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Merge "pci: msm: Update the L2_entry status polling logic"

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qctecmdr 2024-03-04 01:47:32 -08:00 committed by Gerrit - the friendly Code Review server
commit c22f2506bb
1 changed files with 12 additions and 6 deletions
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18
drivers/pci/controller/pci-msm.c
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@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. */
/* Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. */
#include <dt-bindings/regulator/qcom,rpmh-regulator-levels.h>
#include <dt-bindings/interconnect/qcom,icc.h>
@ -107,6 +107,12 @@
#define PCIE20_PARF_DEBUG_CNT_IN_L1SUB_L1 (0xc84)
#define PCIE20_PARF_DEBUG_CNT_IN_L1SUB_L2 (0xc88)
#define PCIE20_PARF_PM_STTS_1 (0x28)
#define PM_STATE_L0 0
#define PM_STATE_L0s 1
#define PM_STATE_L1 2
#define PM_STATE_L2 3
#define PCIE_LINK_PM_STATE(val) ((val & (7 << 7)) >> 7)
#define PCIE_LINK_IN_L2_STATE(val) ((PCIE_LINK_PM_STATE(val)) == PM_STATE_L2)
#define PCIE20_PARF_L1SS_SLEEP_MODE_HANDLER_STATUS (0x4D0)
#define PCIE20_PARF_L1SS_SLEEP_MODE_HANDLER_CFG (0x4D4)
#define PCIE20_PARF_CORE_ERRORS (0x3C0)
@ -9305,14 +9311,14 @@ static int msm_pcie_pm_suspend(struct pci_dev *dev,
PCIE_DBG(pcie_dev, "RC%d: PME_TURNOFF_MSG is sent out\n",
pcie_dev->rc_idx);
ret_l23 = readl_poll_timeout((pcie_dev->parf
+ PCIE20_PARF_PM_STTS), val, (val & BIT(5)), 10000,
pcie_dev->l23_rdy_poll_timeout);
ret_l23 = readl_poll_timeout((pcie_dev->parf + PCIE20_PARF_PM_STTS_1),
val, PCIE_LINK_IN_L2_STATE(val),
9000, pcie_dev->l23_rdy_poll_timeout);
/* check L23_Ready */
PCIE_DBG(pcie_dev, "RC%d: PCIE20_PARF_PM_STTS is 0x%x.\n",
PCIE_DBG(pcie_dev, "RC%d: PCIE20_PARF_PM_STTS_1 is 0x%x.\n",
pcie_dev->rc_idx,
readl_relaxed(pcie_dev->parf + PCIE20_PARF_PM_STTS));
readl_relaxed(pcie_dev->parf + PCIE20_PARF_PM_STTS_1));
if (!ret_l23)
PCIE_DBG(pcie_dev, "RC%d: PM_Enter_L23 is received\n",
pcie_dev->rc_idx);