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[5/7] PCI: epf-mhi: Add support for SM8450

Message ID 20230606115814.53319-6-manivannan.sadhasivam@linaro.org
State Superseded
Headers show
Series Improvements to Qcom PCIe EP and EPF MHI drivers | expand

Commit Message

Manivannan Sadhasivam June 6, 2023, 11:58 a.m. UTC 
Add support for Qualcomm Snapdragon SM8450 SoC to the EPF driver. SM8450
has the dedicated PID (0x0306) and supports eDMA. Currently, it has no
fixed PCI class, so it is being advertised as "PCI_CLASS_OTHERS".

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/pci/endpoint/functions/pci-epf-mhi.c | 22 +++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c
index 9c93a26ce337..f4d1d60bde56 100644
--- a/drivers/pci/endpoint/functions/pci-epf-mhi.c
+++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c
@@ -97,6 +97,23 @@  static const struct pci_epf_mhi_ep_info sdx55_info = {
 	.mru = 0x8000,
 };
 
+static struct pci_epf_header sm8450_header = {
+	.vendorid = PCI_VENDOR_ID_QCOM,
+	.deviceid = 0x0306,
+	.baseclass_code = PCI_CLASS_OTHERS,
+	.interrupt_pin = PCI_INTERRUPT_INTA,
+};
+
+static const struct pci_epf_mhi_ep_info sm8450_info = {
+	.config = &mhi_v1_config,
+	.epf_header = &sm8450_header,
+	.bar_num = BAR_0,
+	.epf_flags = PCI_BASE_ADDRESS_MEM_TYPE_32,
+	.msi_count = 32,
+	.mru = 0x8000,
+	.flags = MHI_EPF_USE_DMA,
+};
+
 struct pci_epf_mhi {
 	const struct pci_epf_mhi_ep_info *info;
 	struct mhi_ep_cntrl mhi_cntrl;
@@ -656,9 +673,8 @@  static int pci_epf_mhi_probe(struct pci_epf *epf,
 }
 
 static const struct pci_epf_device_id pci_epf_mhi_ids[] = {
-	{
-		.name = "sdx55", .driver_data = (kernel_ulong_t)&sdx55_info,
-	},
+	{ .name = "sdx55", .driver_data = (kernel_ulong_t)&sdx55_info },
+	{ .name = "sm8450", .driver_data = (kernel_ulong_t)&sm8450_info },
 	{},
 };