diff options
Diffstat (limited to 'drivers/video/savage/savagefb-i2c.c')
-rw-r--r-- | drivers/video/savage/savagefb-i2c.c | 49 |
1 files changed, 6 insertions, 43 deletions
diff --git a/drivers/video/savage/savagefb-i2c.c b/drivers/video/savage/savagefb-i2c.c index d7d810dbf0bd..3f94223b7f0c 100644 --- a/drivers/video/savage/savagefb-i2c.c +++ b/drivers/video/savage/savagefb-i2c.c | |||
@@ -213,52 +213,15 @@ void savagefb_delete_i2c_busses(struct fb_info *info) | |||
213 | par->chan.par = NULL; | 213 | par->chan.par = NULL; |
214 | } | 214 | } |
215 | 215 | ||
216 | static u8 *savage_do_probe_i2c_edid(struct savagefb_i2c_chan *chan) | ||
217 | { | ||
218 | u8 start = 0x0; | ||
219 | struct i2c_msg msgs[] = { | ||
220 | { | ||
221 | .addr = SAVAGE_DDC, | ||
222 | .len = 1, | ||
223 | .buf = &start, | ||
224 | }, { | ||
225 | .addr = SAVAGE_DDC, | ||
226 | .flags = I2C_M_RD, | ||
227 | .len = EDID_LENGTH, | ||
228 | }, | ||
229 | }; | ||
230 | u8 *buf = NULL; | ||
231 | |||
232 | if (chan->par) { | ||
233 | buf = kmalloc(EDID_LENGTH, GFP_KERNEL); | ||
234 | |||
235 | if (buf) { | ||
236 | msgs[1].buf = buf; | ||
237 | |||
238 | if (i2c_transfer(&chan->adapter, msgs, 2) != 2) { | ||
239 | dev_dbg(&chan->par->pcidev->dev, | ||
240 | "Unable to read EDID block.\n"); | ||
241 | kfree(buf); | ||
242 | buf = NULL; | ||
243 | } | ||
244 | } | ||
245 | } | ||
246 | |||
247 | return buf; | ||
248 | } | ||
249 | |||
250 | int savagefb_probe_i2c_connector(struct fb_info *info, u8 **out_edid) | 216 | int savagefb_probe_i2c_connector(struct fb_info *info, u8 **out_edid) |
251 | { | 217 | { |
252 | struct savagefb_par *par = info->par; | 218 | struct savagefb_par *par = info->par; |
253 | u8 *edid = NULL; | 219 | u8 *edid; |
254 | int i; | 220 | |
255 | 221 | if (par->chan.par) | |
256 | for (i = 0; i < 3; i++) { | 222 | edid = fb_ddc_read(&par->chan.adapter); |
257 | /* Do the real work */ | 223 | else |
258 | edid = savage_do_probe_i2c_edid(&par->chan); | 224 | edid = NULL; |
259 | if (edid) | ||
260 | break; | ||
261 | } | ||
262 | 225 | ||
263 | if (!edid) { | 226 | if (!edid) { |
264 | /* try to get from firmware */ | 227 | /* try to get from firmware */ |