Re: [PATCH 6/6] scsi: ufs: exynos: put ufs device in reset on .exit() and .suspend()

To: Peter Griffin <peter.griffin@xxxxxxxxxx>, alim.akhtar@xxxxxxxxxxx, James.Bottomley@xxxxxxxxxxxxxxxxxxxxx, martin.petersen@xxxxxxxxxx, krzk@xxxxxxxxxx
Subject: Re: [PATCH 6/6] scsi: ufs: exynos: put ufs device in reset on .exit() and .suspend()
From: Bart Van Assche <bvanassche@xxxxxxx>
Date: Fri, 28 Feb 2025 11:21:12 -0800
Cc: linux-scsi@xxxxxxxxxxxxxxx, linux-samsung-soc@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, willmcvicker@xxxxxxxxxx, tudor.ambarus@xxxxxxxxxx, andre.draszik@xxxxxxxxxx, ebiggers@xxxxxxxxxx, kernel-team@xxxxxxxxxxx
In-reply-to: <20250226220414.343659-7-peter.griffin@linaro.org>
User-agent: Mozilla Thunderbird

On 2/26/25 2:04 PM, Peter Griffin wrote:

GPIO_OUT[0] is connected to the reset pin of embedded UFS device.
Before powering off the phy assert the reset signal.

Does the above apply to the GS implementation only or does it apply to
all SoC's with an Exynos UFS host controller?

Thanks,

Bart.

References:
- [PATCH 0/6] ufs-exynos fixes for gs101
  - From: Peter Griffin
- [PATCH 6/6] scsi: ufs: exynos: put ufs device in reset on .exit() and .suspend()
  - From: Peter Griffin