netdev - Re: [net-next,PATCH v7 7/8] net: stmmac: dwmac-stm32: Mask support for PMCR configuration

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Date: Tue, 11 Jun 2024 15:32:10 +0200
From: Christophe ROULLIER <christophe.roullier@...s.st.com>
To: Marek Vasut <marex@...x.de>, "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo
 Abeni <pabeni@...hat.com>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre
 Torgue <alexandre.torgue@...s.st.com>,
        Richard Cochran
	<richardcochran@...il.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Liam Girdwood
	<lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>
CC: <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [net-next,PATCH v7 7/8] net: stmmac: dwmac-stm32: Mask support
 for PMCR configuration


On 6/11/24 15:07, Marek Vasut wrote:
> On 6/11/24 10:36 AM, Christophe Roullier wrote:
>
> [...]
>
>>   static void stm32_dwmac_clk_disable(struct stm32_dwmac *dwmac, bool 
>> suspend)
>> @@ -348,8 +352,15 @@ static int stm32_dwmac_parse_data(struct 
>> stm32_dwmac *dwmac,
>>           return PTR_ERR(dwmac->regmap);
>>         err = of_property_read_u32_index(np, "st,syscon", 1, 
>> &dwmac->mode_reg);
>> -    if (err)
>> +    if (err) {
>>           dev_err(dev, "Can't get sysconfig mode offset (%d)\n", err);
>> +        return err;
>> +    }
>> +
>> +    dwmac->mode_mask = SYSCFG_MP1_ETH_MASK;
>> +    err = of_property_read_u32_index(np, "st,syscon", 2, 
>> &dwmac->mode_mask);
>> +    if (err)
>> +        dev_dbg(dev, "Warning sysconfig register mask not set\n");
>
> My comment on V6 was not addressed I think ?

Hi Marek,

I put the modification in patch which introduce MP13 (V7 8/8) ;-)

  	err = of_property_read_u32_index(np, "st,syscon", 2, &dwmac->mode_mask);
-	if (err)
-		dev_dbg(dev, "Warning sysconfig register mask not set\n");
+	if (err) {
+		if (dwmac->ops->is_mp13)
+			dev_err(dev, "Sysconfig register mask must be set (%d)\n", err);
+		else
+			dev_dbg(dev, "Warning sysconfig register mask not set\n");
+	}