[Sound-open-firmware] [PATCH 1/8] platform: ssp divider: read the ssp clock directly

[Keyon Jie]

We don't need pass the ssp clock param(source), this patch
removes it, replaces it with read back from the ssp clock
directly.

Signed-off-by: Keyon Jie <yang.jie at linux.intel.com>
---
 src/ipc/intel-ipc.c                               | 5 ++---
 src/platform/baytrail/include/platform/platform.h | 3 +--
 src/platform/baytrail/platform.c                  | 4 ++--
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/src/ipc/intel-ipc.c b/src/ipc/intel-ipc.c
index 7aa24f3..16a906b 100644
--- a/src/ipc/intel-ipc.c
+++ b/src/ipc/intel-ipc.c
@@ -570,9 +570,8 @@ static uint32_t ipc_device_set_formats(uint32_t header)
 	dai_dev->dai_config.clk_src = SSP_CLK_EXT;
 
 	/* set SSP M/N dividers */
-	err = platform_ssp_set_mn(config_req.ssp_interface, 
-		25000000, 48000,
-		dai_dev->dai_config.bclk_fs);
+	err = platform_ssp_set_mn(config_req.ssp_interface, 48000,
+			dai_dev->dai_config.bclk_fs);
 	if (err < 0) {
 		trace_ipc_error("eDs");
 		goto error;
diff --git a/src/platform/baytrail/include/platform/platform.h b/src/platform/baytrail/include/platform/platform.h
index 38fcc26..9b1039b 100644
--- a/src/platform/baytrail/include/platform/platform.h
+++ b/src/platform/baytrail/include/platform/platform.h
@@ -88,8 +88,7 @@ int platform_boot_complete(uint32_t boot_message);
 
 int platform_init(void);
 
-int platform_ssp_set_mn(uint32_t ssp_port, uint32_t source, uint32_t rate,
-	uint32_t bclk_fs);
+int platform_ssp_set_mn(uint32_t ssp_port, uint32_t rate, uint32_t bclk_fs);
 
 void platform_ssp_disable_mn(uint32_t ssp_port);
 
diff --git a/src/platform/baytrail/platform.c b/src/platform/baytrail/platform.c
index ea3828f..2276981 100644
--- a/src/platform/baytrail/platform.c
+++ b/src/platform/baytrail/platform.c
@@ -111,10 +111,10 @@ static const struct ssp_mn ssp_mn_conf[] = {
 };
 
 /* set the SSP M/N clock dividers */
-int platform_ssp_set_mn(uint32_t ssp_port, uint32_t source, uint32_t rate,
-	uint32_t bclk_fs)
+int platform_ssp_set_mn(uint32_t ssp_port, uint32_t rate, uint32_t bclk_fs)
 {
 	int i;
+	uint32_t source = clock_get_freq(CLK_SSP);
 
 	/* check for matching config in the table */
 	for (i = 0; i < ARRAY_SIZE(ssp_mn_conf); i++) {
-- 
2.7.4