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authorAlex Deucher <alexdeucher@gmail.com>2010-08-05 21:21:16 -0400
committerDave Airlie <airlied@redhat.com>2010-08-10 10:46:48 +1000
commitf376b94fbc0a313a606748206340cbef6c2adf6b (patch)
tree79687e8c214bf70251c242f8042bc46d6fc61020 /drivers/gpu/drm/radeon/radeon_mode.h
parent1729dd33d20bddf1b3f371f3090f0cfd6be50b7a (diff)
downloadop-kernel-dev-f376b94fbc0a313a606748206340cbef6c2adf6b.zip
op-kernel-dev-f376b94fbc0a313a606748206340cbef6c2adf6b.tar.gz
drm/radeon/kms: unify i2c handling
Previously we added i2c buses as needed when enumerating connectors power management, etc. This only exposed the actual buses used and could have lead to the same buse getting created more than once if one buses was used for more than one purpose. This patch sets up all i2c buses on the card in one place and users of the buses just point back to the one instance. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_mode.h')
-rw-r--r--drivers/gpu/drm/radeon/radeon_mode.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 71aea40..02d4e2a 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -82,6 +82,8 @@ enum radeon_hpd_id {
RADEON_HPD_NONE = 0xff,
};
+#define RADEON_MAX_I2C_BUS 16
+
/* radeon gpio-based i2c
* 1. "mask" reg and bits
* grabs the gpio pins for software use
@@ -445,6 +447,15 @@ extern void atombios_dig_transmitter_setup(struct drm_encoder *encoder,
extern int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
uint8_t write_byte, uint8_t *read_byte);
+extern void radeon_i2c_init(struct radeon_device *rdev);
+extern void radeon_i2c_fini(struct radeon_device *rdev);
+extern void radeon_combios_i2c_init(struct radeon_device *rdev);
+extern void radeon_atombios_i2c_init(struct radeon_device *rdev);
+extern void radeon_i2c_add(struct radeon_device *rdev,
+ struct radeon_i2c_bus_rec *rec,
+ const char *name);
+extern struct radeon_i2c_chan *radeon_i2c_lookup(struct radeon_device *rdev,
+ struct radeon_i2c_bus_rec *i2c_bus);
extern struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
struct radeon_i2c_bus_rec *rec,
const char *name);
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