[PATCH v3 0/3] Fix CS35L56 amplifier on Intel LPSS SPI with broken ACPI cs-gpios · Khalil <hidden> · 2026-09-01
[PATCH v3 1/3] spi: Preserve preset cs_gpiod in __spi_add_device() · Khalil <hidden> · 2026-09-01
[PATCH v3 2/3] platform/x86: serial-multi-instantiate: Fix SPI chip select on platforms with incomplete ACPI cs-gpios · Khalil <hidden> · 2026-09-01
Re: [PATCH v3 2/3] platform/x86: serial-multi-instantiate: Fix SPI chip select on platforms with incomplete ACPI cs-gpios · Juan Jimenez Carrero <hidden> · 2026-09-16
[PATCH v3 3/3] spi: pxa2xx: Handle clock gating for GPIO chip select devices · Khalil <hidden> · 2026-09-01
Re: [PATCH v3 3/3] spi: pxa2xx: Handle clock gating for GPIO chip select devices · Juan Jimenez Carrero <hidden> · 2026-09-16
Re: [PATCH v3 0/3] Fix CS35L56 amplifier on Intel LPSS SPI with broken ACPI cs-gpios · Richard Fitzgerald <rf@opensource.cirrus.com> · 2026-09-03
Re: [PATCH v3 0/3] Fix CS35L56 amplifier on Intel LPSS SPI with broken ACPI cs-gpios · Juan Jimenez Carrero <hidden> · 2026-09-11
Re: [PATCH v3 0/3] Fix CS35L56 amplifier on Intel LPSS SPI with broken ACPI cs-gpios · Juan Jimenez Carrero <hidden> · 2026-09-16
Re: [PATCH v3 0/3] Fix CS35L56 amplifier on Intel LPSS SPI with broken ACPI cs-gpios · Richard Fitzgerald <rf@opensource.cirrus.com> · 2026-09-17
Re: [PATCH v3 0/3] Fix CS35L56 amplifier on Intel LPSS SPI with broken ACPI cs-gpios · Juan Jimenez Carrero <hidden> · 2026-09-18

Re: [PATCH v3 0/3] Fix CS35L56 amplifier on Intel LPSS SPI with broken ACPI cs-gpios

From: Richard Fitzgerald <rf@opensource.cirrus.com>
Date: 2026-09-03 09:21:38
Also in: linux-spi, lkml, platform-driver-x86

On 01/09/2026 8:26 pm, Khalil wrote:

v3 of the patch series fixing dual CS35L56 amplifiers on HP laptops
with Intel Lunar Lake and broken ACPI cs-gpios.

HP told us they have a BIOS with the cs-gpios fixed, and they can make
that available early if you post a support request for it.

Can you test that new BIOS? It would avoid the messy SPI workarounds.

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