linux-kernel - Re: [PATCH 05/10] PCI: exynos: Add structure to hold resource operations

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Message-ID: <20250521-nostalgic-fox-of-valor-f6d725@kuoka>
Date: Wed, 21 May 2025 11:42:37 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Shradha Todi <shradha.t@...sung.com>
Cc: linux-pci@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.or, linux-kernel@...r.kernel.org, 
	linux-phy@...ts.infradead.org, manivannan.sadhasivam@...aro.org, lpieralisi@...nel.org, 
	kw@...ux.com, robh@...nel.org, bhelgaas@...gle.com, jingoohan1@...il.com, 
	krzk+dt@...nel.org, conor+dt@...nel.org, alim.akhtar@...sung.com, vkoul@...nel.org, 
	kishon@...nel.org, arnd@...db.de, m.szyprowski@...sung.com, jh80.chung@...sung.com, 
	Pankaj Dubey <pankaj.dubey@...sung.com>
Subject: Re: [PATCH 05/10] PCI: exynos: Add structure to hold resource
 operations

On Mon, May 19, 2025 at 01:01:47AM GMT, Shradha Todi wrote:
> +struct samsung_res_ops {
> +	int (*init_regulator)(struct exynos_pcie *ep);
> +	irqreturn_t (*pcie_irq_handler)(int irq, void *arg);
>  };
>  
>  static void exynos_pcie_writel(void __iomem *base, u32 val, u32 reg)
> @@ -74,6 +81,36 @@ static u32 exynos_pcie_readl(void __iomem *base, u32 reg)
>  	return readl(base + reg);
>  }
>  
> +static int samsung_regulator_enable(struct exynos_pcie *ep)
> +{
> +	struct device *dev = ep->pci.dev;
> +	int ret;
> +
> +	if (ep->supplies_cnt == 0)
> +		return 0;
> +
> +	ret = devm_regulator_bulk_get(dev, ep->supplies_cnt, ep->supplies);

No. Getting resources on every enable is making this much less readable.

NAK

Best regards,
Krzysztof