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3 Commits

Author SHA1 Message Date
Zhang Changzhong
f3b11449a4 net: ethernet: dwmac: remove redundant null check before clk_disable_unprepare() 
Because clk_prepare_enable() and clk_disable_unprepare() already checked
NULL clock parameter, so the additional checks are unnecessary, just
remove them.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2020-09-07 13:34:51 -07:00
Dan Carpenter
f6c1fb0a76 net: ethernet: dwmac: Fix an error code in imx_dwmac_probe() 
The code is return PTR_ERR(NULL) which is zero or success.  We should
return -ENOMEM instead.

Fixes: 94abdad697 ("net: ethernet: dwmac: add ethernet glue logic for NXP imx8 chip")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-06-04 15:51:25 -07:00
Fugang Duan
94abdad697 net: ethernet: dwmac: add ethernet glue logic for NXP imx8 chip 
NXP imx8 family like imx8mp/imx8dxl chips support Synopsys MAC 5.10a IP.
This patch adds settings for NXP imx8 glue layer:
- clocks
- dwmac address width
- phy interface mode selection
- adjust rgmii txclk rate

v2:
- adjust code sequences in order to have reverse christmas
  tree local variable ordering.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2020-05-29 17:01:26 -07:00