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Date: Mon, 5 Feb 2024 20:25:08 -0600
From: Adam Ford <aford173@...il.com>
To: Alexander Stein <alexander.stein@...tq-group.com>
Cc: linux-arm-kernel@...ts.infradead.org, marex@...x.de,
frieder.schrempf@...tron.de, Lucas Stach <l.stach@...gutronix.de>,
Andrzej Hajda <andrzej.hajda@...el.com>, Neil Armstrong <neil.armstrong@...aro.org>,
Robert Foss <rfoss@...nel.org>, Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>,
David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>, Philipp Zabel <p.zabel@...gutronix.de>,
Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Liu Ying <victor.liu@....com>,
Ulf Hansson <ulf.hansson@...aro.org>, dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-phy@...ts.infradead.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH V8 05/12] arm64: dts: imx8mp: add HDMI power-domains
On Mon, Feb 5, 2024 at 1:26 AM Alexander Stein
<alexander.stein@...tq-group.com> wrote:
>
> Hi Adam,
>
> thanks for working on this.
>
> Am Samstag, 3. Februar 2024, 17:52:45 CET schrieb Adam Ford:
> > From: Lucas Stach <l.stach@...gutronix.de>
> >
> > This adds the PGC and HDMI blk-ctrl nodes providing power control for
> > HDMI subsystem peripherals.
> >
> > Signed-off-by: Adam Ford <aford173@...il.com>
> > Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
> > ---
> > V2: Add missing power-domains hdcp and hrv
> > ---
> > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 38 +++++++++++++++++++++++
> > 1 file changed, 38 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index
> > 76c73daf546b..5c54073de615 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > @@ -836,6 +836,23 @@ pgc_mediamix: power-domain@10 {
> > <&clk
> IMX8MP_CLK_MEDIA_APB_ROOT>;
> > };
> >
> > + pgc_hdmimix: power-
> domains@14 {
>
Alexander,
Thanks for the feedback.
> As per Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml the node
> should be called power-domain@.
>
> > + #power-domain-
> cells = <0>;
> > + reg =
> <IMX8MP_POWER_DOMAIN_HDMIMIX>;
> > + clocks = <&clk
> IMX8MP_CLK_HDMI_ROOT>,
> > + <&clk
> IMX8MP_CLK_HDMI_APB>;
> > + assigned-clocks =
> <&clk IMX8MP_CLK_HDMI_AXI>,
> > +
> <&clk IMX8MP_CLK_HDMI_APB>;
> > + assigned-clock-
> parents = <&clk IMX8MP_SYS_PLL2_500M>,
> > +
> <&clk IMX8MP_SYS_PLL1_133M>;
> > + assigned-clock-
> rates = <500000000>, <133000000>;
> > + };
> > +
> > + pgc_hdmi_phy: power-
> domains@15 {
>
> As per Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml the node
> should be called power-domain@.
Whoops. I totally missed these when I applied them. I'll have them
fixed on the next spin.
>
> > + #power-domain-
> cells = <0>;
> > + reg =
> <IMX8MP_POWER_DOMAIN_HDMI_PHY>;
> > + };
> > +
> > pgc_mipi_phy2: power-
> domain@16 {
> > #power-domain-
> cells = <0>;
> > reg =
> <IMX8MP_POWER_DOMAIN_MIPI_PHY2>;
> > @@ -1361,6 +1378,27 @@ eqos: ethernet@...f0000 {
> > intf_mode = <&gpr 0x4>;
> > status = "disabled";
> > };
> > +
> > + hdmi_blk_ctrl: blk-ctrl@...c0000 {
> > + compatible = "fsl,imx8mp-hdmi-blk-
> ctrl", "syscon";
> > + reg = <0x32fc0000 0x23c>;
> > + clocks = <&clk IMX8MP_CLK_HDMI_APB>,
> > + <&clk
> IMX8MP_CLK_HDMI_ROOT>,
> > + <&clk
> IMX8MP_CLK_HDMI_REF_266M>,
> > + <&clk IMX8MP_CLK_HDMI_24M>,
> > + <&clk
> IMX8MP_CLK_HDMI_FDCC_TST>;
> > + clock-names = "apb", "axi",
> "ref_266m", "ref_24m", "fdcc";
> > + power-domains = <&pgc_hdmimix>,
> <&pgc_hdmimix>,
> > + <&pgc_hdmimix>,
> <&pgc_hdmimix>,
> > + <&pgc_hdmimix>,
> <&pgc_hdmimix>,
> > + <&pgc_hdmimix>,
> <&pgc_hdmi_phy>,
> > + <&pgc_hdmimix>,
> <&pgc_hdmimix>;
> > + power-domain-names = "bus",
> "irqsteer", "lcdif",
> > + "pai", "pvi",
> "trng",
> > + "hdmi-tx",
> "hdmi-tx-phy",
> > + "hdcp",
> "hrv";
> > + #power-domain-cells = <1>;
> > + };
> > };
> >
>
> According to RM this block is part of AIPS4, so it should be below
> hsio_blk_ctrl.
This is how it was when I got it, but I should have caught it. Thanks
for that. It looks like the subsequent HDMI, IRQ_steerting, LCDIF and
PHY ones are also out of place.
adam
>
> Best regards,
> Alexander
>
> > aips5: bus@...00000 {
>
>
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