diff mbox

[2/3] ASoC: ux500_pcm: Differentiate between pdata and DT initialisation

Message ID 1386007222-10081-2-git-send-email-lee.jones@linaro.org
State New
Headers show

Commit Message

Lee Jones Dec. 2, 2013, 6 p.m. UTC 
If booting with full DT support (i.e. DMA too, the last piece of the
puzzle), then we don't need to use the compatible request channel call
back. We also require slightly different flags to inform the core that
we are booting with DT.

Cc: alsa-devel@alsa-project.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 sound/soc/ux500/ux500_pcm.c | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)
diff mbox

Patch

diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c
index 2f1bdb7..00cdd7b 100644
--- a/sound/soc/ux500/ux500_pcm.c
+++ b/sound/soc/ux500/ux500_pcm.c
@@ -134,15 +134,31 @@  static const struct snd_dmaengine_pcm_config ux500_dmaengine_pcm_config = {
 	.prepare_slave_config = ux500_pcm_prepare_slave_config,
 };
 
+static const struct snd_dmaengine_pcm_config ux500_dmaengine_of_pcm_config = {
+	.prepare_slave_config = ux500_pcm_prepare_slave_config,
+};
+
 int ux500_pcm_register_platform(struct platform_device *pdev)
 {
+	const struct snd_dmaengine_pcm_config *pcm_config;
+	struct device_node *np = pdev->dev.of_node;
+	unsigned int pcm_flags;
 	int ret;
 
-	ret = snd_dmaengine_pcm_register(&pdev->dev,
-			&ux500_dmaengine_pcm_config,
-			SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
-			SND_DMAENGINE_PCM_FLAG_COMPAT |
-			SND_DMAENGINE_PCM_FLAG_NO_DT);
+	if (np) {
+		pcm_config = &ux500_dmaengine_of_pcm_config;
+
+		pcm_flags = SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
+			SND_DMAENGINE_PCM_FLAG_COMPAT;
+	} else {
+		pcm_config = &ux500_dmaengine_pcm_config;
+
+		pcm_flags = SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
+			SND_DMAENGINE_PCM_FLAG_NO_DT |
+			SND_DMAENGINE_PCM_FLAG_COMPAT;
+	}
+
+	ret = snd_dmaengine_pcm_register(&pdev->dev, pcm_config, pcm_flags);
 	if (ret < 0) {
 		dev_err(&pdev->dev,
 			"%s: ERROR: Failed to register platform '%s' (%d)!\n",