linux-kernel - Re: [PATCH v2 1/2] dt-bindings: pinctrl: document the Eliza Top Level Mode Multiplexer

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Message-ID: <yhnnlbvcqgtaseoiarii4rfsmiem56hxsiuibf3kyux5ftebgy@dhkhij3qq7sk>
Date: Thu, 29 Jan 2026 12:59:23 +0200
From: Abel Vesa <abel.vesa@....qualcomm.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Linus Walleij <linusw@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: pinctrl: document the Eliza Top
 Level Mode Multiplexer

On 26-01-29 12:54:49, Abel Vesa wrote:
> On 26-01-28 12:38:32, Krzysztof Kozlowski wrote:
> > On Tue, Jan 27, 2026 at 05:47:36PM +0200, Abel Vesa wrote:
> > > Document the Top Level Mode Multiplexer on the Eliza Platform.
> > > 
> > > Signed-off-by: Abel Vesa <abel.vesa@....qualcomm.com>
> > > ---
> > >  .../bindings/pinctrl/qcom,eliza-tlmm.yaml          | 138 +++++++++++++++++++++
> > >  1 file changed, 138 insertions(+)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,eliza-tlmm.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,eliza-tlmm.yaml
> > > new file mode 100644
> > > index 000000000000..d8b6591caf57
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/pinctrl/qcom,eliza-tlmm.yaml
> > > @@ -0,0 +1,138 @@
> > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/pinctrl/qcom,eliza-tlmm.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Qualcomm Technologies, Inc. Eliza TLMM block
> > > +
> > > +maintainers:
> > > +  - Abel Vesa <abel.vesa@....qualcomm.com>
> > > +
> > > +description:
> > > +  Top Level Mode Multiplexer pin controller in Qualcomm Eliza SoC.
> > > +
> > > +allOf:
> > > +  - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
> > > +
> > > +properties:
> > > +  compatible:
> > > +    const: qcom,eliza-tlmm
> > > +
> > > +  reg:
> > > +    maxItems: 1
> > > +
> > > +  interrupts:
> > > +    maxItems: 1
> > > +
> > > +  gpio-reserved-ranges:
> > > +    minItems: 1
> > > +    maxItems: 84
> > 
> > 93
> > 
> > > +
> > > +  gpio-line-names:
> > > +    maxItems: 185
> > 
> > 186, your first GPIO is 0 and last is 185.
> 
> Wait, are all of these wrong then?
> 
> $ grep -r "gpio-line-names" Documentation/devicetree/bindings/pinctrl/qcom,sm8[3-7]50* -A 3 |grep maxItems:
> Documentation/devicetree/bindings/pinctrl/qcom,sm8350-tlmm.yaml-    maxItems: 203
> Documentation/devicetree/bindings/pinctrl/qcom,sm8450-tlmm.yaml-    maxItems: 210
> Documentation/devicetree/bindings/pinctrl/qcom,sm8550-tlmm.yaml-    maxItems: 210
> Documentation/devicetree/bindings/pinctrl/qcom,sm8650-tlmm.yaml-    maxItems: 210
> Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml-    maxItems: 215
> $ grep -r "UFS_RESET\"" drivers/pinctrl/qcom/pinctrl-sm8[3-7]50.c
> drivers/pinctrl/qcom/pinctrl-sm8350.c:  PINCTRL_PIN(203, "UFS_RESET"),
> drivers/pinctrl/qcom/pinctrl-sm8450.c:  PINCTRL_PIN(210, "UFS_RESET"),
> drivers/pinctrl/qcom/pinctrl-sm8550.c:  PINCTRL_PIN(210, "UFS_RESET"),
> drivers/pinctrl/qcom/pinctrl-sm8650.c:  PINCTRL_PIN(210, "UFS_RESET"),
> drivers/pinctrl/qcom/pinctrl-sm8750.c:  PINCTRL_PIN(215, "UFS_RESET"),

185 is actually correct, because ufs_reset doesn't count.