[PATCH v5 3/9] soundwire: qcom: set continue execution flag for ignored commands

Srinivas Kandagatla
2021-03-26T06:42:00Z

version 1.5.1 and higher IPs of this controller required to set
continue execution on ignored command flag. This patch sets this flag.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
drivers/soundwire/qcom.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index d05e41f68658..43ec22a5e332 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -40,6 +40,7 @@
#define SWRM_CMD_FIFO_CMD 0x308
#define SWRM_CMD_FIFO_STATUS 0x30C
#define SWRM_CMD_FIFO_CFG_ADDR 0x314
+#define SWRM_CONTINUE_EXEC_ON_CMD_IGNORE BIT(31)
#define SWRM_RD_WR_CMD_RETRIES 0x7
#define SWRM_CMD_FIFO_RD_FIFO_ADDR 0x318
#define SWRM_ENUMERATOR_CFG_ADDR 0x500
@@ -343,7 +344,15 @@ static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl)
ctrl->reg_write(ctrl, SWRM_MCP_CFG_ADDR, val);

/* Configure number of retries of a read/write cmd */
- ctrl->reg_write(ctrl, SWRM_CMD_FIFO_CFG_ADDR, SWRM_RD_WR_CMD_RETRIES);
+ if (ctrl->version > 0x01050001) {
+ /* Only for versions >= 1.5.1 */
+ ctrl->reg_write(ctrl, SWRM_CMD_FIFO_CFG_ADDR,
+ SWRM_RD_WR_CMD_RETRIES |
+ SWRM_CONTINUE_EXEC_ON_CMD_IGNORE);
+ } else {
+ ctrl->reg_write(ctrl, SWRM_CMD_FIFO_CFG_ADDR,
+ SWRM_RD_WR_CMD_RETRIES);
+ }

/* Set IRQ to PULSE */
ctrl->reg_write(ctrl, SWRM_COMP_CFG_ADDR,
--
2.21.0