4.19-stable review patch. If anyone has any objections, please let me know.
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From: Evan Quan evan.quan@amd.com
commit f5742ec36422a39b57f0256e4847f61b3c432f8c upstream.
Set sampling period as 500ms to provide a smooth power reading output. Also, correct the register for power reading.
Signed-off-by: Evan Quan evan.quan@amd.com Reviewed-by: Feifei Xu Feifei.Xu@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c @@ -3487,14 +3487,14 @@ static int smu7_get_gpu_power(struct pp_
smum_send_msg_to_smc(hwmgr, PPSMC_MSG_PmStatusLogStart); cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, - ixSMU_PM_STATUS_94, 0); + ixSMU_PM_STATUS_95, 0);
for (i = 0; i < 10; i++) { - mdelay(1); + mdelay(500); smum_send_msg_to_smc(hwmgr, PPSMC_MSG_PmStatusLogSample); tmp = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, - ixSMU_PM_STATUS_94); + ixSMU_PM_STATUS_95); if (tmp != 0) break; }