Merge tag 'spi-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "This has been a fairly quiet release for SPI, though it is likely that
  the next release will have some big changes as there's some
  preparatory work for multiple chip select support gone in - the rest
  of the code is on the list but will need to be rebased onto -rc1.
  Otherwise there's a couple of new tunables for chip select timings,
  some new devices and smaller device specific updates and fixes.

   - Support for configuring the hold and minimum inactive times for
     chip selects.

   - Beginnings of support for supporting devices which have multiple
     chip selects on a single device.

   - Support for newer Broadcom HSSPI and Intel controllers, Silicon
     Labs EM3581 and SI3210"

* tag 'spi-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (67 commits)
  spi: dt-bindings: qcom,spi-qcom-qspi: document OPP and power-domains
  spi: spidev: drop the incorrect notice from Kconfig
  spi: bcm63xx-hsspi: fix error code in probe
  spi: bcmbca-hsspi: Fix error code in probe() function
  spi: synquacer: Fix timeout handling in synquacer_spi_transfer_one()
  spi: intel: Check number of chip selects after reading the descriptor
  spi: xilinx: add force_irq for QSPI mode
  spi: spi-st-ssc: convert to DT schema
  spi: Reorder fields in 'struct spi_transfer'
  spi: cadence-quadspi: use STIG mode for small reads
  spi: cadence-quadspi: setup ADDR Bits in cmd reads
  spi: cadence-quadspi: Add flag for direct mode writes
  spi: cadence-quadspi: Reset CMD_CTRL Reg on cmd r/w completion
  MAINTAINERS: Remove file reference for Broadcom Broadband SoC HS SPI driver entry
  spi: bcm63xx-hsspi: bcmbca-hsspi: fix _be16 type usage
  MAINTAINERS: Add entry for Broadcom Broadband SoC HS SPI drivers
  spi: bcmbca-hsspi: Add driver for newer HSSPI controller
  spi: bcm63xx-hsspi: Disable spi mem dual io read op support
  spi: spi-mem: Allow controller supporting mem_ops without exec_op
  spi: bcm63xx-hsspi: Add prepend mode support
  ...

74 files changed, 2275 insertions, 767 deletions

diff --git a/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml b/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml
index f1176a28fd87..eb0567b2971a 100644
--- a/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Allwinner A10 SPI Controller
 
 allOf:
-  - $ref: "spi-controller.yaml"
+  - $ref: spi-controller.yaml
 
 maintainers:
   - Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
index 58b7056f4a70..acf218507d22 100644
--- a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Allwinner A31 SPI Controller
 
 allOf:
-  - $ref: "spi-controller.yaml"
+  - $ref: spi-controller.yaml
 
 maintainers:
   - Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
index 53eb6562b979..4e28e6e9d8e0 100644
--- a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
+++ b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
@@ -2,8 +2,8 @@
 # Copyright 2019 BayLibre, SAS
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/spi/amlogic,meson-gx-spicc.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/spi/amlogic,meson-gx-spicc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Amlogic Meson SPI Communication Controller
 
@@ -41,7 +41,7 @@ properties:
     maxItems: 2
 
 allOf:
-  - $ref: "spi-controller.yaml#"
+  - $ref: spi-controller.yaml#
   - if:
       properties:
         compatible:
@@ -100,17 +100,17 @@ unevaluatedProperties: false
 examples:
   - |
     spi@c1108d80 {
-          compatible = "amlogic,meson-gx-spicc";
-          reg = <0xc1108d80 0x80>;
-          interrupts = <112>;
-          clocks = <&clk81>;
-          clock-names = "core";
-          #address-cells = <1>;
-          #size-cells = <0>;
-
-          display@0 {
-              compatible = "lg,lg4573";
-              spi-max-frequency = <1000000>;
-              reg = <0>;
-          };
+        compatible = "amlogic,meson-gx-spicc";
+        reg = <0xc1108d80 0x80>;
+        interrupts = <112>;
+        clocks = <&clk81>;
+        clock-names = "core";
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        display@0 {
+            compatible = "lg,lg4573";
+            spi-max-frequency = <1000000>;
+            reg = <0>;
+        };
     };
diff --git a/Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml b/Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml
index ac3b2ec300ac..8e769ccda97f 100644
--- a/Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml
+++ b/Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml
@@ -2,8 +2,8 @@
 # Copyright 2019 BayLibre, SAS
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/spi/amlogic,meson6-spifc.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/spi/amlogic,meson6-spifc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Amlogic Meson SPI Flash Controller
 
@@ -11,7 +11,7 @@ maintainers:
   - Neil Armstrong <neil.armstrong@linaro.org>
 
 allOf:
-  - $ref: "spi-controller.yaml#"
+  - $ref: spi-controller.yaml#
 
 description: |
   The Meson SPIFC is a controller optimized for communication with SPI
@@ -40,15 +40,15 @@ unevaluatedProperties: false
 examples:
   - |
     spi@c1108c80 {
-          compatible = "amlogic,meson6-spifc";
-          reg = <0xc1108c80 0x80>;
-          clocks = <&clk81>;
-          #address-cells = <1>;
-          #size-cells = <0>;
-
-          flash: flash@0 {
-              compatible = "spansion,m25p80", "jedec,spi-nor";
-              reg = <0>;
-              spi-max-frequency = <40000000>;
-          };
+        compatible = "amlogic,meson6-spifc";
+        reg = <0xc1108c80 0x80>;
+        clocks = <&clk81>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        flash: flash@0 {
+            compatible = "spansion,m25p80", "jedec,spi-nor";
+            reg = <0>;
+            spi-max-frequency = <40000000>;
+        };
     };
diff --git a/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml b/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml
index e6c817de3449..57d932af4506 100644
--- a/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml
+++ b/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml
@@ -15,7 +15,7 @@ description: |
   SPI) of the AST2400, AST2500 and AST2600 SOCs.
 
 allOf:
-  - $ref: "spi-controller.yaml#"
+  - $ref: spi-controller.yaml#
 
 properties:
   compatible:
@@ -60,23 +60,23 @@ examples:
         interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
 
         flash@0 {
-                reg = < 0 >;
-                compatible = "jedec,spi-nor";
-                spi-max-frequency = <50000000>;
-                spi-rx-bus-width = <2>;
+            reg = < 0 >;
+            compatible = "jedec,spi-nor";
+            spi-max-frequency = <50000000>;
+            spi-rx-bus-width = <2>;
         };
 
         flash@1 {
-                reg = < 1 >;
-                compatible = "jedec,spi-nor";
-                spi-max-frequency = <50000000>;
-                spi-rx-bus-width = <2>;
+            reg = < 1 >;
+            compatible = "jedec,spi-nor";
+            spi-max-frequency = <50000000>;
+            spi-rx-bus-width = <2>;
         };
 
         flash@2 {
-                reg = < 2 >;
-                compatible = "jedec,spi-nor";
-                spi-max-frequency = <50000000>;
-                spi-rx-bus-width = <2>;
+            reg = < 2 >;
+            compatible = "jedec,spi-nor";
+            spi-max-frequency = <50000000>;
+            spi-rx-bus-width = <2>;
         };
     };
diff --git a/Documentation/devicetree/bindings/spi/brcm,bcm63xx-hsspi.yaml b/Documentation/devicetree/bindings/spi/brcm,bcm63xx-hsspi.yaml
new file mode 100644
index 000000000000..6554978583f8
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/brcm,bcm63xx-hsspi.yaml
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/brcm,bcm63xx-hsspi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Broadband SoC High Speed SPI controller
+
+maintainers:
+  - William Zhang <william.zhang@broadcom.com>
+  - Kursad Oney <kursad.oney@broadcom.com>
+  - Jonas Gorski <jonas.gorski@gmail.com>
+
+description: |
+  Broadcom Broadband SoC supports High Speed SPI master controller since the
+  early MIPS based chips such as BCM6328 and BCM63268.  This initial rev 1.0
+  controller was carried over to recent ARM based chips, such as BCM63138,
+  BCM4908 and BCM6858. The old MIPS based chip should continue to use the
+  brcm,bcm6328-hsspi compatible string. The recent ARM based chip is required to
+  use the brcm,bcmbca-hsspi-v1.0 as part of its compatible string list as
+  defined below to match the specific chip along with ip revision info.
+
+  This rev 1.0 controller has a limitation that can not keep the chip select line
+  active between the SPI transfers within the same SPI message. This can
+  terminate the transaction to some SPI devices prematurely. The issue can be
+  worked around by either the controller's prepend mode or using the dummy chip
+  select workaround. Driver automatically picks the suitable mode based on
+  transfer type so it is transparent to the user.
+
+  The newer SoCs such as BCM6756, BCM4912 and BCM6855 include an updated SPI
+  controller rev 1.1 that add the capability to allow the driver to control chip
+  select explicitly. This solves the issue in the old controller.
+
+properties:
+  compatible:
+    oneOf:
+      - const: brcm,bcm6328-hsspi
+      - items:
+          - enum:
+              - brcm,bcm47622-hsspi
+              - brcm,bcm4908-hsspi
+              - brcm,bcm63138-hsspi
+              - brcm,bcm63146-hsspi
+              - brcm,bcm63148-hsspi
+              - brcm,bcm63158-hsspi
+              - brcm,bcm63178-hsspi
+              - brcm,bcm6846-hsspi
+              - brcm,bcm6856-hsspi
+              - brcm,bcm6858-hsspi
+              - brcm,bcm6878-hsspi
+          - const: brcm,bcmbca-hsspi-v1.0
+      - items:
+          - enum:
+              - brcm,bcm4912-hsspi
+              - brcm,bcm6756-hsspi
+              - brcm,bcm6813-hsspi
+              - brcm,bcm6855-hsspi
+          - const: brcm,bcmbca-hsspi-v1.1
+
+  reg:
+    items:
+      - description: main registers
+      - description: miscellaneous control registers
+    minItems: 1
+
+  reg-names:
+    items:
+      - const: hsspi
+      - const: spim-ctrl
+    minItems: 1
+
+  clocks:
+    items:
+      - description: SPI master reference clock
+      - description: SPI master pll clock
+
+  clock-names:
+    items:
+      - const: hsspi
+      - const: pll
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+allOf:
+  - $ref: spi-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - brcm,bcm6328-hsspi
+              - brcm,bcmbca-hsspi-v1.0
+    then:
+      properties:
+        reg:
+          maxItems: 1
+        reg-names:
+          maxItems: 1
+    else:
+      properties:
+        reg:
+          minItems: 2
+          maxItems: 2
+        reg-names:
+          minItems: 2
+          maxItems: 2
+      required:
+        - reg-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    spi@ff801000 {
+        compatible = "brcm,bcm6756-hsspi", "brcm,bcmbca-hsspi-v1.1";
+        reg = <0xff801000 0x1000>,
+              <0xff802610 0x4>;
+        reg-names = "hsspi", "spim-ctrl";
+        interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&hsspi>, <&hsspi_pll>;
+        clock-names = "hsspi", "pll";
+        num-cs = <8>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };
diff --git a/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml b/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml
index ec5873919170..28222aae3077 100644
--- a/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml
+++ b/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml
@@ -99,98 +99,98 @@ required:
 examples:
   - | # BRCMSTB SoC: SPI Master (MSPI+BSPI) for SPI-NOR access
     spi@f03e3400 {