[RFC PATCH v2] scsi: ufs-mediatek: add inline encryption support

[Eric Biggers]

Hi Stanley,

On Wed, Mar 04, 2020 at 10:21:02AM +0800, Stanley Chu wrote:
> Add inline encryption support to ufs-mediatek.
> 
> The standards-compliant parts, such as querying the crypto capabilities
> and enabling crypto for individual UFS requests, are already handled by
> ufshcd-crypto.c, which itself is wired into the blk-crypto framework.
> 
> However MediaTek UFS host requires a vendor-specific hce_enable operation
> to allow crypto-related registers being accessed normally in kernel.
> After this step, MediaTek UFS host can work as standard-compliant host
> for inline-encryption related functions.
> 
> This patch is rebased to below repo and tag:
> 	Repo: https://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git
> 	Tag: inline-encryption-v7
> 
> Signed-off-by: Stanley Chu <stanley.chu at mediatek.com>
> ---
>  drivers/scsi/ufs/ufs-mediatek.c | 27 ++++++++++++++++++++++++++-
>  drivers/scsi/ufs/ufs-mediatek.h |  1 +
>  2 files changed, 27 insertions(+), 1 deletion(-)

Now that the ufshcd-crypto patches this depends on are in 5.9/scsi-queue, could
you retest and resend this patch?  It would be nice to have 5.9 support some
real hardware already.  (I'm going to resend my patchset for ufs-qcom too.)

- Eric