From: Stanley Chu <stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
To: linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
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martin.petersen-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org,
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Cc: chun-hung.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
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sayalil-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
Stanley Chu <stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
beanhuo-AL4WhLSQfzjQT0dZR+AlfA@public.gmane.org
Subject: [PATCH 2/2] scsi: dt-bindings: ufs: Add VCC capability on MediaTek UFS driver
Date: Fri, 29 Mar 2019 23:32:48 +0800 [thread overview]
Message-ID: <1553873568-9177-3-git-send-email-stanley.chu@mediatek.com> (raw)
In-Reply-To: <1553873568-9177-1-git-send-email-stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
Add VCC supply for ufs-mediatek driver to provide power-saving
operation during low-power modes, for example, VCC can be
turned-off during system suspend and turned-on after
system is resumed.
Signed-off-by: Stanley Chu <stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
Documentation/devicetree/bindings/ufs/ufs-mediatek.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt b/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt
index e25c007b95d7..72aab8547308 100644
--- a/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt
+++ b/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt
@@ -21,6 +21,7 @@ Required properties for UFS nodes:
defined or a value in the array is "0" then it is assumed
that the frequency is set by the parent clock or a
fixed rate clock source.
+- vcc-supply : phandle to VCC supply regulator node.
Example:
@@ -37,4 +38,6 @@ Example:
clocks = <&infracfg_ao INFRACFG_AO_UFS_CG>;
clock-names = "ufs";
freq-table-hz = <0 0>;
+
+ vcc-supply = <&mt_pmic_vemc_ldo_reg>;
};
--
2.18.0
next prev parent reply other threads:[~2019-03-29 15:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-29 15:32 [PATCH 0/2] scsi: dt-bindings: ufs: Remove "<name>-fixed-regulator" property and add VCC capability on MediaTek UFS driver Stanley Chu
[not found] ` <1553873568-9177-1-git-send-email-stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2019-03-29 15:32 ` [PATCH 1/2] scsi: dt-bindings: ufs: Remove custom property "<name>-fixed-regulator" Stanley Chu
2019-03-29 15:32 ` Stanley Chu [this message]
2019-04-04 3:26 ` [PATCH 0/2] scsi: dt-bindings: ufs: Remove "<name>-fixed-regulator" property and add VCC capability on MediaTek UFS driver Martin K. Petersen
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