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author | Vinod Koul <vkoul@kernel.org> | 2022-11-23 17:21:09 +0300 |
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committer | Vinod Koul <vkoul@kernel.org> | 2022-11-23 17:21:09 +0300 |
commit | ca1c131ccf6e09f4976aeca035f12529c9a7d8a9 (patch) | |
tree | 96d13e6491e88da26212fbd3d1fbcc813db9865d /drivers/soundwire/qcom.c | |
parent | febc50b82bc95089ef1d6f68a101c8a2b701e9ce (diff) | |
parent | 49a467310dc4fae591a3547860ee04d8730780f4 (diff) | |
download | linux-ca1c131ccf6e09f4976aeca035f12529c9a7d8a9.tar.xz |
Merge branch 'fixes' into next
Merge fixes into next as Intel driver has a dependency
Diffstat (limited to 'drivers/soundwire/qcom.c')
-rw-r--r-- | drivers/soundwire/qcom.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index ce00a5cf980c..335424870290 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -345,6 +345,9 @@ static int qcom_swrm_cmd_fifo_wr_cmd(struct qcom_swrm_ctrl *swrm, u8 cmd_data, if (swrm_wait_for_wr_fifo_avail(swrm)) return SDW_CMD_FAIL_OTHER; + if (cmd_id == SWR_BROADCAST_CMD_ID) + reinit_completion(&swrm->broadcast); + /* Its assumed that write is okay as we do not get any status back */ swrm->reg_write(swrm, SWRM_CMD_FIFO_WR_CMD, val); @@ -378,6 +381,12 @@ static int qcom_swrm_cmd_fifo_rd_cmd(struct qcom_swrm_ctrl *swrm, val = swrm_get_packed_reg_val(&swrm->rcmd_id, len, dev_addr, reg_addr); + /* + * Check for outstanding cmd wrt. write fifo depth to avoid + * overflow as read will also increase write fifo cnt. + */ + swrm_wait_for_wr_fifo_avail(swrm); + /* wait for FIFO RD to complete to avoid overflow */ usleep_range(100, 105); swrm->reg_write(swrm, SWRM_CMD_FIFO_RD_CMD, val); |