diff mbox series

[1/3] dt-bindings: clock: document SM8550 DISPCC clock controller

Message ID 20230103-topic-sm8550-upstream-dispcc-v1-1-81bfcc26b2dc@linaro.org
State Accepted
Commit 553f9bd45554aa477ae6114dc092a2f85285c46b
Headers show
Series clk: qcom: Add DISPCC driver for SM8550 | expand

Commit Message

Neil Armstrong Jan. 3, 2023, 1:53 p.m. UTC 
Document device tree bindings for display clock controller for
Qualcomm SM8550 SoC.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 .../bindings/clock/qcom,sm8550-dispcc.yaml         | 106 +++++++++++++++++++++
 include/dt-bindings/clock/qcom,sm8550-dispcc.h     | 101 ++++++++++++++++++++
 2 files changed, 207 insertions(+)

Comments

Krzysztof Kozlowski Jan. 6, 2023, 9:31 a.m. UTC | #1 
On 03/01/2023 14:53, Neil Armstrong wrote:
> Document device tree bindings for display clock controller for
> Qualcomm SM8550 SoC.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  .../bindings/clock/qcom,sm8550-dispcc.yaml         | 106 +++++++++++++++++++++
>  include/dt-bindings/clock/qcom,sm8550-dispcc.h     | 101 ++++++++++++++++++++
>  2 files changed, 207 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml
> new file mode 100644
> index 000000000000..06c04656cb55
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml
> @@ -0,0 +1,106 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/qcom,sm8550-dispcc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Display Clock & Reset Controller for SM8550
> +
> +maintainers:
> +  - Bjorn Andersson <andersson@kernel.org>
> +  - Neil Armstrong <neil.armstrong@linaro.org>
> +
> +description: |
> +  Qualcomm display clock control module provides the clocks, resets and power
> +  domains on SM8550.
> +
> +  See also:: include/dt-bindings/clock/qcom,sm8550-dispcc.h
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,sm8550-dispcc
> +
> +  clocks:
> +    minItems: 3

Clock inputs should be optional if we can really treat them optional,
e.g. reparent to something else or just adjust list of parents. Since
the driver has fixed parent data, it suggests these are not really
optional and they are all in the hardware (always).


Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml
new file mode 100644
index 000000000000..06c04656cb55
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8550-dispcc.yaml
@@ -0,0 +1,106 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8550-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock & Reset Controller for SM8550
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+  - Neil Armstrong <neil.armstrong@linaro.org>
+
+description: |
+  Qualcomm display clock control module provides the clocks, resets and power
+  domains on SM8550.
+
+  See also:: include/dt-bindings/clock/qcom,sm8550-dispcc.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sm8550-dispcc
+
+  clocks:
+    minItems: 3
+    items:
+      - description: Board XO source
+      - description: Board Always On XO source
+      - description: Display's AHB clock
+      - description: sleep clock
+      - description: Byte clock from DSI PHY0
+      - description: Pixel clock from DSI PHY0
+      - description: Byte clock from DSI PHY1
+      - description: Pixel clock from DSI PHY1
+      - description: Link clock from DP PHY0
+      - description: VCO DIV clock from DP PHY0
+      - description: Link clock from DP PHY1
+      - description: VCO DIV clock from DP PHY1
+      - description: Link clock from DP PHY2
+      - description: VCO DIV clock from DP PHY2
+      - description: Link clock from DP PHY3
+      - description: VCO DIV clock from DP PHY3
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+  '#power-domain-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    description:
+      A phandle and PM domain specifier for the MMCX power domain.
+    maxItems: 1
+
+  required-opps:
+    description:
+      A phandle to an OPP node describing required MMCX performance point.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+  - '#reset-cells'
+  - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,sm8550-gcc.h>
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+    clock-controller@af00000 {
+      compatible = "qcom,sm8550-dispcc";
+      reg = <0x0af00000 0x10000>;
+      clocks = <&rpmhcc RPMH_CXO_CLK>,
+               <&rpmhcc RPMH_CXO_CLK_A>,
+               <&gcc GCC_DISP_AHB_CLK>,
+               <&sleep_clk>,
+               <&dsi0_phy 0>,
+               <&dsi0_phy 1>,
+               <&dsi1_phy 0>,
+               <&dsi1_phy 1>,
+               <&dp0_phy 0>,
+               <&dp0_phy 1>,
+               <&dp1_phy 0>,
+               <&dp1_phy 1>,
+               <&dp2_phy 0>,
+               <&dp2_phy 1>,
+               <&dp3_phy 0>,
+               <&dp3_phy 1>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+      #power-domain-cells = <1>;
+      power-domains = <&rpmhpd SM8550_MMCX>;
+      required-opps = <&rpmhpd_opp_low_svs>;
+    };
+...
diff --git a/include/dt-bindings/clock/qcom,sm8550-dispcc.h b/include/dt-bindings/clock/qcom,sm8550-dispcc.h
new file mode 100644
index 000000000000..ed3094c694e0
--- /dev/null
+++ b/include/dt-bindings/clock/qcom,sm8550-dispcc.h
@@ -0,0 +1,101 @@ 
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2022, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_QCOM_SM8550_DISP_CC_H
+#define _DT_BINDINGS_CLK_QCOM_SM8550_DISP_CC_H
+
+/* DISP_CC clocks */
+#define DISP_CC_MDSS_ACCU_CLK					0
+#define DISP_CC_MDSS_AHB1_CLK					1
+#define DISP_CC_MDSS_AHB_CLK					2
+#define DISP_CC_MDSS_AHB_CLK_SRC				3
+#define DISP_CC_MDSS_BYTE0_CLK					4
+#define DISP_CC_MDSS_BYTE0_CLK_SRC				5
+#define DISP_CC_MDSS_BYTE0_DIV_CLK_SRC				6
+#define DISP_CC_MDSS_BYTE0_INTF_CLK				7
+#define DISP_CC_MDSS_BYTE1_CLK					8
+#define DISP_CC_MDSS_BYTE1_CLK_SRC				9
+#define DISP_CC_MDSS_BYTE1_DIV_CLK_SRC				10
+#define DISP_CC_MDSS_BYTE1_INTF_CLK				11
+#define DISP_CC_MDSS_DPTX0_AUX_CLK				12
+#define DISP_CC_MDSS_DPTX0_AUX_CLK_SRC				13
+#define DISP_CC_MDSS_DPTX0_CRYPTO_CLK				14
+#define DISP_CC_MDSS_DPTX0_LINK_CLK				15
+#define DISP_CC_MDSS_DPTX0_LINK_CLK_SRC				16
+#define DISP_CC_MDSS_DPTX0_LINK_DIV_CLK_SRC			17
+#define DISP_CC_MDSS_DPTX0_LINK_INTF_CLK			18
+#define DISP_CC_MDSS_DPTX0_PIXEL0_CLK				19
+#define DISP_CC_MDSS_DPTX0_PIXEL0_CLK_SRC			20
+#define DISP_CC_MDSS_DPTX0_PIXEL1_CLK				21
+#define DISP_CC_MDSS_DPTX0_PIXEL1_CLK_SRC			22
+#define DISP_CC_MDSS_DPTX0_USB_ROUTER_LINK_INTF_CLK		23
+#define DISP_CC_MDSS_DPTX1_AUX_CLK				24
+#define DISP_CC_MDSS_DPTX1_AUX_CLK_SRC				25
+#define DISP_CC_MDSS_DPTX1_CRYPTO_CLK				26
+#define DISP_CC_MDSS_DPTX1_LINK_CLK				27
+#define DISP_CC_MDSS_DPTX1_LINK_CLK_SRC				28
+#define DISP_CC_MDSS_DPTX1_LINK_DIV_CLK_SRC			29
+#define DISP_CC_MDSS_DPTX1_LINK_INTF_CLK			30
+#define DISP_CC_MDSS_DPTX1_PIXEL0_CLK				31
+#define DISP_CC_MDSS_DPTX1_PIXEL0_CLK_SRC			32
+#define DISP_CC_MDSS_DPTX1_PIXEL1_CLK				33
+#define DISP_CC_MDSS_DPTX1_PIXEL1_CLK_SRC			34
+#define DISP_CC_MDSS_DPTX1_USB_ROUTER_LINK_INTF_CLK		35
+#define DISP_CC_MDSS_DPTX2_AUX_CLK				36
+#define DISP_CC_MDSS_DPTX2_AUX_CLK_SRC				37
+#define DISP_CC_MDSS_DPTX2_CRYPTO_CLK				38
+#define DISP_CC_MDSS_DPTX2_LINK_CLK				39
+#define DISP_CC_MDSS_DPTX2_LINK_CLK_SRC				40
+#define DISP_CC_MDSS_DPTX2_LINK_DIV_CLK_SRC			41
+#define DISP_CC_MDSS_DPTX2_LINK_INTF_CLK			42
+#define DISP_CC_MDSS_DPTX2_PIXEL0_CLK				43
+#define DISP_CC_MDSS_DPTX2_PIXEL0_CLK_SRC			44
+#define DISP_CC_MDSS_DPTX2_PIXEL1_CLK				45
+#define DISP_CC_MDSS_DPTX2_PIXEL1_CLK_SRC			46
+#define DISP_CC_MDSS_DPTX3_AUX_CLK				47
+#define DISP_CC_MDSS_DPTX3_AUX_CLK_SRC				48
+#define DISP_CC_MDSS_DPTX3_CRYPTO_CLK				49
+#define DISP_CC_MDSS_DPTX3_LINK_CLK				50
+#define DISP_CC_MDSS_DPTX3_LINK_CLK_SRC				51
+#define DISP_CC_MDSS_DPTX3_LINK_DIV_CLK_SRC			52
+#define DISP_CC_MDSS_DPTX3_LINK_INTF_CLK			53
+#define DISP_CC_MDSS_DPTX3_PIXEL0_CLK				54
+#define DISP_CC_MDSS_DPTX3_PIXEL0_CLK_SRC			55
+#define DISP_CC_MDSS_ESC0_CLK					56
+#define DISP_CC_MDSS_ESC0_CLK_SRC				57
+#define DISP_CC_MDSS_ESC1_CLK					58
+#define DISP_CC_MDSS_ESC1_CLK_SRC				59
+#define DISP_CC_MDSS_MDP1_CLK					60
+#define DISP_CC_MDSS_MDP_CLK					61
+#define DISP_CC_MDSS_MDP_CLK_SRC				62
+#define DISP_CC_MDSS_MDP_LUT1_CLK				63
+#define DISP_CC_MDSS_MDP_LUT_CLK				64
+#define DISP_CC_MDSS_NON_GDSC_AHB_CLK				65
+#define DISP_CC_MDSS_PCLK0_CLK					66
+#define DISP_CC_MDSS_PCLK0_CLK_SRC				67
+#define DISP_CC_MDSS_PCLK1_CLK					68
+#define DISP_CC_MDSS_PCLK1_CLK_SRC				69
+#define DISP_CC_MDSS_RSCC_AHB_CLK				70
+#define DISP_CC_MDSS_RSCC_VSYNC_CLK				71
+#define DISP_CC_MDSS_VSYNC1_CLK					72
+#define DISP_CC_MDSS_VSYNC_CLK					73
+#define DISP_CC_MDSS_VSYNC_CLK_SRC				74
+#define DISP_CC_PLL0						75
+#define DISP_CC_PLL1						76
+#define DISP_CC_SLEEP_CLK					77
+#define DISP_CC_SLEEP_CLK_SRC					78
+#define DISP_CC_XO_CLK						79
+#define DISP_CC_XO_CLK_SRC					80
+
+/* DISP_CC resets */
+#define DISP_CC_MDSS_CORE_BCR					0
+#define DISP_CC_MDSS_CORE_INT2_BCR				1
+#define DISP_CC_MDSS_RSCC_BCR					2
+
+/* DISP_CC GDSCR */
+#define MDSS_GDSC						0
+#define MDSS_INT2_GDSC						1
+
+#endif