diff mbox series

[v5,1/2] dt-bindings: clock: Introduce QCOM LPASS clock bindings

Message ID 1537266338-18661-2-git-send-email-tdas@codeaurora.org (mailing list archive)
State Accepted, archived
Headers show
Series Add support for LPASS clock controller for SDM845 | expand

Commit Message

Taniya Das Sept. 18, 2018, 10:25 a.m. UTC 
Add device tree bindings for Low Power Audio subsystem clock controller for
Qualcomm Technology Inc's SDM845 SoCs.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
---
 .../devicetree/bindings/clock/qcom,gcc.txt         |  2 ++
 .../devicetree/bindings/clock/qcom,lpasscc.txt     | 35 ++++++++++++++++++++++
 include/dt-bindings/clock/qcom,gcc-sdm845.h        |  2 ++
 include/dt-bindings/clock/qcom,lpass-sdm845.h      | 16 ++++++++++
 4 files changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
 create mode 100644 include/dt-bindings/clock/qcom,lpass-sdm845.h

Comments

Rob Herring (Arm) Sept. 26, 2018, 10:47 p.m. UTC | #1 
On Tue, 18 Sep 2018 15:55:37 +0530, Taniya Das wrote:
> Add device tree bindings for Low Power Audio subsystem clock controller for
> Qualcomm Technology Inc's SDM845 SoCs.
> 
> Signed-off-by: Taniya Das <tdas@codeaurora.org>
> ---
>  .../devicetree/bindings/clock/qcom,gcc.txt         |  2 ++
>  .../devicetree/bindings/clock/qcom,lpasscc.txt     | 35 ++++++++++++++++++++++
>  include/dt-bindings/clock/qcom,gcc-sdm845.h        |  2 ++
>  include/dt-bindings/clock/qcom,lpass-sdm845.h      | 16 ++++++++++
>  4 files changed, 55 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
>  create mode 100644 include/dt-bindings/clock/qcom,lpass-sdm845.h
> 

Reviewed-by: Rob Herring <robh@kernel.org>
Stephen Boyd Sept. 28, 2018, 6:52 p.m. UTC | #2 
Quoting Taniya Das (2018-09-18 03:25:37)
> Add device tree bindings for Low Power Audio subsystem clock controller for
> Qualcomm Technology Inc's SDM845 SoCs.
> 
> Signed-off-by: Taniya Das <tdas@codeaurora.org>
> ---

Applied to clk-next
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.txt b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
index 664ea1f..b3ff6e8 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc.txt
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
@@ -32,6 +32,8 @@  be part of GCC and hence the TSENS properties can also be
 part of the GCC/clock-controller node.
 For more details on the TSENS properties please refer
 Documentation/devicetree/bindings/thermal/qcom-tsens.txt
+- qcom,lpass-protected : Indicate that the LPASS clock branches within GCC are
+			 unusable due to firmware access control restrictions.
 
 Example:
 	clock-controller@900000 {
diff --git a/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt b/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
new file mode 100644
index 0000000..6a718c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
@@ -0,0 +1,35 @@ 
+Qualcomm LPASS Clock Controller Binding
+-----------------------------------------------
+
+Required properties :
+- compatible		: shall contain "qcom,sdm845-lpasscc"
+- #clock-cells		: from common clock binding, shall contain 1.
+- reg			: shall contain base register address and size,
+			  in the order
+			Index-0 maps to LPASS_CC register region
+			Index-1 maps to LPASS_QDSP6SS register region
+
+Optional properties :
+- reg-names	: register names of LPASS domain
+		 "cc", "qdsp6ss".
+
+Example:
+
+The below node has to be defined in the cases where the LPASS peripheral loader
+would bring the subsystem out of reset.
+
+	lpasscc: clock-controller@17014000 {
+		compatible = "qcom,sdm845-lpasscc";
+		reg = <0x17014000 0x1f004>, <0x17300000 0x200>;
+		reg-names = "cc", "qdsp6ss";
+		#clock-cells = <1>;
+	};
+
+	gcc: clock-controller@100000 {
+		reg = <0x100000 0x4000>;
+		compatible = "qcom,gcc-sdm845";
+		qcom,lpass-protected;
+		#clock-cells = <1>;
+		#reset-cells = <1>;
+		#power-domain-cells = <1>;
+	};
diff --git a/include/dt-bindings/clock/qcom,gcc-sdm845.h b/include/dt-bindings/clock/qcom,gcc-sdm845.h
index b8eae5a..968fa65 100644
--- a/include/dt-bindings/clock/qcom,gcc-sdm845.h
+++ b/include/dt-bindings/clock/qcom,gcc-sdm845.h
@@ -197,6 +197,8 @@ 
 #define GCC_QSPI_CORE_CLK_SRC					187
 #define GCC_QSPI_CORE_CLK					188
 #define GCC_QSPI_CNOC_PERIPH_AHB_CLK				189
+#define GCC_LPASS_Q6_AXI_CLK					190
+#define GCC_LPASS_SWAY_CLK					191
 
 /* GCC Resets */
 #define GCC_MMSS_BCR						0
diff --git a/include/dt-bindings/clock/qcom,lpass-sdm845.h b/include/dt-bindings/clock/qcom,lpass-sdm845.h
new file mode 100644
index 0000000..015968e
--- /dev/null
+++ b/include/dt-bindings/clock/qcom,lpass-sdm845.h
@@ -0,0 +1,16 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_SDM_LPASS_SDM845_H
+#define _DT_BINDINGS_CLK_SDM_LPASS_SDM845_H
+
+#define LPASS_AUDIO_WRAPPER_AON_CLK			0
+#define LPASS_Q6SS_AHBM_AON_CLK				1
+#define LPASS_Q6SS_AHBS_AON_CLK				2
+#define LPASS_QDSP6SS_XO_CLK				3
+#define LPASS_QDSP6SS_SLEEP_CLK				4
+#define LPASS_QDSP6SS_CORE_CLK				5
+
+#endif