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net: stmmac: dwxgmac2: Do not disable whole RX in dma_stop_rx()

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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 <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-05-24 10:20:24 +02:00 committed by David S. Miller
parent a8b91b30d1
commit eaabcd9e4e
1 changed files with 0 additions and 4 deletions
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4
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
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@ -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,