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Date: Tue, 9 Jan 2024 08:58:33 +0100
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Subject: Re: [PATCH 2/2] net: stmmac: Add StarFive JH8100 dwmac support
To: ChunHau Tan <chunhau.tan@starfivetech.com>,
 "David S . Miller" <davem@davemloft.net>, Eric Dumazet
 <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>,
 Paolo Abeni <pabeni@redhat.com>, Rob Herring <robh+dt@kernel.org>,
 Emil Renner Berthing <kernel@esmil.dk>, Rob Herring <robh@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>,
 Maxime Coquelin <mcoquelin.stm32@gmail.com>,
 Alexandre Torgue <alexandre.torgue@foss.st.com>,
 Simon Horman <horms@kernel.org>,
 Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
 Andrew Halaney <ahalaney@redhat.com>, Jisheng Zhang <jszhang@kernel.org>,
 =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>,
 Russell King <rmk+kernel@armlinux.org.uk>
Cc: Leyfoon Tan <leyfoon.tan@starfivetech.com>,
 JeeHeng Sia <jeeheng.sia@starfivetech.com>,
 "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
 "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
 "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
 "linux-stm32@st-md-mailman.stormreply.com"
 <linux-stm32@st-md-mailman.stormreply.com>,
 "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>
References: <20240108075810.14161-1-chunhau.tan@starfivetech.com>
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 <1c0474d3-e182-48c8-8ec2-12847c84164b@linaro.org>
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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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On 09/01/2024 08:25, ChunHau Tan wrote:
> 
> 
>> -----Original Message-----
>> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> Sent: Monday, 8 January, 2024 5:07 PM
>> To: ChunHau Tan <chunhau.tan@starfivetech.com>; David S . Miller
>> <davem@davemloft.net>; Eric Dumazet <edumazet@google.com>; Jakub
>> Kicinski <kuba@kernel.org>; Paolo Abeni <pabeni@redhat.com>; Rob Herring
>> <robh+dt@kernel.org>; Emil Renner Berthing <kernel@esmil.dk>; Rob Herring
>> <robh@kernel.org>; Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>;
>> Conor Dooley <conor+dt@kernel.org>; Maxime Coquelin
>> <mcoquelin.stm32@gmail.com>; Alexandre Torgue
>> <alexandre.torgue@foss.st.com>; Simon Horman <horms@kernel.org>;
>> Bartosz Golaszewski <bartosz.golaszewski@linaro.org>; Andrew Halaney
>> <ahalaney@redhat.com>; Jisheng Zhang <jszhang@kernel.org>; Uwe
>> Kleine-König <u.kleine-koenig@pengutronix.de>; Russell King
>> <rmk+kernel@armlinux.org.uk>
>> Cc: Leyfoon Tan <leyfoon.tan@starfivetech.com>; JeeHeng Sia
>> <jeeheng.sia@starfivetech.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
>> Subject: Re: [PATCH 2/2] net: stmmac: Add StarFive JH8100 dwmac support
>>
>> On 08/01/2024 08:58, Tan Chun Hau wrote:
>>> Add JH8100 dwmac support.
>>>
>>> Signed-off-by: Tan Chun Hau <chunhau.tan@starfivetech.com>
>>> ---
>>>  drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
>> b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
>>> index 5d630affb4d1..373714f6e382 100644
>>> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
>>> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
>>> @@ -146,6 +146,7 @@ static int starfive_dwmac_probe(struct
>> platform_device *pdev)
>>>
>>>  static const struct of_device_id starfive_dwmac_match[] = {
>>>  	{ .compatible = "starfive,jh7110-dwmac"	},
>>> +	{ .compatible = "starfive,jh8100-dwmac"	},
>>
>> No differences? Then why aren't the devices made compatible with each
>> other?
> There is a difference between JH7110 & JH8110,
> JH7110 has two reset signals (ahb, stmmaceth),
> while JH8110 has only one reset signal (stmmaceth),
> this will be shown in device tree file.

So if you are so picky then again: No differences in the driver? Then
use compatibility or provide real arguments. NAK.

Best regards,
Krzysztof