2023-07-24 13:35:00

by Praveenkumar I

Subject: [PATCH 0/1] Set may payload size for IPQ9574

IPQ9574 supports 256 bytes of payload size and setting the max will allow
to use it when capable partner is connected.

Praveenkumar I (1):
PCI: qcom: Add early fixup to set the max payload size for IPQ9574

drivers/pci/controller/dwc/pcie-qcom.c | 6 ++++++
1 file changed, 6 insertions(+)

--
2.34.1

2023-07-24 13:35:14

by Praveenkumar I

Subject: [PATCH 1/1] PCI: qcom: Add early fixup to set the max payload size for IPQ9574

Set 256 bytes as payload size for IPQ9574 via early fixup. This allows
PCIe RC to use the max payload size when a capable link partner is
connected.

Signed-off-by: Praveenkumar I <[email protected]>
---
This patch depends on the below series which adds support for PCIe
controllers in IPQ9574
https://lore.kernel.org/linux-arm-msm/[email protected]/

drivers/pci/controller/dwc/pcie-qcom.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index cee4e400a695..6695bc3b122f 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1631,6 +1631,11 @@ static void qcom_fixup_class(struct pci_dev *dev)
{
dev->class = PCI_CLASS_BRIDGE_PCI_NORMAL;
}
+
+static void qcom_fixup_mps_256(struct pci_dev *dev)
+{
+ pcie_set_mps(dev, 256);
+}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x0101, qcom_fixup_class);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x0104, qcom_fixup_class);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x0106, qcom_fixup_class);
@@ -1638,6 +1643,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x0107, qcom_fixup_class);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x0302, qcom_fixup_class);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x1000, qcom_fixup_class);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x1001, qcom_fixup_class);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x1108, qcom_fixup_mps_256);

static const struct dev_pm_ops qcom_pcie_pm_ops = {
NOIRQ_SYSTEM_SLEEP_PM_OPS(qcom_pcie_suspend_noirq, qcom_pcie_resume_noirq)
--
2.34.1