diff options
| author | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2023-03-16 13:40:59 +0530 |
|---|---|---|
| committer | Lorenzo Pieralisi <lpieralisi@kernel.org> | 2023-04-11 11:31:10 +0200 |
| commit | 2542e16c392508800f1d9037feee881a9c444951 (patch) | |
| tree | a33078b80748b61854469fa5602a0b78a3e9a64b /drivers/pci/controller/dwc | |
| parent | fe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff) | |
PCI: qcom: Fix the incorrect register usage in v2.7.0 config
Qcom PCIe IP version v2.7.0 and its derivatives don't contain the
PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT register. Instead, they have the new
PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2 register. So fix the incorrect
register usage which is modifying a different register.
Also in this IP version, this register change doesn't depend on MSI
being enabled. So remove that check also.
Link: https://lore.kernel.org/r/20230316081117.14288-2-manivannan.sadhasivam@linaro.org
Fixes: ed8cc3b1fc84 ("PCI: qcom: Add support for SDM845 PCIe controller")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: <stable@vger.kernel.org> # 5.6+
Diffstat (limited to 'drivers/pci/controller/dwc')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-qcom.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index a232b04af048..89d748cc4b8a 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -1279,11 +1279,9 @@ static int qcom_pcie_init_2_7_0(struct qcom_pcie *pcie) val &= ~REQ_NOT_ENTR_L1; writel(val, pcie->parf + PCIE20_PARF_PM_CTRL); - if (IS_ENABLED(CONFIG_PCI_MSI)) { - val = readl(pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT); - val |= BIT(31); - writel(val, pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT); - } + val = readl(pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2); + val |= BIT(31); + writel(val, pcie->parf + PCIE20_PARF_AXI_MSTR_WR_ADDR_HALT_V2); return 0; err_disable_clocks: |