From: Amelie Delaunay <amelie.delaunay@foss.st.com>
To: Kishon Vijay Abraham I <kishon@ti.com>,
Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
Amelie Delaunay <amelie.delaunay@foss.st.com>
Subject: [RESEND PATCH v3 1/2] dt-bindings: phy: phy-stm32-usbphyc: add #clock-cells property
Date: Thu, 4 Mar 2021 17:04:39 +0100 [thread overview]
Message-ID: <20210304160440.27612-2-amelie.delaunay@foss.st.com> (raw)
In-Reply-To: <20210304160440.27612-1-amelie.delaunay@foss.st.com>
usbphyc provides a unique clock called ck_usbo_48m.
STM32 USB OTG needs a 48Mhz clock (utmifs_clk48) for Full-Speed operation.
ck_usbo_48m is a possible parent clock for USB OTG 48Mhz clock.
ck_usbo_48m is available as soon as the PLL is enabled.
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Acked-by: Rob Herring <robh@kernel.org>
---
Changes in v3:
- add Rob's Acked-by
- remove #clock-cells from required properties
---
Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
index 46df6786727a..018cc1246ee1 100644
--- a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
@@ -51,6 +51,10 @@ properties:
vdda1v8-supply:
description: regulator providing 1V8 power supply to the PLL block
+ '#clock-cells':
+ description: number of clock cells for ck_usbo_48m consumer
+ const: 0
+
#Required child nodes:
patternProperties:
@@ -120,6 +124,7 @@ examples:
vdda1v8-supply = <®18>;
#address-cells = <1>;
#size-cells = <0>;
+ #clock-cells = <0>;
usbphyc_port0: usb-phy@0 {
reg = <0>;
--
2.17.1
next prev parent reply other threads:[~2021-03-04 16:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-04 16:04 [RESEND PATCH v3 0/2] STM32 USBPHYC ck_usbo_48m clock provider Amelie Delaunay
2021-03-04 16:04 ` Amelie Delaunay [this message]
2021-03-04 16:04 ` [RESEND PATCH v3 2/2] phy: stm32: register usbphyc as clock provider of ck_usbo_48m clock Amelie Delaunay
2021-03-15 9:57 ` [RESEND PATCH v3 0/2] STM32 USBPHYC ck_usbo_48m clock provider Vinod Koul
2021-03-09 8:26 Amelie Delaunay
2021-03-09 8:26 ` [RESEND PATCH v3 1/2] dt-bindings: phy: phy-stm32-usbphyc: add #clock-cells property Amelie Delaunay
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