All of lore.kernel.org
 help / color / mirror / Atom feed
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To: Mark Brown <broonie@kernel.org>, alsa-devel@alsa-project.org
Cc: Banajit Goswami <bgoswami@codeaurora.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	linux-kernel@vger.kernel.org,
	Kenneth Westfield <kwestfie@codeaurora.org>,
	Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH 1/3] ASoC: lpass-platform: use dma_ch instead of rdma_ch/wrdma_ch
Date: Fri, 28 Oct 2016 16:32:18 +0100	[thread overview]
Message-ID: <1477668740-30389-2-git-send-email-srinivas.kandagatla@linaro.org> (raw)
In-Reply-To: <1477668740-30389-1-git-send-email-srinivas.kandagatla@linaro.org>

This patch cleans up usage of wrdma_ch and rdma_ch variables into a
common variable dma_ch, As there is no real use of tracking the dma
channel in two different variables based on stream direction.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 sound/soc/qcom/lpass-platform.c | 53 +++++++++++++----------------------------
 1 file changed, 17 insertions(+), 36 deletions(-)

diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
index e2ff538..2570c96 100644
--- a/sound/soc/qcom/lpass-platform.c
+++ b/sound/soc/qcom/lpass-platform.c
@@ -25,8 +25,7 @@
 #include "lpass.h"
 
 struct lpass_pcm_data {
-	int rdma_ch;
-	int wrdma_ch;
+	int dma_ch;
 	int i2s_port;
 };
 
@@ -95,10 +94,7 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream,
 	int bitwidth;
 	int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start;
 
-	if (dir ==  SNDRV_PCM_STREAM_PLAYBACK)
-		ch = pcm_data->rdma_ch;
-	else
-		ch = pcm_data->wrdma_ch;
+	ch = pcm_data->dma_ch;
 
 	bitwidth = snd_pcm_format_width(format);
 	if (bitwidth < 0) {
@@ -184,11 +180,7 @@ static int lpass_platform_pcmops_hw_free(struct snd_pcm_substream *substream)
 	unsigned int reg;
 	int ret;
 
-	if (substream->stream ==  SNDRV_PCM_STREAM_PLAYBACK)
-		reg = LPAIF_RDMACTL_REG(v, pcm_data->rdma_ch);
-	else
-		reg = LPAIF_WRDMACTL_REG(v, pcm_data->wrdma_ch);
-
+	reg = LPAIF_DMACTL_REG(v, pcm_data->dma_ch, substream->stream);
 	ret = regmap_write(drvdata->lpaif_map, reg, 0);
 	if (ret)
 		dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n",
@@ -207,10 +199,7 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream)
 	struct lpass_variant *v = drvdata->variant;
 	int ret, ch, dir = substream->stream;
 
-	if (dir ==  SNDRV_PCM_STREAM_PLAYBACK)
-		ch = pcm_data->rdma_ch;
-	else
-		ch = pcm_data->wrdma_ch;
+	ch = pcm_data->dma_ch;
 
 	ret = regmap_write(drvdata->lpaif_map,
 			LPAIF_DMABASE_REG(v, ch, dir),
@@ -261,10 +250,7 @@ static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream,
 	struct lpass_variant *v = drvdata->variant;
 	int ret, ch, dir = substream->stream;
 
-	if (dir == SNDRV_PCM_STREAM_PLAYBACK)
-		ch = pcm_data->rdma_ch;
-	else
-		ch = pcm_data->wrdma_ch;
+	ch = pcm_data->dma_ch;
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
@@ -338,10 +324,7 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer(
 	unsigned int base_addr, curr_addr;
 	int ret, ch, dir = substream->stream;
 
-	if (dir == SNDRV_PCM_STREAM_PLAYBACK)
-		ch = pcm_data->rdma_ch;
-	else
-		ch = pcm_data->wrdma_ch;
+	ch = pcm_data->dma_ch;
 
 	ret = regmap_read(drvdata->lpaif_map,
 			LPAIF_DMABASE_REG(v, ch, dir), &base_addr);
@@ -488,13 +471,13 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime)
 	psubstream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 	if (psubstream) {
 		if (v->alloc_dma_channel)
-			data->rdma_ch = v->alloc_dma_channel(drvdata,
+			data->dma_ch = v->alloc_dma_channel(drvdata,
 						SNDRV_PCM_STREAM_PLAYBACK);
 
-		if (data->rdma_ch < 0)
-			return data->rdma_ch;
+		if (data->dma_ch < 0)
+			return data->dma_ch;
 
-		drvdata->substream[data->rdma_ch] = psubstream;
+		drvdata->substream[data->dma_ch] = psubstream;
 
 		ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
 					soc_runtime->platform->dev,
@@ -503,7 +486,7 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime)
 			goto playback_alloc_err;
 
 		ret = regmap_write(drvdata->lpaif_map,
-			LPAIF_RDMACTL_REG(v, data->rdma_ch), 0);
+			LPAIF_RDMACTL_REG(v, data->dma_ch), 0);
 		if (ret) {
 			dev_err(soc_runtime->dev,
 				"%s() error writing to rdmactl reg: %d\n",
@@ -515,15 +498,15 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime)
 	csubstream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 	if (csubstream) {
 		if (v->alloc_dma_channel)
-			data->wrdma_ch = v->alloc_dma_channel(drvdata,
+			data->dma_ch = v->alloc_dma_channel(drvdata,
 						SNDRV_PCM_STREAM_CAPTURE);
 
-		if (data->wrdma_ch < 0) {
-			ret = data->wrdma_ch;
+		if (data->dma_ch < 0) {
+			ret = data->dma_ch;
 			goto capture_alloc_err;
 		}
 
-		drvdata->substream[data->wrdma_ch] = csubstream;
+		drvdata->substream[data->dma_ch] = csubstream;
 
 		ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
 					soc_runtime->platform->dev,
@@ -532,7 +515,7 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime)
 			goto capture_alloc_err;
 
 		ret = regmap_write(drvdata->lpaif_map,
-			LPAIF_WRDMACTL_REG(v, data->wrdma_ch), 0);
+			LPAIF_WRDMACTL_REG(v, data->dma_ch), 0);
 		if (ret) {
 			dev_err(soc_runtime->dev,
 				"%s() error writing to wrdmactl reg: %d\n",
@@ -573,9 +556,7 @@ static void lpass_platform_pcm_free(struct snd_pcm *pcm)
 			drvdata = snd_soc_platform_get_drvdata(rt->platform);
 			data = drvdata->private_data;
 
-			ch = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-				? data->rdma_ch
-				: data->wrdma_ch;
+			ch = data->dma_ch;
 			v = drvdata->variant;
 			drvdata->substream[ch] = NULL;
 			if (v->free_dma_channel)
-- 
2.10.1

  reply	other threads:[~2016-10-28 15:32 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-28 15:32 [PATCH 0/3] ASoC: lpass-platform: Fixes and Cleanup Srinivas Kandagatla
2016-10-28 15:32 ` Srinivas Kandagatla [this message]
2016-10-29 16:12   ` [PATCH 1/3] ASoC: lpass-platform: use dma_ch instead of rdma_ch/wrdma_ch Kenneth Westfield
2016-10-28 15:32 ` [PATCH 2/3] ASoC: lpass-platform: Fix broken pcm data usage Srinivas Kandagatla
2016-10-28 18:26   ` Mark Brown
2016-10-28 21:11     ` Srinivas Kandagatla
2016-10-29 16:14   ` Kenneth Westfield
2016-10-28 15:32 ` [PATCH 3/3] ASoC: lpass-cpu: add module licence and description Srinivas Kandagatla

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1477668740-30389-2-git-send-email-srinivas.kandagatla@linaro.org \
    --to=srinivas.kandagatla@linaro.org \
    --cc=alsa-devel@alsa-project.org \
    --cc=bgoswami@codeaurora.org \
    --cc=broonie@kernel.org \
    --cc=kuninori.morimoto.gx@renesas.com \
    --cc=kwestfie@codeaurora.org \
    --cc=lgirdwood@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=perex@perex.cz \
    --cc=tiwai@suse.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.