",
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.reset_gpio = 104,
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.use_ext_te = false,
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.ext_te_gpio = 103,
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.esd_interval = 0,
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.pin_config = {
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.num_pins = 6,
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.pins = { 0, 1, 2, 3, 4, 5 },
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},
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};
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static struct omap_dss_device sdp4430_lcd2_device = {
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.name = "lcd2",
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.driver_name = "taal",
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.type = OMAP_DISPLAY_TYPE_DSI,
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.data = &dsi2_panel,
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.phy.dsi = {
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.module = 1,
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},
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.channel = OMAP_DSS_CHANNEL_LCD2,
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};
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static struct omap_dss_hdmi_data sdp4430_hdmi_data = {
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.ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
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.ls_oe_gpio = HDMI_GPIO_LS_OE,
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.hpd_gpio = HDMI_GPIO_HPD,
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};
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static struct omap_dss_device sdp4430_hdmi_device = {
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.name = "hdmi",
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.driver_name = "hdmi_panel",
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.type = OMAP_DISPLAY_TYPE_HDMI,
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.channel = OMAP_DSS_CHANNEL_DIGIT,
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.data = &sdp4430_hdmi_data,
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};
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static struct picodlp_panel_data sdp4430_picodlp_pdata = {
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.picodlp_adapter_id = 2,
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.emu_done_gpio = 44,
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.pwrgood_gpio = 45,
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};
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static struct omap_dss_device sdp4430_picodlp_device = {
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.name = "picodlp",
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.driver_name = "picodlp_panel",
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.type = OMAP_DISPLAY_TYPE_DPI,
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.phy.dpi.data_lines = 24,
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.channel = OMAP_DSS_CHANNEL_LCD2,
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.data = &sdp4430_picodlp_pdata,
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};
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static struct omap_dss_device *sdp4430_dss_devices[] = {
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&sdp4430_lcd_device,
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&sdp4430_lcd2_device,
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&sdp4430_hdmi_device,
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&sdp4430_picodlp_device,
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};
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static struct omap_dss_board_info sdp4430_dss_data = {
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.num_devices = ARRAY_SIZE(sdp4430_dss_devices),
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.devices = sdp4430_dss_devices,
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.default_device = &sdp4430_lcd_device,
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};
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/*
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* we select LCD2 by default (instead of Pico DLP) by setting DISPLAY_SEL_GPIO.
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* Setting DLP_POWER_ON gpio enables the VDLP_2V5 VDLP_1V8 and VDLP_1V0 rails
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* used by picodlp on the 4430sdp platform. Keep this gpio disabled as LCD2 is
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* selected by default
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*/
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void __init omap_4430sdp_display_init(void)
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{
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int r;
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r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
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"display_sel");
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if (r)
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pr_err("%s: Could not get display_sel GPIO\n", __func__);
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r = gpio_request_one(DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
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"DLP POWER ON");
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if (r)
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pr_err("%s: Could not get DLP POWER ON GPIO\n", __func__);
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omap_display_init(&sdp4430_dss_data);
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/*
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* OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
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* later have external pull up on the HDMI I2C lines
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*/
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if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
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omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
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else
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omap_hdmi_init(0);
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omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
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omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
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omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
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}
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void __init omap_4430sdp_display_init_of(void)
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{
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int r;
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r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
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"display_sel");
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if (r)
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pr_err("%s: Could not get display_sel GPIO\n", __func__);
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r = gpio_request_one(DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
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"DLP POWER ON");
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if (r)
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pr_err("%s: Could not get DLP POWER ON GPIO\n", __func__);
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omap_display_init(&sdp4430_dss_data);
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}
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