linux-kernel - [PATCH v2] ASoC: soc-utils: Remove PAGE_SIZE compile-time constant assumption

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Message-ID: <20241021130308.3616451-1-ryan.roberts@arm.com>
Date: Mon, 21 Oct 2024 14:03:07 +0100
From: Ryan Roberts <ryan.roberts@....com>
To: Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>
Cc: Ryan Roberts <ryan.roberts@....com>,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2] ASoC: soc-utils: Remove PAGE_SIZE compile-time constant assumption

In pursuit of the goal of supporting boot-time page size selection,
remove use of PAGE_SIZE from the dummy_dma_hardware struct definition,
since the value is not known at compile-time for this config.

Given the previous parameters were "essentially random", let's just
hardcode them as 4K and 4K*2 to sidestep the need to boot-time patch the
structure with the selected PAGE_SIZE.

Signed-off-by: Ryan Roberts <ryan.roberts@....com>
---
 sound/soc/soc-utils.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c
index 303823dc45d7..aa93e77ac937 100644
--- a/sound/soc/soc-utils.c
+++ b/sound/soc/soc-utils.c
@@ -103,8 +103,8 @@ static const struct snd_pcm_hardware dummy_dma_hardware = {
 	.info			= SNDRV_PCM_INFO_INTERLEAVED |
 				  SNDRV_PCM_INFO_BLOCK_TRANSFER,
 	.buffer_bytes_max	= 128*1024,
-	.period_bytes_min	= PAGE_SIZE,
-	.period_bytes_max	= PAGE_SIZE*2,
+	.period_bytes_min	= 4096,
+	.period_bytes_max	= 4096*2,
 	.periods_min		= 2,
 	.periods_max		= 128,
 };
--
2.43.0