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Wed, 13 Oct 2021 03:47:23 -0400 (EDT) Date: Wed, 13 Oct 2021 09:47:22 +0200 From: Maxime Ripard To: Alexander Stein Cc: David Airlie , Daniel Vetter , Rob Herring , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, Sam Ravnborg Subject: Re: [PATCH v2 3/4] dt-bindings: drm/bridge: ti-sn65dsi83: Add vcc supply bindings Message-ID: <20211013074722.7y7ug3eri4euknza@gilmour> References: <20211012064843.298104-1-alexander.stein@ew.tq-group.com> <20211012064843.298104-4-alexander.stein@ew.tq-group.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="to54f4mrku7omawu" Content-Disposition: inline In-Reply-To: <20211012064843.298104-4-alexander.stein@ew.tq-group.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org --to54f4mrku7omawu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Tue, Oct 12, 2021 at 08:48:42AM +0200, Alexander Stein wrote: > Add a VCC regulator which needs to be enabled before the EN pin is > released. >=20 > Reviewed-by: Sam Ravnborg > Signed-off-by: Alexander Stein > --- > .../devicetree/bindings/display/bridge/ti,sn65dsi83.yaml | 5 +++++ > 1 file changed, 5 insertions(+) >=20 > diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi8= 3.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml > index a5779bf17849..49ace6f312d5 100644 > --- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml > +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml > @@ -32,6 +32,9 @@ properties: > maxItems: 1 > description: GPIO specifier for bridge_en pin (active high). > =20 > + vcc-supply: > + description: A 1.8V power supply (see regulator/regulator.yaml). > + > ports: > $ref: /schemas/graph.yaml#/properties/ports > =20 > @@ -93,6 +96,7 @@ properties: > required: > - compatible > - reg > + - vcc-supply This isn't a backward-compatible change. All the previous users of that binding will now require a vcc-supply property even though it was working fine for them before. You handle that nicely in the code, but you can't make that new property required. Maxime --to54f4mrku7omawu Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCYWaPCgAKCRDj7w1vZxhR xURoAQDm8IvPUi5vzyUHpQ1t/FoKSZIKEtor9+FYGCY+QX5naQEAlTcI9cbK61fo 8MqjindSabWT6jCKa/uGOXOtF3LSNwY= =6P+T -----END PGP SIGNATURE----- --to54f4mrku7omawu--