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[RESEND,v10] dt-bindings: ufs: Add bindings for Samsung ufs host

Message ID 20200625003025.11656-1-alim.akhtar@samsung.com
State Superseded
Headers show
Series [RESEND,v10] dt-bindings: ufs: Add bindings for Samsung ufs host | expand

Commit Message

Alim Akhtar June 25, 2020, 12:30 a.m. UTC 
This patch adds DT bindings for Samsung ufs hci

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
---

Hi Rob
This is just a rebase on your's dt/next

This patch was part of [1]
[1] https://lkml.org/lkml/2020/5/27/1697

 .../bindings/ufs/samsung,exynos-ufs.yaml      | 89 +++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml


base-commit: b3a9e3b9622ae10064826dccb4f7a52bd88c7407
prerequisite-patch-id: e0425bbe8f2aff3882b728a0caf0218b6b3e9b6e
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prerequisite-patch-id: 8505df2fd70632150b50543cadc6fd7dd42d191c
prerequisite-patch-id: 1a9701ab83425940c8aacb76737edb57ab815e47
prerequisite-patch-id: 7881e0b87f1f04f657d9e6d450fb5231ad6ffa1a
prerequisite-patch-id: 01dbc0e550e3fcad6e525e7e3183f9f0312e8496
prerequisite-patch-id: ad801812fff960abab3f27d2c7383be9fd9aa439
prerequisite-patch-id: 65474c9540e6dc749d30223897de1f486d6b3843
prerequisite-patch-id: 64b58cd4c5ecfacf28fc20c31a6617092a1e1931
prerequisite-patch-id: 9bcdd2995fd3f6361f8d5e89c56645058ac9ff96
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Patch

diff --git a/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml b/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml
new file mode 100644
index 000000000000..38193975c9f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml
@@ -0,0 +1,89 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ufs/samsung,exynos-ufs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung SoC series UFS host controller Device Tree Bindings
+
+maintainers:
+  - Alim Akhtar <alim.akhtar@samsung.com>
+
+description: |
+  Each Samsung UFS host controller instance should have its own node.
+  This binding define Samsung specific binding other then what is used
+  in the common ufshcd bindings
+  [1] Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+
+properties:
+
+  compatible:
+    enum:
+      - samsung,exynos7-ufs
+
+  reg:
+    items:
+     - description: HCI register
+     - description: vendor specific register
+     - description: unipro register
+     - description: UFS protector register
+
+  reg-names:
+    items:
+      - const: hci
+      - const: vs_hci
+      - const: unipro
+      - const: ufsp
+
+  clocks:
+    items:
+      - description: ufs link core clock
+      - description: unipro main clock
+
+  clock-names:
+    items:
+      - const: core_clk
+      - const: sclk_unipro_main
+
+  interrupts:
+    maxItems: 1
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    const: ufs-phy
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - phys
+  - phy-names
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/exynos7-clk.h>
+
+    ufs: ufs@15570000 {
+       compatible = "samsung,exynos7-ufs";
+       reg = <0x15570000 0x100>,
+             <0x15570100 0x100>,
+             <0x15571000 0x200>,
+             <0x15572000 0x300>;
+       reg-names = "hci", "vs_hci", "unipro", "ufsp";
+       interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>;
+       clocks = <&clock_fsys1 ACLK_UFS20_LINK>,
+                <&clock_fsys1 SCLK_UFSUNIPRO20_USER>;
+       clock-names = "core_clk", "sclk_unipro_main";
+       pinctrl-names = "default";
+       pinctrl-0 = <&ufs_rst_n &ufs_refclk_out>;
+       phys = <&ufs_phy>;
+       phy-names = "ufs-phy";
+    };
+...