[PATCH] nvidiafb: 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>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index d498e90..756ea81 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -701,6 +701,7 @@
depends on FB && PCI
select I2C_ALGOBIT if FB_NVIDIA_I2C
select I2C if FB_NVIDIA_I2C
+ select FB_DDC if FB_NVIDIA_I2C
select FB_MODE_HELPERS
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c
index 19eef3a..e48de3c 100644
--- a/drivers/video/nvidia/nv_i2c.c
+++ b/drivers/video/nvidia/nv_i2c.c
@@ -160,51 +160,12 @@
}
-static u8 *nvidia_do_probe_i2c_edid(struct nvidia_i2c_chan *chan)
-{
- u8 start = 0x0;
- struct i2c_msg msgs[] = {
- {
- .addr = 0x50,
- .len = 1,
- .buf = &start,
- }, {
- .addr = 0x50,
- .flags = I2C_M_RD,
- .len = EDID_LENGTH,
- },
- };
- u8 *buf;
-
- if (!chan->par)
- return NULL;
-
- buf = kmalloc(EDID_LENGTH, GFP_KERNEL);
- if (!buf) {
- dev_warn(&chan->par->pci_dev->dev, "Out of memory!\n");
- return NULL;
- }
- msgs[1].buf = buf;
-
- if (i2c_transfer(&chan->adapter, msgs, 2) == 2)
- return buf;
- dev_dbg(&chan->par->pci_dev->dev, "Unable to read EDID block.\n");
- kfree(buf);
- return NULL;
-}
-
int nvidia_probe_i2c_connector(struct fb_info *info, int conn, u8 **out_edid)
{
struct nvidia_par *par = info->par;
- u8 *edid = NULL;
- int i;
+ u8 *edid;
- for (i = 0; i < 3; i++) {
- /* Do the real work */
- edid = nvidia_do_probe_i2c_edid(&par->chan[conn - 1]);
- if (edid)
- break;
- }
+ edid = fb_ddc_read(&par->chan[conn - 1].adapter);
if (!edid && conn == 1) {
/* try to get from firmware */