Add support for audio on SC7280 based targets

Merge series from Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>:

This patch set is to add support for Audio over wcd codec,
digital mics, through digital codecs and without ADSP.

Changes Since V15:
    -- Bisect patches to avoid build failure in other architectures.
    -- Remove redundant variables lpass variant structure.
Changes Since V14:
    -- Split common wrapper function to separate wrapper for each handle in platform driver.
    -- Update cdc dma buffer handling with memremap with ioremap.
    -- Remove redundant error prints.
    -- Update irq flag.
Changes Since V13:
    -- Change bulk cdc clock voting to individual clock voting.
    -- Remove redundant code, conditional check and prints.
    -- Fix typo errors.
Changes Since V12:
    -- Fix arguments type mismatch.
Changes Since V11:
    -- Fix kernel robot issue on arguments type mismatch.
Changes Since V10:
    -- Split bulk clock voting to individual clock voting as per use case in cdc-dma driver.
    -- Add missing codec dma clocks.
    -- Update rxtx lpm buffer size.
Changes Since V9:
    -- Change individual clock voting to bulk clock voting of lpass-sc7280 platform driver.
    -- Remove redundant clocks in lpass variant structure.
    -- Add mclk for MI2S based headset path.
    -- Remove unused lpass variant structure members in lpass header.
Changes Since V8:
    -- Fix errors in sc7280 lpass cpu dt-bindings.
    -- Move to quicinc domain email id's.
Changes Since V7:
    -- Fix indentation errors.
    -- Bisect patches to avoid interdependency.
Changes Since V6:
    -- Split cdc dma regmap config macros.
    -- Add write dma reg fields for i2s path.
    -- Add helper function to distinguish rxtx and va dma ports.
    -- Optimizing clock and reg name in cpu dt-bindings.
    -- Update buffer management for cdc dma path.
    -- Remove Kconfig fields of machine driver.
Changes Since V5:
    -- Include MI2S primary node to snd_soc_dai_driver in lpass-sc7280 platform driver.
    -- Move dependency patch list to corresponding patch.
    -- Add support for missing cdc-dma ports.
    -- Change if/else conditional statements to switch cases.
    -- Add missing error handlings.
    -- Typo errors fix.
Changes Since V4:
    -- Remove unused variable in lpass-sc7280 platform driver.
Changes Since V3:
    -- Remove redundant power domain controls. As power domains can be configured from dtsi.
Changes Since V2:
    -- Split lpass sc7280 cpu driver patch and create regmap config patch.
    -- Create patches based on latest kernel tip.
    -- Add helper function to get dma control and lpaif handle.
    -- Remove unused variables.
Changes Since V1:
    -- Typo errors fix
    -- CPU driver readable/writable apis optimization.
    -- Add Missing config patch
    -- Add Common api for repeated dmactl initialization.
Srinivasa Rao Mandadapu (9):
  ASoC: qcom: Move lpass_pcm_data structure to lpass header
  ASoC: qcom: lpass: Add dma fields for codec dma lpass interface
  ASoC: qcom: Add helper function to get dma control and lpaif handle
  ASoC: qcom: Add register definition for codec rddma and wrdma
  ASoC: qcom: Add regmap config support for codec dma driver
  ASoC: qcom: Add support for codec dma driver
  ASoC: qcom: Add lpass CPU driver for codec dma control
  ASoC: dt-bindings: Add SC7280 lpass cpu bindings
  ASoC: qcom: lpass-sc7280: Add platform driver for lpass audio

 .../devicetree/bindings/sound/qcom,lpass-cpu.yaml  |  75 ++-
 sound/soc/qcom/Kconfig                             |  11 +
 sound/soc/qcom/Makefile                            |   4 +
 sound/soc/qcom/lpass-cdc-dma.c                     | 301 ++++++++++
 sound/soc/qcom/lpass-cpu.c                         | 253 ++++++++-
 sound/soc/qcom/lpass-lpaif-reg.h                   | 127 ++++-
 sound/soc/qcom/lpass-platform.c                    | 628 ++++++++++++++++++---
 sound/soc/qcom/lpass-sc7280.c                      | 438 ++++++++++++++
 sound/soc/qcom/lpass.h                             | 141 +++++
 9 files changed, 1890 insertions(+), 88 deletions(-)
 create mode 100644 sound/soc/qcom/lpass-cdc-dma.c
 create mode 100644 sound/soc/qcom/lpass-sc7280.c

--
2.7.4

Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml

@@ -22,35 +22,41 @@ properties:
       - qcom,lpass-cpu
       - qcom,apq8016-lpass-cpu
       - qcom,sc7180-lpass-cpu
+      - qcom,sc7280-lpass-cpu
 
   reg:
-    maxItems: 2
+    minItems: 2
+    maxItems: 6
     description: LPAIF core registers
 
   reg-names:
-    maxItems: 2
+    minItems: 2
+    maxItems: 6
 
   clocks:
     minItems: 3
-    maxItems: 6
+    maxItems: 7
 
   clock-names:
     minItems: 3
-    maxItems: 6
+    maxItems: 7
 
   interrupts:
-    maxItems: 2
+    minItems: 2
+    maxItems: 4
     description: LPAIF DMA buffer interrupt
 
   interrupt-names:
-    maxItems: 2
+    minItems: 2
+    maxItems: 4
 
   qcom,adsp:
     $ref: /schemas/types.yaml#/definitions/phandle
     description: Phandle for the audio DSP node
 
   iommus:
-    maxItems: 2
+    minItems: 2
+    maxItems: 3
     description: Phandle to apps_smmu node with sid mask
 
   power-domains:
@@ -69,7 +75,7 @@ patternProperties:
   "^dai-link@[0-9a-f]$":
     type: object
     description: |
-      LPASS CPU dai node for each I2S device. Bindings of each node
+      LPASS CPU dai node for each I2S device or Soundwire device. Bindings of each node
       depends on the specific driver providing the functionality and
       properties.
     properties:
@@ -174,6 +180,59 @@ allOf:
         - iommus
         - power-domains
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,sc7280-lpass-cpu
+
+    then:
+      properties:
+        clock-names:
+          oneOf:
+            - items:   #for I2S
+                - const: aon_cc_audio_hm_h
+                - const: core_cc_sysnoc_mport_core
+                - const: core_cc_ext_if1_ibit
+            - items:   #for Soundwire
+                - const: aon_cc_audio_hm_h
+                - const: audio_cc_codec_mem0
+                - const: audio_cc_codec_mem1
+                - const: audio_cc_codec_mem2
+            - items:   #for HDMI
+                - const: aon_cc_audio_hm_h
+
+        reg-names:
+          anyOf:
+            - items:   #for I2S
+                - const: lpass-lpaif
+            - items:   #for I2S and HDMI
+                - const: lpass-hdmiif
+                - const: lpass-lpaif
+            - items:   #for I2S, soundwire and HDMI
+                - const: lpass-hdmiif
+                - const: lpass-lpaif
+                - const: lpass-rxtx-cdc-dma-lpm
+                - const: lpass-rxtx-lpaif
+                - const: lpass-va-lpaif
+                - const: lpass-va-cdc-dma-lpm
+        interrupt-names:
+          anyOf:
+            - items:   #for I2S
+                - const: lpass-irq-lpaif
+            - items:   #for I2S and HDMI
+                - const: lpass-irq-lpaif
+                - const: lpass-irq-hdmi
+            - items:   #for I2S, soundwire and HDMI
+                - const: lpass-irq-lpaif
+                - const: lpass-irq-hdmi
+                - const: lpass-irq-vaif
+                - const: lpass-irq-rxtxif
+
+      required:
+        - iommus
+        - power-domains
+
 examples:
   - |
     #include <dt-bindings/sound/sc7180-lpass.h>

sound/soc/qcom/Kconfig

@@ -20,6 +20,10 @@ config SND_SOC_LPASS_PLATFORM
 	tristate
 	select REGMAP_MMIO
 
+config SND_SOC_LPASS_CDC_DMA
+	tristate
+	select REGMAP_MMIO
+
 config SND_SOC_LPASS_IPQ806X
 	tristate
 	select SND_SOC_LPASS_CPU
@@ -36,6 +40,13 @@ config SND_SOC_LPASS_SC7180
 	select SND_SOC_LPASS_PLATFORM
 	select SND_SOC_LPASS_HDMI
 
+config SND_SOC_LPASS_SC7280
+	tristate
+	select SND_SOC_LPASS_CPU
+	select SND_SOC_LPASS_PLATFORM
+	select SND_SOC_LPASS_HDMI
+	select SND_SOC_LPASS_CDC_DMA
+
 config SND_SOC_STORM
 	tristate "ASoC I2S support for Storm boards"
 	depends on GPIOLIB

sound/soc/qcom/Makefile

@@ -1,18 +1,22 @@
 # SPDX-License-Identifier: GPL-2.0
 # Platform
 snd-soc-lpass-cpu-objs := lpass-cpu.o
+snd-soc-lpass-cdc-dma-objs := lpass-cdc-dma.o
 snd-soc-lpass-hdmi-objs := lpass-hdmi.o
 snd-soc-lpass-platform-objs := lpass-platform.o
 snd-soc-lpass-ipq806x-objs := lpass-ipq806x.o
 snd-soc-lpass-apq8016-objs := lpass-apq8016.o
 snd-soc-lpass-sc7180-objs := lpass-sc7180.o
+snd-soc-lpass-sc7280-objs := lpass-sc7280.o
 
 obj-$(CONFIG_SND_SOC_LPASS_CPU) += snd-soc-lpass-cpu.o
+obj-$(CONFIG_SND_SOC_LPASS_CDC_DMA) += snd-soc-lpass-cdc-dma.o
 obj-$(CONFIG_SND_SOC_LPASS_HDMI) += snd-soc-lpass-hdmi.o
 obj-$(CONFIG_SND_SOC_LPASS_PLATFORM) += snd-soc-lpass-platform.o
 obj-$(CONFIG_SND_SOC_LPASS_IPQ806X) += snd-soc-lpass-ipq806x.o
 obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o
 obj-$(CONFIG_SND_SOC_LPASS_SC7180) += snd-soc-lpass-sc7180.o
+obj-$(CONFIG_SND_SOC_LPASS_SC7280) += snd-soc-lpass-sc7280.o
 
 # Machine
 snd-soc-storm-objs := storm.o