[v1,2/7] bus: mhi: core: Wait for ready after an EDL firmware download
diff mbox series

Message ID 1617067704-28850-3-git-send-email-bbhatt@codeaurora.org
State Accepted
Commit 4f214496ac7421b027a41d067e7753ee0bc5ad6c
Headers show
Series
  • MHI Emergency download and flash programmer support
Related show

Commit Message

Bhaumik Bhatt March 30, 2021, 1:28 a.m. UTC
Currently, the firmware load handler returns after the EDL image
is downloaded. Wait for an MHI READY transition instead as the
specification expects so as to proceed with further bootup such
as device entering Flash Programmer execution environment.

Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/bus/mhi/core/boot.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Loic Poulain March 30, 2021, 8:01 a.m. UTC | #1
On Tue, 30 Mar 2021 at 03:28, Bhaumik Bhatt <bbhatt@codeaurora.org> wrote:
>
> Currently, the firmware load handler returns after the EDL image
> is downloaded. Wait for an MHI READY transition instead as the
> specification expects so as to proceed with further bootup such
> as device entering Flash Programmer execution environment.
>
> Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

Reviewed-by: Loic Poulain <loic.poulain@linaro.org>

Patch
diff mbox series

diff --git a/drivers/bus/mhi/core/boot.c b/drivers/bus/mhi/core/boot.c
index 84c2117..0f0ae88 100644
--- a/drivers/bus/mhi/core/boot.c
+++ b/drivers/bus/mhi/core/boot.c
@@ -418,7 +418,7 @@  void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl)
 
 	/* If device is in pass through, do reset to ready state transition */
 	if (mhi_cntrl->ee == MHI_EE_PTHRU)
-		goto fw_load_ee_pthru;
+		goto fw_load_ready_state;
 
 	fw_name = (mhi_cntrl->ee == MHI_EE_EDL) ?
 		mhi_cntrl->edl_image : mhi_cntrl->fw_image;
@@ -460,10 +460,10 @@  void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl)
 		goto error_fw_load;
 	}
 
-	/* Exit if EDL image was loaded */
+	/* Wait for ready since EDL image was loaded */
 	if (fw_name == mhi_cntrl->edl_image) {
 		release_firmware(firmware);
-		return;
+		goto fw_load_ready_state;
 	}
 
 	write_lock_irq(&mhi_cntrl->pm_lock);
@@ -488,7 +488,7 @@  void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl)
 
 	release_firmware(firmware);
 
-fw_load_ee_pthru:
+fw_load_ready_state:
 	/* Transitioning into MHI RESET->READY state */
 	ret = mhi_ready_state_transition(mhi_cntrl);
 	if (ret) {