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-rw-r--r--sound/soc/davinci/davinci-sffsdr.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/sound/soc/davinci/davinci-sffsdr.c b/sound/soc/davinci/davinci-sffsdr.c
index 4935d1bcbd8..50baef1fe5b 100644
--- a/sound/soc/davinci/davinci-sffsdr.c
+++ b/sound/soc/davinci/davinci-sffsdr.c
@@ -25,7 +25,9 @@
#include <asm/dma.h>
#include <asm/mach-types.h>
+#ifdef CONFIG_SFFSDR_FPGA
#include <asm/plat-sffsdr/sffsdr-fpga.h>
+#endif
#include <mach/mcbsp.h>
#include <mach/edma.h>
@@ -43,6 +45,17 @@ static int sffsdr_hw_params(struct snd_pcm_substream *substream,
int fs;
int ret = 0;
+ /* Fsref can be 32000, 44100 or 48000. */
+ fs = params_rate(params);
+
+#ifndef CONFIG_SFFSDR_FPGA
+ /* Without the FPGA module, the Fs is fixed at 44100 Hz */
+ if (fs != 44100) {
+ pr_debug("warning: only 44.1 kHz is supported without SFFSDR FPGA module\n");
+ return -EINVAL;
+ }
+#endif
+
/* Set cpu DAI configuration:
* CLKX and CLKR are the inputs for the Sample Rate Generator.
* FSX and FSR are outputs, driven by the sample Rate Generator. */
@@ -53,12 +66,13 @@ static int sffsdr_hw_params(struct snd_pcm_substream *substream,
if (ret < 0)
return ret;
- /* Fsref can be 32000, 44100 or 48000. */
- fs = params_rate(params);
-
pr_debug("sffsdr_hw_params: rate = %d Hz\n", fs);
+#ifndef CONFIG_SFFSDR_FPGA
+ return 0;
+#else
return sffsdr_fpga_set_codec_fs(fs);
+#endif
}
static struct snd_soc_ops sffsdr_ops = {