scsi: ufshcd: Allow specifying an Auto-Hibernate Timer value of zero

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Setting the Auto-Hibernate Timer to zero is a valid setting which indicates
the Auto-Hibernate feature being disabled. Correctly support this setting.

In addition, when the timer value is queried from sysfs, read from the host
controller's register and return that value instead of using the RAM value.

Link: https://lore.kernel.org/r/b141cfcd7998b8933635828b56fbb64f8ad4d175.1598661071.git.nguyenb@codeaurora.org
Acked-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bao D. Nguyen <nguyenb@codeaurora.org>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Bao D. Nguyen 2020-08-28 18:05:13 -07:00 • committed by Martin K. Petersen

parent 8c65723566

commit 499f7a9660

2 changed files with 9 additions and 2 deletions

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9

drivers/scsi/ufs/ufs-sysfs.c

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2

drivers/scsi/ufs/ufshcd.c

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