drm/amdgpu/powerplay: Program a calculated value as Deep Sleep clock.

BugLink: http://bugs.launchpad.net/bugs/1546572

This replaces programming of a hardcoded value.
Signed-off-by: David Rokhvarg <David.Rokhvarg@amd.com>
(cherry picked from commit c90e5d20)
Signed-off-by: Alberto Milone <alberto.milone@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c

@@ -789,9 +789,11 @@ static int cz_tf_set_deep_sleep_sclk_threshold(struct pp_hwmgr *hwmgr,
 		if (clks == 0)
 			clks = CZ_MIN_DEEP_SLEEP_SCLK;
 
+		PP_DBG_LOG("Setting Deep Sleep Clock: %d\n", clks);
+
 		smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
-					  PPSMC_MSG_SetMinDeepSleepSclk,
-						CZ_MIN_DEEP_SLEEP_SCLK);
+				PPSMC_MSG_SetMinDeepSleepSclk,
+				clks);
 	}
 
 	return 0;