[RESEND PATCH 02/14] bus: mhi: core: Cache intmod from mhi event to mhi channel

[Manivannan Sadhasivam]

From: Hemant Kumar 

Driver is using zero initialized intmod value from mhi channel when
configuring TRE for bei field. This prevents interrupt moderation to
take effect in case it is supported by an event ring. Fix this by
copying intmod value from associated event ring to mhi channel upon
registering mhi controller.

Signed-off-by: Hemant Kumar 
Signed-off-by: Bhaumik Bhatt 
Reviewed-by: Jeffrey Hugo 
Reviewed-by: Manivannan Sadhasivam 
Signed-off-by: Manivannan Sadhasivam 
---
 drivers/bus/mhi/core/init.c | 4 
 1 file changed, 4 insertions(+)

diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index eb2ab058a01d..1a93d24efffc 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -863,6 +863,10 @@ int mhi_register_controller(struct mhi_controller 
*mhi_cntrl,
mutex_init(_chan->mutex);
init_completion(_chan->completion);
rwlock_init(_chan->lock);
+
+   /* used in setting bei field of TRE */
+   mhi_event = _cntrl->mhi_event[mhi_chan->er_index];
+   mhi_chan->intmod = mhi_event->intmod;
}
 
if (mhi_cntrl->bounce_buf) {
-- 
2.17.1

[PATCH 02/14] bus: mhi: core: Cache intmod from mhi event to mhi channel

[mani]

From: Hemant Kumar 

Driver is using zero initialized intmod value from mhi channel when
configuring TRE for bei field. This prevents interrupt moderation to
take effect in case it is supported by an event ring. Fix this by
copying intmod value from associated event ring to mhi channel upon
registering mhi controller.

Signed-off-by: Hemant Kumar 
Signed-off-by: Bhaumik Bhatt 
Reviewed-by: Jeffrey Hugo 
Reviewed-by: Manivannan Sadhasivam 
Signed-off-by: Manivannan Sadhasivam 
---
 drivers/bus/mhi/core/init.c | 4 
 1 file changed, 4 insertions(+)

diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index eb2ab058a01d..1a93d24efffc 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -863,6 +863,10 @@ int mhi_register_controller(struct mhi_controller 
*mhi_cntrl,
mutex_init(_chan->mutex);
init_completion(_chan->completion);
rwlock_init(_chan->lock);
+
+   /* used in setting bei field of TRE */
+   mhi_event = _cntrl->mhi_event[mhi_chan->er_index];
+   mhi_chan->intmod = mhi_event->intmod;
}
 
if (mhi_cntrl->bounce_buf) {
-- 
2.26.GIT