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| author | Antonino A. Daplas <adaplas@gmail.com> | 2007-05-08 00:37:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:26 -0700 |
| commit | 66fd14120edea89d353fac0649e9ec0045ec958f (patch) | |
| tree | 193693e3081e0f43783a190dfaa51fb8561a7511 /drivers/video/nvidia | |
| parent | 71c6efd9930bd87249d007120425341d1293303d (diff) | |
| download | linux-66fd14120edea89d353fac0649e9ec0045ec958f.tar.gz linux-66fd14120edea89d353fac0649e9ec0045ec958f.tar.bz2 linux-66fd14120edea89d353fac0649e9ec0045ec958f.zip | |
nvidiafb: bring back generic ddc reading
Make nvidiafb use fb_ddc_read(). This patch was submitted before but was
reverted due to problems in a non-x86 platform. This includes a fix for that
where ddc reading is bypassed if there is no DDC bus (duh).
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/nvidia')
| -rw-r--r-- | drivers/video/nvidia/nv_i2c.c | 44 |
1 files changed, 2 insertions, 42 deletions
diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c index b8588973e400..b91d4045431d 100644 --- a/drivers/video/nvidia/nv_i2c.c +++ b/drivers/video/nvidia/nv_i2c.c @@ -70,8 +70,6 @@ static int nvidia_gpio_getscl(void *data) if (VGA_RD08(par->PCIO, 0x3d5) & 0x04) val = 1; - val = VGA_RD08(par->PCIO, 0x3d5); - return val; } @@ -159,51 +157,13 @@ void nvidia_delete_i2c_busses(struct nvidia_par *par) } -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; - for (i = 0; i < 3; i++) { - /* Do the real work */ - edid = nvidia_do_probe_i2c_edid(&par->chan[conn - 1]); - if (edid) - break; - } + if (par->chan[conn - 1].par) + edid = fb_ddc_read(&par->chan[conn - 1].adapter); if (!edid && conn == 1) { /* try to get from firmware */ |