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 887A154903; Tue, 14 May 2024 11:03:58 +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=1715684638; cv=none; b=E4HwFEhu2sJkWD0/zyWagaIfJsHqzQQH6+NMZ4ifT6sXsjStzuWn8XoJ1ZcaZtYdNzVbYG+7lb6tTzqjM6PFGZBISuiU8G0E7e0WY+1ofCb5SwKOQLGg1qUmeSILugdBjgDr5SFb1Q+JdJC3EGSdmgdZJBfANjqfoEtih2UM+BI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715684638; c=relaxed/simple; bh=w943OfC6go48wRb8h+A9Vlq7fnB3tAAVXKCATcMe7Gs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JphRBlZqVxrdt5jF6S+lALLRa+KN/WqZrMKkYggzqrTwEwClerbkXIVXAvISqsHxx1FY/cxJW3ZU+tdn2wkNE43Qn+1BUPS8h+xFzFtknO5/NEJCQrVdN44Iy+Og7eMusezBnQ9MEdjsdtK2QqiUgdBrwzmcsje+/AjF9JE6Dz8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=erCkFVAV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="erCkFVAV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 91602C2BD10; Tue, 14 May 2024 11:03:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1715684638; bh=w943OfC6go48wRb8h+A9Vlq7fnB3tAAVXKCATcMe7Gs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=erCkFVAVvReG+olFVO7a6ZzNz/Jyy8JCtQk9Aa8le5EQ2o7CTCwJqf+GsVXIDaLJ7 TGZvil1laBJTShSgrN6/MGxUVedGRZD9qxg9mNNK4Ui3tNMOrNycF31yl4c1kyirje lz7phrdfJO2/cTR6/jsuYILa0ovncZOVvDu1/u/c= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jerome Brunet , Mark Brown , Sasha Levin Subject: [PATCH 6.6 068/301] ASoC: meson: axg-tdm-interface: manage formatters in trigger Date: Tue, 14 May 2024 12:15:39 +0200 Message-ID: <20240514101034.810204516@linuxfoundation.org> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240514101032.219857983@linuxfoundation.org> References: <20240514101032.219857983@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jerome Brunet [ Upstream commit f949ed458ad15a00d41b37c745ebadaef171aaae ] So far, the formatters have been reset/enabled using the .prepare() callback. This was done in this callback because walking the formatters use a mutex. A mutex is used because formatter handling require dealing possibly slow clock operation. With the support of non-atomic, .trigger() callback may be used which also allows to properly enable and disable formatters on start but also pause/resume. This solve a random shift on TDMIN as well repeated samples on for TDMOUT. Fixes: d60e4f1e4be5 ("ASoC: meson: add tdm interface driver") Signed-off-by: Jerome Brunet Link: https://lore.kernel.org/r/20240426152946.3078805-4-jbrunet@baylibre.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/meson/axg-tdm-interface.c | 34 ++++++++++++++++------------- 1 file changed, 19 insertions(+), 15 deletions(-) diff --git a/sound/soc/meson/axg-tdm-interface.c b/sound/soc/meson/axg-tdm-interface.c index 2cedbce738373..a71790908e178 100644 --- a/sound/soc/meson/axg-tdm-interface.c +++ b/sound/soc/meson/axg-tdm-interface.c @@ -349,26 +349,31 @@ static int axg_tdm_iface_hw_params(struct snd_pcm_substream *substream, return 0; } -static int axg_tdm_iface_hw_free(struct snd_pcm_substream *substream, +static int axg_tdm_iface_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) { - struct axg_tdm_stream *ts = snd_soc_dai_get_dma_data(dai, substream); + struct axg_tdm_stream *ts = + snd_soc_dai_get_dma_data(dai, substream); - /* Stop all attached formatters */ - axg_tdm_stream_stop(ts); + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + axg_tdm_stream_start(ts); + break; + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_STOP: + axg_tdm_stream_stop(ts); + break; + default: + return -EINVAL; + } return 0; } -static int axg_tdm_iface_prepare(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct axg_tdm_stream *ts = snd_soc_dai_get_dma_data(dai, substream); - - /* Force all attached formatters to update */ - return axg_tdm_stream_reset(ts); -} - static int axg_tdm_iface_remove_dai(struct snd_soc_dai *dai) { int stream; @@ -412,8 +417,7 @@ static const struct snd_soc_dai_ops axg_tdm_iface_ops = { .set_fmt = axg_tdm_iface_set_fmt, .startup = axg_tdm_iface_startup, .hw_params = axg_tdm_iface_hw_params, - .prepare = axg_tdm_iface_prepare, - .hw_free = axg_tdm_iface_hw_free, + .trigger = axg_tdm_iface_trigger, }; /* TDM Backend DAIs */ -- 2.43.0