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From 06d8069b308a1655e0c248b6bd556e63d9b38099 Mon Sep 17 00:00:00 2001
From: Viorel Suman <viorel.suman@nxp.com>
Date: Wed, 3 May 2017 10:16:02 +0300
Subject: [PATCH] ASoC: fsl_sai: handle slave mode per TX/RX direction
The SAI interface can be a clock supplier or consummer
as function of stream direction, ie when interacting
with I2S XTOR. Removed FSL_SAI_RFR define as it is now
referred as FSL_SAI_RFR0.
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
---
sound/soc/fsl/fsl_sai.c | 18 +++++++++---------
sound/soc/fsl/fsl_sai.h | 3 +--
2 files changed, 10 insertions(+), 11 deletions(-)
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -300,7 +300,7 @@ static int fsl_sai_set_dai_fmt_tr(struct
return -EINVAL;
}
- sai->is_slave_mode = false;
+ sai->slave_mode[tx] = false;
/* DAI clock master masks */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
@@ -310,7 +310,7 @@ static int fsl_sai_set_dai_fmt_tr(struct
sai->is_slave_mode = false;
break;
case SND_SOC_DAIFMT_CBM_CFM:
- sai->is_slave_mode = true;
+ sai->slave_mode[tx] = true;
break;
case SND_SOC_DAIFMT_CBS_CFM:
val_cr2 |= FSL_SAI_CR2_BCD_MSTR;
@@ -318,7 +318,7 @@ static int fsl_sai_set_dai_fmt_tr(struct
break;
case SND_SOC_DAIFMT_CBM_CFS:
val_cr4 |= FSL_SAI_CR4_FSD_MSTR;
- sai->is_slave_mode = true;
+ sai->slave_mode[tx] = true;
break;
default:
return -EINVAL;
@@ -359,7 +359,7 @@ static int fsl_sai_set_bclk(struct snd_s
int ret = 0;
/* Don't apply to slave mode */
- if (sai->is_slave_mode)
+ if (sai->slave_mode[tx])
return 0;
for (id = 0; id < FSL_SAI_MCLK_MAX; id++) {
@@ -454,7 +454,7 @@ static int fsl_sai_hw_params(struct snd_
if (sai->slot_width)
slot_width = sai->slot_width;
- if (!sai->is_slave_mode) {
+ if (!sai->slave_mode[tx]) {
ret = fsl_sai_set_bclk(cpu_dai, tx,
slots * slot_width * params_rate(params));
if (ret)
@@ -490,7 +490,7 @@ static int fsl_sai_hw_params(struct snd_
* error.
*/
- if (!sai->is_slave_mode) {
+ if (!sai->slave_mode[tx]) {
if (!sai->synchronous[TX] && sai->synchronous[RX] && !tx) {
regmap_update_bits(sai->regmap, FSL_SAI_TCR4,
FSL_SAI_CR4_SYWD_MASK | FSL_SAI_CR4_FRSZ_MASK,
@@ -519,7 +519,7 @@ static int fsl_sai_hw_params(struct snd_
* error.
*/
- if (!sai->is_slave_mode) {
+ if (!sai->slave_mode[tx]) {
if (!sai->synchronous[TX] && sai->synchronous[RX] && !tx) {
regmap_update_bits(sai->regmap, FSL_SAI_TCR4,
FSL_SAI_CR4_SYWD_MASK | FSL_SAI_CR4_FRSZ_MASK,
@@ -577,7 +577,7 @@ static int fsl_sai_hw_free(struct snd_pc
struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
- if (!sai->is_slave_mode &&
+ if (!sai->slave_mode[tx] &&
sai->mclk_streams & BIT(substream->stream)) {
clk_disable_unprepare(sai->mclk_clk[sai->mclk_id[tx]]);
sai->mclk_streams &= ~BIT(substream->stream);
@@ -672,7 +672,7 @@ static int fsl_sai_trigger(struct snd_pc
* This is a hardware bug, and will be fix in the
* next sai version.
*/
- if (!sai->is_slave_mode) {
+ if (!sai->slave_mode[tx]) {
/* Software Reset for both Tx and Rx */
regmap_write(sai->regmap,
FSL_SAI_TCSR, FSL_SAI_CSR_SR);
--- a/sound/soc/fsl/fsl_sai.h
+++ b/sound/soc/fsl/fsl_sai.h
@@ -37,7 +37,6 @@
#define FSL_SAI_RDR1 0xa4 /* SAI Receive Data */
#define FSL_SAI_RFR0 0xc0 /* SAI Receive FIFO */
#define FSL_SAI_RFR1 0xc4 /* SAI Receive FIFO */
-#define FSL_SAI_RFR 0xc0 /* SAI Receive FIFO */
#define FSL_SAI_RMR 0xe0 /* SAI Receive Mask */
#define FSL_SAI_xCSR(tx) (tx ? FSL_SAI_TCSR : FSL_SAI_RCSR)
@@ -158,7 +157,7 @@ struct fsl_sai {
struct clk *bus_clk;
struct clk *mclk_clk[FSL_SAI_MCLK_MAX];
- bool is_slave_mode;
+ bool slave_mode[2];
bool is_lsb_first;
bool is_dsp_mode;
bool sai_on_imx;
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