U8500: Generic display driver

This patch introduces combined DSI and DPI display support for u-boot.
The code is also similar to the kernel code for easy maintenance.

ST-Ericsson ID: ER319241
ST-Ericsson FOSS-OUT ID: STETL-FOSS-OUT-10069

Change-Id: Ic232b6f738348cbedb67e27418678ddd223d7800
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/11038
Reviewed-by: Jimmy RUBIN <jimmy.rubin@stericsson.com>
Reviewed-by: Michael BRANDT <michael.brandt@stericsson.com>
Tested-by: Torbjorn SVENSSON <torbjorn.x.svensson@stericsson.com>

1 files changed, 110 insertions, 0 deletions

diff --git a/board/st/u8500/mcde_display_dpi.c b/board/st/u8500/mcde_display_dpi.c
new file mode 100644
index 000000000..c2122c672
--- /dev/null
+++ b/board/st/u8500/mcde_display_dpi.c
@@ -0,0 +1,110 @@
+/*
+* Copyright (C) ST-Ericsson SA 2010
+*
+* Author: Torbjorn Svensson <torbjorn.x.svensson@stericsson.com>
+* for ST-Ericsson.
+*
+* License terms: GNU General Public License (GPL), version 2.
+*/
+
+
+#include <common.h>
+#include <command.h>
+#include <asm/arch/common.h>
+#include "mcde_display.h"
+#include "mcde_regs.h"
+#include <malloc.h>
+#include "mcde.h"
+#include <linux/err.h>
+#include <asm/arch/ab8500.h>
+#include "common.h"
+
+static int mcde_enable_gpio(void)
+{
+	debug("%s: enter\n", __func__);
+	/* placeholder */
+
+	return 0;
+}
+
+int mcde_turn_on_display_dpi(void)
+{
+	debug("Turn on display (dpi)!\n");
+	/* placeholder */
+
+	return 0;
+}
+
+static int mcde_display_power_init(void)
+{
+	debug("%s: Entering\n", __func__);
+	/* placeholder */
+
+	return 0;
+}
+
+int dpi_display_platform_enable(void)
+{
+	int res = 0;
+	debug("%s: Entering\n", __func__);
+
+	/* the gpios used to be enabled here */
+
+	return res;
+}
+
+void print_vmode(struct mcde_video_mode *vmode)
+{
+	if (!vmode) {
+		printf("%s: vmode = NULL\n", __func__);
+		return;
+	}
+	debug("resolution: %dx%d\n", vmode->xres, vmode->yres);
+	debug("  pixclock: %d\n",    vmode->pixclock);
+	debug("       hbp: %d\n",    vmode->hbp);
+	debug("       hfp: %d\n",    vmode->hfp);
+	debug("       hsw: %d\n",    vmode->hsw);
+	debug("       vbp: %d\n",    vmode->vbp1);
+	debug("       vfp: %d\n",    vmode->vfp1);
+	debug("       vsw: %d\n",    vmode->vsw);
+	debug("interlaced: %s\n",    vmode->interlaced ? "true" : "false");
+	debug("    bckcol: (%d,%d,%d)\n",
+		vmode->bckcol[0], vmode->bckcol[1], vmode->bckcol[2]);
+}
+
+int mcde_startup_dpi(struct mcde_platform_data *pdata)
+{
+	int ret;
+
+	debug("%s: Entering\n", __func__);
+	if (main_display.port->mode != MCDE_PORTMODE_VID) {
+		printf("%s: Only VIDEO mode supported\n", __func__);
+		return -ENODEV;
+	}
+
+	mcde_init();
+	ret = mcde_probe(1, pdata);
+	if (ret != 0) {
+		printf("%s: mcde_probe() -> %d\n", __func__, ret);
+		return ret;
+	}
+	ret = mcde_display_power_init();
+	if (ret != 0) {
+		printf("%s: mcde_display_power_init() -> %d\n", __func__, ret);
+		return ret;
+	}
+	ret = mcde_enable_gpio();
+	if (ret != 0) {
+		printf("%s: mcde_enable_gpio() -> %d\n", __func__, ret);
+		return ret;
+	}
+	ret =  dpi_display_platform_enable();
+	if (ret != 0) {
+		printf("%s: dpi_display_platform_enable() -> %d\n",
+				__func__, ret);
+		return ret;
+	}
+	print_vmode(&video_mode);
+
+	return 0;
+}