bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 174 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0590-dt-bindings-display-vc4-hdmi-Add-BCM2711-HDMI-contro.patch b/target/linux/bcm27xx/patches-5.4/950-0590-dt-bindings-display-vc4-hdmi-Add-BCM2711-HDMI-contro.patch
new file mode 100644
index 0000000000..c41e063fde
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0590-dt-bindings-display-vc4-hdmi-Add-BCM2711-HDMI-contro.patch
@@ -0,0 +1,174 @@
+From 965351ba5a271c0a4a7776193b7af78871370f7a Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 13 Feb 2020 16:45:24 +0100
+Subject: [PATCH] dt-bindings: display: vc4: hdmi: Add BCM2711 HDMI
+ controllers bindings
+
+The HDMI controllers found in the BCM2711 SoC need some adjustments to the
+bindings, especially since the registers have been shuffled around in more
+register ranges.
+
+Cc: Rob Herring <robh+dt@kernel.org>
+Cc: devicetree@vger.kernel.org
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ .../bindings/display/brcm,bcm2835-hdmi.yaml   | 118 ++++++++++++++++--
+ 1 file changed, 109 insertions(+), 9 deletions(-)
+
+--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
++++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
+@@ -11,24 +11,58 @@ maintainers:
+ 
+ properties:
+   compatible:
+-    const: brcm,bcm2835-hdmi
++    enum:
++      - brcm,bcm2835-hdmi
++      - brcm,bcm2711-hdmi0
++      - brcm,bcm2711-hdmi1
+ 
+   reg:
++    oneOf:
++      - items:
++        - description: HDMI register range
++        - description: HD register range
++
++      - items:
++        - description: HDMI controller register range
++        - description: DVP register range
++        - description: HDMI PHY register range
++        - description: Rate Manager register range
++        - description: Packet RAM register range
++        - description: Metadata RAM register range
++        - description: CSC register range
++        - description: CEC register range
++        - description: HD register range
++
++  reg-names:
+     items:
+-      - description: HDMI register range
+-      - description: HD register range
++      - const: hdmi
++      - const: dvp
++      - const: phy
++      - const: rm
++      - const: packet
++      - const: metadata
++      - const: csc
++      - const: cec
++      - const: hd
+ 
+   interrupts:
+     minItems: 2
+ 
+   clocks:
+-    items:
+-      - description: The pixel clock
+-      - description: The HDMI state machine clock
++    oneOf:
++      - items:
++        - description: The pixel clock
++        - description: The HDMI state machine clock
++
++      - items:
++        - description: The HDMI state machine clock
+ 
+   clock-names:
+-    items:
+-      - const: pixel
++    oneOf:
++      - items:
++        - const: pixel
++        - const: hdmi
++
+       - const: hdmi
+ 
+   ddc:
+@@ -51,15 +85,54 @@ properties:
+   dma-names:
+     const: audio-rx
+ 
++  resets:
++    maxItems: 1
++
+ required:
+   - compatible
+   - reg
+-  - interrupts
+   - clocks
+   - ddc
+ 
+ additionalProperties: false
+ 
++if:
++  properties:
++    compatible:
++      contains:
++        enum:
++          - brcm,bcm2711-hdmi0
++          - brcm,bcm2711-hdmi1
++
++then:
++  properties:
++    reg:
++      minItems: 9
++
++    clocks:
++      maxItems: 1
++
++    clock-names:
++      maxItems: 1
++
++  required:
++    - reg-names
++    - resets
++
++else:
++  properties:
++    reg:
++      maxItems: 2
++
++    clocks:
++      minItems: 2
++
++    clock-names:
++      minItems: 2
++
++  required:
++    - interrupts
++
+ examples:
+   - |
+     #include <dt-bindings/clock/bcm2835.h>
+@@ -77,4 +150,31 @@ examples:
+         clock-names = "pixel", "hdmi";
+     };
+ 
++  - |
++    hdmi0: hdmi@7ef00700 {
++        compatible = "brcm,bcm2711-hdmi0";
++        reg = <0x7ef00700 0x300>,
++              <0x7ef00300 0x200>,
++              <0x7ef00f00 0x80>,
++              <0x7ef00f80 0x80>,
++              <0x7ef01b00 0x200>,
++              <0x7ef01f00 0x400>,
++              <0x7ef00200 0x80>,
++              <0x7ef04300 0x100>,
++              <0x7ef20000 0x100>;
++        reg-names = "hdmi",
++                    "dvp",
++                    "phy",
++                    "rm",
++                    "packet",
++                    "metadata",
++                    "csc",
++                    "cec",
++                    "hd";
++        clocks = <&firmware_clocks 13>;
++        clock-names = "hdmi";
++        resets = <&dvp 0>;
++        ddc = <&ddc0>;
++    };
++
+ ...