From a8b91b30d11dbcbab074a39a6dccabe19aa70715 Mon Sep 17 00:00:00 2001 From: Jose Abreu <Jose.Abreu@synopsys.com> Date: Fri, 24 May 2019 10:20:23 +0200 Subject: [PATCH] net: stmmac: dwmac4/5: 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 <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> --- drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c index 545cb9c474334..99f8a391964c9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c @@ -88,10 +88,6 @@ void dwmac4_dma_stop_rx(void __iomem *ioaddr, u32 chan) value &= ~DMA_CONTROL_SR; writel(value, ioaddr + DMA_CHAN_RX_CONTROL(chan)); - - value = readl(ioaddr + GMAC_CONFIG); - value &= ~GMAC_CONFIG_RE; - writel(value, ioaddr + GMAC_CONFIG); } void dwmac4_set_tx_ring_len(void __iomem *ioaddr, u32 len, u32 chan) -- 2.30.2