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authorAlex Deucher <[email protected]>2020-10-26 17:30:28 -0400
committerAlex Deucher <[email protected]>2020-10-27 12:01:40 -0400
commit19cc89dcb94b47a015fece85db685f1a2563a422 (patch)
tree7eeccad69ee61b29e1d39cd630d03ead1df9f405
parent923e15d634ac28c6592be12eea91921ed7409d9e (diff)
drm/amdgpu/swsmu: drop smu i2c bus on navi1x
Stop registering the SMU i2c bus on navi1x. This leads to instability issues when userspace processes mess with the bus and also seems to cause display stability issues in some cases. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1314 Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1341 Reviewed-by: Evan Quan <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
-rw-r--r--drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c25
1 files changed, 0 insertions, 25 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index 8d8081c6bd38..9cf97744b67e 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -2534,29 +2534,6 @@ static const struct i2c_algorithm navi10_i2c_algo = {
.functionality = navi10_i2c_func,
};
-static int navi10_i2c_control_init(struct smu_context *smu, struct i2c_adapter *control)
-{
- struct amdgpu_device *adev = to_amdgpu_device(control);
- int res;
-
- control->owner = THIS_MODULE;
- control->class = I2C_CLASS_SPD;
- control->dev.parent = &adev->pdev->dev;
- control->algo = &navi10_i2c_algo;
- snprintf(control->name, sizeof(control->name), "AMDGPU SMU");
-
- res = i2c_add_adapter(control);
- if (res)
- DRM_ERROR("Failed to register hw i2c, err: %d\n", res);
-
- return res;
-}
-
-static void navi10_i2c_control_fini(struct smu_context *smu, struct i2c_adapter *control)
-{
- i2c_del_adapter(control);
-}
-
static ssize_t navi10_get_gpu_metrics(struct smu_context *smu,
void **table)
{
@@ -2687,8 +2664,6 @@ static const struct pptable_funcs navi10_ppt_funcs = {
.set_default_dpm_table = navi10_set_default_dpm_table,
.dpm_set_vcn_enable = navi10_dpm_set_vcn_enable,
.dpm_set_jpeg_enable = navi10_dpm_set_jpeg_enable,
- .i2c_init = navi10_i2c_control_init,
- .i2c_fini = navi10_i2c_control_fini,
.print_clk_levels = navi10_print_clk_levels,
.force_clk_levels = navi10_force_clk_levels,
.populate_umd_state_clk = navi10_populate_umd_state_clk,