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ufs-host: qcom: Disable h8 with clk gate and scale

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Work-around for hangs during bootup.
No ramdumps/tools available to debug during BU.
So, disable hibern8 during clock gating.
This would let the clocks to be off thus allowing CxPC.

Clock scaling needs SYS1CLK_1US_REG and
DME_VS_CORE_CLK_CTRL.MAX_CORE_CLK_1US_CYCLES and
PA_VS_CORE_CLK_40NS_CYCLES to be defined for 403Mhz.
Disable clock scaling until values are determined.

Change-Id: I702a561ecce627a8b00a676fc2e6118ce1ebc4a0
Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
This commit is contained in:
Asutosh Das 2022-11-07 08:39:41 -08:00 committed by Gerrit - the friendly Code Review server
parent 4579ad4b9d
commit 8c74b78d69
1 changed files with 1 additions and 4 deletions
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5
drivers/ufs/host/ufs-qcom.c
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@ -2075,11 +2075,8 @@ static void ufs_qcom_set_caps(struct ufs_hba *hba)
if (!host->disable_lpm) {
hba->caps |= UFSHCD_CAP_CLK_GATING |
UFSHCD_CAP_HIBERN8_WITH_CLK_GATING |
UFSHCD_CAP_CLK_SCALING | UFSHCD_CAP_AUTO_BKOPS_SUSPEND |
UFSHCD_CAP_RPM_AUTOSUSPEND;
UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
hba->caps |= UFSHCD_CAP_WB_EN;
hba->caps |= UFSHCD_CAP_AGGR_POWER_COLLAPSE;
}
hba->caps |= UFSHCD_CAP_CRYPTO;