Currently, a long set of viafb options are needed to get the XO-1.5
laptop to output video (there is only 1 configuration that works, that
can't really be autodetected).
This patch automatically detects and configures viafb for the XO-1.5
laptop, meaning all that is required for working display is that
viafb is loaded.
Signed-off-by: Daniel Drake <dsd@xxxxxxxxxx>
---
drivers/video/via/viafbdev.c | 41 ++++++++++++++++++++++++++++++++---------
1 files changed, 32 insertions(+), 9 deletions(-)
v2: incorporates all feedback from Florian
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index 7b4390e..7a4dd0e 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -24,6 +24,7 @@
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/via-core.h>
+#include <asm/olpc.h>
#define _MASTER_FILE
#include "global.h"
@@ -1011,8 +1012,13 @@ static int __init parse_active_dev(void)
/* Note: The previous of active_dev is primary device,
and the following is secondary device. */
if (!viafb_active_dev) {
- viafb_CRT_ON = STATE_ON;
- viafb_SAMM_ON = STATE_OFF;
+ if (machine_is_olpc()) { /* LCD only */
+ viafb_LCD_ON = STATE_ON;
+ viafb_SAMM_ON = STATE_OFF;
+ } else {
+ viafb_CRT_ON = STATE_ON;
+ viafb_SAMM_ON = STATE_OFF;
+ }
} else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
/* CRT+DVI */
viafb_CRT_ON = STATE_ON;
@@ -1665,8 +1671,13 @@ static int parse_mode(const char *str, u32 *xres, u32 *yres)
char *ptr;
if (!str) {
- *xres = 640;
- *yres = 480;
+ if (machine_is_olpc()) {
+ *xres = 1200;
+ *yres = 900;
+ } else {
+ *xres = 640;
+ *yres = 480;
+ }
return 0;
}
@@ -1922,11 +1933,16 @@ void __devexit via_fb_pci_remove(struct pci_dev *pdev)
}
#ifndef MODULE
-static int __init viafb_setup(char *options)
+static int __init viafb_setup(void)
{
char *this_opt;
+ char *options;
+
DEBUG_MSG(KERN_INFO "viafb_setup!\n");
+ if (fb_get_options("viafb", &options))
+ return -ENODEV;
+
if (!options || !*options)
return 0;
@@ -2000,11 +2016,18 @@ static int __init viafb_setup(char *options)
int __init viafb_init(void)
{
u32 dummy_x, dummy_y;
+ int r;
+
+ if (machine_is_olpc()) {
+ /* Apply XO-1.5-specific configuration. */
+ viafb_lcd_panel_id = 23;
+ viafb_bpp = 24;
+ }
+
#ifndef MODULE
- char *option = NULL;
- if (fb_get_options("viafb", &option))
- return -ENODEV;
- viafb_setup(option);
+ r = viafb_setup();
+ if (r < 0)
+ return r;
#endif
if (parse_mode(viafb_mode, &dummy_x, &dummy_y)
|| !viafb_get_mode(dummy_x, dummy_y)
--
1.7.4.4
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