linux-kernel - ASoC rt5677: Prepare to support Lenovo Yoga Book tablets

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Message-ID: <20260211002255.4090440-1-jekhor@gmail.com>
Date: Wed, 11 Feb 2026 02:18:32 +0200
From: Yauhen Kharuzhy <jekhor@...il.com>
To: Oder Chiou <oder_chiou@...ltek.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>
Cc: Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Hans de Goede <hansg@...nel.org>
Subject: ASoC rt5677: Prepare to support Lenovo Yoga Book tablets

There are two Intel Cherry Trail-based devices using the RT5677 as a sound
codec: Lenovo Yoga Book YB1-X90 (Android tablet) and YB1-X91 (Windows
tablet).

They both have the same hardware configuration, but the X90 doesn't have
correct ACPI table definitions for many peripherals, whereas the X91 does.

Devices missing in the ACPI are defined in the board-specific driver
platform/x86/x86-android-tablets. In the X91 tablet, an ACPI _CRS method
for the RT5677 contains GPIO configuration entries which were not
supported by the codec driver before.

To support such device definitions, some modifications are added to the
RT5677 code: ACPI, SPI, and I2C matching ids have been introduced,
as well as some GPIO-related magic.