diff mbox series

[v1,4/5] bus: mhi: core: Do not process SYS_ERROR if RDDM is supported

Message ID 1589248989-23824-5-git-send-email-hemantk@codeaurora.org (mailing list archive)
State Accepted
Commit 30b7892417c50a05bf4a2ad56c2e1355d4d1404a
Headers show
Series MHI Misc Fixes | expand

Commit Message

Hemant Kumar May 12, 2020, 2:03 a.m. UTC 
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>
---
 drivers/bus/mhi/core/main.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

Comments

Manivannan Sadhasivam May 12, 2020, 6:55 a.m. UTC | #1 
On Mon, May 11, 2020 at 07:03:08PM -0700, Hemant Kumar wrote:
> 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>

Thanks,
Mani

> ---
>  drivers/bus/mhi/core/main.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
> index 467c0ba..1f622ce 100644
> --- a/drivers/bus/mhi/core/main.c
> +++ b/drivers/bus/mhi/core/main.c
> @@ -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,
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
diff mbox series

Patch

diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
index 467c0ba..1f622ce 100644
--- a/drivers/bus/mhi/core/main.c
+++ b/drivers/bus/mhi/core/main.c
@@ -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,