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From: "Subhransu S. Prusty" <subhransu.s.prusty@intel.com>
To: alsa-devel@alsa-project.org
Cc: tiwai@suse.de, patches.audio@intel.com, broonie@kernel.org,
	"Subhransu S. Prusty" <subhransu.s.prusty@intel.com>,
	lgirdwood@gmail.com
Subject: [PATCH] ASoC: Intel: Skylake: Fix default dma_buffer_size
Date: Fri, 30 Jun 2017 18:38:44 +0530	[thread overview]
Message-ID: <1498828124-17671-1-git-send-email-subhransu.s.prusty@intel.com> (raw)

If the dma_buffer_size is not defined in topology, fix it to 2ms default
value to make backward compatible.

Fixes: f6e6ab1d16ec ("ASoC: Intel: Skylake: Fix dma buffer size calculation")
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
---
 sound/soc/intel/skylake/skl-messages.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c
index eca85827dbd2..fb2f1f603f3c 100644
--- a/sound/soc/intel/skylake/skl-messages.c
+++ b/sound/soc/intel/skylake/skl-messages.c
@@ -540,6 +540,14 @@ static void skl_setup_cpr_gateway_cfg(struct skl_sst *ctx,
 	cpr_mconfig->gtw_cfg.dma_buffer_size =
 				mconfig->dma_buffer_size * dma_io_buf;
 
+	/* fallback to 2ms default value */
+	if (!cpr_mconfig->gtw_cfg.dma_buffer_size) {
+		if (mconfig->hw_conn_type == SKL_CONN_SOURCE)
+			cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * mconfig->obs;
+		else
+			cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * mconfig->ibs;
+	}
+
 	cpr_mconfig->cpr_feature_mask = 0;
 	cpr_mconfig->gtw_cfg.config_length  = 0;
 
-- 
1.9.1

             reply	other threads:[~2017-06-30 13:24 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-30 13:08 Subhransu S. Prusty [this message]
2017-07-03 11:10 ` [PATCH] ASoC: Intel: Skylake: Fix default dma_buffer_size Vinod Koul
2017-07-10 18:41 ` Applied "ASoC: Intel: Skylake: Fix default dma_buffer_size" to the asoc tree Mark Brown

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