[PATCH 1/2] net: thunder: Factor out DT specific code in BGX
From: David Daney <hidden>
Date: 2015-08-07 00:33:27
Also in:
linux-acpi, linux-mips, lkml, netdev
Subsystem:
arm/cavium thunder network driver, networking drivers, the rest · Maintainers:
Sunil Goutham, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Robert Richter <redacted> Separate DT code in preparation for follow-on ACPI integration. Based on code from: Tomasz Nowicki [off-list ref] Signed-off-by: Robert Richter <redacted> Signed-off-by: David Daney <redacted> --- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 48 +++++++++++++++++------ 1 file changed, 35 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index b961a89..615b2af 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c@@ -835,18 +835,28 @@ static void bgx_get_qlm_mode(struct bgx *bgx) } } -static void bgx_init_of(struct bgx *bgx, struct device_node *np) +#if IS_ENABLED(CONFIG_OF_MDIO) + +static int bgx_init_of_phy(struct bgx *bgx) { + struct device_node *np; struct device_node *np_child; u8 lmac = 0; + char bgx_sel[5]; + const char *mac; - for_each_child_of_node(np, np_child) { - struct device_node *phy_np; - const char *mac; + /* Get BGX node from DT */ + snprintf(bgx_sel, 5, "bgx%d", bgx->bgx_id); + np = of_find_node_by_name(NULL, bgx_sel); + if (!np) + return -ENODEV; - phy_np = of_parse_phandle(np_child, "phy-handle", 0); - if (phy_np) - bgx->lmac[lmac].phydev = of_phy_find_device(phy_np); + for_each_child_of_node(np, np_child) { + struct device_node *phy_np = of_parse_phandle(np_child, + "phy-handle", 0); + if (!phy_np) + continue; + bgx->lmac[lmac].phydev = of_phy_find_device(phy_np); mac = of_get_mac_address(np_child); if (mac)
@@ -858,6 +868,21 @@ static void bgx_init_of(struct bgx *bgx, struct device_node *np) if (lmac == MAX_LMAC_PER_BGX) break; } + return 0; +} + +#else + +static int bgx_init_of_phy(struct bgx *bgx) +{ + return -ENODEV; +} + +#endif /* CONFIG_OF_MDIO */ + +static int bgx_init_phy(struct bgx *bgx) +{ + return bgx_init_of_phy(bgx); } static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
@@ -865,8 +890,6 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) int err; struct device *dev = &pdev->dev; struct bgx *bgx = NULL; - struct device_node *np; - char bgx_sel[5]; u8 lmac; bgx = devm_kzalloc(dev, sizeof(*bgx), GFP_KERNEL);
@@ -902,10 +925,9 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) bgx_vnic[bgx->bgx_id] = bgx; bgx_get_qlm_mode(bgx); - snprintf(bgx_sel, 5, "bgx%d", bgx->bgx_id); - np = of_find_node_by_name(NULL, bgx_sel); - if (np) - bgx_init_of(bgx, np); + err = bgx_init_phy(bgx); + if (err) + goto err_enable; bgx_init_hw(bgx);
--
1.9.1