linux-kernel - [PATCH v4 2/6] dt-bindindgs: clock: nxp: support i.MX95 Camera CSR module

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Date: Thu, 14 Mar 2024 21:25:11 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Abel Vesa <abelvesa@...nel.org>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: linux-clk@...r.kernel.org, imx@...ts.linux.dev, 
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: [PATCH v4 2/6] dt-bindindgs: clock: nxp: support i.MX95 Camera CSR
 module

From: Peng Fan <peng.fan@....com>

The i.MX95 Camera CSR is a set of registers that provides various
configuration and status of the Camera modules’ operations. Registers
are available to enable clock gating to the ISP and CSI-2 pixel
formatters, enable transport of various pixel data and non-pixel data
types, control their routing, and other functions. Status registers
provide pixel data type error information and pending transaction
from Camera NoC initiators.

This patch is to add clock features for Camera CSR.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 .../bindings/clock/nxp,imx95-camera-csr.yaml       | 50 ++++++++++++++++++++++
 include/dt-bindings/clock/nxp,imx95-clock.h        |  7 +++
 2 files changed, 57 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/nxp,imx95-camera-csr.yaml b/Documentation/devicetree/bindings/clock/nxp,imx95-camera-csr.yaml
new file mode 100644
index 000000000000..e62494e3a8b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,imx95-camera-csr.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,imx95-camera-csr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX95 Camera MIX Block Control
+
+maintainers:
+  - Peng Fan <peng.fan@....com>
+
+properties:
+  compatible:
+    items:
+      - const: nxp,imx95-camera-csr
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+    description:
+      The clock consumer should specify the desired clock by having the clock
+      ID in its "clocks" phandle cell. See
+      include/dt-bindings/clock/nxp,imx95-clock.h
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    syscon@...10000 {
+      compatible = "nxp,imx95-camera-csr", "syscon";
+      reg = <0x4ac10000 0x10000>;
+      #clock-cells = <1>;
+      clocks = <&scmi_clk 62>;
+      power-domains = <&scmi_devpd 3>;
+    };
+...
diff --git a/include/dt-bindings/clock/nxp,imx95-clock.h b/include/dt-bindings/clock/nxp,imx95-clock.h
index 9d8f0a6d12d0..c671c4dbb4d5 100644
--- a/include/dt-bindings/clock/nxp,imx95-clock.h
+++ b/include/dt-bindings/clock/nxp,imx95-clock.h
@@ -11,4 +11,11 @@
 #define IMX95_CLK_VPUBLK_JPEG_DEC		2
 #define IMX95_CLK_VPUBLK_END			3
 
+#define IMX95_CLK_CAMBLK_CSI2_FOR0		0
+#define IMX95_CLK_CAMBLK_CSI2_FOR1		1
+#define IMX95_CLK_CAMBLK_ISP_AXI		2
+#define IMX95_CLK_CAMBLK_ISP_PIXEL		3
+#define IMX95_CLK_CAMBLK_ISP			4
+#define IMX95_CLK_CAMBLK_END			5
+
 #endif	/* __DT_BINDINGS_CLOCK_IMX95_H */

-- 
2.37.1