diff options
| author | Wyatt Wood <wyatt.wood@amd.com> | 2021-01-18 22:51:02 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-02-09 23:48:11 +0300 |
| commit | 148816f93fa0db19029dc91e09ad7842251fc720 (patch) | |
| tree | 3a2aa0d0b7e62aca3af32b9f448b16495451f166 /drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | |
| parent | 7a03fdf628af0c66ab2714278f786b7b97a2a1ac (diff) | |
| download | linux-148816f93fa0db19029dc91e09ad7842251fc720.tar.xz | |
drm/amd/display: Initialize dmub_rb_cmd unions to 0
[Why]
Since dmub_rb_cmds are not initialized to 0,
the header is filled with invalid data.
This is causing issues on the fw side.
[How]
Initialize dmub_rb_cmd unions to 0.
Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Reviewed-by: Josip Pavic <Josip.Pavic@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c index 0cf130dc4e52..453aaa5757bd 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c @@ -57,6 +57,7 @@ static void dmub_abm_enable_fractional_pwm(struct dc_context *dc) union dmub_rb_cmd cmd; uint32_t fractional_pwm = (dc->dc->config.disable_fractional_pwm == false) ? 1 : 0; + memset(&cmd, 0, sizeof(cmd)); cmd.abm_set_pwm_frac.header.type = DMUB_CMD__ABM; cmd.abm_set_pwm_frac.header.sub_type = DMUB_CMD__ABM_SET_PWM_FRAC; cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.fractional_pwm = fractional_pwm; @@ -135,6 +136,7 @@ static bool dmub_abm_set_level(struct abm *abm, uint32_t level) union dmub_rb_cmd cmd; struct dc_context *dc = abm->ctx; + memset(&cmd, 0, sizeof(cmd)); cmd.abm_set_level.header.type = DMUB_CMD__ABM; cmd.abm_set_level.header.sub_type = DMUB_CMD__ABM_SET_LEVEL; cmd.abm_set_level.abm_set_level_data.level = level; @@ -160,6 +162,7 @@ static bool dmub_abm_init_config(struct abm *abm, // Copy iramtable into cw7 memcpy(dc->dmub_srv->dmub->scratch_mem_fb.cpu_addr, (void *)src, bytes); + memset(&cmd, 0, sizeof(cmd)); // Fw will copy from cw7 to fw_state cmd.abm_init_config.header.type = DMUB_CMD__ABM; cmd.abm_init_config.header.sub_type = DMUB_CMD__ABM_INIT_CONFIG; |