From: Vinod Koul <vkoul@kernel.org>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: yung-chuan.liao@linux.intel.com,
pierre-louis.bossart@linux.intel.com, sanyog.r.kale@intel.com,
linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org
Subject: Re: [PATCH 4/6] soundwire: qcom: start the clock during initialization
Date: Mon, 1 Feb 2021 19:51:34 +0530 [thread overview]
Message-ID: <20210201142134.GC2771@vkoul-mobl> (raw)
In-Reply-To: <20210129173248.5941-5-srinivas.kandagatla@linaro.org>
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 <srinivas.kandagatla@linaro.org>
> ---
> 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
next prev parent reply other threads:[~2021-02-01 14:23 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 17:32 [PATCH 0/6] soundwire: qcom: various improvements Srinivas Kandagatla
2021-01-29 17:32 ` [PATCH 1/6] soundwire: qcom: add support to missing transport params Srinivas Kandagatla
2021-01-29 19:20 ` Pierre-Louis Bossart
2021-02-01 15:50 ` Srinivas Kandagatla
2021-02-01 16:33 ` Pierre-Louis Bossart
2021-02-01 14:13 ` Vinod Koul
2021-02-01 15:50 ` Srinivas Kandagatla
2021-01-29 17:32 ` [PATCH 2/6] soundwire: qcom: extract version field Srinivas Kandagatla
2021-01-29 17:32 ` [PATCH 3/6] soundwire: qcom: set continue execution flag for ignored commands Srinivas Kandagatla
2021-01-29 19:21 ` Pierre-Louis Bossart
2021-02-01 14:16 ` Vinod Koul
2021-02-01 15:50 ` Srinivas Kandagatla
2021-02-02 4:46 ` Vinod Koul
2021-01-29 17:32 ` [PATCH 4/6] soundwire: qcom: start the clock during initialization Srinivas Kandagatla
2021-02-01 14:21 ` Vinod Koul [this message]
2021-02-01 15:50 ` Srinivas Kandagatla
2021-02-02 4:46 ` Vinod Koul
2021-01-29 17:32 ` [PATCH 5/6] soundwire: qcom: update register read/write routine Srinivas Kandagatla
2021-01-29 19:33 ` Pierre-Louis Bossart
2021-02-01 15:50 ` Srinivas Kandagatla
2021-02-01 16:42 ` Pierre-Louis Bossart
2021-02-02 10:19 ` Srinivas Kandagatla
2021-02-02 16:58 ` Pierre-Louis Bossart
2021-02-01 14:26 ` Vinod Koul
2021-02-01 15:50 ` Srinivas Kandagatla
2021-01-29 17:32 ` [PATCH 6/6] soundwire: qcom: add support to new interrupts Srinivas Kandagatla
2021-01-29 19:38 ` Pierre-Louis Bossart
2021-02-01 15:51 ` Srinivas Kandagatla
2021-02-01 14:31 ` Vinod Koul
2021-02-01 15:51 ` Srinivas Kandagatla
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