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drm/radeon/kms: initial radeon displayport porting

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This is enough to retrieve EDID and DPCP.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2009-12-08 07:07:28 +10:00
parent d904ef9b00
commit 746c1aa4d1
9 changed files with 500 additions and 24 deletions
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21
drivers/gpu/drm/radeon/radeon_mode.h
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@@ -33,6 +33,7 @@
#include <drm_crtc.h>
#include <drm_mode.h>
#include <drm_edid.h>
#include <drm_dp_helper.h>
#include <linux/i2c.h>
#include <linux/i2c-id.h>
#include <linux/i2c-algo-bit.h>
@@ -164,10 +165,14 @@ struct radeon_pll {
};
struct radeon_i2c_chan {
struct drm_device *dev;
struct i2c_adapter adapter;
struct i2c_algo_bit_data algo;
struct drm_device *dev;
union {
struct i2c_algo_dp_aux_data dp;
struct i2c_algo_bit_data bit;
} algo;
struct radeon_i2c_bus_rec rec;
uint8_t i2c_id;
};
/* mostly for macs, but really any system without connector tables */
@@ -328,6 +333,9 @@ struct radeon_encoder {
struct radeon_connector_atom_dig {
uint32_t igp_lane_info;
bool linkb;
uint16_t uc_i2c_id;
struct radeon_i2c_chan *dp_i2c_bus;
u8 dpcp[8];
};
struct radeon_connector {
@@ -344,6 +352,8 @@ struct radeon_connector {
void *con_priv;
bool dac_load_detect;
uint16_t connector_object_id;
/* need to keep this for display port */
//
};
struct radeon_framebuffer {
@@ -351,6 +361,13 @@ struct radeon_framebuffer {
struct drm_gem_object *obj;
};
extern int radeon_dp_getsinktype(struct radeon_connector *radeon_connector);
extern void radeon_dp_getdpcp(struct radeon_connector *connector);
extern int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
uint8_t write_byte, uint8_t *read_byte);
extern struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
const char *name, bool dp, u8 i2c_id);
extern struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev,
struct radeon_i2c_bus_rec *rec,
const char *name);