Generic panel driver includes the driver and 4 similar panel configurations. It
will match the panel name which is passed from platform data and setup the
right configurations.
With generic panel driver, we can remove those 4 duplicated panel display
drivers. In the future, it is simple for us just add new panel configuration
date in panel-generic.c to support new display panel.
Signed-off-by: Bryan Wu <bryan...@canonical.com>
---
drivers/video/omap2/displays/Kconfig | 4 +-
drivers/video/omap2/displays/panel-generic.c | 153 +++++++++++++++++++++++---
2 files changed, 142 insertions(+), 15 deletions(-)
diff --git a/drivers/video/omap2/displays/Kconfig
b/drivers/video/omap2/displays/Kconfig
index 12327bb..1a455d7 100644
--- a/drivers/video/omap2/displays/Kconfig
+++ b/drivers/video/omap2/displays/Kconfig
@@ -5,7 +5,9 @@ config PANEL_GENERIC
tristate "Generic Panel"
help
Generic panel driver.
- Used for DVI output for Beagle and OMAP3 SDP.
+ Supports DVI output for Beagle and OMAP3 SDP.
+ Supports LCD Panel used in TI SDP3430 and EVM boards,
+ OMAP3517 EVM boards and CM-T35.
config PANEL_SHARP_LS037V7DW01
tristate "Sharp LS037V7DW01 LCD Panel"
diff --git a/drivers/video/omap2/displays/panel-generic.c
b/drivers/video/omap2/displays/panel-generic.c
index 395a68d..88e5bdf 100644
--- a/drivers/video/omap2/displays/panel-generic.c
+++ b/drivers/video/omap2/displays/panel-generic.c
@@ -1,5 +1,8 @@
/*
- * Generic panel support
+ * Generic Panels support
+ *
+ * Copyright (C) 2010 Canonical Ltd.
+ * Author: Bryan Wu <bryan...@canonical.com>
*
* Copyright (C) 2008 Nokia Corporation
* Author: Tomi Valkeinen <tomi.valkei...@nokia.com>
@@ -22,22 +25,113 @@
#include <plat/display.h>
-static struct omap_video_timings generic_panel_timings = {
- /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
- .x_res = 640,
- .y_res = 480,
- .pixel_clock = 23500,
- .hfp = 48,
- .hsw = 32,
- .hbp = 80,
- .vfp = 3,
- .vsw = 4,
- .vbp = 7,
+/* Panel configurations */
+static struct omap_display_panel generic_panels[] = {
+ /* Generic Panel for DVI */
+ {
+ {
+ .x_res = 640,
+ .y_res = 480,
+
+ .pixel_clock = 23500,
+
+ .hfp = 48,
+ .hsw = 32,
+ .hbp = 80,
+
+ .vfp = 3,
+ .vsw = 4,
+ .vbp = 7,
+ },
+ .acbi = 0x0,
+ .acb = 0x0,
+ .config = OMAP_DSS_LCD_TFT,
+ .power_on_delay = 0,
+ .power_off_delay = 0,
+ .name = "dvi",
+ },
+
+ /* Sharp LQ043T1DG01 */
+ {
+ {
+ .x_res = 480,
+ .y_res = 272,
+
+ .pixel_clock = 9000,
+
+ .hsw = 42,
+ .hfp = 3,
+ .hbp = 2,
+
+ .vsw = 11,
+ .vfp = 3,
+ .vbp = 2,
+ },
+ .acbi = 0x0,
+ .acb = 0x0,
+ .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+ OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO,
+ .power_on_delay = 50,
+ .power_off_delay = 100,
+ .name = "sharp_lq",
+ },
+
+ /* Sharp LS037V7DW01 */
+ {
+ {
+ .x_res = 480,
+ .y_res = 640,
+
+ .pixel_clock = 19200,
+
+ .hsw = 2,
+ .hfp = 1,
+ .hbp = 28,
+
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 1,
+ },
+ .acbi = 0x0,
+ .acb = 0x28,
+ .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+ OMAP_DSS_LCD_IHS,
+ .power_on_delay = 50,
+ .power_off_delay = 100,
+ .name = "sharp_ls",
+ },
+
+ /* Toppoly TDO35S */
+ {
+ {
+ .x_res = 480,
+ .y_res = 640,
+
+ .pixel_clock = 26000,
+
+ .hfp = 104,
+ .hsw = 8,
+ .hbp = 8,
+
+ .vfp = 4,
+ .vsw = 2,
+ .vbp = 2,
+ },
+ .acbi = 0x0,
+ .acb = 0x0,
+ .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+ OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC |
+ OMAP_DSS_LCD_ONOFF,
+ .power_on_delay = 0,
+ .power_off_delay = 0,
+ .name = "toppoly_tdo35s",
+ },
};
static int generic_panel_power_on(struct omap_dss_device *dssdev)
{
int r;
+ struct omap_display_panel *p = &dssdev->panel;
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
return 0;
@@ -46,6 +140,10 @@ static int generic_panel_power_on(struct omap_dss_device
*dssdev)
if (r)
goto err0;
+ /* wait couple of vsyncs until enabling the LCD */
+ if (p->power_on_delay)
+ msleep(p->power_on_delay);
+
if (dssdev->platform_enable) {
r = dssdev->platform_enable(dssdev);
if (r)
@@ -61,19 +159,44 @@ err0:
static void generic_panel_power_off(struct omap_dss_device *dssdev)
{
+ struct omap_display_panel *p = &dssdev->panel;
+
if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
return;
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
+ /* wait couple of vsyncs after disabling the LCD */
+ if (p->power_off_delay)
+ msleep(p->power_off_delay);
+
omapdss_dpi_display_disable(dssdev);
}
static int generic_panel_probe(struct omap_dss_device *dssdev)
{
- dssdev->panel.config = OMAP_DSS_LCD_TFT;
- dssdev->panel.timings = generic_panel_timings;
+ struct omap_display_panel *dp = &dssdev->panel;
+ struct omap_display_panel *pp = NULL;
+ int i;
+ int matched = 0;
+
+ if (dp->name == NULL)
+ return -ENODEV;
+
+ /* Match for the configuration of the panel */
+ for (i = 0; i < ARRAY_SIZE(generic_panels); i++) {
+ pp = &generic_panels[i];
+ if (strcmp(pp->name, dp->name) == 0) {
+ matched = 1;
+ break;
+ }
+ }
+
+ if (!matched)
+ return -ENODEV;
+
+ memcpy(dp, pp, sizeof(struct omap_display_panel));
return 0;
}
@@ -105,7 +228,9 @@ static void generic_panel_disable(struct omap_dss_device
*dssdev)
static int generic_panel_suspend(struct omap_dss_device *dssdev)
{
generic_panel_power_off(dssdev);
+
dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
return 0;
}
--
1.7.1
--
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