Qualcomm Soundwire v2.0.0 controller comes with new interrupt bit for ignored commands. Add code to handle it in the interrupt service routine.
Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org --- drivers/soundwire/qcom.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index 3ae3e5896308..3061db6adac7 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -61,6 +61,7 @@ #define SWRM_INTERRUPT_STATUS_BUS_RESET_FINISHED_V2 BIT(13) #define SWRM_INTERRUPT_STATUS_CLK_STOP_FINISHED_V2 BIT(14) #define SWRM_INTERRUPT_STATUS_EXT_CLK_STOP_WAKEUP BIT(16) +#define SWRM_INTERRUPT_STATUS_CMD_IGNORED_AND_EXEC_CONTINUED BIT(19) #define SWRM_INTERRUPT_MAX 17 #define SWRM_V1_3_INTERRUPT_MASK_ADDR 0x204 #define SWRM_V1_3_INTERRUPT_CLEAR 0x208 @@ -792,6 +793,17 @@ static irqreturn_t qcom_swrm_irq_handler(int irq, void *dev_id) break; case SWRM_INTERRUPT_STATUS_EXT_CLK_STOP_WAKEUP: break; + case SWRM_INTERRUPT_STATUS_CMD_IGNORED_AND_EXEC_CONTINUED: + ctrl->reg_read(ctrl, + ctrl->reg_layout[SWRM_REG_CMD_FIFO_STATUS], + &value); + dev_err(ctrl->dev, + "%s: SWR CMD ignored, fifo status %x\n", + __func__, value); + + /* Wait 3.5ms to clear */ + usleep_range(3500, 3505); + break; default: dev_err_ratelimited(ctrl->dev, "%s: SWR unknown interrupt value: %d\n",