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bus: mhi: core: Do not process SYS_ERROR if RDDM is supported

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Devices that support RDDM do not require processing SYS_ERROR as it is
deemed redundant. Avoid SYS_ERROR processing if RDDM is supported by
the device.

Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200521170249.21795-13-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hemant Kumar 2020-05-21 22:32:47 +05:30 committed by Greg Kroah-Hartman
parent ada5e1def5
commit 30b7892417
1 changed files with 8 additions and 3 deletions
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11
drivers/bus/mhi/core/main.c
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@ -397,9 +397,9 @@ irqreturn_t mhi_intvec_threaded_handler(int irq_number, void *priv)
}
write_unlock_irq(&mhi_cntrl->pm_lock);
/* If device in RDDM don't bother processing SYS error */
if (mhi_cntrl->ee == MHI_EE_RDDM) {
if (mhi_cntrl->ee != ee) {
/* If device supports RDDM don't bother processing SYS error */
if (mhi_cntrl->rddm_image) {
if (mhi_cntrl->ee == MHI_EE_RDDM && mhi_cntrl->ee != ee) {
mhi_cntrl->status_cb(mhi_cntrl, MHI_CB_EE_RDDM);
wake_up_all(&mhi_cntrl->state_event);
}
@ -735,6 +735,11 @@ int mhi_process_ctrl_ev_ring(struct mhi_controller *mhi_cntrl,
{
enum mhi_pm_state new_state;
/* skip SYS_ERROR handling if RDDM supported */
if (mhi_cntrl->ee == MHI_EE_RDDM ||
mhi_cntrl->rddm_image)
break;
dev_dbg(dev, "System error detected\n");
write_lock_irq(&mhi_cntrl->pm_lock);
new_state = mhi_tryset_pm_state(mhi_cntrl,