This source file includes following definitions.
- psb_intel_ddc_probe
- psb_intel_ddc_get_modes
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8 #include <linux/i2c.h>
9
10 #include "psb_intel_drv.h"
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16 bool psb_intel_ddc_probe(struct i2c_adapter *adapter)
17 {
18 u8 out_buf[] = { 0x0, 0x0 };
19 u8 buf[2];
20 int ret;
21 struct i2c_msg msgs[] = {
22 {
23 .addr = 0x50,
24 .flags = 0,
25 .len = 1,
26 .buf = out_buf,
27 },
28 {
29 .addr = 0x50,
30 .flags = I2C_M_RD,
31 .len = 1,
32 .buf = buf,
33 }
34 };
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36 ret = i2c_transfer(adapter, msgs, 2);
37 if (ret == 2)
38 return true;
39
40 return false;
41 }
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49 int psb_intel_ddc_get_modes(struct drm_connector *connector,
50 struct i2c_adapter *adapter)
51 {
52 struct edid *edid;
53 int ret = 0;
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55 edid = drm_get_edid(connector, adapter);
56 if (edid) {
57 drm_connector_update_edid_property(connector, edid);
58 ret = drm_add_edid_modes(connector, edid);
59 kfree(edid);
60 }
61 return ret;
62 }