[PATCH v6 4/9] soundwire: qcom: start the clock during initialization
From: Srinivas Kandagatla <hidden>
Date: 2021-03-30 14:48:30
Also in:
alsa-devel, lkml
Subsystem:
arm/qualcomm mailing list, qcom audio (asoc) drivers, soundwire subsystem, the rest · Maintainers:
Srinivas Kandagatla, Vinod Koul, Bard Liao, Linus Torvalds
Start the clock during initialization, doing this explicitly will add more clarity when we are adding clock stop feature. Signed-off-by: Srinivas Kandagatla <redacted> Reviewed-by: Pierre-Louis Bossart <redacted> --- drivers/soundwire/qcom.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index edc77d18c245..0f2167433d2f 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 */
--
2.21.0