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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-25 14:12:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-25 14:12:36 -0700
commitb326272010b6656210193d7ab93fa184087e8ee1 (patch)
tree5211f00b1183f3f23492234f8c7387e50e4a57df
parent1bc276775d93faf42a3bb1c684cdb838ded8be56 (diff)
parent1aa55ca9b14af6cfd987ce4fdaf548f7067a5d07 (diff)
download96b-common-b326272010b6656210193d7ab93fa184087e8ee1.tar.gz
Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late updates from Olof Johansson: "A couple of late-merged changes that would be useful to get in this merge window: - Driver support for reset of audio complex on Meson platforms. The audio driver went in this merge window, and these changes have been in -next for a while (just not in our tree). - Power management fixes for IOMMU on Rockchip platforms, getting closer to kexec working on them, including Chromebooks. - Another pass updating "arm,psci" -> "psci" for some properties that have snuck in since last time it was done" * tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: iommu/rockchip: Move irq request past pm_runtime_enable iommu/rockchip: Handle errors returned from PM framework arm64: rockchip: Force CONFIG_PM on Rockchip systems ARM: rockchip: Force CONFIG_PM on Rockchip systems arm64: dts: Fix various entry-method properties to reflect documentation reset: imx7: Fix always writing bits as 0 reset: meson: add meson audio arb driver reset: meson: add dt-bindings for meson-axg audio arb
-rw-r--r--Documentation/devicetree/bindings/arm/cpu-capacity.txt2
-rw-r--r--Documentation/devicetree/bindings/arm/idle-states.txt4
-rw-r--r--Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.txt21
-rw-r--r--arch/arm/mach-rockchip/Kconfig1
-rw-r--r--arch/arm64/Kconfig.platforms1
-rw-r--r--arch/arm64/boot/dts/arm/juno-r1.dts2
-rw-r--r--arch/arm64/boot/dts/arm/juno-r2.dts2
-rw-r--r--arch/arm64/boot/dts/arm/juno.dts2
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi2
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi2
-rw-r--r--arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi2
-rw-r--r--arch/arm64/boot/dts/mediatek/mt2712e.dtsi2
-rw-r--r--arch/arm64/boot/dts/sprd/sc9860.dtsi2
-rw-r--r--arch/arm64/boot/dts/xilinx/zynqmp.dtsi2
-rw-r--r--drivers/iommu/rockchip-iommu.c45
-rw-r--r--drivers/reset/Kconfig7
-rw-r--r--drivers/reset/Makefile1
-rw-r--r--drivers/reset/reset-imx7.c2
-rw-r--r--drivers/reset/reset-meson-audio-arb.c168
-rw-r--r--include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h17
20 files changed, 257 insertions, 30 deletions
diff --git a/Documentation/devicetree/bindings/arm/cpu-capacity.txt b/Documentation/devicetree/bindings/arm/cpu-capacity.txt
index 7809fbe0cdb7..9b5685a1d15d 100644
--- a/Documentation/devicetree/bindings/arm/cpu-capacity.txt
+++ b/Documentation/devicetree/bindings/arm/cpu-capacity.txt
@@ -94,7 +94,7 @@ cpus {
};
idle-states {
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_SLEEP_0: cpu-sleep-0 {
compatible = "arm,idle-state";
diff --git a/Documentation/devicetree/bindings/arm/idle-states.txt b/Documentation/devicetree/bindings/arm/idle-states.txt
index 7a591333f2b1..2c73847499ab 100644
--- a/Documentation/devicetree/bindings/arm/idle-states.txt
+++ b/Documentation/devicetree/bindings/arm/idle-states.txt
@@ -237,8 +237,8 @@ processor idle states, defined as device tree nodes, are listed.
Value type: <stringlist>
Usage and definition depend on ARM architecture version.
# On ARM v8 64-bit this property is required and must
- be one of:
- - "psci" (see bindings in [2])
+ be:
+ - "psci"
# On ARM 32-bit systems this property is optional
The nodes describing the idle states (state) can only be defined within the
diff --git a/Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.txt b/Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.txt
new file mode 100644
index 000000000000..26e542eb96df
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.txt
@@ -0,0 +1,21 @@
+* Amlogic audio memory arbiter controller
+
+The Amlogic Audio ARB is a simple device which enables or
+disables the access of Audio FIFOs to DDR on AXG based SoC.
+
+Required properties:
+- compatible: 'amlogic,meson-axg-audio-arb'
+- reg: physical base address of the controller and length of memory
+ mapped region.
+- clocks: phandle to the fifo peripheral clock provided by the audio
+ clock controller.
+- #reset-cells: must be 1.
+
+Example on the A113 SoC:
+
+arb: reset-controller@280 {
+ compatible = "amlogic,meson-axg-audio-arb";
+ reg = <0x0 0x280 0x0 0x4>;
+ #reset-cells = <1>;
+ clocks = <&clkc_audio AUD_CLKID_DDR_ARB>;
+};
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index fafd3d7f9f8c..8ca926522026 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -17,6 +17,7 @@ config ARCH_ROCKCHIP
select ARM_GLOBAL_TIMER
select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
select ZONE_DMA if ARM_LPAE
+ select PM
help
Support for Rockchip's Cortex-A9 Single-to-Quad-Core-SoCs
containing the RK2928, RK30xx and RK31xx series.
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 35f2e6e1be23..393d2b524284 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -158,6 +158,7 @@ config ARCH_ROCKCHIP
select GPIOLIB
select PINCTRL
select PINCTRL_ROCKCHIP
+ select PM
select ROCKCHIP_TIMER
help
This enables support for the ARMv8 based Rockchip chipsets,
diff --git a/arch/arm64/boot/dts/arm/juno-r1.dts b/arch/arm64/boot/dts/arm/juno-r1.dts
index 2c5db03f226c..b2b7ced633cf 100644
--- a/arch/arm64/boot/dts/arm/juno-r1.dts
+++ b/arch/arm64/boot/dts/arm/juno-r1.dts
@@ -63,7 +63,7 @@
};
idle-states {
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_SLEEP_0: cpu-sleep-0 {
compatible = "arm,idle-state";
diff --git a/arch/arm64/boot/dts/arm/juno-r2.dts b/arch/arm64/boot/dts/arm/juno-r2.dts
index c51950f4a1b6..ab77adb4f3c2 100644
--- a/arch/arm64/boot/dts/arm/juno-r2.dts
+++ b/arch/arm64/boot/dts/arm/juno-r2.dts
@@ -63,7 +63,7 @@
};
idle-states {
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_SLEEP_0: cpu-sleep-0 {
compatible = "arm,idle-state";
diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
index 2b2bf39c30ef..1fb5c5a0f32e 100644
--- a/arch/arm64/boot/dts/arm/juno.dts
+++ b/arch/arm64/boot/dts/arm/juno.dts
@@ -62,7 +62,7 @@
};
idle-states {
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_SLEEP_0: cpu-sleep-0 {
compatible = "arm,idle-state";
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
index 4c558a2133e2..68ac78c4564d 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
@@ -43,7 +43,7 @@
* PSCI node is not added default, U-boot will add missing
* parts if it determines to use PSCI.
*/
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_PH20: cpu-ph20 {
compatible = "arm,idle-state";
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
index b9f5d2ff4ff2..7881e3d81a9a 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
@@ -87,7 +87,7 @@
* PSCI node is not added default, U-boot will add missing
* parts if it determines to use PSCI.
*/
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_PH20: cpu-ph20 {
compatible = "arm,idle-state";
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index 65ce1c3cb568..ef83786b8b90 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -83,7 +83,7 @@
* PSCI node is not added default, U-boot will add missing
* parts if it determines to use PSCI.
*/
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_PH20: cpu-ph20 {
compatible = "arm,idle-state";
diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
index 6d8532af8346..75cc0f7cc088 100644
--- a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
@@ -119,7 +119,7 @@
};
idle-states {
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_SLEEP_0: cpu-sleep-0 {
compatible = "arm,idle-state";
diff --git a/arch/arm64/boot/dts/sprd/sc9860.dtsi b/arch/arm64/boot/dts/sprd/sc9860.dtsi
index 3f5160d2f130..48f5928ed45c 100644
--- a/arch/arm64/boot/dts/sprd/sc9860.dtsi
+++ b/arch/arm64/boot/dts/sprd/sc9860.dtsi
@@ -114,7 +114,7 @@
};
idle-states{
- entry-method = "arm,psci";
+ entry-method = "psci";
CORE_PD: core_pd {
compatible = "arm,idle-state";
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index a091e6f03014..29ce23422acf 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -58,7 +58,7 @@
};
idle-states {
- entry-method = "arm,psci";
+ entry-method = "psci";
CPU_SLEEP_0: cpu-sleep-0 {
compatible = "arm,idle-state";
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index d393160e3e38..258115b10fa9 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -521,10 +521,11 @@ static irqreturn_t rk_iommu_irq(int irq, void *dev_id)
u32 int_status;
dma_addr_t iova;
irqreturn_t ret = IRQ_NONE;
- int i;
+ int i, err;
- if (WARN_ON(!pm_runtime_get_if_in_use(iommu->dev)))
- return 0;
+ err = pm_runtime_get_if_in_use(iommu->dev);
+ if (WARN_ON_ONCE(err <= 0))
+ return ret;
if (WARN_ON(clk_bulk_enable(iommu->num_clocks, iommu->clocks)))
goto out;
@@ -620,11 +621,15 @@ static void rk_iommu_zap_iova(struct rk_iommu_domain *rk_domain,
spin_lock_irqsave(&rk_domain->iommus_lock, flags);
list_for_each(pos, &rk_domain->iommus) {
struct rk_iommu *iommu;
+ int ret;
iommu = list_entry(pos, struct rk_iommu, node);
/* Only zap TLBs of IOMMUs that are powered on. */
- if (pm_runtime_get_if_in_use(iommu->dev)) {
+ ret = pm_runtime_get_if_in_use(iommu->dev);
+ if (WARN_ON_ONCE(ret < 0))
+ continue;
+ if (ret) {
WARN_ON(clk_bulk_enable(iommu->num_clocks,
iommu->clocks));
rk_iommu_zap_lines(iommu, iova, size);
@@ -891,6 +896,7 @@ static void rk_iommu_detach_device(struct iommu_domain *domain,
struct rk_iommu *iommu;
struct rk_iommu_domain *rk_domain = to_rk_domain(domain);
unsigned long flags;
+ int ret;
/* Allow 'virtual devices' (eg drm) to detach from domain */
iommu = rk_iommu_from_dev(dev);
@@ -909,7 +915,9 @@ static void rk_iommu_detach_device(struct iommu_domain *domain,
list_del_init(&iommu->node);
spin_unlock_irqrestore(&rk_domain->iommus_lock, flags);
- if (pm_runtime_get_if_in_use(iommu->dev)) {
+ ret = pm_runtime_get_if_in_use(iommu->dev);
+ WARN_ON_ONCE(ret < 0);
+ if (ret > 0) {
rk_iommu_disable(iommu);
pm_runtime_put(iommu->dev);
}
@@ -946,7 +954,8 @@ static int rk_iommu_attach_device(struct iommu_domain *domain,
list_add_tail(&iommu->node, &rk_domain->iommus);
spin_unlock_irqrestore(&rk_domain->iommus_lock, flags);
- if (!pm_runtime_get_if_in_use(iommu->dev))
+ ret = pm_runtime_get_if_in_use(iommu->dev);
+ if (!ret || WARN_ON_ONCE(ret < 0))
return 0;
ret = rk_iommu_enable(iommu);
@@ -1151,17 +1160,6 @@ static int rk_iommu_probe(struct platform_device *pdev)
if (iommu->num_mmu == 0)
return PTR_ERR(iommu->bases[0]);
- i = 0;
- while ((irq = platform_get_irq(pdev, i++)) != -ENXIO) {
- if (irq < 0)
- return irq;
-
- err = devm_request_irq(iommu->dev, irq, rk_iommu_irq,
- IRQF_SHARED, dev_name(dev), iommu);
- if (err)
- return err;
- }
-
iommu->reset_disabled = device_property_read_bool(dev,
"rockchip,disable-mmu-reset");
@@ -1218,6 +1216,19 @@ static int rk_iommu_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
+ i = 0;
+ while ((irq = platform_get_irq(pdev, i++)) != -ENXIO) {
+ if (irq < 0)
+ return irq;
+
+ err = devm_request_irq(iommu->dev, irq, rk_iommu_irq,
+ IRQF_SHARED, dev_name(dev), iommu);
+ if (err) {
+ pm_runtime_disable(dev);
+ goto err_remove_sysfs;
+ }
+ }
+
return 0;
err_remove_sysfs:
iommu_device_sysfs_remove(&iommu->iommu);
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index a70262cb7e56..13d28fdbdbb5 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -73,6 +73,13 @@ config RESET_MESON
help
This enables the reset driver for Amlogic Meson SoCs.
+config RESET_MESON_AUDIO_ARB
+ tristate "Meson Audio Memory Arbiter Reset Driver"
+ depends on ARCH_MESON || COMPILE_TEST
+ help
+ This enables the reset driver for Audio Memory Arbiter of
+ Amlogic's A113 based SoCs
+
config RESET_OXNAS
bool
diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile
index 0676b6b1976f..4243c38228e2 100644
--- a/drivers/reset/Makefile
+++ b/drivers/reset/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_RESET_IMX7) += reset-imx7.o
obj-$(CONFIG_RESET_LANTIQ) += reset-lantiq.o
obj-$(CONFIG_RESET_LPC18XX) += reset-lpc18xx.o
obj-$(CONFIG_RESET_MESON) += reset-meson.o
+obj-$(CONFIG_RESET_MESON_AUDIO_ARB) += reset-meson-audio-arb.o
obj-$(CONFIG_RESET_OXNAS) += reset-oxnas.o
obj-$(CONFIG_RESET_PISTACHIO) += reset-pistachio.o
obj-$(CONFIG_RESET_QCOM_AOSS) += reset-qcom-aoss.o
diff --git a/drivers/reset/reset-imx7.c b/drivers/reset/reset-imx7.c
index 14bc78d28707..97d9f08271c5 100644
--- a/drivers/reset/reset-imx7.c
+++ b/drivers/reset/reset-imx7.c
@@ -81,7 +81,7 @@ static int imx7_reset_set(struct reset_controller_dev *rcdev,
{
struct imx7_src *imx7src = to_imx7_src(rcdev);
const struct imx7_src_signal *signal = &imx7_src_signals[id];
- unsigned int value = 0;
+ unsigned int value = assert ? signal->bit : 0;
switch (id) {
case IMX7_RESET_PCIEPHY:
diff --git a/drivers/reset/reset-meson-audio-arb.c b/drivers/reset/reset-meson-audio-arb.c
new file mode 100644
index 000000000000..91751617b37a
--- /dev/null
+++ b/drivers/reset/reset-meson-audio-arb.c
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+// Copyright (c) 2018 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/reset-controller.h>
+#include <linux/spinlock.h>
+
+#include <dt-bindings/reset/amlogic,meson-axg-audio-arb.h>
+
+struct meson_audio_arb_data {
+ struct reset_controller_dev rstc;
+ void __iomem *regs;
+ struct clk *clk;
+ const unsigned int *reset_bits;
+ spinlock_t lock;
+};
+
+#define ARB_GENERAL_BIT 31
+
+static const unsigned int axg_audio_arb_reset_bits[] = {
+ [AXG_ARB_TODDR_A] = 0,
+ [AXG_ARB_TODDR_B] = 1,
+ [AXG_ARB_TODDR_C] = 2,
+ [AXG_ARB_FRDDR_A] = 4,
+ [AXG_ARB_FRDDR_B] = 5,
+ [AXG_ARB_FRDDR_C] = 6,
+};
+
+static int meson_audio_arb_update(struct reset_controller_dev *rcdev,
+ unsigned long id, bool assert)
+{
+ u32 val;
+ struct meson_audio_arb_data *arb =
+ container_of(rcdev, struct meson_audio_arb_data, rstc);
+
+ spin_lock(&arb->lock);
+ val = readl(arb->regs);
+
+ if (assert)
+ val &= ~BIT(arb->reset_bits[id]);
+ else
+ val |= BIT(arb->reset_bits[id]);
+
+ writel(val, arb->regs);
+ spin_unlock(&arb->lock);
+
+ return 0;
+}
+
+static int meson_audio_arb_status(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ u32 val;
+ struct meson_audio_arb_data *arb =
+ container_of(rcdev, struct meson_audio_arb_data, rstc);
+
+ val = readl(arb->regs);
+
+ return !(val & BIT(arb->reset_bits[id]));
+}
+
+static int meson_audio_arb_assert(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ return meson_audio_arb_update(rcdev, id, true);
+}
+
+static int meson_audio_arb_deassert(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ return meson_audio_arb_update(rcdev, id, false);
+}
+
+static const struct reset_control_ops meson_audio_arb_rstc_ops = {
+ .assert = meson_audio_arb_assert,
+ .deassert = meson_audio_arb_deassert,
+ .status = meson_audio_arb_status,
+};
+
+static const struct of_device_id meson_audio_arb_of_match[] = {
+ { .compatible = "amlogic,meson-axg-audio-arb", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, meson_audio_arb_of_match);
+
+static int meson_audio_arb_remove(struct platform_device *pdev)
+{
+ struct meson_audio_arb_data *arb = platform_get_drvdata(pdev);
+
+ /* Disable all access */
+ spin_lock(&arb->lock);
+ writel(0, arb->regs);
+ spin_unlock(&arb->lock);
+
+ clk_disable_unprepare(arb->clk);
+
+ return 0;
+}
+
+static int meson_audio_arb_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct meson_audio_arb_data *arb;
+ struct resource *res;
+ int ret;
+
+ arb = devm_kzalloc(dev, sizeof(*arb), GFP_KERNEL);
+ if (!arb)
+ return -ENOMEM;
+ platform_set_drvdata(pdev, arb);
+
+ arb->clk = devm_clk_get(dev, NULL);
+ if (IS_ERR(arb->clk)) {
+ if (PTR_ERR(arb->clk) != -EPROBE_DEFER)
+ dev_err(dev, "failed to get clock\n");
+ return PTR_ERR(arb->clk);
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ arb->regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(arb->regs))
+ return PTR_ERR(arb->regs);
+
+ spin_lock_init(&arb->lock);
+ arb->reset_bits = axg_audio_arb_reset_bits;
+ arb->rstc.nr_resets = ARRAY_SIZE(axg_audio_arb_reset_bits);
+ arb->rstc.ops = &meson_audio_arb_rstc_ops;
+ arb->rstc.of_node = dev->of_node;
+
+ /*
+ * Enable general :
+ * In the initial state, all memory interfaces are disabled
+ * and the general bit is on
+ */
+ ret = clk_prepare_enable(arb->clk);
+ if (ret) {
+ dev_err(dev, "failed to enable arb clock\n");
+ return ret;
+ }
+ writel(BIT(ARB_GENERAL_BIT), arb->regs);
+
+ /* Register reset controller */
+ ret = devm_reset_controller_register(dev, &arb->rstc);
+ if (ret) {
+ dev_err(dev, "failed to register arb reset controller\n");
+ meson_audio_arb_remove(pdev);
+ }
+
+ return ret;
+}
+
+static struct platform_driver meson_audio_arb_pdrv = {
+ .probe = meson_audio_arb_probe,
+ .remove = meson_audio_arb_remove,
+ .driver = {
+ .name = "meson-audio-arb-reset",
+ .of_match_table = meson_audio_arb_of_match,
+ },
+};
+module_platform_driver(meson_audio_arb_pdrv);
+
+MODULE_DESCRIPTION("Amlogic A113 Audio Memory Arbiter");
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h b/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h
new file mode 100644
index 000000000000..05c36367875c
--- /dev/null
+++ b/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ *
+ * Copyright (c) 2018 Baylibre SAS.
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ */
+
+#ifndef _DT_BINDINGS_AMLOGIC_MESON_AXG_AUDIO_ARB_H
+#define _DT_BINDINGS_AMLOGIC_MESON_AXG_AUDIO_ARB_H
+
+#define AXG_ARB_TODDR_A 0
+#define AXG_ARB_TODDR_B 1
+#define AXG_ARB_TODDR_C 2
+#define AXG_ARB_FRDDR_A 3
+#define AXG_ARB_FRDDR_B 4
+#define AXG_ARB_FRDDR_C 5
+
+#endif /* _DT_BINDINGS_AMLOGIC_MESON_AXG_AUDIO_ARB_H */