diff options
Diffstat (limited to 'drivers/video/i810')
-rw-r--r-- | drivers/video/i810/i810-i2c.c | 42 |
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 @@ | |||
19 | #include "i810_main.h" | 19 | #include "i810_main.h" |
20 | #include "../edid.h" | 20 | #include "../edid.h" |
21 | 21 | ||
22 | #define I810_DDC 0x50 | ||
23 | /* bit locations in the registers */ | 22 | /* bit locations in the registers */ |
24 | #define SCL_DIR_MASK 0x0001 | 23 | #define SCL_DIR_MASK 0x0001 |
25 | #define SCL_DIR 0x0002 | 24 | #define SCL_DIR 0x0002 |
@@ -150,53 +149,14 @@ void i810_delete_i2c_busses(struct i810fb_par *par) | |||
150 | par->chan[2].par = NULL; | 149 | par->chan[2].par = NULL; |
151 | } | 150 | } |
152 | 151 | ||
153 | static u8 *i810_do_probe_i2c_edid(struct i810fb_i2c_chan *chan) | ||
154 | { | ||
155 | u8 start = 0x0; | ||
156 | struct i2c_msg msgs[] = { | ||
157 | { | ||
158 | .addr = I810_DDC, | ||
159 | .len = 1, | ||
160 | .buf = &start, | ||
161 | }, { | ||
162 | .addr = I810_DDC, | ||
163 | .flags = I2C_M_RD, | ||
164 | .len = EDID_LENGTH, | ||
165 | }, | ||
166 | }; | ||
167 | u8 *buf; | ||
168 | |||
169 | buf = kmalloc(EDID_LENGTH, GFP_KERNEL); | ||
170 | if (!buf) { | ||
171 | DPRINTK("i810-i2c: Failed to allocate memory\n"); | ||
172 | return NULL; | ||
173 | } | ||
174 | msgs[1].buf = buf; | ||
175 | |||
176 | if (i2c_transfer(&chan->adapter, msgs, 2) == 2) { | ||
177 | DPRINTK("i810-i2c: I2C Transfer successful\n"); | ||
178 | return buf; | ||
179 | } | ||
180 | |||
181 | DPRINTK("i810-i2c: Unable to read EDID block.\n"); | ||
182 | kfree(buf); | ||
183 | return NULL; | ||
184 | } | ||
185 | |||
186 | int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid, int conn) | 152 | int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid, int conn) |
187 | { | 153 | { |
188 | struct i810fb_par *par = info->par; | 154 | struct i810fb_par *par = info->par; |
189 | u8 *edid = NULL; | 155 | u8 *edid = NULL; |
190 | int i; | ||
191 | 156 | ||
192 | DPRINTK("i810-i2c: Probe DDC%i Bus\n", conn+1); | 157 | DPRINTK("i810-i2c: Probe DDC%i Bus\n", conn+1); |
193 | if (conn < par->ddc_num) { | 158 | if (conn < par->ddc_num) { |
194 | for (i = 0; i < 3; i++) { | 159 | edid = fb_ddc_read(&par->chan[conn].adapter); |
195 | /* Do the real work */ | ||
196 | edid = i810_do_probe_i2c_edid(&par->chan[conn]); | ||
197 | if (edid) | ||
198 | break; | ||
199 | } | ||
200 | } else { | 160 | } else { |
201 | const u8 *e = fb_firmware_edid(info->device); | 161 | const u8 *e = fb_firmware_edid(info->device); |
202 | 162 | ||