From: Jianguo Zhang <jianguo.zhang@mediatek.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
"David S . Miller" <davem@davemloft.net>,
Rob Herring <robh+dt@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Jose Abreu <joabreu@synopsys.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
"Biao Huang" <biao.huang@mediatek.com>, <netdev@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH 1/2] stmmac: dwmac-mediatek: add support for mt8188
Date: Mon, 19 Sep 2022 17:56:30 +0800 [thread overview]
Message-ID: <f72e133e9aec70724702054e5f6a8712b649d34f.camel@mediatek.com> (raw)
In-Reply-To: <88412fcc-96be-cd9d-8805-086c7f09c03b@linaro.org>
Dear Krzysztof,
On Mon, 2022-09-19 at 11:27 +0200, Krzysztof Kozlowski wrote:
> On 19/09/2022 10:37, Jianguo Zhang wrote:
> > Dear Krzysztof,
> >
> > Thanks for your comments.
> >
> >
> > On Mon, 2022-09-19 at 10:19 +0200, Krzysztof Kozlowski wrote:
> > > On 19/09/2022 10:04, Jianguo Zhang wrote:
> > > > Add ethernet support for MediaTek SoCs from mt8188 family.
> > > > As mt8188 and mt8195 have same ethernet design, so private data
> > > > "mt8195_gmac_variant" can be reused for mt8188.
> > > >
> > > > Signed-off-by: Jianguo Zhang <jianguo.zhang@mediatek.com>
> > > > ---
> > > > drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 2 ++
> > > > 1 file changed, 2 insertions(+)
> > > >
> > > > diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-
> > > > mediatek.c
> > > > b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> > > > index d42e1afb6521..f45be440b6d0 100644
> > > > --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> > > > +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> > > > @@ -720,6 +720,8 @@ static const struct of_device_id
> > > > mediatek_dwmac_match[] = {
> > > > .data = &mt2712_gmac_variant },
> > > > { .compatible = "mediatek,mt8195-gmac",
> > > > .data = &mt8195_gmac_variant },
> > > > + { .compatible = "mediatek,mt8188-gmac",
> > > > + .data = &mt8195_gmac_variant },
> > >
> > > It's the same. No need for new entry.
> > >
> >
> > mt8188 and mt8195 are different SoCs and we need to distinguish
> > mt8188
> > from mt8195, so I think a new entry is needed for mt8188 with the
> > specific "compatiable".
>
> No, this does not justify new entry. You need specific compatible,
> but
> not new entry.
>
> > On the other hand, mt8188 and mt8195 have same ethernet design, so
> > the
> > private data "mt8195_gmac_variant" can be resued to reduce
> > redundant
> > info in driver.
>
> And you do not need new entry in the driver.
Do you mean that I can use "mediatek,mt8195-gmac" as compatible for
ethernet in mt8188 DTS file?
>
> Best regards,
> Krzysztof
BRS
Jianguo
next prev parent reply other threads:[~2022-09-19 9:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-19 8:04 [PATCH 0/2] Mediatek ethernet patchs for mt8188 Jianguo Zhang
2022-09-19 8:04 ` [PATCH 1/2] stmmac: dwmac-mediatek: add support " Jianguo Zhang
2022-09-19 8:19 ` Krzysztof Kozlowski
2022-09-19 8:37 ` Jianguo Zhang
2022-09-19 9:27 ` Krzysztof Kozlowski
2022-09-19 9:56 ` Jianguo Zhang [this message]
2022-09-19 10:06 ` Krzysztof Kozlowski
2022-09-20 2:33 ` Jianguo Zhang
2022-09-19 8:04 ` [PATCH 2/2] net: dt-bindings: dwmac: " Jianguo Zhang
2022-09-19 8:20 ` Krzysztof Kozlowski
2022-09-19 16:24 ` Krzysztof Kozlowski
2022-09-20 2:41 ` Jianguo Zhang
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