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msm: pcie: add PCIe GDSC disable/enable for DRV suspend/resume

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As part of DRV suspend/resume, APPS vote for PCIe GDSC needs to
be properly handled. Have PCIe bus driver disable/enable PCIe
GDSC during DRV suspend/resume.

Change-Id: I6c5f901b089f8684b6d1d909f8176d08e39f2264
Signed-off-by: Tony Truong <truong@codeaurora.org>
This commit is contained in:
Tony Truong 2020-03-03 13:19:33 -08:00
commit 47cf7dd8d0
1 changed files with 4 additions and 0 deletions
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4
drivers/pci/controller/pci-msm.c
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@ -6866,6 +6866,8 @@ static int msm_pcie_drv_resume(struct msm_pcie_dev_t *pcie_dev)
msm_pcie_vreg_init(pcie_dev);
regulator_enable(pcie_dev->gdsc);
if (pcie_dev->icc_path) {
ret = icc_set_bw(pcie_dev->icc_path, ICC_AVG_BW, ICC_PEAK_BW);
if (ret)
@ -7028,6 +7030,8 @@ static int msm_pcie_drv_suspend(struct msm_pcie_dev_t *pcie_dev,
pcie_dev->rc_idx, ret);
}
regulator_disable(pcie_dev->gdsc);
msm_pcie_vreg_deinit(pcie_dev);
mutex_unlock(&pcie_dev->setup_lock);