From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To: vkoul@kernel.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,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH v3 4/9] soundwire: qcom: start the clock during initialization
Date: Mon, 8 Mar 2021 13:49:52 +0000 [thread overview]
Message-ID: <20210308134957.16024-5-srinivas.kandagatla@linaro.org> (raw)
In-Reply-To: <20210308134957.16024-1-srinivas.kandagatla@linaro.org>
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(+)
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 076a2b1b6d6d..071d05d3a971 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
next prev parent reply other threads:[~2021-03-08 13:51 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-08 13:49 [PATCH v3 0/9] soundwire: qcom: various improvements Srinivas Kandagatla
2021-03-08 13:49 ` [PATCH v3 1/9] dt-bindings: soundwire: qcom: clarify data port bus parameters Srinivas Kandagatla
2021-03-08 13:49 ` [PATCH v3 2/9] soundwire: qcom: add support to missing transport params Srinivas Kandagatla
2021-03-08 13:49 ` [PATCH v3 3/9] soundwire: qcom: set continue execution flag for ignored commands Srinivas Kandagatla
2021-03-08 13:49 ` Srinivas Kandagatla [this message]
2021-03-08 13:49 ` [PATCH v3 5/9] soundwire: qcom: update register read/write routine Srinivas Kandagatla
2021-03-08 13:49 ` [PATCH v3 6/9] soundwire: qcom: add support to new interrupts Srinivas Kandagatla
2021-03-08 13:49 ` [PATCH v3 7/9] soundwire: export sdw_compare_devid() and sdw_extract_slave_id() Srinivas Kandagatla
2021-03-08 13:49 ` [PATCH v3 8/9] soundwire: qcom: add auto enumeration support Srinivas Kandagatla
2021-03-08 15:56 ` Pierre-Louis Bossart
2021-03-08 16:16 ` Srinivas Kandagatla
2021-03-08 13:49 ` [PATCH v3 9/9] soundwire: qcom: wait for enumeration to be complete in probe Srinivas Kandagatla
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