ASoC: fsi: add master clock control functions
Current FSI driver required set_rate() platform callback function
to set audio clock if it was master mode,
because it seemed that CPG/FSI-DIV clocks calculation depend on
platform/board/cpu.
But it was calculable regardless of platform.
This patch supports audio clock calculation method,
but the sampling rate under 32kHz is not supported at this point.
Old type set_rate() is still supported now,
but it will be deleted on next version
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/include/sound/sh_fsi.h b/include/sound/sh_fsi.h
index 9060103..27ee1dc 100644
--- a/include/sound/sh_fsi.h
+++ b/include/sound/sh_fsi.h
@@ -26,6 +26,7 @@
* A: inversion
* B: format mode
* C: chip specific
+ * D: clock selecter if master mode
*/
/* A: clock inversion */
@@ -44,6 +45,11 @@
#define SH_FSI_OPTION_MASK 0x00000F00
#define SH_FSI_ENABLE_STREAM_MODE (1 << 8) /* for 16bit data */
+/* D: clock selecter if master mode */
+#define SH_FSI_CLK_MASK 0x0000F000
+#define SH_FSI_CLK_EXTERNAL (1 << 12)
+#define SH_FSI_CLK_CPG (2 << 12) /* FSIxCK + FSI-DIV */
+
/*
* set_rate return value
*