From 2c7be0ac566e4706f45c4cc82b2d767f0e9f7add Mon Sep 17 00:00:00 2001 From: Suman Tripathi Date: Tue, 23 Jun 2015 14:47:15 +0530 Subject: [PATCH] drivers: net: xgene: Implement the backward compatibility with the old and new firmware w.r.t Tx completion IRQ interrupt. This patch implements the backward compatibility with the old firmware where the Tx completion IRQ interrupt was absent whereas incase of new firmware the Tx completion IRQ interrupt is present. Signed-off-by: Iyappan Subramanian Signed-off-by: Suman Tripathi Signed-off-by: David S. Miller --- drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index 17f0df508f72..0d6ac7aad268 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -1024,11 +1024,13 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata) if (pdata->phy_mode != PHY_INTERFACE_MODE_RGMII) { ret = platform_get_irq(pdev, 1); if (ret <= 0) { - dev_err(dev, "Unable to get ENET Tx completion IRQ\n"); - ret = ret ? : -ENXIO; - return ret; + pdata->cq_cnt = 0; + dev_info(dev, "Unable to get Tx completion IRQ," + "using Rx IRQ instead\n"); + } else { + pdata->cq_cnt = XGENE_MAX_TXC_RINGS; + pdata->txc_irq = ret; } - pdata->txc_irq = ret; } pdata->clk = devm_clk_get(&pdev->dev, NULL); @@ -1105,13 +1107,11 @@ static void xgene_enet_setup_ops(struct xgene_enet_pdata *pdata) pdata->mac_ops = &xgene_sgmac_ops; pdata->port_ops = &xgene_sgport_ops; pdata->rm = RM1; - pdata->cq_cnt = XGENE_MAX_TXC_RINGS; break; default: pdata->mac_ops = &xgene_xgmac_ops; pdata->port_ops = &xgene_xgport_ops; pdata->rm = RM0; - pdata->cq_cnt = XGENE_MAX_TXC_RINGS; break; } -- 2.20.1