linux-kernel - Re: [PATCH v2 2/3] platform: arm64: Add driver for EC found in most X1E laptops

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Message-ID: <ki4iysb6dllfipjeq37kejqc3gsko7ajuwzaq5g2tl4nalyc2h@nw4srmf6muxb>
Date: Sun, 22 Dec 2024 07:34:47 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Maya Matuszczyk <maccraft123mc@...il.com>
Cc: Hans de Goede <hdegoede@...hat.com>, 
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>, Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
	Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, Benno Lossin <benno.lossin@...ton.me>, 
	Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, 
	Trevor Gross <tmgross@...ch.edu>, linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	platform-driver-x86@...r.kernel.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v2 2/3] platform: arm64: Add driver for EC found in most
 X1E laptops

On Thu, Dec 19, 2024 at 09:08:19PM +0100, Maya Matuszczyk wrote:
> +static int qcom_x1e_it8987_ec_resume(struct device *dev)
> +{
> +	struct i2c_client *client = to_i2c_client(dev);
> +	int ret;
> +
> +	ret = i2c_smbus_write_byte_data(client, EC_SUSPEND_RESUME_REG, EC_NOTIFY_SUSPEND_EXIT);
> +	if (ret)
> +		return ret;
> +
> +	ret = i2c_smbus_write_byte_data(client, EC_SUSPEND_RESUME_REG, EC_NOTIFY_SCREEN_ON);
> +	if (ret)
> +		return ret;
> +
> +	return 0;
> +}
> +
> +static const struct of_device_id qcom_x1e_it8987_ec_of_match[] = {
> +	{ .compatible = "lenovo,yoga-slim7x-ec" },

Drop, you added fallback for that exact purpose.

> +	{ .compatible = "qcom,x1e-it9897-ec" },
> +	{}
> +};
> +MODULE_DEVICE_TABLE(of, qcom_x1e_it8987_ec_of_match);

Best regards,
Krzysztof