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Message-ID: <20231114185613.322570-4-afd@ti.com>
Date: Tue, 14 Nov 2023 12:56:13 -0600
From: Andrew Davis <afd@...com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Nishanth Menon <nm@...com>,
Vignesh Raghavendra <vigneshr@...com>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
Andrew Davis <afd@...com>
Subject: [PATCH 4/4] dt-bindings: dma: Convert ti-edma.txt to YAML
Convert ti-edma.txt to ti/ti,edma3-tpcc.yaml and
ti/ti,edma3-tptc.yaml.
Signed-off-by: Andrew Davis <afd@...com>
---
.../devicetree/bindings/dma/ti-edma.txt | 238 ------------------
.../bindings/dma/ti/ti,edma3-tpcc.yaml | 142 +++++++++++
.../bindings/dma/ti/ti,edma3-tptc.yaml | 63 +++++
MAINTAINERS | 1 -
4 files changed, 205 insertions(+), 239 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/dma/ti-edma.txt
create mode 100644 Documentation/devicetree/bindings/dma/ti/ti,edma3-tpcc.yaml
create mode 100644 Documentation/devicetree/bindings/dma/ti/ti,edma3-tptc.yaml
diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt
deleted file mode 100644
index f719e1612b0a5..0000000000000
--- a/Documentation/devicetree/bindings/dma/ti-edma.txt
+++ /dev/null
@@ -1,238 +0,0 @@
-Texas Instruments eDMA
-
-The eDMA3 consists of two components: Channel controller (CC) and Transfer
-Controller(s) (TC). The CC is the main entry for DMA users since it is
-responsible for the DMA channel handling, while the TCs are responsible to
-execute the actual DMA tansfer.
-
-------------------------------------------------------------------------------
-eDMA3 Channel Controller
-
-Required properties:
---------------------
-- compatible: Should be:
- - "ti,edma3-tpcc" for the channel controller(s) on OMAP,
- AM33xx and AM43xx SoCs.
- - "ti,k2g-edma3-tpcc", "ti,edma3-tpcc" for the
- channel controller(s) on 66AK2G.
-- #dma-cells: Should be set to <2>. The first number is the DMA request
- number and the second is the TC the channel is serviced on.
-- reg: Memory map of eDMA CC
-- reg-names: "edma3_cc"
-- interrupts: Interrupt lines for CCINT, MPERR and CCERRINT.
-- interrupt-names: "edma3_ccint", "edma3_mperr" and "edma3_ccerrint"
-- ti,tptcs: List of TPTCs associated with the eDMA in the following form:
- <&tptc_phandle TC_priority_number>. The highest priority is 0.
-
-SoC-specific Required properties:
---------------------------------
-The following are mandatory properties for OMAP, AM33xx and AM43xx SoCs only:
-- ti,hwmods: Name of the hwmods associated to the eDMA CC.
-
-The following are mandatory properties for 66AK2G SoCs only:
-- power-domains:Should contain a phandle to a PM domain provider node
- and an args specifier containing the device id
- value. This property is as per the binding,
- Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
-
-Optional properties:
--------------------
-- ti,edma-memcpy-channels: List of channels allocated to be used for memcpy, iow
- these channels will be SW triggered channels. See example.
-- ti,edma-reserved-slot-ranges: PaRAM slot ranges which should not be used by
- the driver, they are allocated to be used by for example the
- DSP. See example.
-- dma-channel-mask: Mask of usable channels.
- Single uint32 for EDMA with 32 channels, array of two uint32 for
- EDMA with 64 channels. See example and
- Documentation/devicetree/bindings/dma/dma-common.yaml
-
-
-------------------------------------------------------------------------------
-eDMA3 Transfer Controller
-
-Required properties:
---------------------
-- compatible: Should be:
- - "ti,edma3-tptc" for the transfer controller(s) on OMAP,
- AM33xx and AM43xx SoCs.
- - "ti,k2g-edma3-tptc", "ti,edma3-tptc" for the
- transfer controller(s) on 66AK2G.
-- reg: Memory map of eDMA TC
-- interrupts: Interrupt number for TCerrint.
-
-SoC-specific Required properties:
---------------------------------
-The following are mandatory properties for OMAP, AM33xx and AM43xx SoCs only:
-- ti,hwmods: Name of the hwmods associated to the eDMA TC.
-
-The following are mandatory properties for 66AK2G SoCs only:
-- power-domains:Should contain a phandle to a PM domain provider node
- and an args specifier containing the device id
- value. This property is as per the binding,
- Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
-
-Optional properties:
--------------------
-- interrupt-names: "edma3_tcerrint"
-
-------------------------------------------------------------------------------
-Examples:
-
-1.
-edma: edma@...00000 {
- compatible = "ti,edma3-tpcc";
- ti,hwmods = "tpcc";
- reg = <0x49000000 0x10000>;
- reg-names = "edma3_cc";
- interrupts = <12 13 14>;
- interrupt-names = "edma3_ccint", "edma3_mperr", "edma3_ccerrint";
- dma-requests = <64>;
- #dma-cells = <2>;
-
- ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 7>, <&edma_tptc2 0>;
-
- /* Channel 20 and 21 is allocated for memcpy */
- ti,edma-memcpy-channels = <20 21>;
- /* The following PaRAM slots are reserved: 35-44 and 100-109 */
- ti,edma-reserved-slot-ranges = <35 10>, <100 10>;
- /* The following channels are reserved: 35-44 */
- dma-channel-mask = <0xffffffff /* Channel 0-31 */
- 0xffffe007>; /* Channel 32-63 */
-};
-
-edma_tptc0: tptc@...00000 {
- compatible = "ti,edma3-tptc";
- ti,hwmods = "tptc0";
- reg = <0x49800000 0x100000>;
- interrupts = <112>;
- interrupt-names = "edm3_tcerrint";
-};
-
-edma_tptc1: tptc@...00000 {
- compatible = "ti,edma3-tptc";
- ti,hwmods = "tptc1";
- reg = <0x49900000 0x100000>;
- interrupts = <113>;
- interrupt-names = "edm3_tcerrint";
-};
-
-edma_tptc2: tptc@...00000 {
- compatible = "ti,edma3-tptc";
- ti,hwmods = "tptc2";
- reg = <0x49a00000 0x100000>;
- interrupts = <114>;
- interrupt-names = "edm3_tcerrint";
-};
-
-sham: sham@...00000 {
- compatible = "ti,omap4-sham";
- ti,hwmods = "sham";
- reg = <0x53100000 0x200>;
- interrupts = <109>;
- /* DMA channel 36 executed on eDMA TC0 - low priority queue */
- dmas = <&edma 36 0>;
- dma-names = "rx";
-};
-
-mcasp0: mcasp@...38000 {
- compatible = "ti,am33xx-mcasp-audio";
- ti,hwmods = "mcasp0";
- reg = <0x48038000 0x2000>,
- <0x46000000 0x400000>;
- reg-names = "mpu", "dat";
- interrupts = <80>, <81>;
- interrupt-names = "tx", "rx";
- /* DMA channels 8 and 9 executed on eDMA TC2 - high priority queue */
- dmas = <&edma 8 2>,
- <&edma 9 2>;
- dma-names = "tx", "rx";
-};
-
-2.
-edma1: edma@...8000 {
- compatible = "ti,k2g-edma3-tpcc", "ti,edma3-tpcc";
- reg = <0x02728000 0x8000>;
- reg-names = "edma3_cc";
- interrupts = <GIC_SPI 208 IRQ_TYPE_EDGE_RISING>,
- <GIC_SPI 219 IRQ_TYPE_EDGE_RISING>,
- <GIC_SPI 220 IRQ_TYPE_EDGE_RISING>;
- interrupt-names = "edma3_ccint", "emda3_mperr",
- "edma3_ccerrint";
- dma-requests = <64>;
- #dma-cells = <2>;
-
- ti,tptcs = <&edma1_tptc0 7>, <&edma1_tptc1 0>;
-
- /*
- * memcpy is disabled, can be enabled with:
- * ti,edma-memcpy-channels = <12 13 14 15>;
- * for example.
- */
-
- power-domains = <&k2g_pds 0x4f>;
-};
-
-edma1_tptc0: tptc@...0000 {
- compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc";
- reg = <0x027b0000 0x400>;
- power-domains = <&k2g_pds 0x4f>;
-};
-
-edma1_tptc1: tptc@...8000 {
- compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc";
- reg = <0x027b8000 0x400>;
- power-domains = <&k2g_pds 0x4f>;
-};
-
-mmc0: mmc@...00000 {
- compatible = "ti,k2g-hsmmc", "ti,omap4-hsmmc";
- reg = <0x23000000 0x400>;
- interrupts = <GIC_SPI 96 IRQ_TYPE_EDGE_RISING>;
- dmas = <&edma1 24 0>, <&edma1 25 0>;
- dma-names = "tx", "rx";
- bus-width = <4>;
- ti,needs-special-reset;
- no-1-8-v;
- max-frequency = <96000000>;
- power-domains = <&k2g_pds 0xb>;
- clocks = <&k2g_clks 0xb 1>, <&k2g_clks 0xb 2>;
- clock-names = "fck", "mmchsdb_fck";
-};
-
-------------------------------------------------------------------------------
-DEPRECATED binding, new DTS files must use the ti,edma3-tpcc/ti,edma3-tptc
-binding.
-
-Required properties:
-- compatible : "ti,edma3"
-- #dma-cells: Should be set to <1>
- Clients should use a single channel number per DMA request.
-- reg: Memory map for accessing module
-- interrupts: Exactly 3 interrupts need to be specified in the order:
- 1. Transfer completion interrupt.
- 2. Memory protection interrupt.
- 3. Error interrupt.
-Optional properties:
-- ti,hwmods: Name of the hwmods associated to the EDMA
-- ti,edma-xbar-event-map: Crossbar event to channel map
-
-Deprecated properties:
-Listed here in case one wants to boot an old kernel with new DTB. These
-properties might need to be added to the new DTS files.
-- ti,edma-regions: Number of regions
-- ti,edma-slots: Number of slots
-- dma-channels: Specify total DMA channels per CC
-
-Example:
-
-edma: edma@...00000 {
- reg = <0x49000000 0x10000>;
- interrupt-parent = <&intc>;
- interrupts = <12 13 14>;
- compatible = "ti,edma3";
- ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
- #dma-cells = <1>;
- ti,edma-xbar-event-map = /bits/ 16 <1 12
- 2 13>;
-};
diff --git a/Documentation/devicetree/bindings/dma/ti/ti,edma3-tpcc.yaml b/Documentation/devicetree/bindings/dma/ti/ti,edma3-tpcc.yaml
new file mode 100644
index 0000000000000..6c14b3367dd8a
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/ti/ti,edma3-tpcc.yaml
@@ -0,0 +1,142 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/ti/ti,edma3-tpcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments eDMA3 Channel Controller
+
+description: |
+ The eDMA3 consists of two components, Channel controller (CC) and Transfer
+ Controller(s) (TC). The CC is the main entry for DMA users since it is
+ responsible for the DMA channel handling, while the TCs are responsible to
+ execute the actual DMA tansfer. This documents the Channel Controller.
+
+maintainers:
+ - Andrew Davis <afd@...com>
+
+allOf:
+ - $ref: /schemas/dma/dma-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - const: ti,edma3-tpcc # OMAP, AM33xx, and AM43xx
+ - items:
+ - const: ti,k2g-edma3-tpcc # 66AK2G
+ - const: ti,edma3-tpcc
+
+ reg:
+ maxItems: 1
+
+ reg-names:
+ const: edma3_cc
+
+ interrupts:
+ items:
+ - description: CCINT Interrupt
+ - description: MPERR Interrupt
+ - description: CCERRINT Interrupt
+
+ interrupt-names:
+ items:
+ - const: edma3_ccint
+ - const: edma3_mperr
+ - const: edma3_ccerrint
+
+ "#dma-cells":
+ const: 2
+ description: |
+ The first cell is the DMA request number.
+ The second cell is the TC the channel is serviced on.
+
+ ti,tptcs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: |
+ List of TPTCs associated with the eDMA in the following form,
+ <&tptc_phandle TC_priority_number>. The highest priority is 0.
+
+ power-domains:
+ maxItems: 1
+
+ ti,edma-memcpy-channels:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: |
+ List of channels allocated to be used for memcpy, iow
+ these channels will be SW triggered channels.
+
+ ti,edma-reserved-slot-ranges:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: |
+ PaRAM slot ranges which should not be used by the driver,
+ they are allocated to be used by for example the DSP.
+
+ dma-channel-mask:
+ description: |
+ Mask of usable channels. Single uint32 for EDMA with 32 channels,
+ array of two uint32 for EDMA with 64 channels.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+ - "#dma-cells"
+ - ti,tptcs
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,k2g-edma3-tptc
+then:
+ required:
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ dma-controller@...00000 {
+ compatible = "ti,edma3-tpcc";
+ reg = <0x49000000 0x10000>;
+ reg-names = "edma3_cc";
+ interrupts = <12 13 14>;
+ interrupt-names = "edma3_ccint", "edma3_mperr", "edma3_ccerrint";
+ dma-requests = <64>;
+ #dma-cells = <2>;
+
+ ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 7>, <&edma_tptc2 0>;
+
+ /* Channel 20 and 21 is allocated for memcpy */
+ ti,edma-memcpy-channels = <20 21>;
+ /* The following PaRAM slots are reserved: 35-44 and 100-109 */
+ ti,edma-reserved-slot-ranges = <35 10>, <100 10>;
+ /* The following channels are reserved: 35-44 */
+ dma-channel-mask = <0xffffffff /* Channel 0-31 */
+ 0xffffe007>; /* Channel 32-63 */
+ };
+
+ sham@...00000 {
+ compatible = "ti,omap4-sham";
+ reg = <0x53100000 0x200>;
+ interrupts = <109>;
+ /* DMA channel 36 executed on eDMA TC0 - low priority queue */
+ dmas = <&edma 36 0>;
+ dma-names = "rx";
+ };
+
+ mcasp@...38000 {
+ compatible = "ti,am33xx-mcasp-audio";
+ reg = <0x48038000 0x2000>,
+ <0x46000000 0x400000>;
+ reg-names = "mpu", "dat";
+ interrupts = <80>, <81>;
+ interrupt-names = "tx", "rx";
+ /* DMA channels 8 and 9 executed on eDMA TC2 - high priority queue */
+ dmas = <&edma 8 2>,
+ <&edma 9 2>;
+ dma-names = "tx", "rx";
+ };
diff --git a/Documentation/devicetree/bindings/dma/ti/ti,edma3-tptc.yaml b/Documentation/devicetree/bindings/dma/ti/ti,edma3-tptc.yaml
new file mode 100644
index 0000000000000..b73db3283f577
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/ti/ti,edma3-tptc.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/ti/ti,edma3-tptc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments eDMA3 Transfer Controller
+
+description: |
+ The eDMA3 consists of two components, Channel controller (CC) and Transfer
+ Controller(s) (TC). The CC is the main entry for DMA users since it is
+ responsible for the DMA channel handling, while the TCs are responsible to
+ execute the actual DMA tansfer. This documents the Transfer Controller.
+
+maintainers:
+ - Andrew Davis <afd@...com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: ti,edma3-tptc # OMAP, AM33xx, and AM43xx
+ - items:
+ - const: ti,k2g-edma3-tptc # 66AK2G
+ - const: ti,edma3-tptc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description: Interrupt number for TCerrint
+ maxItems: 1
+
+ interrupt-names:
+ const: edma3_tcerrint
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,k2g-edma3-tptc
+then:
+ required:
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ tptc@...00000 {
+ compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc";
+ reg = <0x49800000 0x100000>;
+ interrupts = <112>;
+ interrupt-names = "edm3_tcerrint";
+ power-domains = <&k2g_pds 0xb>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 97f51d5ec1cfd..b19cfac762b42 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21515,7 +21515,6 @@ M: Peter Ujfalusi <peter.ujfalusi@...il.com>
L: dmaengine@...r.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt
-F: Documentation/devicetree/bindings/dma/ti-edma.txt
F: Documentation/devicetree/bindings/dma/ti/
F: drivers/dma/ti/
F: include/linux/dma/k3-psil.h
--
2.39.2
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