From eaabcd9e4ec369061a300c00ccc40dde9bc11044 Mon Sep 17 00:00:00 2001 From: Jose Abreu Date: Fri, 24 May 2019 10:20:24 +0200 Subject: [PATCH] net: stmmac: dwxgmac2: Do not disable whole RX in dma_stop_rx() We don't need to disable the whole RX when dma_stop_rx() is called because there may be the need of just disabling 1 DMA channel. This is also needed for stmmac Flow Control selftest. Signed-off-by: Jose Abreu Cc: Joao Pinto Cc: David S. Miller Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c index e79037f..7861a93 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c @@ -299,10 +299,6 @@ static void dwxgmac2_dma_stop_rx(void __iomem *ioaddr, u32 chan) value = readl(ioaddr + XGMAC_DMA_CH_RX_CONTROL(chan)); value &= ~XGMAC_RXST; writel(value, ioaddr + XGMAC_DMA_CH_RX_CONTROL(chan)); - - value = readl(ioaddr + XGMAC_RX_CONFIG); - value &= ~XGMAC_CONFIG_RE; - writel(value, ioaddr + XGMAC_RX_CONFIG); } static int dwxgmac2_dma_interrupt(void __iomem *ioaddr, -- 2.7.4