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Message-ID: <c5ea12e7-5ee6-4960-9141-e774ccd9977b@foss.st.com>
Date: Mon, 10 Jun 2024 13:45:08 +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 v6 7/8] net: stmmac: dwmac-stm32: Mask support
for PMCR configuration
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)
>
> Include the err variable in the error message, see the dev_err() above
> for an example. That way the log already contains useful information
> (the error code) that can be used to narrow down the problem.
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