linux-kernel - Re: [PATCH v9 7/7] i2c: xiic: skip input clock setup on non-OF systems

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Message-ID: <aYIYUNejGCVdekx7@smile.fi.intel.com>
Date: Tue, 3 Feb 2026 17:46:24 +0200
From: Andy Shevchenko <andriy.shevchenko@...el.com>
To: abdurrahman@...thop.ai
Cc: Michal Simek <michal.simek@....com>, Andi Shyti <andi.shyti@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-kernel@...ts.infradead.org, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v9 7/7] i2c: xiic: skip input clock setup on non-OF
 systems

On Mon, Feb 02, 2026 at 08:37:24PM +0000, Abdurrahman Hussain via B4 Relay wrote:

> Currently Linux does not implement ACPI ClockInput to describe clock

ClockInput() resource

> resources, unlike DT. However the xiic driver is happy if something
> magically enables the clock before the driver probes, and does not
> turn it off again. The clock should always be considered optional for
> ACPI.

...

> +	if (is_of_node(dev_fwnode(dev))) {
> +		i2c->clk = devm_clk_get_enabled(dev, NULL);
> +		if (IS_ERR(i2c->clk))
> +			return dev_err_probe(&pdev->dev, PTR_ERR(i2c->clk),

Haven't you seen my previous comments? Why 'pdev'?

> +					"failed to enable input clock.\n");
> +	}

-- 
With Best Regards,
Andy Shevchenko