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-rw-r--r--linux-core/radeon_connectors.c22
-rw-r--r--linux-core/radeon_display.c6
-rw-r--r--linux-core/radeon_i2c.c33
-rw-r--r--linux-core/radeon_mode.h1
4 files changed, 46 insertions, 16 deletions
diff --git a/linux-core/radeon_connectors.c b/linux-core/radeon_connectors.c
index 5ce66d72..f217fe77 100644
--- a/linux-core/radeon_connectors.c
+++ b/linux-core/radeon_connectors.c
@@ -163,18 +163,16 @@ static int radeon_vga_mode_valid(struct drm_connector *connector,
static enum drm_connector_status radeon_vga_detect(struct drm_connector *connector)
{
- struct edid *edid;
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct drm_encoder *encoder;
struct drm_encoder_helper_funcs *encoder_funcs;
+ bool ret;
radeon_i2c_do_lock(radeon_connector, 1);
- edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
+ ret = radeon_ddc_probe(radeon_connector);
radeon_i2c_do_lock(radeon_connector, 0);
- if (edid) {
- kfree(edid);
+ if (ret)
return connector_status_connected;
- }
/* if EDID fails to a load detect */
encoder = radeon_best_single_encoder(connector);
@@ -200,27 +198,19 @@ struct drm_connector_funcs radeon_vga_connector_funcs = {
static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connector)
{
- struct edid *edid;
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct drm_encoder *encoder;
struct drm_encoder_helper_funcs *encoder_funcs;
struct drm_mode_object *obj;
int i;
enum drm_connector_status ret;
+ bool dret;
radeon_i2c_do_lock(radeon_connector, 1);
- edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
+ dret = radeon_ddc_probe(radeon_connector);
radeon_i2c_do_lock(radeon_connector, 0);
- if (edid) {
- /* if the monitor is digital - set the bits */
- if (edid->digital)
- radeon_connector->use_digital = 1;
- else
- radeon_connector->use_digital = 0;
-
- kfree(edid);
+ if (dret)
return connector_status_connected;
- }
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
if (connector->encoder_ids[i] == 0)
diff --git a/linux-core/radeon_display.c b/linux-core/radeon_display.c
index d105e1ae..c532ef0f 100644
--- a/linux-core/radeon_display.c
+++ b/linux-core/radeon_display.c
@@ -31,6 +31,7 @@
#include <asm/div64.h>
#include "drm_crtc_helper.h"
+#include "drm_edid.h"
int radeon_ddc_dump(struct drm_connector *connector);
@@ -305,6 +306,11 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
radeon_i2c_do_lock(radeon_connector, 0);
if (edid) {
+ /* update digital bits here */
+ if (edid->digital)
+ radeon_connector->use_digital = 1;
+ else
+ radeon_connector->use_digital = 0;
drm_mode_connector_update_edid_property(&radeon_connector->base, edid);
ret = drm_add_edid_modes(&radeon_connector->base, edid);
kfree(edid);
diff --git a/linux-core/radeon_i2c.c b/linux-core/radeon_i2c.c
index 00fc7c0e..94a485ba 100644
--- a/linux-core/radeon_i2c.c
+++ b/linux-core/radeon_i2c.c
@@ -27,6 +27,38 @@
#include "radeon_drm.h"
#include "radeon_drv.h"
+/**
+ * radeon_ddc_probe
+ *
+ */
+bool radeon_ddc_probe(struct radeon_connector *radeon_connector)
+{
+ u8 out_buf[] = { 0x0, 0x0};
+ u8 buf[2];
+ int ret;
+ struct i2c_msg msgs[] = {
+ {
+ .addr = 0x50,
+ .flags = 0,
+ .len = 1,
+ .buf = out_buf,
+ },
+ {
+ .addr = 0x50,
+ .flags = I2C_M_RD,
+ .len = 1,
+ .buf = buf,
+ }
+ };
+
+ ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2);
+ if (ret == 2)
+ return true;
+
+ return false;
+}
+
+
void radeon_i2c_do_lock(struct radeon_connector *radeon_connector, int lock_state)
{
struct drm_radeon_private *dev_priv = radeon_connector->base.dev->dev_private;
@@ -161,3 +193,4 @@ struct drm_encoder *radeon_best_encoder(struct drm_connector *connector)
{
return NULL;
}
+
diff --git a/linux-core/radeon_mode.h b/linux-core/radeon_mode.h
index d7c60fa6..e8a0106e 100644
--- a/linux-core/radeon_mode.h
+++ b/linux-core/radeon_mode.h
@@ -247,6 +247,7 @@ extern struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev,
struct radeon_i2c_bus_rec *rec,
const char *name);
extern void radeon_i2c_destroy(struct radeon_i2c_chan *i2c);
+extern bool radeon_ddc_probe(struct radeon_connector *radeon_connector);
extern int radeon_ddc_get_modes(struct radeon_connector *radeon_connector);
extern struct drm_connector *radeon_connector_add(struct drm_device *dev, int bios_index);