OMAPDSS: Add NEC NL8048HL11 panel driver

Add NEC NL8048HL11 panel driver which uses the new DSS device model
and DSS ops.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

4 files changed, 421 insertions, 0 deletions

diff --git a/drivers/video/omap2/displays-new/Kconfig b/drivers/video/omap2/displays-new/Kconfig
index c66ecb23e3d9..7ad34ac7a816 100644
--- a/drivers/video/omap2/displays-new/Kconfig
+++ b/drivers/video/omap2/displays-new/Kconfig
@@ -62,4 +62,12 @@ config DISPLAY_PANEL_TPO_TD043MTEA1
         help
           LCD Panel used in OMAP3 Pandora
 
+config DISPLAY_PANEL_NEC_NL8048HL11
+        tristate "NEC NL8048HL11 Panel"
+        depends on SPI
+        depends on BACKLIGHT_CLASS_DEVICE
+        help
+                This NEC NL8048HL11 panel is TFT LCD used in the
+                Zoom2/3/3630 sdp boards.
+
 endmenu
diff --git a/drivers/video/omap2/displays-new/Makefile b/drivers/video/omap2/displays-new/Makefile
index 628ea3e7bb69..5aeb11b8fcd5 100644
--- a/drivers/video/omap2/displays-new/Makefile
+++ b/drivers/video/omap2/displays-new/Makefile
@@ -9,3 +9,4 @@ obj-$(CONFIG_DISPLAY_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
 obj-$(CONFIG_DISPLAY_PANEL_LGPHILIPS_LB035Q02) += panel-lgphilips-lb035q02.o
 obj-$(CONFIG_DISPLAY_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
 obj-$(CONFIG_DISPLAY_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
+obj-$(CONFIG_DISPLAY_PANEL_NEC_NL8048HL11) += panel-nec-nl8048hl11.o
diff --git a/drivers/video/omap2/displays-new/panel-nec-nl8048hl11.c b/drivers/video/omap2/displays-new/panel-nec-nl8048hl11.c
new file mode 100644
index 000000000000..bb217da65c5f
--- /dev/null
+++ b/drivers/video/omap2/displays-new/panel-nec-nl8048hl11.c
@@ -0,0 +1,394 @@
+/*
+ * NEC NL8048HL11 Panel driver
+ *
+ * Copyright (C) 2010 Texas Instruments Inc.
+ * Author: Erik Gilling <konkers@android.com>
+ * Converted to new DSS device model: 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 as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/spi/spi.h>
+#include <linux/fb.h>
+#include <linux/gpio.h>
+
+#include <video/omapdss.h>
+#include <video/omap-panel-data.h>
+
+struct panel_drv_data {
+        struct omap_dss_device  dssdev;
+        struct omap_dss_device *in;
+
+        struct omap_video_timings videomode;
+
+        int data_lines;
+
+        int res_gpio;
+        int qvga_gpio;
+
+        struct spi_device *spi;
+};
+
+#define LCD_XRES                800
+#define LCD_YRES                480
+/*
+ * NEC PIX Clock Ratings
+ * MIN:21.8MHz TYP:23.8MHz MAX:25.7MHz
+ */
+#define LCD_PIXEL_CLOCK         23800
+
+static const struct {
+        unsigned char addr;
+        unsigned char dat;
+} nec_8048_init_seq[] = {
+        { 3, 0x01 }, { 0, 0x00 }, { 1, 0x01 }, { 4, 0x00 }, { 5, 0x14 },
+        { 6, 0x24 }, { 16, 0xD7 }, { 17, 0x00 }, { 18, 0x00 }, { 19, 0x55 },
+        { 20, 0x01 }, { 21, 0x70 }, { 22, 0x1E }, { 23, 0x25 }, { 24, 0x25 },
+        { 25, 0x02 }, { 26, 0x02 }, { 27, 0xA0 }, { 32, 0x2F }, { 33, 0x0F },
+        { 34, 0x0F }, { 35, 0x0F }, { 36, 0x0F }, { 37, 0x0F }, { 38, 0x0F },
+        { 39, 0x00 }, { 40, 0x02 }, { 41, 0x02 }, { 42, 0x02 }, { 43, 0x0F },
+        { 44, 0x0F }, { 45, 0x0F }, { 46, 0x0F }, { 47, 0x0F }, { 48, 0x0F },
+        { 49, 0x0F }, { 50, 0x00 }, { 51, 0x02 }, { 52, 0x02 }, { 53, 0x02 },
+        { 80, 0x0C }, { 83, 0x42 }, { 84, 0x42 }, { 85, 0x41 }, { 86, 0x14 },
+        { 89, 0x88 }, { 90, 0x01 }, { 91, 0x00 }, { 92, 0x02 }, { 93, 0x0C },
+        { 94, 0x1C }, { 95, 0x27 }, { 98, 0x49 }, { 99, 0x27 }, { 102, 0x76 },
+        { 103, 0x27 }, { 112, 0x01 }, { 113, 0x0E }, { 114, 0x02 },
+        { 115, 0x0C }, { 118, 0x0C }, { 121, 0x30 }, { 130, 0x00 },
+        { 131, 0x00 }, { 132, 0xFC }, { 134, 0x00 }, { 136, 0x00 },
+        { 138, 0x00 }, { 139, 0x00 }, { 140, 0x00 }, { 141, 0xFC },
+        { 143, 0x00 }, { 145, 0x00 }, { 147, 0x00 }, { 148, 0x00 },
+        { 149, 0x00 }, { 150, 0xFC }, { 152, 0x00 }, { 154, 0x00 },
+        { 156, 0x00 }, { 157, 0x00 }, { 2, 0x00 },
+};
+
+static const struct omap_video_timings nec_8048_panel_timings = {
+        .x_res          = LCD_XRES,
+        .y_res          = LCD_YRES,
+        .pixel_clock    = LCD_PIXEL_CLOCK,
+        .hfp            = 6,
+        .hsw            = 1,
+        .hbp            = 4,
+        .vfp            = 3,
+        .vsw            = 1,
+        .vbp            = 4,
+
+        .vsync_level    = OMAPDSS_SIG_ACTIVE_LOW,
+        .hsync_level    = OMAPDSS_SIG_ACTIVE_LOW,
+        .data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
+        .de_level       = OMAPDSS_SIG_ACTIVE_HIGH,
+        .sync_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
+};
+
+#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
+
+static int nec_8048_spi_send(struct spi_device *spi, unsigned char reg_addr,
+                        unsigned char reg_data)
+{
+        int ret = 0;
+        unsigned int cmd = 0, data = 0;
+
+        cmd = 0x0000 | reg_addr; /* register address write */
+        data = 0x0100 | reg_data; /* register data write */
+        data = (cmd << 16) | data;
+
+        ret = spi_write(spi, (unsigned char *)&data, 4);
+        if (ret)
+                pr_err("error in spi_write %x\n", data);
+
+        return ret;
+}
+
+static int init_nec_8048_wvga_lcd(struct spi_device *spi)
+{
+        unsigned int i;
+        /* Initialization Sequence */
+        /* nec_8048_spi_send(spi, REG, VAL) */
+        for (i = 0; i < (ARRAY_SIZE(nec_8048_init_seq) - 1); i++)
+                nec_8048_spi_send(spi, nec_8048_init_seq[i].addr,
+                                nec_8048_init_seq[i].dat);
+        udelay(20);
+        nec_8048_spi_send(spi, nec_8048_init_seq[i].addr,
+                                nec_8048_init_seq[i].dat);
+        return 0;
+}
+
+static int nec_8048_connect(struct omap_dss_device *dssdev)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+        int r;
+
+        if (omapdss_device_is_connected(dssdev))
+                return 0;
+
+        r = in->ops.dpi->connect(in, dssdev);
+        if (r)
+                return r;
+
+        return 0;
+}
+
+static void nec_8048_disconnect(struct omap_dss_device *dssdev)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+
+        if (!omapdss_device_is_connected(dssdev))
+                return;
+
+        in->ops.dpi->disconnect(in, dssdev);
+}
+
+static int nec_8048_enable(struct omap_dss_device *dssdev)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);