diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c index 6d4a1ffab5ed..a07f7e685d28 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c @@ -447,6 +447,9 @@ void dcn35_smu_set_dtbclk(struct clk_mgr_internal *clk_mgr, bool enable) void dcn35_vbios_smu_enable_48mhz_tmdp_refclk_pwrdwn(struct clk_mgr_internal *clk_mgr, bool enable) { + if (!clk_mgr->smu_present) + return; + dcn35_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_EnableTmdp48MHzRefclkPwrDown, @@ -458,6 +461,9 @@ int dcn35_smu_exit_low_power_state(struct clk_mgr_internal *clk_mgr) { int retv; + if (!clk_mgr->smu_present) + return 0; + retv = dcn35_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_DispPsrExit, @@ -470,6 +476,9 @@ int dcn35_smu_get_ips_supported(struct clk_mgr_internal *clk_mgr) { int retv; + if (!clk_mgr->smu_present) + return 0; + retv = dcn35_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_QueryIPS2Support, @@ -481,6 +490,9 @@ int dcn35_smu_get_ips_supported(struct clk_mgr_internal *clk_mgr) void dcn35_smu_write_ips_scratch(struct clk_mgr_internal *clk_mgr, uint32_t param) { + if (!clk_mgr->smu_present) + return; + REG_WRITE(MP1_SMN_C2PMSG_71, param); //smu_print("%s: write_ips_scratch = %x\n", __func__, param); } @@ -489,6 +501,9 @@ uint32_t dcn35_smu_read_ips_scratch(struct clk_mgr_internal *clk_mgr) { uint32_t retv; + if (!clk_mgr->smu_present) + return 0; + retv = REG_READ(MP1_SMN_C2PMSG_71); //smu_print("%s: dcn35_smu_read_ips_scratch = %x\n", __func__, retv); return retv; |