drm/amd/powerplay/smu7_hwmgr: replace blocking delay with non-blocking

This driver currently contains a repeated 500ms blocking delay call
which causes frequent major buffer underruns in PulseAudio. This patch
fixes this issue by replacing the blocking delay with a non-blocking
sleep call.

Signed-off-by: Yrjan Skrimstad <yrjan@skrimstad.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index c5986d2..487aeee 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -3495,7 +3495,7 @@ static int smu7_get_gpu_power(struct pp_hwmgr *hwmgr, u32 *query)
                                                        ixSMU_PM_STATUS_95, 0);
 
        for (i = 0; i < 10; i++) {
-               mdelay(500);
+               msleep(500);
                smum_send_msg_to_smc(hwmgr, PPSMC_MSG_PmStatusLogSample);
                tmp = cgs_read_ind_register(hwmgr->device,
                                                CGS_IND_REG__SMC,