Re: [PATCH] net: stmmac: add flexible PPS to dwmac 4.10a

From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Jakub Kicinski <jakub.kicinski@netronome.com>,
	Antonio Borneo <antonio.borneo@st.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	Jose Abreu <joabreu@synopsys.com>,
	"David S. Miller" <davem@davemloft.net>,
	netdev@vger.kernel.org,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	has <has@pengutronix.de>
Subject: Re: [PATCH] net: stmmac: add flexible PPS to dwmac 4.10a
Date: Tue, 24 Nov 2020 15:15:37 +0100	[thread overview]
Message-ID: <42960ede-9355-1277-9a6f-4eac3c22365c@pengutronix.de> (raw)
In-Reply-To: <20191009152618.33b45c2d@cakuba.netronome.com>

Hello Jakub,

On 10.10.19 00:26, Jakub Kicinski wrote:
> On Mon, 7 Oct 2019 17:43:06 +0200, Antonio Borneo wrote:
>> All the registers and the functionalities used in the callback
>> dwmac5_flex_pps_config() are common between dwmac 4.10a [1] and
>> 5.00a [2].
>>
>> Reuse the same callback for dwmac 4.10a too.
>>
>> Tested on STM32MP15x, based on dwmac 4.10a.
>>
>> [1] DWC Ethernet QoS Databook 4.10a October 2014
>> [2] DWC Ethernet QoS Databook 5.00a September 2017
>>
>> Signed-off-by: Antonio Borneo <antonio.borneo@st.com>
> 
> Applied to net-next.

This patch seems to have been fuzzily applied at the wrong location.
The diff describes extension of dwmac 4.10a and so does the @@ line:

  @@ -864,6 +864,7 @@ const struct stmmac_ops dwmac410_ops = {

The patch was applied mainline as 757926247836 ("net: stmmac: add
flexible PPS to dwmac 4.10a"), but it extends dwmac4_ops instead:

  @@ -938,6 +938,7 @@ const struct stmmac_ops dwmac4_ops = {

I don't know if dwmac4 actually supports FlexPPS, so I think it's
better to be on the safe side and revert 757926247836 and add the
change for the correct variant.

Cheers,
Ahmad

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