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authorAntonino A. Daplas <adaplas@gmail.com>2006-10-03 01:14:44 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 08:04:09 -0700
commite80987f8db7b9c33089bb395ed54cb96d55eae04 (patch)
treea443b3f990396ef1da3d17e7b081226cd82cb298 /drivers/video/i810
parentbf5df0a2c54c2dc0fad619ac25d029119023610a (diff)
downloadtalos-obmc-linux-e80987f8db7b9c33089bb395ed54cb96d55eae04.tar.gz
talos-obmc-linux-e80987f8db7b9c33089bb395ed54cb96d55eae04.zip
[PATCH] i810fb: Use generic DDC reading
Update driver to use generic DDC reading Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/i810')
-rw-r--r--drivers/video/i810/i810-i2c.c42
1 files changed, 1 insertions, 41 deletions
diff --git a/drivers/video/i810/i810-i2c.c b/drivers/video/i810/i810-i2c.c
index 7d06b38e80a0..b38d805db313 100644
--- a/drivers/video/i810/i810-i2c.c
+++ b/drivers/video/i810/i810-i2c.c
@@ -19,7 +19,6 @@
#include "i810_main.h"
#include "../edid.h"
-#define I810_DDC 0x50
/* bit locations in the registers */
#define SCL_DIR_MASK 0x0001
#define SCL_DIR 0x0002
@@ -150,53 +149,14 @@ void i810_delete_i2c_busses(struct i810fb_par *par)
par->chan[2].par = NULL;
}
-static u8 *i810_do_probe_i2c_edid(struct i810fb_i2c_chan *chan)
-{
- u8 start = 0x0;
- struct i2c_msg msgs[] = {
- {
- .addr = I810_DDC,
- .len = 1,
- .buf = &start,
- }, {
- .addr = I810_DDC,
- .flags = I2C_M_RD,
- .len = EDID_LENGTH,
- },
- };
- u8 *buf;
-
- buf = kmalloc(EDID_LENGTH, GFP_KERNEL);
- if (!buf) {
- DPRINTK("i810-i2c: Failed to allocate memory\n");
- return NULL;
- }
- msgs[1].buf = buf;
-
- if (i2c_transfer(&chan->adapter, msgs, 2) == 2) {
- DPRINTK("i810-i2c: I2C Transfer successful\n");
- return buf;
- }
-
- DPRINTK("i810-i2c: Unable to read EDID block.\n");
- kfree(buf);
- return NULL;
-}
-
int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid, int conn)
{
struct i810fb_par *par = info->par;
u8 *edid = NULL;
- int i;
DPRINTK("i810-i2c: Probe DDC%i Bus\n", conn+1);
if (conn < par->ddc_num) {
- for (i = 0; i < 3; i++) {
- /* Do the real work */
- edid = i810_do_probe_i2c_edid(&par->chan[conn]);
- if (edid)
- break;
- }
+ edid = fb_ddc_read(&par->chan[conn].adapter);
} else {
const u8 *e = fb_firmware_edid(info->device);
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