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-rw-r--r--arch/arm/mach-omap2/dss-common.c276
1 files changed, 276 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/dss-common.c b/arch/arm/mach-omap2/dss-common.c
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+++ b/arch/arm/mach-omap2/dss-common.c
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+/*
+ * Copyright (C) 2012 Texas Instruments, Inc..
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+/*
+ * NOTE: this is a transitional file to help with DT adaptation.
+ * This file will be removed when DSS supports DT.
+ */
+
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+
+#include <video/omapdss.h>
+#include <video/omap-panel-tfp410.h>
+#include <video/omap-panel-nokia-dsi.h>
+#include <video/omap-panel-picodlp.h>
+
+#include <plat/cpu.h>
+
+#include "dss-common.h"
+#include "mux.h"
+
+#define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
+#define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
+#define HDMI_GPIO_HPD 63 /* Hotplug detect */
+
+/* Display DVI */
+#define PANDA_DVI_TFP410_POWER_DOWN_GPIO 0
+
+/* Using generic display panel */
+static struct tfp410_platform_data omap4_dvi_panel = {
+ .i2c_bus_num = 3,
+ .power_down_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
+};
+
+static struct omap_dss_device omap4_panda_dvi_device = {
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .name = "dvi",
+ .driver_name = "tfp410",
+ .data = &omap4_dvi_panel,
+ .phy.dpi.data_lines = 24,
+ .reset_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
+ .channel = OMAP_DSS_CHANNEL_LCD2,
+};
+
+static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
+ .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
+ .ls_oe_gpio = HDMI_GPIO_LS_OE,
+ .hpd_gpio = HDMI_GPIO_HPD,
+};
+
+static struct omap_dss_device omap4_panda_hdmi_device = {
+ .name = "hdmi",
+ .driver_name = "hdmi_panel",
+ .type = OMAP_DISPLAY_TYPE_HDMI,
+ .channel = OMAP_DSS_CHANNEL_DIGIT,
+ .data = &omap4_panda_hdmi_data,
+};
+
+static struct omap_dss_device *omap4_panda_dss_devices[] = {
+ &omap4_panda_dvi_device,
+ &omap4_panda_hdmi_device,
+};
+
+static struct omap_dss_board_info omap4_panda_dss_data = {
+ .num_devices = ARRAY_SIZE(omap4_panda_dss_devices),
+ .devices = omap4_panda_dss_devices,
+ .default_device = &omap4_panda_dvi_device,
+};
+
+void __init omap4_panda_display_init(void)
+{
+ omap_display_init(&omap4_panda_dss_data);
+
+ /*
+ * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
+ * later have external pull up on the HDMI I2C lines
+ */
+ if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
+ omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
+ else
+ omap_hdmi_init(0);
+
+ omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
+ omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
+ omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
+}
+
+void __init omap4_panda_display_init_of(void)
+{
+ omap_display_init(&omap4_panda_dss_data);
+}
+
+
+/* OMAP4 Blaze display data */
+
+#define DISPLAY_SEL_GPIO 59 /* LCD2/PicoDLP switch */
+#define DLP_POWER_ON_GPIO 40
+
+static struct nokia_dsi_panel_data dsi1_panel = {
+ .name = "taal",
+ .reset_gpio = 102,
+ .use_ext_te = false,
+ .ext_te_gpio = 101,
+ .esd_interval = 0,
+ .pin_config = {
+ .num_pins = 6,
+ .pins = { 0, 1, 2, 3, 4, 5 },
+ },
+};
+
+static struct omap_dss_device sdp4430_lcd_device = {
+ .name = "lcd",
+ .driver_name = "taal",
+ .type = OMAP_DISPLAY_TYPE_DSI,
+ .data = &dsi1_panel,
+ .phy.dsi = {
+ .module = 0,
+ },
+ .channel = OMAP_DSS_CHANNEL_LCD,
+};
+
+static struct nokia_dsi_panel_data dsi2_panel = {
+ .name = "taal",
+ .reset_gpio = 104,
+ .use_ext_te = false,
+ .ext_te_gpio = 103,
+ .esd_interval = 0,
+ .pin_config = {
+ .num_pins = 6,
+ .pins = { 0, 1, 2, 3, 4, 5 },
+ },
+};
+
+static struct omap_dss_device sdp4430_lcd2_device = {
+ .name = "lcd2",
+ .driver_name = "taal",
+ .type = OMAP_DISPLAY_TYPE_DSI,
+ .data = &dsi2_panel,
+ .phy.dsi = {
+
+ .module = 1,
+ },
+ .channel = OMAP_DSS_CHANNEL_LCD2,
+};
+
+static struct omap_dss_hdmi_data sdp4430_hdmi_data = {
+ .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
+ .ls_oe_gpio = HDMI_GPIO_LS_OE,
+ .hpd_gpio = HDMI_GPIO_HPD,
+};
+
+static struct omap_dss_device sdp4430_hdmi_device = {
+ .name = "hdmi",
+ .driver_name = "hdmi_panel",
+ .type = OMAP_DISPLAY_TYPE_HDMI,
+ .channel = OMAP_DSS_CHANNEL_DIGIT,
+ .data = &sdp4430_hdmi_data,
+};
+
+static struct picodlp_panel_data sdp4430_picodlp_pdata = {
+ .picodlp_adapter_id = 2,
+ .emu_done_gpio = 44,
+ .pwrgood_gpio = 45,
+};
+
+static void sdp4430_picodlp_init(void)
+{
+ int r;
+ const struct gpio picodlp_gpios[] = {
+ {DLP_POWER_ON_GPIO, GPIOF_OUT_INIT_LOW,
+ "DLP POWER ON"},
+ {sdp4430_picodlp_pdata.emu_done_gpio, GPIOF_IN,
+ "DLP EMU DONE"},
+ {sdp4430_picodlp_pdata.pwrgood_gpio, GPIOF_OUT_INIT_LOW,
+ "DLP PWRGOOD"},
+ };
+
+ r = gpio_request_array(picodlp_gpios, ARRAY_SIZE(picodlp_gpios));
+ if (r)
+ pr_err("Cannot request PicoDLP GPIOs, error %d\n", r);
+}
+
+static int sdp4430_panel_enable_picodlp(struct omap_dss_device *dssdev)
+{
+ gpio_set_value(DISPLAY_SEL_GPIO, 0);
+ gpio_set_value(DLP_POWER_ON_GPIO, 1);
+
+ return 0;
+}
+
+static void sdp4430_panel_disable_picodlp(struct omap_dss_device *dssdev)
+{
+ gpio_set_value(DLP_POWER_ON_GPIO, 0);
+ gpio_set_value(DISPLAY_SEL_GPIO, 1);
+}
+
+static struct omap_dss_device sdp4430_picodlp_device = {
+ .name = "picodlp",
+ .driver_name = "picodlp_panel",
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .phy.dpi.data_lines = 24,
+ .channel = OMAP_DSS_CHANNEL_LCD2,
+ .platform_enable = sdp4430_panel_enable_picodlp,
+ .platform_disable = sdp4430_panel_disable_picodlp,
+ .data = &sdp4430_picodlp_pdata,
+};
+
+static struct omap_dss_device *sdp4430_dss_devices[] = {
+ &sdp4430_lcd_device,
+ &sdp4430_lcd2_device,
+ &sdp4430_hdmi_device,
+ &sdp4430_picodlp_device,
+};
+
+static struct omap_dss_board_info sdp4430_dss_data = {
+ .num_devices = ARRAY_SIZE(sdp4430_dss_devices),
+ .devices = sdp4430_dss_devices,
+ .default_device = &sdp4430_lcd_device,
+};
+
+void __init omap_4430sdp_display_init(void)
+{
+ int r;
+
+ /* Enable LCD2 by default (instead of Pico DLP) */
+ r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
+ "display_sel");
+ if (r)
+ pr_err("%s: Could not get display_sel GPIO\n", __func__);
+
+ sdp4430_picodlp_init();
+ omap_display_init(&sdp4430_dss_data);
+ /*
+ * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
+ * later have external pull up on the HDMI I2C lines
+ */
+ if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
+ omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
+ else
+ omap_hdmi_init(0);
+
+ omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
+ omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
+ omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
+}
+
+void __init omap_4430sdp_display_init_of(void)
+{
+ int r;
+
+ /* Enable LCD2 by default (instead of Pico DLP) */
+ r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
+ "display_sel");
+ if (r)
+ pr_err("%s: Could not get display_sel GPIO\n", __func__);
+
+ sdp4430_picodlp_init();
+ omap_display_init(&sdp4430_dss_data);
+}