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path: root/drivers/gpu/drm/radeon/radeon_i2c.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_i2c.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_i2c.c60
1 files changed, 13 insertions, 47 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index e24ca6ab96de..7b944142a9fd 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -64,8 +64,7 @@ bool radeon_ddc_probe(struct radeon_connector *radeon_connector, bool use_aux)
64 radeon_router_select_ddc_port(radeon_connector); 64 radeon_router_select_ddc_port(radeon_connector);
65 65
66 if (use_aux) { 66 if (use_aux) {
67 struct radeon_connector_atom_dig *dig = radeon_connector->con_priv; 67 ret = i2c_transfer(&radeon_connector->ddc_bus->aux.ddc, msgs, 2);
68 ret = i2c_transfer(&dig->dp_i2c_bus->adapter, msgs, 2);
69 } else { 68 } else {
70 ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2); 69 ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2);
71 } 70 }
@@ -950,16 +949,16 @@ struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev,
950 /* set the radeon bit adapter */ 949 /* set the radeon bit adapter */
951 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name), 950 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
952 "Radeon i2c bit bus %s", name); 951 "Radeon i2c bit bus %s", name);
953 i2c->adapter.algo_data = &i2c->algo.bit; 952 i2c->adapter.algo_data = &i2c->bit;
954 i2c->algo.bit.pre_xfer = pre_xfer; 953 i2c->bit.pre_xfer = pre_xfer;
955 i2c->algo.bit.post_xfer = post_xfer; 954 i2c->bit.post_xfer = post_xfer;
956 i2c->algo.bit.setsda = set_data; 955 i2c->bit.setsda = set_data;
957 i2c->algo.bit.setscl = set_clock; 956 i2c->bit.setscl = set_clock;
958 i2c->algo.bit.getsda = get_data; 957 i2c->bit.getsda = get_data;
959 i2c->algo.bit.getscl = get_clock; 958 i2c->bit.getscl = get_clock;
960 i2c->algo.bit.udelay = 10; 959 i2c->bit.udelay = 10;
961 i2c->algo.bit.timeout = usecs_to_jiffies(2200); /* from VESA */ 960 i2c->bit.timeout = usecs_to_jiffies(2200); /* from VESA */
962 i2c->algo.bit.data = i2c; 961 i2c->bit.data = i2c;
963 ret = i2c_bit_add_bus(&i2c->adapter); 962 ret = i2c_bit_add_bus(&i2c->adapter);
964 if (ret) { 963 if (ret) {
965 DRM_ERROR("Failed to register bit i2c %s\n", name); 964 DRM_ERROR("Failed to register bit i2c %s\n", name);
@@ -974,46 +973,13 @@ out_free:
974 973
975} 974}
976 975
977struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
978 struct radeon_i2c_bus_rec *rec,
979 const char *name)
980{
981 struct radeon_i2c_chan *i2c;
982 int ret;
983
984 i2c = kzalloc(sizeof(struct radeon_i2c_chan), GFP_KERNEL);
985 if (i2c == NULL)
986 return NULL;
987
988 i2c->rec = *rec;
989 i2c->adapter.owner = THIS_MODULE;
990 i2c->adapter.class = I2C_CLASS_DDC;
991 i2c->adapter.dev.parent = &dev->pdev->dev;
992 i2c->dev = dev;
993 snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
994 "Radeon aux bus %s", name);
995 i2c_set_adapdata(&i2c->adapter, i2c);
996 i2c->adapter.algo_data = &i2c->algo.dp;
997 i2c->algo.dp.aux_ch = radeon_dp_i2c_aux_ch;
998 i2c->algo.dp.address = 0;
999 ret = i2c_dp_aux_add_bus(&i2c->adapter);
1000 if (ret) {
1001 DRM_INFO("Failed to register i2c %s\n", name);
1002 goto out_free;
1003 }
1004
1005 return i2c;
1006out_free:
1007 kfree(i2c);
1008 return NULL;
1009
1010}
1011
1012void radeon_i2c_destroy(struct radeon_i2c_chan *i2c) 976void radeon_i2c_destroy(struct radeon_i2c_chan *i2c)
1013{ 977{
1014 if (!i2c) 978 if (!i2c)
1015 return; 979 return;
1016 i2c_del_adapter(&i2c->adapter); 980 i2c_del_adapter(&i2c->adapter);
981 if (i2c->has_aux)
982 drm_dp_aux_unregister_i2c_bus(&i2c->aux);
1017 kfree(i2c); 983 kfree(i2c);
1018} 984}
1019 985