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Message-ID: <09105afe-1123-407a-96c3-2ea88602aad0@denx.de>
Date: Mon, 10 Jun 2024 15:43:52 +0200
From: Marek Vasut <marex@...x.de>
To: Christophe ROULLIER <christophe.roullier@...s.st.com>,
 "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 v6 7/8] net: stmmac: dwmac-stm32: Mask support
 for PMCR configuration

On 6/10/24 1:45 PM, Christophe ROULLIER wrote:
> 
> On 6/10/24 12:39, Marek Vasut wrote:
>> On 6/10/24 9:14 AM, Christophe Roullier wrote:
>>
>> [...]
>>
>>>   static int stm32mp1_set_mode(struct plat_stmmacenet_data *plat_dat)
>>> @@ -303,7 +307,7 @@ static int stm32mcu_set_mode(struct 
>>> plat_stmmacenet_data *plat_dat)
>>>       dev_dbg(dwmac->dev, "Mode %s", 
>>> phy_modes(plat_dat->mac_interface));
>>>         return regmap_update_bits(dwmac->regmap, reg,
>>> -                 dwmac->ops->syscfg_eth_mask, val << 23);
>>> +                 SYSCFG_MCU_ETH_MASK, val << 23);
>>>   }
>>>     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");
>>
>> Isn't this an error , so dev_err() ?
> No, it is only "warning" information, for MP1 the mask is not needed 
> (and for backward compatibility is not planned to put mask parameter 
> mandatory)

Should this be an error for anything newer than MP15 then ?

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