From: Sascha Hauer <s.hauer@pengutronix.de>
To: fugang.duan@nxp.com
Cc: andrew@lunn.ch, martin.fuzzey@flowbird.group,
davem@davemloft.net, netdev@vger.kernel.org, robh+dt@kernel.org,
shawnguo@kernel.org, devicetree@vger.kernel.org, kuba@kernel.org
Subject: Re: [PATCH net v2 1/4] net: ethernet: fec: move GPR register offset and bit into DT
Date: Mon, 25 May 2020 12:48:49 +0200 [thread overview]
Message-ID: <20200525104849.GQ11869@pengutronix.de> (raw)
In-Reply-To: <1590390569-4394-2-git-send-email-fugang.duan@nxp.com>
On Mon, May 25, 2020 at 03:09:26PM +0800, fugang.duan@nxp.com wrote:
> From: Fugang Duan <fugang.duan@nxp.com>
>
> The commit da722186f654 (net: fec: set GPR bit on suspend by DT
> configuration) set the GPR reigster offset and bit in driver for
> wake on lan feature.
>
> But it introduces two issues here:
> - one SOC has two instances, they have different bit
> - different SOCs may have different offset and bit
>
> So to support wake-on-lan feature on other i.MX platforms, it should
> configure the GPR reigster offset and bit from DT.
>
> So the patch is to improve the commit da722186f654 (net: fec: set GPR
> bit on suspend by DT configuration) to support multiple ethernet
> instances on i.MX series.
>
> v2:
> * switch back to store the quirks bitmask in driver_data
>
> Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
> ---
> drivers/net/ethernet/freescale/fec_main.c | 103 ++++++++++--------------------
> 1 file changed, 34 insertions(+), 69 deletions(-)
>
> diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
> index 2e20914..4f55d30 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -86,56 +86,6 @@ static void fec_enet_itr_coal_init(struct net_device *ndev);
> #define FEC_ENET_OPD_V 0xFFF0
> #define FEC_MDIO_PM_TIMEOUT 100 /* ms */
>
> -struct fec_devinfo {
> - u32 quirks;
> - u8 stop_gpr_reg;
> - u8 stop_gpr_bit;
> -};
Honestly I like the approach of having a struct fec_devinfo for
abstracting differences between different hardware variants. It gives
you more freedom to describe the differences. Converting this back to a
single bitfield is a step backward, even when currently struct
fec_devinfo only contains a single value.
Sascha
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next prev parent reply other threads:[~2020-05-25 10:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-25 7:09 [PATCH net v2 0/4] net: ethernet: fec: move GPR reigster offset and bit into DT fugang.duan
2020-05-25 7:09 ` [PATCH net v2 1/4] net: ethernet: fec: move GPR register " fugang.duan
2020-05-25 10:48 ` Sascha Hauer [this message]
2020-05-25 15:38 ` [EXT] " Andy Duan
2020-05-25 7:09 ` [PATCH net v2 2/4] dt-bindings: fec: update the gpr property fugang.duan
2020-05-25 7:09 ` [PATCH net v2 3/4] ARM: dts: imx: add ethernet stop mode property fugang.duan
2020-05-25 13:51 ` Andrew Lunn
2020-05-25 15:39 ` [EXT] " Andy Duan
2020-05-25 7:09 ` [PATCH net v2 4/4] ARM: dts: imx6qdl-sabresd: enable fec wake-on-lan fugang.duan
2020-05-25 13:51 ` Andrew Lunn
2020-05-25 15:40 ` [EXT] " Andy Duan
2020-05-25 13:54 ` [PATCH net v2 0/4] net: ethernet: fec: move GPR reigster offset and bit into DT Andrew Lunn
2020-05-25 15:41 ` [EXT] " Andy Duan
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