[PATCH net-next v13 09/15] net: stmmac: dwmac-loongson: Introduce PCI device info data
From: Yanteng Si <hidden>
Date: 2024-05-29 10:20:03
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Just introduce PCI device info data to prepare for later ACPI-base support. Loongson machines may use UEFI (implies ACPI) or PMON/UBOOT (implies FDT) as the BIOS. The BIOS type has no relationship with device types, which means: machines can be either ACPI-based or FDT-based. Signed-off-by: Feiyang Chen <redacted> Signed-off-by: Yinggang Gu <redacted> Signed-off-by: Yanteng Si <redacted> --- .../ethernet/stmicro/stmmac/dwmac-loongson.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
index 0289956e274b..fec2aa0607d4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c@@ -11,6 +11,10 @@ #define PCI_DEVICE_ID_LOONGSON_GMAC 0x7a03 +struct stmmac_pci_info { + int (*setup)(struct plat_stmmacenet_data *plat); +}; + static void loongson_default_data(struct plat_stmmacenet_data *plat) { plat->clk_csr = 2; /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
@@ -54,9 +58,14 @@ static int loongson_gmac_data(struct plat_stmmacenet_data *plat) return 0; } +static struct stmmac_pci_info loongson_gmac_pci_info = { + .setup = loongson_gmac_data, +}; + static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct plat_stmmacenet_data *plat; + struct stmmac_pci_info *info; struct stmmac_resources res; struct device_node *np; int ret, i, phy_mode;
@@ -107,6 +116,11 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id break; } + info = (struct stmmac_pci_info *)id->driver_data; + ret = info->setup(plat); + if (ret) + goto err_disable_device; + plat->bus_id = of_alias_get_id(np, "ethernet"); if (plat->bus_id < 0) plat->bus_id = pci_dev_id(pdev);
@@ -122,7 +136,6 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id pci_set_master(pdev); - loongson_gmac_data(plat); pci_enable_msi(pdev); memset(&res, 0, sizeof(res)); res.addr = pcim_iomap_table(pdev)[0];
@@ -224,7 +237,7 @@ static SIMPLE_DEV_PM_OPS(loongson_dwmac_pm_ops, loongson_dwmac_suspend, loongson_dwmac_resume); static const struct pci_device_id loongson_dwmac_id_table[] = { - { PCI_DEVICE_DATA(LOONGSON, GMAC, NULL) }, + { PCI_DEVICE_DATA(LOONGSON, GMAC, &loongson_gmac_pci_info) }, {} }; MODULE_DEVICE_TABLE(pci, loongson_dwmac_id_table);
--
2.31.4