diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c index 062a46543887..ca7989e4932b 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c @@ -150,7 +150,7 @@ static void dce_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait) } } -static void dce_dmcu_setup_psr(struct dmcu *dmcu, +static bool dce_dmcu_setup_psr(struct dmcu *dmcu, struct dc_link *link, struct psr_context *psr_context) { @@ -261,6 +261,8 @@ static void dce_dmcu_setup_psr(struct dmcu *dmcu, /* notifyDMCUMsg */ REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); + + return true; } static bool dce_is_dmcu_initialized(struct dmcu *dmcu) @@ -545,24 +547,25 @@ static void dcn10_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait) * least a few frames. Should never hit the max retry assert below. */ if (wait == true) { - for (retryCount = 0; retryCount <= 1000; retryCount++) { - dcn10_get_dmcu_psr_state(dmcu, &psr_state); - if (enable) { - if (psr_state != 0) - break; - } else { - if (psr_state == 0) - break; + for (retryCount = 0; retryCount <= 1000; retryCount++) { + dcn10_get_dmcu_psr_state(dmcu, &psr_state); + if (enable) { + if (psr_state != 0) + break; + } else { + if (psr_state == 0) + break; + } + udelay(500); } - udelay(500); - } - /* assert if max retry hit */ - ASSERT(retryCount <= 1000); + /* assert if max retry hit */ + if (retryCount >= 1000) + ASSERT(0); } } -static void dcn10_dmcu_setup_psr(struct dmcu *dmcu, +static bool dcn10_dmcu_setup_psr(struct dmcu *dmcu, struct dc_link *link, struct psr_context *psr_context) { @@ -577,7 +580,7 @@ static void dcn10_dmcu_setup_psr(struct dmcu *dmcu, /* If microcontroller is not running, do nothing */ if (dmcu->dmcu_state != DMCU_RUNNING) - return; + return false; link->link_enc->funcs->psr_program_dp_dphy_fast_training(link->link_enc, psr_context->psrExitLinkTrainingRequired); @@ -677,6 +680,11 @@ static void dcn10_dmcu_setup_psr(struct dmcu *dmcu, /* notifyDMCUMsg */ REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000); + + return true; } static void dcn10_psr_wait_loop( |