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Message-ID: <20210625052851.GF4974@workstation>
Date:   Fri, 25 Jun 2021 10:58:51 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Bhaumik Bhatt <bbhatt@...eaurora.org>
Cc:     linux-arm-msm@...r.kernel.org, hemantk@...eaurora.org,
        jhugo@...eaurora.org, linux-kernel@...r.kernel.org,
        loic.poulain@...aro.org, linux-wireless@...r.kernel.org,
        kvalo@...eaurora.org, ath11k@...ts.infradead.org
Subject: Re: [PATCH v4 0/6] BHI/BHIe improvements for MHI power purposes

On Thu, May 06, 2021 at 12:51:39PM -0700, Bhaumik Bhatt wrote:
> This patch series improves the power up behavior by allowing MHI host driver to
> set BHI and/or BHIe offsets early on in the preparation phase and fail pre-power
> up if offsets are not found or not within a limited MMIO region. This also
> allows MHI host to clean up the offsets in the unprepare after power down phase.
> 
> Going forward, controllers will be required to specify a reg_len field which
> will be used to check whether the BHI/BHIe offsets are in range or not.
> 
> This series has been tested on X86_64 architecture with the PCI generic driver
> as controller and an SDX55 device.
> 

Since there is a chance to send this series for 5.14, I've applied it
now to mhi-next!

Thanks,
Mani

> v4:
> -Added reviewed-by tags
> -Updated range check patch to include BHI/e offsets in the error message
> 
> v3:
> -Added reviewed-by tags
> -Updated order of reg_len in mhi_controller structure documentation
> 
> v2:
> -Added reviewed-by tags
> -Moved reg_len entry in mhi_controller structure to allow for a packed struct
> 
> Bhaumik Bhatt (6):
>   bus: mhi: core: Set BHI/BHIe offsets on power up preparation
>   bus: mhi: core: Set BHI and BHIe pointers to NULL in clean-up
>   bus: mhi: Add MMIO region length to controller structure
>   ath11k: set register access length for MHI driver
>   bus: mhi: pci_generic: Set register access length for MHI driver
>   bus: mhi: core: Add range checks for BHI and BHIe
> 
>  drivers/bus/mhi/core/init.c           | 61 ++++++++++++++++++++++++-----------
>  drivers/bus/mhi/core/pm.c             | 28 +++-------------
>  drivers/bus/mhi/pci_generic.c         |  1 +
>  drivers/net/wireless/ath/ath11k/mhi.c |  1 +
>  include/linux/mhi.h                   |  2 ++
>  5 files changed, 50 insertions(+), 43 deletions(-)
> 
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 

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