From: Sven Peter <sven@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Shenghao Ding <shenghao-ding@ti.com>, Kevin Lu <kevin-lu@ti.com>,
Baojun Xu <baojun.xu@ti.com>, Sen Wang <sen@ti.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>,
James Calligeros <jcalligeros99@gmail.com>
Cc: Sven Peter <sven@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org,
asahi@lists.linux.dev
Subject: Re: (subset) [PATCH 0/3] Enable shared GPIO for Apple Silicon audio support
Date: Tue, 1 Sep 2026 22:11:37 +0200 [thread overview]
Message-ID: <178829346733.46626.4826048578689802871.b4-ty@b4> (raw)
In-Reply-To: <20260831-apple-shared-gpio-v1-0-e855b12e18ce@gmail.com>
On Mon, 31 Aug 2026 21:32:38 +1000, James Calligeros wrote:
> On Apple Silicon Macs, every speaker codec's software shutdown pin
> is connected to the same GPIO line. This line must be pulled high
> whenever any codec asserts it so.
>
> This makes power management impossible. When we goe through the list of
> codecs and call each suspend/resume, the GPIO line is asserted low or high
> by the first suspended/resumed codec. This causes issues for the subsequent
> codecs; they are already shut off by the time we try to cache the register
> state on suspend.
>
> [...]
Applied to git@github.com:AsahiLinux/linux.git (apple-soc/drivers-7.4), thanks!
[1/3] arm64: Kconfig: Select HAVE_SHARED_GPIOS for Apple Silicon
https://github.com/AsahiLinux/linux/commit/a416a347931f
Best regards,
--
Sven Peter <sven@kernel.org>
prev parent reply other threads:[~2026-09-01 20:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-31 11:32 [PATCH 0/3] Enable shared GPIO for Apple Silicon audio support James Calligeros
2026-08-31 11:32 ` [PATCH 1/3] arm64: Kconfig: Select HAVE_SHARED_GPIOS for Apple Silicon James Calligeros
2026-08-31 11:32 ` [PATCH 2/3] ASoC: tas2764: Initialise SDZ GPIO low James Calligeros
2026-08-31 11:32 ` [PATCH 3/3] ASoC: tas2770: " James Calligeros
2026-08-31 12:12 ` (subset) [PATCH 0/3] Enable shared GPIO for Apple Silicon audio support Mark Brown
2026-09-01 20:11 ` Sven Peter [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=178829346733.46626.4826048578689802871.b4-ty@b4 \
--to=sven@kernel.org \
--cc=asahi@lists.linux.dev \
--cc=baojun.xu@ti.com \
--cc=broonie@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=jcalligeros99@gmail.com \
--cc=kevin-lu@ti.com \
--cc=lgirdwood@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sound@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=perex@perex.cz \
--cc=sen@ti.com \
--cc=shenghao-ding@ti.com \
--cc=tiwai@suse.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox