linux-kernel - Re: [PATCH v4 0/2] Fix LPSS clock divider for XPS 9530

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Date: Thu, 11 Jan 2024 10:15:51 +0000
From: Lee Jones <lee@...nel.org>
To: Lee Jones <lee@...nel.org>, 
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
 linux-kernel@...r.kernel.org, 
 Aleksandrs Vinarskis <alex.vinarskis@...il.com>
Cc: Hans de Goede <hdegoede@...hat.com>
Subject: Re: [PATCH v4 0/2] Fix LPSS clock divider for XPS 9530

On Thu, 21 Dec 2023 19:51:40 +0100, Aleksandrs Vinarskis wrote:
> Dell XPS 9530 (2023) uses spi-pxa2xx with clock-divider enabled from
> intel-lpss with the ratio of 1:32767 (Dell's firmware bug). This caps SPI
> controller's speed at very low value of 3051Hz, which makes the interface
> practically unusable. Since either spi-pxa2xx or intel-lpss should have
> clock divider enabled, not both, and SPI controller can have higher speed
> than requested by the device, it is preffered to disable intel-lpss
> clock-divider, and let SPI controller handle it.
> 
> [...]

Applied, thanks!

[1/2] mfd: intel-lpss: Switch to generalized quirk table
      commit: d43b5230c38ed6001f996eb9262b457713b31ef8
[2/2] mfd: intel-lpss: Introduce QUIRK_CLOCK_DIVIDER_UNITY for XPS 9530
      commit: 106362167f49a0e83f4e6c26f9653f3061575229

--
Lee Jones [李琼斯]