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| author | Jiri Kosina <jkosina@suse.com> | 2025-07-31 22:36:25 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.com> | 2025-07-31 22:36:25 +0200 |
| commit | e9ef810dfee7a2227da9d423aecb0ced35faddbe (patch) | |
| tree | 52befbbbeacbd9340f90884dee840be3f492d3e1 /drivers/pci/controller/dwc/pcie-qcom-ep.c | |
| parent | 3a1d22bd85381c4e358fc3340e776c3a3223a1d0 (diff) | |
| parent | 3a807f3ff9eaaeead81576c5a72d226d519a2fe7 (diff) | |
Merge branch 'for-6.17/amd-sfh' into for-linus
- add support for operating modes (Basavaraj Natikar)
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-qcom-ep.c')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-qcom-ep.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c index 46b1c6d19974..bf7c6ac0f3e3 100644 --- a/drivers/pci/controller/dwc/pcie-qcom-ep.c +++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c @@ -60,6 +60,7 @@ #define PARF_DEVICE_TYPE 0x1000 #define PARF_BDF_TO_SID_CFG 0x2c00 #define PARF_INT_ALL_5_MASK 0x2dcc +#define PARF_INT_ALL_3_MASK 0x2e18 /* PARF_INT_ALL_{STATUS/CLEAR/MASK} register fields */ #define PARF_INT_ALL_LINK_DOWN BIT(1) @@ -132,6 +133,9 @@ /* PARF_INT_ALL_5_MASK fields */ #define PARF_INT_ALL_5_MHI_RAM_DATA_PARITY_ERR BIT(0) +/* PARF_INT_ALL_3_MASK fields */ +#define PARF_INT_ALL_3_PTM_UPDATING BIT(4) + /* ELBI registers */ #define ELBI_SYS_STTS 0x08 #define ELBI_CS2_ENABLE 0xa4 @@ -261,7 +265,7 @@ static void qcom_pcie_ep_configure_tcsr(struct qcom_pcie_ep *pcie_ep) } } -static int qcom_pcie_dw_link_up(struct dw_pcie *pci) +static bool qcom_pcie_dw_link_up(struct dw_pcie *pci) { struct qcom_pcie_ep *pcie_ep = to_pcie_ep(pci); u32 reg; @@ -497,6 +501,10 @@ static int qcom_pcie_perst_deassert(struct dw_pcie *pci) writel_relaxed(val, pcie_ep->parf + PARF_INT_ALL_5_MASK); } + val = readl_relaxed(pcie_ep->parf + PARF_INT_ALL_3_MASK); + val &= ~PARF_INT_ALL_3_PTM_UPDATING; + writel_relaxed(val, pcie_ep->parf + PARF_INT_ALL_3_MASK); + ret = dw_pcie_ep_init_registers(&pcie_ep->pci.ep); if (ret) { dev_err(dev, "Failed to complete initialization: %d\n", ret); |