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| author |   Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2020-02-20 15:28:47 +0530 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-19 07:41:05 +0100 |
| commit | 6fdfdd27328ceef39f4b8daec3510874ad68e753 (patch) | |
| tree | d2a63f02f19fc641001a5f6daccbb3eca0967b46 /drivers/bus/mhi/core/internal.h | |
| parent | bus: mhi: core: Add support for downloading firmware over BHIe (diff) | |
| download | wireguard-linux-6fdfdd27328ceef39f4b8daec3510874ad68e753.tar.xz wireguard-linux-6fdfdd27328ceef39f4b8daec3510874ad68e753.zip | |
bus: mhi: core: Add support for downloading RDDM image during panic
MHI protocol supports downloading RDDM (RAM Dump) image from the
device through BHIE. This is useful to debugging as the RDDM image
can capture the firmware state.
This is based on the patch submitted by Sujeev Dias:
https://lkml.org/lkml/2018/7/9/989
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
[mani: splitted the data transfer patch and cleaned up for upstream]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Link: https://lore.kernel.org/r/20200220095854.4804-10-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/bus/mhi/core/internal.h')
| -rw-r--r-- | drivers/bus/mhi/core/internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h index 0f6246c6162e..e1d3f2ca4922 100644 --- a/drivers/bus/mhi/core/internal.h +++ b/drivers/bus/mhi/core/internal.h @@ -614,6 +614,8 @@ int mhi_init_dev_ctxt(struct mhi_controller *mhi_cntrl); void mhi_deinit_dev_ctxt(struct mhi_controller *mhi_cntrl); int mhi_init_irq_setup(struct mhi_controller *mhi_cntrl); void mhi_deinit_free_irq(struct mhi_controller *mhi_cntrl); +void mhi_rddm_prepare(struct mhi_controller *mhi_cntrl, + struct image_info *img_info); /* Memory allocation methods */ static inline void *mhi_alloc_coherent(struct mhi_controller *mhi_cntrl, |