From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BB8EE1AB916; Tue, 9 Jul 2024 16:27:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720542421; cv=none; b=KSVidEwsRbSc1cCq3K6rSb5h0l3fu7dlaZDbCDpaTwuZD+6FtbL7VQgqi1BEmLxhYEk1dKxqqifrMfZ/uULRdHAnT0+oRdNW4kU/vjjqYzK70xvp0NtE1uICxr8NIgxVzhSmncgRGcCsC+grwICbRhyQuBzEFj87aYHpmeJZKA4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720542421; c=relaxed/simple; bh=VhLqec+Jr1RbTVeMYOkFFWHRTsNFt9nrLYnGduqDWDA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=urg9nGjR+b7VHeiTQX/8TkIvlyK5rnJDDF74ZNqhCCnZWdKMrOU91VZgfPNPqikiZaBu8hF1hGM9qlxHfuRQ9mZObdBuVVfc3gQTNzOlsoD/rBC+CFt5TpGMP8aHYbKODtY2h/SYwyvnAmlPLSph+dteHVGhzTpbb8Tj09ljZzo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fC8uFbpl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fC8uFbpl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65CFCC4AF07; Tue, 9 Jul 2024 16:27:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720542421; bh=VhLqec+Jr1RbTVeMYOkFFWHRTsNFt9nrLYnGduqDWDA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fC8uFbpl7nLJ6p668pHBgOxGkQcEWgtCp3beERjdC8Mfj56oRtPS3yYPd6F08S7qq 2m2kJyCpVYYZizdn1cNIdUU05TXioGpThoHVhlg2jR6QTHK3y7YD0Hb0s/oPLcy4qO FC4Gvaf9ZUNeePlTzEijRRNq30BO83R8YxpHJMagsPnMiuX0u2YeCteoxgjDjKrmPw UosDrq2uvfYl75RnrG7+0HE2RAKcfIUE7C2Bbva8Had5kvUbUCViFTd4y42zVteiUp s7LnWxrdC1GlR8ozmXaZbs6Yh9dQSAStulQKWB8TWrwCpEQoH4yNvalmCPsgYBsV0U LuPoY3UHCLMAw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jai Luthra , Peter Ujfalusi , Mark Brown , Sasha Levin , lgirdwood@gmail.com, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-sound@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 03/11] ASoC: ti: davinci-mcasp: Set min period size using FIFO config Date: Tue, 9 Jul 2024 12:26:36 -0400 Message-ID: <20240709162654.33343-3-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240709162654.33343-1-sashal@kernel.org> References: <20240709162654.33343-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.4.279 Content-Transfer-Encoding: 8bit From: Jai Luthra [ Upstream commit c5dcf8ab10606e76c1d8a0ec77f27d84a392e874 ] The minimum period size was enforced to 64 as older devices integrating McASP with EDMA used an internal FIFO of 64 samples. With UDMA based platforms this internal McASP FIFO is optional, as the DMA engine internally does some buffering which is already accounted for when registering the platform. So we should read the actual FIFO configuration (txnumevt/rxnumevt) instead of hardcoding frames.min to 64. Acked-by: Peter Ujfalusi Signed-off-by: Jai Luthra Link: https://lore.kernel.org/r/20240611-asoc_next-v3-2-fcfd84b12164@ti.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/ti/davinci-mcasp.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c index 0541071f454bd..9a182e4c7d572 100644 --- a/sound/soc/ti/davinci-mcasp.c +++ b/sound/soc/ti/davinci-mcasp.c @@ -1419,10 +1419,11 @@ static int davinci_mcasp_hw_rule_min_periodsize( { struct snd_interval *period_size = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE); + u8 numevt = *((u8 *)rule->private); struct snd_interval frames; snd_interval_any(&frames); - frames.min = 64; + frames.min = numevt; frames.integer = 1; return snd_interval_refine(period_size, &frames); @@ -1437,6 +1438,7 @@ static int davinci_mcasp_startup(struct snd_pcm_substream *substream, u32 max_channels = 0; int i, dir, ret; int tdm_slots = mcasp->tdm_slots; + u8 *numevt; /* Do not allow more then one stream per direction */ if (mcasp->substreams[substream->stream]) @@ -1536,9 +1538,12 @@ static int davinci_mcasp_startup(struct snd_pcm_substream *substream, return ret; } + numevt = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? + &mcasp->txnumevt : + &mcasp->rxnumevt; snd_pcm_hw_rule_add(substream->runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, - davinci_mcasp_hw_rule_min_periodsize, NULL, + davinci_mcasp_hw_rule_min_periodsize, numevt, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, -1); return 0; -- 2.43.0