From: David Laight <david.laight.linux@gmail.com>
To: Fu Hao <fuhao@open-hieco.net>
Cc: perex@perex.cz, tiwai@suse.com, linux-kernel@vger.kernel.org,
linux-sound@vger.kernel.org
Subject: Re: [PATCH 7/8] ALSA: hda: Fix single byte writing issue for Hygon family 18h model 5h
Date: Fri, 27 Mar 2026 13:02:26 +0000 [thread overview]
Message-ID: <20260327130226.1e239670@pumpkin> (raw)
In-Reply-To: <b978ca224f7c9a3c30efd69abdac5df395da63fa.1774595153.git.fuhao@open-hieco.net>
On Fri, 27 Mar 2026 16:11:13 +0800
Fu Hao <fuhao@open-hieco.net> wrote:
> On Hygon family 18h model 5h controller, some registers such as
> GCTL, SD_CTL and SD_CTL_3B should be accessed in dword, or the
> writing will fail.
What's a 'dword' ?
It is short for 'double word', a 64bit cpu has a word size of
64 bits, so a dword would be 128 bits.
On Hygon family 18h model 5h controller 32bit accesses must be
used to access registers such as CTL, SD_CTL and SD_CTL_3B.
David
next prev parent reply other threads:[~2026-03-27 13:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1774595153.git.fuhao@open-hieco.net>
2026-03-27 8:10 ` [PATCH 6/8] ALSA: hda: Add support for Hygon family 18h model 5h HD-Audio Fu Hao
2026-03-27 8:11 ` [PATCH 7/8] ALSA: hda: Fix single byte writing issue for Hygon family 18h model 5h Fu Hao
2026-03-27 12:11 ` Takashi Iwai
2026-03-27 12:55 ` Fu Hao
2026-03-27 13:02 ` David Laight [this message]
2026-03-28 2:41 ` Fu Hao
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