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-rw-r--r--sound/soc/blackfin/bf5xx-i2s.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c
index 964824419678..0e8af48650be 100644
--- a/sound/soc/blackfin/bf5xx-i2s.c
+++ b/sound/soc/blackfin/bf5xx-i2s.c
@@ -50,6 +50,7 @@ struct bf5xx_i2s_port {
50 u16 tcr2; 50 u16 tcr2;
51 u16 rcr2; 51 u16 rcr2;
52 int counter; 52 int counter;
53 int configured;
53}; 54};
54 55
55static struct bf5xx_i2s_port bf5xx_i2s; 56static struct bf5xx_i2s_port bf5xx_i2s;
@@ -168,7 +169,7 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
168 break; 169 break;
169 } 170 }
170 171
171 if (bf5xx_i2s.counter == 1) { 172 if (!bf5xx_i2s.configured) {
172 /* 173 /*
173 * TX and RX are not independent,they are enabled at the 174 * TX and RX are not independent,they are enabled at the
174 * same time, even if only one side is running. So, we 175 * same time, even if only one side is running. So, we
@@ -177,6 +178,7 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
177 * 178 *
178 * CPU DAI:slave mode. 179 * CPU DAI:slave mode.
179 */ 180 */
181 bf5xx_i2s.configured = 1;
180 ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1, 182 ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
181 bf5xx_i2s.rcr2, 0, 0); 183 bf5xx_i2s.rcr2, 0, 0);
182 if (ret) { 184 if (ret) {
@@ -200,6 +202,9 @@ static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream,
200{ 202{
201 pr_debug("%s enter\n", __func__); 203 pr_debug("%s enter\n", __func__);
202 bf5xx_i2s.counter--; 204 bf5xx_i2s.counter--;
205 /* No active stream, SPORT is allowed to be configured again. */
206 if (!bf5xx_i2s.counter)
207 bf5xx_i2s.configured = 0;
203} 208}
204 209
205static int bf5xx_i2s_probe(struct platform_device *pdev, 210static int bf5xx_i2s_probe(struct platform_device *pdev,