From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: ChiaEn Wu <peterwu.pub@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
Jingoo Han <jingoohan1@gmail.com>, Pavel Machek <pavel@ucw.cz>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Sebastian Reichel <sre@kernel.org>,
Chunfeng Yun <chunfeng.yun@mediatek.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jonathan Cameron <jic23@kernel.org>,
Lars-Peter Clausen <lars@metafoo.de>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>,
Guenter Roeck <linux@roeck-us.net>,
"Krogerus, Heikki" <heikki.krogerus@linux.intel.com>,
Helge Deller <deller@gmx.de>, ChiaEn Wu <chiaen_wu@richtek.com>,
Alice Chen <alice_chen@richtek.com>,
cy_huang <cy_huang@richtek.com>,
dri-devel <dri-devel@lists.freedesktop.org>,
Linux LED Subsystem <linux-leds@vger.kernel.org>,
devicetree <devicetree@vger.kernel.org>,
linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux PM <linux-pm@vger.kernel.org>,
USB <linux-usb@vger.kernel.org>,
linux-iio <linux-iio@vger.kernel.org>,
"open list:FRAMEBUFFER LAYER" <linux-fbdev@vger.kernel.org>,
szuni chen <szunichen@gmail.com>
Subject: Re: [PATCH v4 08/13] usb: typec: tcpci_mt6370: Add Mediatek MT6370 tcpci driver
Date: Mon, 4 Jul 2022 22:19:55 +0200 [thread overview]
Message-ID: <CAHp75VeNRVHr-LorfnWAkwfXzT+ix6S9sZ623OBA8+0Zi8Xucg@mail.gmail.com> (raw)
In-Reply-To: <20220704053901.728-9-peterwu.pub@gmail.com>
On Mon, Jul 4, 2022 at 7:42 AM ChiaEn Wu <peterwu.pub@gmail.com> wrote:
>
> Add chip level mt6370 tcpci driver.
...
> +static const struct reg_sequence mt6370_reg_init[] = {
> + REG_SEQ(0xA0, 0x1, 1000),
> + REG_SEQ(0x81, 0x38, 0),
> + REG_SEQ(0x82, 0x82, 0),
> + REG_SEQ(0xBA, 0xFC, 0),
> + REG_SEQ(0xBB, 0x50, 0),
> + REG_SEQ(0x9E, 0x8F, 0),
> + REG_SEQ(0xA1, 0x5, 0),
> + REG_SEQ(0xA2, 0x4, 0),
> + REG_SEQ(0xA3, 0x4A, 0),
> + REG_SEQ(0xA4, 0x01, 0),
> + REG_SEQ(0x95, 0x01, 0),
> + REG_SEQ(0x80, 0x71, 0),
> + REG_SEQ(0x9B, 0x3A, 1000)
Keep a comma here in case something would be added later on.
> +};
...
> + if (ret && !source)
> + return regulator_disable(priv->vbus);
> + else if (!ret && source)
> + return regulator_enable(priv->vbus);
> + else
> + return 0;
'else' is redundant in both cases.
...
> +static int mt6370_check_vendor_info(struct mt6370_priv *priv)
> +{
> + struct regmap *regmap = priv->tcpci_data.regmap;
> + u16 vid;
> + int ret;
> +
> + ret = regmap_raw_read(regmap, TCPC_VENDOR_ID, &vid, sizeof(u16));
> + if (ret)
> + return ret;
> +
> + if (vid != MT6370_VENDOR_ID) {
> + dev_err(priv->dev, "Vendor ID not correct 0x%02x\n", vid);
> + return -ENODEV;
return dev_err_probe(...);
> + }
> +
> + return 0;
> +}
> +
> +static int mt6370_tcpc_probe(struct platform_device *pdev)
> +{
> + struct mt6370_priv *priv;
> + int ret;
> +
> + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + priv->dev = &pdev->dev;
> + platform_set_drvdata(pdev, priv);
> +
> + priv->tcpci_data.regmap = dev_get_regmap(pdev->dev.parent, NULL);
> + if (!priv->tcpci_data.regmap)
> + return dev_err_probe(&pdev->dev, -ENODEV,
> + "Failed to init regmap\n");
You may save some LoCs by introducing a temporary variable
struct device *dev = &pdev->dev;
and here on a single line
return dev_err_probe(dev, ...);
Ditto for the rest.
...
> + ret = mt6370_check_vendor_info(priv);
> + if (ret)
> + return dev_err_probe(&pdev->dev, ret,
> + "Failed to check vendor info\n");
This duplicates (with less info given) the message from the callee.
...
> + { .compatible = "mediatek,mt6370-tcpc", },
Inner comma is not needed.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2022-07-04 20:20 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-04 5:38 [PATCH v4 00/13] Add Mediatek MT6370 PMIC support ChiaEn Wu
2022-07-04 5:38 ` [PATCH v4 01/13] dt-bindings: usb: Add Mediatek MT6370 TCPC ChiaEn Wu
2022-07-04 5:38 ` [PATCH v4 02/13] dt-bindings: power: supply: Add Mediatek MT6370 Charger ChiaEn Wu
2022-07-04 9:04 ` Krzysztof Kozlowski
2022-07-04 5:38 ` [PATCH v4 03/13] dt-bindings: leds: mt6370: Add Mediatek mt6370 current sink type LED indicator ChiaEn Wu
2022-07-04 5:38 ` [PATCH v4 04/13] dt-bindings: leds: Add Mediatek MT6370 flashlight ChiaEn Wu
2022-07-04 5:38 ` [PATCH v4 05/13] dt-bindings: backlight: Add Mediatek MT6370 backlight ChiaEn Wu
2022-07-04 5:38 ` [PATCH v4 06/13] dt-bindings: mfd: Add Mediatek MT6370 ChiaEn Wu
2022-07-04 9:07 ` Krzysztof Kozlowski
2022-07-04 5:38 ` [PATCH v4 07/13] mfd: mt6370: Add Mediatek MT6370 support ChiaEn Wu
2022-07-04 20:29 ` Andy Shevchenko
2022-07-04 5:38 ` [PATCH v4 08/13] usb: typec: tcpci_mt6370: Add Mediatek MT6370 tcpci driver ChiaEn Wu
2022-07-04 7:32 ` Greg KH
2022-07-04 9:31 ` szuni chen
2022-07-04 11:07 ` Greg KH
2022-07-04 20:19 ` Andy Shevchenko [this message]
2022-07-04 5:38 ` [PATCH v4 09/13] iio: adc: mt6370: Add Mediatek MT6370 support ChiaEn Wu
2022-07-04 20:35 ` Andy Shevchenko
2022-07-04 5:38 ` [PATCH v4 10/13] power: supply: mt6370: Add Mediatek MT6370 charger driver ChiaEn Wu
2022-07-04 20:53 ` Andy Shevchenko
2022-07-04 5:38 ` [PATCH v4 11/13] leds: mt6370: Add Mediatek MT6370 current sink type LED Indicator support ChiaEn Wu
2022-07-04 5:39 ` [PATCH v4 12/13] leds: flashlight: mt6370: Add Mediatek MT6370 flashlight support ChiaEn Wu
2022-07-04 21:05 ` Andy Shevchenko
2022-07-07 10:49 ` szuni chen
2022-07-04 5:39 ` [PATCH v4 13/13] video: backlight: mt6370: Add Mediatek MT6370 support ChiaEn Wu
2022-07-04 21:14 ` Andy Shevchenko
2022-07-13 10:53 ` ChiaEn Wu
2022-07-13 12:07 ` Andy Shevchenko
2022-07-13 13:07 ` Lee Jones
2022-07-14 7:13 ` ChiaEn Wu
2022-07-14 9:27 ` Andy Shevchenko
2022-07-14 9:43 ` Andy Shevchenko
2022-07-14 10:15 ` Andy Shevchenko
2022-07-14 9:47 ` Daniel Thompson
2022-07-14 9:49 ` Andy Shevchenko
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