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dt-bindings: clock: Add YAML schemas for LPASS clocks on SC7280

PATCH In review Taniya Das 3 participants 6 messages Aug 31, 2021 – Oct 6, 2021

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Taniya Das

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PATCH 1/2 dt-bindings: clock: Add YAML schemas for LPASS clocks on SC7280

The LPASS(Low Power Audio Subsystem) clock provider have a bunch of generic properties that are needed in a device tree. Add the LPASS clock IDs for LPASS PIL client to request for the clocks.

---
 .../bindings/clock/qcom,sc7280-lpasscc.yaml        | 69 ++++++++++++++++++++++
 include/dt-bindings/clock/qcom,lpass-sc7280.h      | 16 +++++
 2 files changed, 85 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
 create mode 100644 include/dt-bindings/clock/qcom,lpass-sc7280.h
Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml new file +69 -0
new file mode 100644
index 0000000..7b62763
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sc7280-lpasscc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm LPASS Core Clock Controller Binding for SC7280
+
+maintainers:
+  - Taniya Das <[email protected]>
+
+description: |
+  Qualcomm LPASS core clock control module which supports the clocks and
+  power domains on SC7280.
+
+  See also:
+  - dt-bindings/clock/qcom,lpass-sc7280.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sc7280-lpasscc
+
+  clocks:
+    items:
+      - description: gcc_cfg_noc_lpass_clk from GCC
+
+  clock-names:
+    items:
+      - const: iface
+
+  '#clock-cells':
+    const: 1
+
+  reg:
+    minItems: 3
+    items:
+      - description: LPASS qdsp6ss register
+      - description: LPASS top-cc register
+      - description: LPASS cc register
+
+  reg-names:
+    items:
+      - const: qdsp6ss
+      - const: top_cc
+      - const: cc
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sc7280.h>
+    #include <dt-bindings/clock/qcom,lpass-sc7280.h>
+    clock-controller@3000000 {
+      compatible = "qcom,sc7280-lpasscc";
+      reg = <0x03000000 0x40>, <0x03c04000 0x4>, <0x03389000 0x24>;
+      reg-names = "qdsp6ss", "top_cc", "cc";
+      clocks = <&gcc GCC_CFG_NOC_LPASS_CLK>;
+      clock-names = "iface";
+      #clock-cells = <1>;
+    };
+...
include/dt-bindings/clock/qcom,lpass-sc7280.h new file +16 -0
new file mode 100644
index 0000000..a259463
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_QCOM_LPASS_SC7280_H
+#define _DT_BINDINGS_CLK_QCOM_LPASS_SC7280_H
+
+#define LPASS_Q6SS_AHBM_CLK				0
+#define LPASS_Q6SS_AHBS_CLK				1
+#define LPASS_TOP_CC_LPI_Q6_AXIM_HS_CLK			2
+#define LPASS_QDSP6SS_XO_CLK				3
+#define LPASS_QDSP6SS_SLEEP_CLK				4
+#define LPASS_QDSP6SS_CORE_CLK				5
+
+#endif
Signature · 2 lines
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the  Linux Foundation.
author
#1 lore raw

PATCH 2/2 clk: qcom: Add lpass clock controller driver for SC7280

Add support for the lpass clock controller found on SC7280 based devices. This would allow lpass peripheral loader drivers to control the clocks to bring the subsystem out of reset.

---
 drivers/clk/qcom/Kconfig          |   8 ++
 drivers/clk/qcom/Makefile         |   1 +
 drivers/clk/qcom/lpasscc-sc7280.c | 216 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 225 insertions(+)
 create mode 100644 drivers/clk/qcom/lpasscc-sc7280.c
drivers/clk/qcom/Kconfig +8 -0
index 0a55967..cd7a5a1 100644
@@ -394,6 +394,14 @@ config SC_LPASS_CORECC_7180
 	  Say Y if you want to use LPASS clocks and power domains of the LPASS
 	  core clock controller.
 
+config SC_LPASSCC_7280
+	tristate "SC7280 Low Power Audio Subsystem (LPAAS) Clock Controller"
+	select SC_GCC_7280
+	help
+	  Support for the LPASS clock controller on SC7280 devices.
+	  Say Y if you want to use the LPASS branch clocks of the LPASS clock
+	  controller to reset the LPASS subsystem.
+
 config SC_GPUCC_7180
 	tristate "SC7180 Graphics Clock Controller"
 	select SC_GCC_7180
drivers/clk/qcom/Makefile +1 -0
index 9825ef8..1b33f49 100644
@@ -66,6 +66,7 @@ obj-$(CONFIG_SC_GCC_8180X) += gcc-sc8180x.o
 obj-$(CONFIG_SC_GPUCC_7180) += gpucc-sc7180.o
 obj-$(CONFIG_SC_GPUCC_7280) += gpucc-sc7280.o
 obj-$(CONFIG_SC_LPASS_CORECC_7180) += lpasscorecc-sc7180.o
+obj-$(CONFIG_SC_LPASSCC_7280) += lpasscc-sc7280.o
 obj-$(CONFIG_SC_MSS_7180) += mss-sc7180.o
 obj-$(CONFIG_SC_VIDEOCC_7180) += videocc-sc7180.o
 obj-$(CONFIG_SC_VIDEOCC_7280) += videocc-sc7280.o
drivers/clk/qcom/lpasscc-sc7280.c new file +216 -0

216 lines not on this page · raw message

Signature · 2 lines
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the  Linux Foundation.
maintainer
#2 lore raw

Re: [PATCH v1 2/2] clk: qcom: Add lpass clock controller driver for SC7280

Quoting Taniya Das (2021-08-31 03:36:42)

Quoted 6 lines
drivers/clk/qcom/Kconfig +0 -0
index 0a55967..cd7a5a1 100644
@@ -394,6 +394,14 @@ config SC_LPASS_CORECC_7180
          Say Y if you want to use LPASS clocks and power domains of the LPASS

drivers/clk/qcom/Kconfig config SC_LPASS_CORECC_7180 · line 404

Quoted 10 lines
drivers/clk/qcom/Kconfig +8 -0
          core clock controller.
 
+config SC_LPASSCC_7280
+       tristate "SC7280 Low Power Audio Subsystem (LPAAS) Clock Controller"
+       select SC_GCC_7280
+       help
+         Support for the LPASS clock controller on SC7280 devices.
+         Say Y if you want to use the LPASS branch clocks of the LPASS clock
+         controller to reset the LPASS subsystem.
+

Can you send another patch to move SC_LPASS_CORECC_7180 under SC_GPUCC_7180? This file should be sorted on Kconfig symbol alphabetically.

drivers/clk/qcom/Makefile obj-$(CONFIG_SC_GCC_8180X) += gcc-sc8180x.o · line 69

Quoted 12 lines
drivers/clk/qcom/Kconfig +0 -0
 config SC_GPUCC_7180
        tristate "SC7180 Graphics Clock Controller"
        select SC_GCC_7180
drivers/clk/qcom/Makefile +1 -0
index 9825ef8..1b33f49 100644
@@ -66,6 +66,7 @@ obj-$(CONFIG_SC_GCC_8180X) += gcc-sc8180x.o
 obj-$(CONFIG_SC_GPUCC_7180) += gpucc-sc7180.o
 obj-$(CONFIG_SC_GPUCC_7280) += gpucc-sc7280.o
 obj-$(CONFIG_SC_LPASS_CORECC_7180) += lpasscorecc-sc7180.o
+obj-$(CONFIG_SC_LPASSCC_7280) += lpasscc-sc7280.o

This one got it right, almost. LPASSCC comes before LPASS_CORECC though.

Quoted 3 lines
drivers/clk/qcom/Makefile +0 -0
 obj-$(CONFIG_SC_MSS_7180) += mss-sc7180.o
 obj-$(CONFIG_SC_VIDEOCC_7180) += videocc-sc7180.o
 obj-$(CONFIG_SC_VIDEOCC_7280) += videocc-sc7280.o
author
#3 lore raw

Re: [PATCH v1 2/2] clk: qcom: Add lpass clock controller driver for SC7280

Hello Stephen,

Thanks for your review.

Quoted 9 lines · Stephen Boyd

Quoting Taniya Das (2021-08-31 03:36:42)

Quoted 8 lines
drivers/clk/qcom/Kconfig +0 -0
index 0a55967..cd7a5a1 100644
@@ -394,6 +394,14 @@ config SC_LPASS_CORECC_7180
           Say Y if you want to use LPASS clocks and power domains of the LPASS
           core clock controller.
 
Quoted 13 lines

drivers/clk/qcom/Kconfig config SC_LPASS_CORECC_7180 · line 404

Quoted 8 lines
drivers/clk/qcom/Kconfig +8 -0
+config SC_LPASSCC_7280
+       tristate "SC7280 Low Power Audio Subsystem (LPAAS) Clock Controller"
+       select SC_GCC_7280
+       help
+         Support for the LPASS clock controller on SC7280 devices.
+         Say Y if you want to use the LPASS branch clocks of the LPASS clock
+         controller to reset the LPASS subsystem.
+

Can you send another patch to move SC_LPASS_CORECC_7180 under SC_GPUCC_7180? This file should be sorted on Kconfig symbol alphabetically.

Yes, will send a patch to fix.

Quoted 6 lines
Quoted 6 lines
drivers/clk/qcom/Kconfig +0 -0
  config SC_GPUCC_7180
         tristate "SC7180 Graphics Clock Controller"
         select SC_GCC_7180
drivers/clk/qcom/Makefile +0 -1
index 9825ef8..1b33f49 100644
--- a/drivers/clk/qcom/Makefile
Quoted 9 lines

drivers/clk/qcom/Makefile obj-$(CONFIG_SC_GCC_8180X) += gcc-sc8180x.o · line 69

Quoted 6 lines

+++ b/drivers/clk/qcom/Makefile

drivers/clk/qcom/Makefile +1 -0
@@ -66,6 +66,7 @@ obj-$(CONFIG_SC_GCC_8180X) += gcc-sc8180x.o
  obj-$(CONFIG_SC_GPUCC_7180) += gpucc-sc7180.o
  obj-$(CONFIG_SC_GPUCC_7280) += gpucc-sc7280.o
  obj-$(CONFIG_SC_LPASS_CORECC_7180) += lpasscorecc-sc7180.o
+obj-$(CONFIG_SC_LPASSCC_7280) += lpasscc-sc7280.o

This one got it right, almost. LPASSCC comes before LPASS_CORECC though.

Next patch will fix.

Quoted 3 lines
Quoted 3 lines
drivers/clk/qcom/Makefile +0 -0
  obj-$(CONFIG_SC_MSS_7180) += mss-sc7180.o
  obj-$(CONFIG_SC_VIDEOCC_7180) += videocc-sc7180.o
  obj-$(CONFIG_SC_VIDEOCC_7280) += videocc-sc7280.o
Signature · 4 lines
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation.

--
maintainer
#4 lore raw
In reply to Taniya Das
Quoted 44 lines · Taniya Das

The LPASS(Low Power Audio Subsystem) clock provider have a bunch of generic properties that are needed in a device tree. Add the LPASS clock IDs for LPASS PIL client to request for the clocks.

---
 .../bindings/clock/qcom,sc7280-lpasscc.yaml        | 69 ++++++++++++++++++++++
 include/dt-bindings/clock/qcom,lpass-sc7280.h      | 16 +++++
 2 files changed, 85 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
 create mode 100644 include/dt-bindings/clock/qcom,lpass-sc7280.h
Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml new file +26 -0
new file mode 100644
index 0000000..7b62763
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sc7280-lpasscc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm LPASS Core Clock Controller Binding for SC7280
+
+maintainers:
+  - Taniya Das <[email protected]>
+
+description: |
+  Qualcomm LPASS core clock control module which supports the clocks and
+  power domains on SC7280.
+
+  See also:
+  - dt-bindings/clock/qcom,lpass-sc7280.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sc7280-lpasscc
+
+  clocks:
+    items:
+      - description: gcc_cfg_noc_lpass_clk from GCC

Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml line 36

Quoted 10 lines
Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml new file +10 -0
+
+  clock-names:
+    items:
+      - const: iface
+
+  '#clock-cells':
+    const: 1
+
+  reg:
+    minItems: 3

Don't need minItems equal to 'items' length.

Quoted 39 lines
Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml new file +33 -0
+    items:
+      - description: LPASS qdsp6ss register
+      - description: LPASS top-cc register
+      - description: LPASS cc register
+
+  reg-names:
+    items:
+      - const: qdsp6ss
+      - const: top_cc
+      - const: cc
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sc7280.h>
+    #include <dt-bindings/clock/qcom,lpass-sc7280.h>
+    clock-controller@3000000 {
+      compatible = "qcom,sc7280-lpasscc";
+      reg = <0x03000000 0x40>, <0x03c04000 0x4>, <0x03389000 0x24>;
+      reg-names = "qdsp6ss", "top_cc", "cc";
+      clocks = <&gcc GCC_CFG_NOC_LPASS_CLK>;
+      clock-names = "iface";
+      #clock-cells = <1>;
+    };
+...
include/dt-bindings/clock/qcom,lpass-sc7280.h new file +0 -0
new file mode 100644
index 0000000..a259463

include/dt-bindings/clock/qcom,lpass-sc7280.h line 1

Quoted 1 line
include/dt-bindings/clock/qcom,lpass-sc7280.h new file +1 -0
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */

Dual license.

Quoted 20 lines
include/dt-bindings/clock/qcom,lpass-sc7280.h new file +15 -0
+/*
+ * Copyright (c) 2021, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_QCOM_LPASS_SC7280_H
+#define _DT_BINDINGS_CLK_QCOM_LPASS_SC7280_H
+
+#define LPASS_Q6SS_AHBM_CLK				0
+#define LPASS_Q6SS_AHBS_CLK				1
+#define LPASS_TOP_CC_LPI_Q6_AXIM_HS_CLK			2
+#define LPASS_QDSP6SS_XO_CLK				3
+#define LPASS_QDSP6SS_SLEEP_CLK				4
+#define LPASS_QDSP6SS_CORE_CLK				5
+
+#endif
Signature · 2 lines
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the  Linux Foundation.
author
#5 lore raw

Hello Rob,

Thanks for your review.

Quoted 49 lines · Rob Herring
Quoted 48 lines · Taniya Das

The LPASS(Low Power Audio Subsystem) clock provider have a bunch of generic properties that are needed in a device tree. Add the LPASS clock IDs for LPASS PIL client to request for the clocks.

---
  .../bindings/clock/qcom,sc7280-lpasscc.yaml        | 69 ++++++++++++++++++++++
  include/dt-bindings/clock/qcom,lpass-sc7280.h      | 16 +++++
  2 files changed, 85 insertions(+)

create mode 100644 Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml create mode 100644 include/dt-bindings/clock/qcom,lpass-sc7280.h

Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml new file +30 -0
new file mode 100644
index 0000000..7b62763
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sc7280-lpasscc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm LPASS Core Clock Controller Binding for SC7280
+
+maintainers:
+  - Taniya Das <[email protected]>
+
+description: |
+  Qualcomm LPASS core clock control module which supports the clocks and
+  power domains on SC7280.
+
+  See also:
+  - dt-bindings/clock/qcom,lpass-sc7280.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sc7280-lpasscc
+
+  clocks:
+    items:
+      - description: gcc_cfg_noc_lpass_clk from GCC
+
+  clock-names:
+    items:
+      - const: iface
Quoted 9 lines

Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml line 36

Quoted 6 lines
Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml new file +6 -0
+
+  '#clock-cells':
+    const: 1
+
+  reg:
+    minItems: 3

Don't need minItems equal to 'items' length.

Next patch will fix this.

Quoted 34 lines
Quoted 34 lines
Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml new file +33 -0
+    items:
+      - description: LPASS qdsp6ss register
+      - description: LPASS top-cc register
+      - description: LPASS cc register
+
+  reg-names:
+    items:
+      - const: qdsp6ss
+      - const: top_cc
+      - const: cc
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sc7280.h>
+    #include <dt-bindings/clock/qcom,lpass-sc7280.h>
+    clock-controller@3000000 {
+      compatible = "qcom,sc7280-lpasscc";
+      reg = <0x03000000 0x40>, <0x03c04000 0x4>, <0x03389000 0x24>;
+      reg-names = "qdsp6ss", "top_cc", "cc";
+      clocks = <&gcc GCC_CFG_NOC_LPASS_CLK>;
+      clock-names = "iface";
+      #clock-cells = <1>;
+    };
+...
include/dt-bindings/clock/qcom,lpass-sc7280.h +0 -0
Quoted 9 lines

include/dt-bindings/clock/qcom,lpass-sc7280.h line 1

Quoted 6 lines

new file mode 100644
index 0000000..a259463

include/dt-bindings/clock/qcom,lpass-sc7280.h new file +1 -0
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */

Dual license.

Yes, my bad, will fix it in the next patch.

Quoted 20 lines
Quoted 20 lines
include/dt-bindings/clock/qcom,lpass-sc7280.h new file +15 -0
+/*
+ * Copyright (c) 2021, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_QCOM_LPASS_SC7280_H
+#define _DT_BINDINGS_CLK_QCOM_LPASS_SC7280_H
+
+#define LPASS_Q6SS_AHBM_CLK				0
+#define LPASS_Q6SS_AHBS_CLK				1
+#define LPASS_TOP_CC_LPI_Q6_AXIM_HS_CLK			2
+#define LPASS_QDSP6SS_XO_CLK				3
+#define LPASS_QDSP6SS_SLEEP_CLK				4
+#define LPASS_QDSP6SS_CORE_CLK				5
+
+#endif
Signature · 2 lines
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the  Linux Foundation.
Signature · 4 lines
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation.

--