| From a3e860a83397bf761ec1128a3f0ba186445992c6 Mon Sep 17 00:00:00 2001 |
| From: Joakim Zhang <qiangqing.zhang@nxp.com> |
| Date: Thu, 25 Feb 2021 17:01:10 +0800 |
| Subject: net: stmmac: stop each tx channel independently |
| |
| From: Joakim Zhang <qiangqing.zhang@nxp.com> |
| |
| commit a3e860a83397bf761ec1128a3f0ba186445992c6 upstream. |
| |
| If clear GMAC_CONFIG_TE bit, it would stop all tx channels, but users |
| may only want to stop specific tx channel. |
| |
| Fixes: 48863ce5940f ("stmmac: add DMA support for GMAC 4.xx") |
| Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> |
| Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 4 ---- |
| 1 file changed, 4 deletions(-) |
| |
| --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c |
| +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c |
| @@ -60,10 +60,6 @@ void dwmac4_dma_stop_tx(void __iomem *io |
| |
| value &= ~DMA_CONTROL_ST; |
| writel(value, ioaddr + DMA_CHAN_TX_CONTROL(chan)); |
| - |
| - value = readl(ioaddr + GMAC_CONFIG); |
| - value &= ~GMAC_CONFIG_TE; |
| - writel(value, ioaddr + GMAC_CONFIG); |
| } |
| |
| void dwmac4_dma_start_rx(void __iomem *ioaddr, u32 chan) |
