[v1,5/7] bus: mhi: core: Identify Flash Programmer as a mission mode use case
diff mbox series

Message ID 1617067704-28850-6-git-send-email-bbhatt@codeaurora.org
State Accepted
Commit d20e82d4d0167925191f57ccff8b6c406c06176f
Headers show
Series
  • MHI Emergency download and flash programmer support
Related show

Commit Message

Bhaumik Bhatt March 30, 2021, 1:28 a.m. UTC
MHI power up can go through an EDL to Flash Programmer path when
the device has a blank NAND. In those cases, mhi_sync_power_up()
can timeout waiting for a mission mode execution environment.
Allow a successful power up instead by identifying Flash
Programmer as a valid mission mode execution environment with a
purpose to flash the device image contents.

Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/bus/mhi/core/internal.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Loic Poulain March 30, 2021, 8:02 a.m. UTC | #1
On Tue, 30 Mar 2021 at 03:28, Bhaumik Bhatt <bbhatt@codeaurora.org> wrote:
>
> MHI power up can go through an EDL to Flash Programmer path when
> the device has a blank NAND. In those cases, mhi_sync_power_up()
> can timeout waiting for a mission mode execution environment.
> Allow a successful power up instead by identifying Flash
> Programmer as a valid mission mode execution environment with a
> purpose to flash the device image contents.
>
> 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/internal.h b/drivers/bus/mhi/core/internal.h
index b1b5f2b..7aa5cfd 100644
--- a/drivers/bus/mhi/core/internal.h
+++ b/drivers/bus/mhi/core/internal.h
@@ -379,7 +379,8 @@  extern const char * const mhi_ee_str[MHI_EE_MAX];
 #define MHI_IN_PBL(ee) (ee == MHI_EE_PBL || ee == MHI_EE_PTHRU || \
 			ee == MHI_EE_EDL)
 
-#define MHI_IN_MISSION_MODE(ee) (ee == MHI_EE_AMSS || ee == MHI_EE_WFW)
+#define MHI_IN_MISSION_MODE(ee) (ee == MHI_EE_AMSS || ee == MHI_EE_WFW || \
+				 ee == MHI_EE_FP)
 
 enum dev_st_transition {
 	DEV_ST_TRANSITION_PBL,