When PMFW is really busy, it will respond with 0xFC. However, it doesn't change the response register state when it becomes free. Driver should retry and proceed to send message if the response status is 0xFC. Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx> --- drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c index 590a6ed12d54..92161b9d8c1a 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c @@ -297,7 +297,6 @@ int smu_cmn_send_msg_without_waiting(struct smu_context *smu, reg = __smu_cmn_poll_stat(smu); res = __smu_cmn_reg2errno(smu, reg); if (reg == SMU_RESP_NONE || - reg == SMU_RESP_BUSY_OTHER || res == -EREMOTEIO) goto Out; __smu_cmn_send_msg(smu, msg_index, param); @@ -391,7 +390,6 @@ int smu_cmn_send_smc_msg_with_param(struct smu_context *smu, reg = __smu_cmn_poll_stat(smu); res = __smu_cmn_reg2errno(smu, reg); if (reg == SMU_RESP_NONE || - reg == SMU_RESP_BUSY_OTHER || res == -EREMOTEIO) { __smu_cmn_reg_print_error(smu, reg, index, param, msg); goto Out; -- 2.25.1