| Message ID | 20220306111125.116455-2-krzysztof.kozlowski@canonical.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dt-bindings: ufs: add common platform bindings + fixes | expand |
Hi Krzysztof >-----Original Message----- >From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@canonical.com] >Sent: Sunday, March 6, 2022 4:41 PM >To: Alim Akhtar <alim.akhtar@samsung.com>; Avri Altman ><avri.altman@wdc.com>; Rob Herring <robh+dt@kernel.org>; Krzysztof >Kozlowski <krzysztof.kozlowski@canonical.com>; Andy Gross ><agross@kernel.org>; Bjorn Andersson <bjorn.andersson@linaro.org>; Wei >Xu <xuwei5@hisilicon.com>; Matthias Brugger <matthias.bgg@gmail.com>; >Jan Kotas <jank@cadence.com>; Li Wei <liwei213@huawei.com>; Stanley Chu ><stanley.chu@mediatek.com>; Vignesh Raghavendra <vigneshr@ti.com>; >linux-scsi@vger.kernel.org; devicetree@vger.kernel.org; linux- >kernel@vger.kernel.org; linux-arm-msm@vger.kernel.org; linux-arm- >kernel@lists.infradead.org; linux-samsung-soc@vger.kernel.org; linux- >mediatek@lists.infradead.org >Subject: [PATCH v3 01/12] dt-bindings: ufs: add common platform bindings > >Add bindings for common parts (platform) of Universal Flash Storage >(UFS) Host Controllers in dtschema format. > >Include also the bindings directory in the UFS maintainers entry. > >Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> >--- Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> > .../devicetree/bindings/ufs/ufs-common.yaml | 82 +++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 83 insertions(+) > create mode 100644 Documentation/devicetree/bindings/ufs/ufs- >common.yaml > >diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml >b/Documentation/devicetree/bindings/ufs/ufs-common.yaml >new file mode 100644 >index 000000000000..47a4e9e1a775 >--- /dev/null >+++ b/Documentation/devicetree/bindings/ufs/ufs-common.yaml >@@ -0,0 +1,82 @@ >+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2 >+--- >+$id: >+https://protect2.fireeye.com/v1/url?k=1c5f8d40-43c4b442-1c5e060f-0cc47a >+31381a-044442c4c340dc87&q=1&e=f6b89910-3420-4a58-a18d- >4ca02e079c2b&u=ht >+tp%3A%2F%2Fdevicetree.org%2Fschemas%2Fufs%2Fufs-common.yaml%23 >+$schema: >+https://protect2.fireeye.com/v1/url?k=bc24c591-e3bffc93-bc254ede-0cc47a >+31381a-e9aaf10c3795a198&q=1&e=f6b89910-3420-4a58-a18d- >4ca02e079c2b&u=ht >+tp%3A%2F%2Fdevicetree.org%2Fmeta-schemas%2Fcore.yaml%23 >+ >+title: Common properties for Universal Flash Storage (UFS) Host >+Controllers >+ >+maintainers: >+ - Alim Akhtar <alim.akhtar@samsung.com> >+ - Avri Altman <avri.altman@wdc.com> >+ >+properties: >+ clocks: true >+ >+ clock-names: true >+ >+ freq-table-hz: >+ items: >+ items: >+ - description: Minimum frequency for given clock in Hz >+ - description: Maximum frequency for given clock in Hz >+ description: | >+ Array of <min max> operating frequencies in Hz stored in the same order >+ as the clocks property. If this property is not 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. >+ >+ interrupts: >+ maxItems: 1 >+ >+ lanes-per-direction: >+ $ref: /schemas/types.yaml#/definitions/uint32 >+ enum: [1, 2] >+ default: 2 >+ description: >+ Number of lanes available per direction. Note that it is assume same >+ number of lanes is used both directions at once. >+ >+ vdd-hba-supply: >+ description: >+ Phandle to UFS host controller supply regulator node. >+ >+ vcc-supply: >+ description: >+ Phandle to VCC supply regulator node. >+ >+ vccq-supply: >+ description: >+ Phandle to VCCQ supply regulator node. >+ >+ vccq2-supply: >+ description: >+ Phandle to VCCQ2 supply regulator node. >+ >+ vcc-supply-1p8: >+ type: boolean >+ description: >+ For embedded UFS devices, valid VCC range is 1.7-1.95V or 2.7-3.6V. This >+ boolean property when set, specifies to use low voltage range of >+ 1.7-1.95V. Note for external UFS cards this property is invalid and valid >+ VCC range is always 2.7-3.6V. >+ >+ vcc-max-microamp: >+ description: >+ Specifies max. load that can be drawn from VCC supply. >+ >+ vccq-max-microamp: >+ description: >+ Specifies max. load that can be drawn from VCCQ supply. >+ >+ vccq2-max-microamp: >+ description: >+ Specifies max. load that can be drawn from VCCQ2 supply. >+ >+dependencies: >+ freq-table-hz: [ 'clocks' ] >+ >+required: >+ - interrupts >+ >+additionalProperties: true >diff --git a/MAINTAINERS b/MAINTAINERS >index d7ea92ce1b1d..ef16268b6ca6 100644 >--- a/MAINTAINERS >+++ b/MAINTAINERS >@@ -20100,6 +20100,7 @@ R: Alim Akhtar <alim.akhtar@samsung.com> > R: Avri Altman <avri.altman@wdc.com> > L: linux-scsi@vger.kernel.org > S: Supported >+F: Documentation/devicetree/bindings/ufs/ > F: Documentation/scsi/ufs.rst > F: drivers/scsi/ufs/ > >-- >2.32.0
diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml b/Documentation/devicetree/bindings/ufs/ufs-common.yaml new file mode 100644 index 000000000000..47a4e9e1a775 --- /dev/null +++ b/Documentation/devicetree/bindings/ufs/ufs-common.yaml @@ -0,0 +1,82 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/ufs/ufs-common.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Common properties for Universal Flash Storage (UFS) Host Controllers + +maintainers: + - Alim Akhtar <alim.akhtar@samsung.com> + - Avri Altman <avri.altman@wdc.com> + +properties: + clocks: true + + clock-names: true + + freq-table-hz: + items: + items: + - description: Minimum frequency for given clock in Hz + - description: Maximum frequency for given clock in Hz + description: | + Array of <min max> operating frequencies in Hz stored in the same order + as the clocks property. If this property is not 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. + + interrupts: + maxItems: 1 + + lanes-per-direction: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2] + default: 2 + description: + Number of lanes available per direction. Note that it is assume same + number of lanes is used both directions at once. + + vdd-hba-supply: + description: + Phandle to UFS host controller supply regulator node. + + vcc-supply: + description: + Phandle to VCC supply regulator node. + + vccq-supply: + description: + Phandle to VCCQ supply regulator node. + + vccq2-supply: + description: + Phandle to VCCQ2 supply regulator node. + + vcc-supply-1p8: + type: boolean + description: + For embedded UFS devices, valid VCC range is 1.7-1.95V or 2.7-3.6V. This + boolean property when set, specifies to use low voltage range of + 1.7-1.95V. Note for external UFS cards this property is invalid and valid + VCC range is always 2.7-3.6V. + + vcc-max-microamp: + description: + Specifies max. load that can be drawn from VCC supply. + + vccq-max-microamp: + description: + Specifies max. load that can be drawn from VCCQ supply. + + vccq2-max-microamp: + description: + Specifies max. load that can be drawn from VCCQ2 supply. + +dependencies: + freq-table-hz: [ 'clocks' ] + +required: + - interrupts + +additionalProperties: true diff --git a/MAINTAINERS b/MAINTAINERS index d7ea92ce1b1d..ef16268b6ca6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20100,6 +20100,7 @@ R: Alim Akhtar <alim.akhtar@samsung.com> R: Avri Altman <avri.altman@wdc.com> L: linux-scsi@vger.kernel.org S: Supported +F: Documentation/devicetree/bindings/ufs/ F: Documentation/scsi/ufs.rst F: drivers/scsi/ufs/
Add bindings for common parts (platform) of Universal Flash Storage (UFS) Host Controllers in dtschema format. Include also the bindings directory in the UFS maintainers entry. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> --- .../devicetree/bindings/ufs/ufs-common.yaml | 82 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 83 insertions(+) create mode 100644 Documentation/devicetree/bindings/ufs/ufs-common.yaml