diff mbox series

[v4,4/9] soundwire: qcom: start the clock during initialization

Message ID 20210312120009.22386-5-srinivas.kandagatla@linaro.org
State Superseded
Headers show
Series soundwire: qcom: various improvements | expand

Commit Message

Srinivas Kandagatla March 12, 2021, noon UTC 
Start the clock during initialization, doing this explicitly
will add more clarity when we are adding clock stop feature.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

---
 drivers/soundwire/qcom.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.21.0
diff mbox series

Patch

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 43ec22a5e332..2bcb4362f0e0 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -47,6 +47,8 @@ 
 #define SWRM_MCP_FRAME_CTRL_BANK_ADDR(m)		(0x101C + 0x40 * (m))
 #define SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK			GENMASK(2, 0)
 #define SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK			GENMASK(7, 3)
+#define SWRM_MCP_BUS_CTRL					0x1044
+#define SWRM_MCP_BUS_CLK_START					BIT(1)
 #define SWRM_MCP_CFG_ADDR					0x1048
 #define SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK		GENMASK(21, 17)
 #define SWRM_DEF_CMD_NO_PINGS					0x1f
@@ -343,6 +345,7 @@  static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl)
 	u32p_replace_bits(&val, SWRM_DEF_CMD_NO_PINGS, SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK);
 	ctrl->reg_write(ctrl, SWRM_MCP_CFG_ADDR, val);
 
+	ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL, SWRM_MCP_BUS_CLK_START);
 	/* Configure number of retries of a read/write cmd */
 	if (ctrl->version > 0x01050001) {
 		/* Only for versions >= 1.5.1 */