From: Taniya Das <tdas@codeaurora.org>
To: Stephen Boyd <sboyd@kernel.org>,
Michael Turquette <mturquette@baylibre.com>
Cc: Andy Gross <andy.gross@linaro.org>,
David Brown <david.brown@linaro.org>,
Rajendra Nayak <rnayak@codeaurora.org>,
linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org,
linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, robh@kernel.org,
Taniya Das <tdas@codeaurora.org>
Subject: [PATCH 1/2] dt-bindings: clock: Introduce QCOM LPASS clock bindings
Date: Tue, 11 Sep 2018 22:30:05 +0530 [thread overview]
Message-ID: <1536685206-12239-2-git-send-email-tdas@codeaurora.org> (raw)
In-Reply-To: <1536685206-12239-1-git-send-email-tdas@codeaurora.org>
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 | 31 ++++++++++++++++++++++
include/dt-bindings/clock/qcom,gcc-sdm845.h | 2 ++
include/dt-bindings/clock/qcom,lpass-sdm845.h | 16 +++++++++++
4 files changed, 51 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
create mode 100644 include/dt-bindings/clock/qcom,lpass-sdm845.h
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..d312957
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
@@ -0,0 +1,31 @@
+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
+ "lpass_cc", "lpass_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 {
+ compatible = "qcom,sdm845-lpasscc";
+ reg = <0x17014000 0x1f004>, <0x17300000 0x200>;
+ reg-names = "lpass_cc", "lpass_qdsp6ss";
+ #clock-cells = <1>;
+ };
+
+ gcc: clock-controller@100000 {
+ compatible = "qcom,gcc-sdm845";
+ qcom,lpass-protected;
+ };
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
--
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the Linux Foundation.
next prev parent reply other threads:[~2018-09-11 17:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-11 17:00 [PATCH v4 0/2] Add support for LPASS clock controller for SDM845 Taniya Das
2018-09-11 17:00 ` Taniya Das [this message]
[not found] ` <20180917031811.GA11141@bogus>
2018-09-18 10:25 ` [PATCH 1/2] dt-bindings: clock: Introduce QCOM LPASS clock bindings Taniya Das
2018-09-11 17:00 ` [PATCH 2/2] clk: qcom: Add lpass clock controller driver for SDM845 Taniya Das
-- strict thread matches above, loose matches on Subject: below --
2018-06-14 7:39 [PATCH 0/2] Add support for LPASS clock controller " Taniya Das
2018-06-14 7:39 ` [PATCH 1/2] dt-bindings: clock: Introduce QCOM LPASS clock bindings Taniya Das
2018-06-26 19:53 ` Rob Herring
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