[PATCH net-next 14/14] net: ethernet: mtk_eth_soc: use iopoll.h macro for DMA init
Andrew Lunn
andrew at lunn.ch
Thu Apr 22 13:20:48 BST 2021
On Wed, Apr 21, 2021 at 09:09:14PM -0700, Ilya Lipnitskiy wrote:
> Replace a tight busy-wait loop without a pause with a standard
> readx_poll_timeout_atomic routine with a 5 us poll period.
>
> Tested by booting a MT7621 device to ensure the driver initializes
> properly.
>
> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy at gmail.com>
> ---
> drivers/net/ethernet/mediatek/mtk_eth_soc.c | 29 +++++++++------------
> drivers/net/ethernet/mediatek/mtk_eth_soc.h | 2 +-
> 2 files changed, 14 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> index 8c863322587e..720d73d0c007 100644
> --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
> @@ -2037,25 +2037,22 @@ static int mtk_set_features(struct net_device *dev, netdev_features_t features)
> /* wait for DMA to finish whatever it is doing before we start using it again */
> static int mtk_dma_busy_wait(struct mtk_eth *eth)
> {
> - unsigned long t_start = jiffies;
> + u32 val;
> + int ret;
> + unsigned int reg;
Nit:
Reverse christmass tree.
Reviewed-by: Andrew Lunn <andrew at lunn.ch>
Andrew
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