On 29-01-21, 17:32, Srinivas Kandagatla wrote:
> Start the clock during initialization.

A detailed log please, which clock..? Also how do older controllers work
w/o this clk

> 
> Signed-off-by: Srinivas Kandagatla <[email protected]>
> ---
>  drivers/soundwire/qcom.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
> index 3669bac11a32..83df15d83935 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
> @@ -345,6 +347,7 @@ 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_major == 1 && ctrl->version_minor >= 5 &&
>           ctrl->version_step >= 1) {
> -- 
> 2.21.0

-- 
~Vinod

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