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| author | Alex Deucher <alexander.deucher@amd.com> | 2014-01-14 16:37:33 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-01-20 18:05:18 +0100 |
| commit | ab9f51c09f32351ccaaa6ab494edf07a16d3dd2a (patch) | |
| tree | 227c223adf85f6608806a49ef109e054df1e1c37 /drivers/gpu/drm/radeon/atombios_dp.c | |
| parent | drm/radeon/dp: bump i2c-over-aux retries to 7 (diff) | |
| download | linux-ab9f51c09f32351ccaaa6ab494edf07a16d3dd2a.tar.xz linux-ab9f51c09f32351ccaaa6ab494edf07a16d3dd2a.zip | |
drm/radeon/dp: use usleep_range rather than udelay
Based on common dp code proposed by Thierry Reding.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_dp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 149e09aa7a03..403ca00b8a55 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -172,7 +172,7 @@ static int radeon_dp_aux_native_write(struct radeon_connector *radeon_connector, if ((ack & DP_AUX_NATIVE_REPLY_MASK) == DP_AUX_NATIVE_REPLY_ACK) return send_bytes; else if ((ack & DP_AUX_NATIVE_REPLY_MASK) == DP_AUX_NATIVE_REPLY_DEFER) - udelay(400); + usleep_range(400, 500); else return -EIO; } @@ -206,7 +206,7 @@ static int radeon_dp_aux_native_read(struct radeon_connector *radeon_connector, if ((ack & DP_AUX_NATIVE_REPLY_MASK) == DP_AUX_NATIVE_REPLY_ACK) return ret; else if ((ack & DP_AUX_NATIVE_REPLY_MASK) == DP_AUX_NATIVE_REPLY_DEFER) - udelay(400); + usleep_range(400, 500); else if (ret == 0) return -EPROTO; else @@ -295,7 +295,7 @@ int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode, return -EREMOTEIO; case DP_AUX_NATIVE_REPLY_DEFER: DRM_DEBUG_KMS("aux_ch native defer\n"); - udelay(400); + usleep_range(500, 600); continue; default: DRM_ERROR("aux_ch invalid native reply 0x%02x\n", ack); @@ -312,7 +312,7 @@ int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode, return -EREMOTEIO; case DP_AUX_I2C_REPLY_DEFER: DRM_DEBUG_KMS("aux_i2c defer\n"); - udelay(400); + usleep_range(400, 500); break; default: DRM_ERROR("aux_i2c invalid reply 0x%02x\n", ack); |