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Message-ID: <b78661b9-d9a4-5c2c-7df6-8fc79da73538@microchip.com>
Date: Tue, 14 Feb 2023 11:11:58 +0000
From: <Claudiu.Beznea@...rochip.com>
To: <andriy.shevchenko@...ux.intel.com>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <Ludovic.Desroches@...rochip.com>, <linus.walleij@...aro.org>,
<Nicolas.Ferre@...rochip.com>, <alexandre.belloni@...tlin.com>
Subject: Re: [PATCH v2 5/5] pinctrl: at91: Utilise temporary variable for
struct device
On 13.02.2023 17:45, Andy Shevchenko wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> We have a temporary variable to keep pointer to struct device.
> Utilise it inside the ->probe() implementation.
Apart from this the patch also removes some { } and does some alignments.
For clarity some of these might go better in a different patch.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
> drivers/pinctrl/pinctrl-at91.c | 63 +++++++++++++++-------------------
> 1 file changed, 27 insertions(+), 36 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
> index 08f88403affb..7ada36ca64eb 100644
> --- a/drivers/pinctrl/pinctrl-at91.c
> +++ b/drivers/pinctrl/pinctrl-at91.c
> @@ -1304,7 +1304,7 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev,
> if (!np)
> return -ENODEV;
>
> - info->dev = &pdev->dev;
> + info->dev = dev;
> info->ops = of_device_get_match_data(dev);
> at91_pinctrl_child_count(info, np);
>
> @@ -1324,35 +1324,30 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev,
> if (ret)
> return ret;
>
> - dev_dbg(&pdev->dev, "nmux = %d\n", info->nmux);
> + dev_dbg(dev, "nmux = %d\n", info->nmux);
>
> - dev_dbg(&pdev->dev, "mux-mask\n");
> + dev_dbg(dev, "mux-mask\n");
> tmp = info->mux_mask;
> for (i = 0; i < gpio_banks; i++) {
> - for (j = 0; j < info->nmux; j++, tmp++) {
here
> - dev_dbg(&pdev->dev, "%d:%d\t0x%x\n", i, j, tmp[0]);
> - }
> + for (j = 0; j < info->nmux; j++, tmp++)
> + dev_dbg(dev, "%d:%d\t0x%x\n", i, j, tmp[0]);
> }
>
> - dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
> - dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
> - info->functions = devm_kcalloc(&pdev->dev,
> - info->nfunctions,
> - sizeof(struct at91_pmx_func),
> - GFP_KERNEL);
> + dev_dbg(dev, "nfunctions = %d\n", info->nfunctions);
> + dev_dbg(dev, "ngroups = %d\n", info->ngroups);
> + info->functions = devm_kcalloc(dev, info->nfunctions, sizeof(*info->functions),
> + GFP_KERNEL);
> if (!info->functions)
> return -ENOMEM;
>
> - info->groups = devm_kcalloc(&pdev->dev,
> - info->ngroups,
> - sizeof(struct at91_pin_group),
> - GFP_KERNEL);
> + info->groups = devm_kcalloc(dev, info->ngroups, sizeof(*info->groups),
> + GFP_KERNEL);
> if (!info->groups)
> return -ENOMEM;
>
> - dev_dbg(&pdev->dev, "nbanks = %d\n", gpio_banks);
> - dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
> - dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
> + dev_dbg(dev, "nbanks = %d\n", gpio_banks);
> + dev_dbg(dev, "nfunctions = %d\n", info->nfunctions);
> + dev_dbg(dev, "ngroups = %d\n", info->ngroups);
>
> i = 0;
>
> @@ -1376,7 +1371,7 @@ static int at91_pinctrl_probe(struct platform_device *pdev)
> struct pinctrl_pin_desc *pdesc;
> int ret, i, j, k;
>
> - info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
> + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
> if (!info)
> return -ENOMEM;
>
> @@ -1384,13 +1379,10 @@ static int at91_pinctrl_probe(struct platform_device *pdev)
> if (ret)
> return ret;
>
> - at91_pinctrl_desc.name = dev_name(&pdev->dev);
> + at91_pinctrl_desc.name = dev_name(dev);
> at91_pinctrl_desc.npins = gpio_banks * MAX_NB_GPIO_PER_BANK;
> at91_pinctrl_desc.pins = pdesc =
> - devm_kcalloc(&pdev->dev,
> - at91_pinctrl_desc.npins, sizeof(*pdesc),
> - GFP_KERNEL);
> -
> + devm_kcalloc(dev, at91_pinctrl_desc.npins, sizeof(*pdesc), GFP_KERNEL);
> if (!at91_pinctrl_desc.pins)
> return -ENOMEM;
>
> @@ -1413,8 +1405,7 @@ static int at91_pinctrl_probe(struct platform_device *pdev)
> }
>
> platform_set_drvdata(pdev, info);
> - info->pctl = devm_pinctrl_register(&pdev->dev, &at91_pinctrl_desc,
> - info);
> + info->pctl = devm_pinctrl_register(dev, &at91_pinctrl_desc, info);
> if (IS_ERR(info->pctl))
> return dev_err_probe(dev, PTR_ERR(info->pctl), "could not register AT91 pinctrl driver\n");
>
> @@ -1423,7 +1414,7 @@ static int at91_pinctrl_probe(struct platform_device *pdev)
> if (gpio_chips[i])
> pinctrl_add_gpio_range(info->pctl, &gpio_chips[i]->range);
>
> - dev_info(&pdev->dev, "initialized AT91 pinctrl driver\n");
> + dev_info(dev, "initialized AT91 pinctrl driver\n");
>
> return 0;
> }
> @@ -1714,6 +1705,7 @@ static void gpio_irq_handler(struct irq_desc *desc)
> static int at91_gpio_of_irq_setup(struct platform_device *pdev,
> struct at91_gpio_chip *at91_gpio)
> {
> + struct device *dev = &pdev->dev;
> struct gpio_chip *gpiochip_prev = NULL;
> struct at91_gpio_chip *prev = NULL;
> struct irq_data *d = irq_get_irq_data(at91_gpio->pioc_virq);
> @@ -1721,8 +1713,7 @@ static int at91_gpio_of_irq_setup(struct platform_device *pdev,
> struct gpio_irq_chip *girq;
> int i;
>
> - gpio_irqchip = devm_kzalloc(&pdev->dev, sizeof(*gpio_irqchip),
> - GFP_KERNEL);
> + gpio_irqchip = devm_kzalloc(dev, sizeof(*gpio_irqchip), GFP_KERNEL);
> if (!gpio_irqchip)
> return -ENOMEM;
>
> @@ -1758,7 +1749,7 @@ static int at91_gpio_of_irq_setup(struct platform_device *pdev,
> if (!gpiochip_prev) {
> girq->parent_handler = gpio_irq_handler;
> girq->num_parents = 1;
> - girq->parents = devm_kcalloc(&pdev->dev, 1,
> + girq->parents = devm_kcalloc(dev, girq->num_parents,
> sizeof(*girq->parents),
> GFP_KERNEL);
> if (!girq->parents)
> @@ -1824,7 +1815,7 @@ static int at91_gpio_probe(struct platform_device *pdev)
> if (irq < 0)
> return irq;
>
> - at91_chip = devm_kzalloc(&pdev->dev, sizeof(*at91_chip), GFP_KERNEL);
> + at91_chip = devm_kzalloc(dev, sizeof(*at91_chip), GFP_KERNEL);
> if (!at91_chip)
> return -ENOMEM;
>
> @@ -1836,7 +1827,7 @@ static int at91_gpio_probe(struct platform_device *pdev)
> at91_chip->pioc_virq = irq;
> at91_chip->pioc_idx = alias_idx;
>
> - at91_chip->clock = devm_clk_get_enabled(&pdev->dev, NULL);
> + at91_chip->clock = devm_clk_get_enabled(dev, NULL);
> if (IS_ERR(at91_chip->clock))
> return dev_err_probe(dev, PTR_ERR(at91_chip->clock), "failed to get clock, ignoring.\n");
>
> @@ -1844,8 +1835,8 @@ static int at91_gpio_probe(struct platform_device *pdev)
> at91_chip->id = alias_idx;
>
> chip = &at91_chip->chip;
> - chip->label = dev_name(&pdev->dev);
> - chip->parent = &pdev->dev;
> + chip->label = dev_name(dev);
> + chip->parent = dev;
> chip->owner = THIS_MODULE;
> chip->base = alias_idx * MAX_NB_GPIO_PER_BANK;
>
> @@ -1886,7 +1877,7 @@ static int at91_gpio_probe(struct platform_device *pdev)
> platform_set_drvdata(pdev, at91_chip);
> gpio_banks = max(gpio_banks, alias_idx + 1);
>
> - dev_info(&pdev->dev, "at address %p\n", at91_chip->regbase);
> + dev_info(dev, "at address %p\n", at91_chip->regbase);
>
> return 0;
> }
> --
> 2.39.1
>
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