* [PATCH v2 0/3] Add support for hwspinlock on A64 SoC
@ 2020-02-11 12:26 Nikolay Borisov
2020-02-11 12:26 ` [PATCH v2 1/3] hwspinlock: sunxi: Implement support for Allwinner's " Nikolay Borisov
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: Nikolay Borisov @ 2020-02-11 12:26 UTC (permalink / raw)
To: mripard, bjorn.andersson
Cc: devicetree, wens, robh+dt, linux-arm-kernel, Nikolay Borisov
Here's v2 of hwspinlock support in A64 SoC. Main changes:
* Rewrote dt bindings in yaml
* Re-arranged hwspinlock node in dts to follow ascending address order
* Sorted includes alphabetically
* Minor style changes
* Use GENMASK/FIELD_GET to query number of locks from mmio register
* Separate hwspinlock_device from sun50i_hwspinlock. This enables to utilize
devm_add_action_or_reset, which results in cleaner error handling in the probe
function.
* Switched to device managed resources where applicable.
This was tested on a pine64 board. I loadeded/unloaded the driver checking the
state of clock/reset/sysstatus registers as well as trying lock/unlock operations
(using the devmem busybox utility).
Nikolay Borisov (3):
hwspinlock: sunxi: Implement support for Allwinner's A64 SoC
arm64: dts: allwinner: a64: Add hwspinlock node
dt-bindings: hwlock: Document A64 hwspinlock bindings
.../allwinner,sun50i-a64-hwspinlock.yaml | 47 +++++
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 9 +
drivers/hwspinlock/Kconfig | 9 +
drivers/hwspinlock/Makefile | 1 +
drivers/hwspinlock/sun50i_hwspinlock.c | 163 ++++++++++++++++++
5 files changed, 229 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml
create mode 100644 drivers/hwspinlock/sun50i_hwspinlock.c
--
2.17.1
^ permalink raw reply [flat|nested] 8+ messages in thread* [PATCH v2 1/3] hwspinlock: sunxi: Implement support for Allwinner's A64 SoC 2020-02-11 12:26 [PATCH v2 0/3] Add support for hwspinlock on A64 SoC Nikolay Borisov @ 2020-02-11 12:26 ` Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 2/3] arm64: dts: allwinner: a64: Add hwspinlock node Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings Nikolay Borisov 2 siblings, 0 replies; 8+ messages in thread From: Nikolay Borisov @ 2020-02-11 12:26 UTC (permalink / raw) To: mripard, bjorn.andersson Cc: devicetree, wens, robh+dt, linux-arm-kernel, Nikolay Borisov Based on the datasheet this implements support for the hwspinlock IP block. Signed-off-by: Nikolay Borisov <nborisov@suse.com> --- drivers/hwspinlock/Kconfig | 9 ++ drivers/hwspinlock/Makefile | 1 + drivers/hwspinlock/sun50i_hwspinlock.c | 163 +++++++++++++++++++++++++ 3 files changed, 173 insertions(+) create mode 100644 drivers/hwspinlock/sun50i_hwspinlock.c diff --git a/drivers/hwspinlock/Kconfig b/drivers/hwspinlock/Kconfig index 37740e992cfa..aff39bad3e90 100644 --- a/drivers/hwspinlock/Kconfig +++ b/drivers/hwspinlock/Kconfig @@ -68,3 +68,12 @@ config HSEM_U8500 SoC. If unsure, say N. + +config HWSPINLOCK_SUN50I + tristate "Allwinner Hardware Spinlock device" + depends on ARCH_SUNXI + depends on HWSPINLOCK + help + Say y here to support the SUNXI Hardware Spinlock device. + + If unsure, say N. diff --git a/drivers/hwspinlock/Makefile b/drivers/hwspinlock/Makefile index ed053e3f02be..ebabe5c7b7ef 100644 --- a/drivers/hwspinlock/Makefile +++ b/drivers/hwspinlock/Makefile @@ -8,5 +8,6 @@ obj-$(CONFIG_HWSPINLOCK_OMAP) += omap_hwspinlock.o obj-$(CONFIG_HWSPINLOCK_QCOM) += qcom_hwspinlock.o obj-$(CONFIG_HWSPINLOCK_SIRF) += sirf_hwspinlock.o obj-$(CONFIG_HWSPINLOCK_SPRD) += sprd_hwspinlock.o +obj-$(CONFIG_HWSPINLOCK_SUN50I) += sun50i_hwspinlock.o obj-$(CONFIG_HWSPINLOCK_STM32) += stm32_hwspinlock.o obj-$(CONFIG_HSEM_U8500) += u8500_hsem.o diff --git a/drivers/hwspinlock/sun50i_hwspinlock.c b/drivers/hwspinlock/sun50i_hwspinlock.c new file mode 100644 index 000000000000..2b54c0a0148d --- /dev/null +++ b/drivers/hwspinlock/sun50i_hwspinlock.c @@ -0,0 +1,163 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Author: Nikolay Borisov <nborisov@suse.com> */ + +#include <linux/bitfield.h> +#include <linux/bits.h> +#include <linux/clk.h> +#include <linux/hwspinlock.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/reset.h> + +#include "hwspinlock_internal.h" + +/* Bits containing number of locks in SPINLOCK_SYSSTATUS_REG */ +#define SPINLOCK_LOCKS_NUM GENMASK(29, 28) + +/* Spinlock register offsets */ +#define SPINLOCK_ID(X) (0x100 + 0x4 * X) + +/* Possible values of SPINLOCK_LOCK_REG */ +#define SPINLOCK_NOTTAKEN (0) /* free */ +#define SPINLOCK_TAKEN (1) /* locked */ + +struct sun50i_hwspinlock { + struct clk *clk; + struct reset_control *reset; + struct hwspinlock_device *bank; +}; + +static int sun50i_hwspinlock_trylock(struct hwspinlock *lock) +{ + void __iomem *lock_addr = lock->priv; + + /* attempt to acquire the lock by reading its value */ + return readl(lock_addr) == SPINLOCK_NOTTAKEN; +} + +static void sun50i_hwspinlock_unlock(struct hwspinlock *lock) +{ + void __iomem *lock_addr = lock->priv; + + /* release the lock by writing 0 to it */ + writel(SPINLOCK_NOTTAKEN, lock_addr); +} + +static const struct hwspinlock_ops sun50i_hwspinlock_ops = { + .trylock = sun50i_hwspinlock_trylock, + .unlock = sun50i_hwspinlock_unlock, +}; + +static int sun50i_get_num_locks(void __iomem *io_base) +{ + u32 i = readl(io_base); + i = FIELD_GET(SPINLOCK_LOCKS_NUM, i); + + switch (i) { + case 0x1: return 32; + case 0x2: return 64; + case 0x3: return 128; + case 0x4: return 256; + } + + return 0; +} + +static int sun50i_hwspinlock_probe(struct platform_device *pdev) +{ + struct sun50i_hwspinlock *hw; + void __iomem *io_base; + struct clk *clk; + struct reset_control *reset; + int i, ret, num_locks; + + io_base = devm_platform_ioremap_resource(&pdev->dev, 0); + if (IS_ERR(io_base)) + return PTR_ERR(io_base); + + hw = devm_kzalloc(&pdev->dev, sizeof(*hw), GFP_KERNEL); + if (!hw) + return -ENOMEM; + + hw->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(hw->clk)) + return PTR_ERR(hw->clk); + + ret = clk_prepare_enable(hw->clk); + if (ret) { + dev_err(&pdev->dev, "Cannot enable clock\n"); + return ret; + } + + /* Disable soft reset */ + hw->reset= devm_reset_control_get_exclusive(&pdev->dev, NULL); + if (IS_ERR(hw->reset)) { + clk_disable_unprepare(hw->clk); + return PTR_ERR(hw->reset); + } + reset_control_deassert(hw->reset); + + ret = devm_add_action_or_reset(&pdev->dev, sun50i_hwpinlock_disable, + hw); + if (ret) { + dev_err(&pdev->dev, "Failed to add hwspinlock disable action\n"); + return ret; + } + + num_locks = sun50i_get_num_locks(io_base); + if (!num_locks) { + dev_err(&pdev->dev, "Unrecognised sun50i hwspinlock device\n"); + ret = -EINVAL; + goto out_reset; + } + + hw->bank = devm_kzalloc(&pdev->dev, + struct_size(hw->bank, lock, num_locks), + GFP_KERNEL); + if (!hw) { + ret = -ENOMEM; + goto out_reset; + } + + for (i = 0; i < num_locks; i++) + hw->bank.lock[i].priv = io_base + SPINLOCK_ID(i); + + platform_set_drvdata(pdev, hw); + + return devm_hwspin_lock_register(&pdev->dev, &hw->bank, + &sun50i_hwspinlock_ops, 0, num_locks); +} + +static int sun50i_hwspinlock_disable(struct platform_device *pdev) +{ + struct sun50i_hwspinlock *hw = platform_get_drvdata(pdev); + int ret; + + reset_control_assert(hw->reset); + clk_disable_unprepare(hw->clk); + + return 0; +} + +static const struct of_device_id sun50i_hwpinlock_ids[] = { + { .compatible = "allwinner,sun50i-a64-hwspinlock", }, + {}, +}; +MODULE_DEVICE_TABLE(of, sun50i_hwpinlock_ids); + +static struct platform_driver sun50i_hwspinlock_driver = { + .probe = sun50i_hwspinlock_probe, + .driver = { + .name = "sun50i_hwspinlock", + .of_match_table = sun50i_hwpinlock_ids, + }, +}; + +module_platform_driver(sun50i_hwspinlock_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Hardware spinlock driver for sun50i SoCs"); +MODULE_AUTHOR("Nikolay Borisov <nborisov@suse.com>"); -- 2.17.1 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v2 2/3] arm64: dts: allwinner: a64: Add hwspinlock node 2020-02-11 12:26 [PATCH v2 0/3] Add support for hwspinlock on A64 SoC Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 1/3] hwspinlock: sunxi: Implement support for Allwinner's " Nikolay Borisov @ 2020-02-11 12:26 ` Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings Nikolay Borisov 2 siblings, 0 replies; 8+ messages in thread From: Nikolay Borisov @ 2020-02-11 12:26 UTC (permalink / raw) To: mripard, bjorn.andersson Cc: devicetree, wens, robh+dt, linux-arm-kernel, Nikolay Borisov Add a node describing the hwspinlock on A64. Signed-off-by: Nikolay Borisov <nborisov@suse.com> --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index 27e48234f1c2..834f2f7f60bc 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -496,6 +496,15 @@ resets = <&ccu RST_BUS_CE>; }; + hwspinlock: spinlock@1c18000 { + compatible = "allwinner,sun50i-a64-hwspinlock"; + reg = <0x01c18000 0x1000>; + clocks = <&ccu CLK_BUS_SPINLOCK>; + resets = <&ccu RST_BUS_SPINLOCK>; + #hwlock-cells = <1>; + status = "ok"; + }; + usb_otg: usb@1c19000 { compatible = "allwinner,sun8i-a33-musb"; reg = <0x01c19000 0x0400>; -- 2.17.1 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v2 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings 2020-02-11 12:26 [PATCH v2 0/3] Add support for hwspinlock on A64 SoC Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 1/3] hwspinlock: sunxi: Implement support for Allwinner's " Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 2/3] arm64: dts: allwinner: a64: Add hwspinlock node Nikolay Borisov @ 2020-02-11 12:26 ` Nikolay Borisov 2020-02-12 2:00 ` Rob Herring 2020-02-12 11:54 ` [PATCH v3] " Nikolay Borisov 2 siblings, 2 replies; 8+ messages in thread From: Nikolay Borisov @ 2020-02-11 12:26 UTC (permalink / raw) To: mripard, bjorn.andersson Cc: devicetree, wens, robh+dt, linux-arm-kernel, Nikolay Borisov Add binding for the hwspinlock found on Allwinner A64 SoC. Signed-off-by: Nikolay Borisov <nborisov@suse.com> --- .../allwinner,sun50i-a64-hwspinlock.yaml | 47 +++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml diff --git a/Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml new file mode 100644 index 000000000000..46bfff2541d6 --- /dev/null +++ b/Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwlock/allwinner,sun50i-a64-hwspinlock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A64 SoC Hardware Spinlock bindings + +maintainers: + - Nikolay Borisov <nborisov@suse.com> + +properties: + "#hwlock-cells": + const: 1 + + compatible: + const: allwinner,sun50i-a64-hwspinlock + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - "#hwlock-cells" + - compatible + - reg + - clocks + - resets + +additionalProperties: false + +examples: + - | + hwspinlock@1c18000 { + compatible = "allwinner,sun50i-a64-hwspinlock"; + #hwlock-cells = <1>; + reg = <0x01c18000 0x1000>; + clocks = <&ccu CLK_BUS_SPINLOCK>; + resets = <&ccu RST_BUS_SPINLOCK>; + }; + +... -- 2.17.1 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v2 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings 2020-02-11 12:26 ` [PATCH v2 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings Nikolay Borisov @ 2020-02-12 2:00 ` Rob Herring 2020-02-12 10:45 ` Nikolay Borisov 2020-02-12 11:54 ` [PATCH v3] " Nikolay Borisov 1 sibling, 1 reply; 8+ messages in thread From: Rob Herring @ 2020-02-12 2:00 UTC (permalink / raw) To: Nikolay Borisov Cc: mripard, bjorn.andersson, devicetree, wens, robh+dt, linux-arm-kernel, Nikolay Borisov On Tue, 11 Feb 2020 14:26:24 +0200, Nikolay Borisov wrote: > Add binding for the hwspinlock found on Allwinner A64 SoC. > > Signed-off-by: Nikolay Borisov <nborisov@suse.com> > --- > .../allwinner,sun50i-a64-hwspinlock.yaml | 47 +++++++++++++++++++ > 1 file changed, 47 insertions(+) > create mode 100644 Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml > My bot found errors running 'make dt_binding_check' on your patch: Documentation/devicetree/bindings/display/simple-framebuffer.example.dts:21.16-37.11: Warning (chosen_node_is_root): /example-0/chosen: chosen node must be at root node Error: Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.example.dts:21.28-29 syntax error FATAL ERROR: Unable to parse input tree scripts/Makefile.lib:300: recipe for target 'Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.example.dt.yaml' failed make[1]: *** [Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.example.dt.yaml] Error 1 Makefile:1263: recipe for target 'dt_binding_check' failed make: *** [dt_binding_check] Error 2 See https://patchwork.ozlabs.org/patch/1236266 Please check and re-submit. ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings 2020-02-12 2:00 ` Rob Herring @ 2020-02-12 10:45 ` Nikolay Borisov 0 siblings, 0 replies; 8+ messages in thread From: Nikolay Borisov @ 2020-02-12 10:45 UTC (permalink / raw) To: Rob Herring Cc: mripard, bjorn.andersson, devicetree, wens, robh+dt, linux-arm-kernel On 12.02.20 г. 4:00 ч., Rob Herring wrote: > On Tue, 11 Feb 2020 14:26:24 +0200, Nikolay Borisov wrote: >> Add binding for the hwspinlock found on Allwinner A64 SoC. >> >> Signed-off-by: Nikolay Borisov <nborisov@suse.com> >> --- >> .../allwinner,sun50i-a64-hwspinlock.yaml | 47 +++++++++++++++++++ >> 1 file changed, 47 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml >> > > My bot found errors running 'make dt_binding_check' on your patch: > > Documentation/devicetree/bindings/display/simple-framebuffer.example.dts:21.16-37.11: Warning (chosen_node_is_root): /example-0/chosen: chosen node must be at root node > Error: Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.example.dts:21.28-29 syntax error > FATAL ERROR: Unable to parse input tree > scripts/Makefile.lib:300: recipe for target 'Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.example.dt.yaml' failed > make[1]: *** [Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.example.dt.yaml] Error 1 > Makefile:1263: recipe for target 'dt_binding_check' failed > make: *** [dt_binding_check] Error 2 > > See https://patchwork.ozlabs.org/patch/1236266 > Please check and re-submit. > I'm not able to build this schema at all: make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- allmodconfig make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml This results in a allwinner,sun50i-a64-hwspinlock.example.dts file and: make[1]: *** No rule to make target 'Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.example.dt.yaml', needed by '__build'. Stop. Makefile:1263: recipe for target 'dt_binding_check' failed ^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH v3] dt-bindings: hwlock: Document A64 hwspinlock bindings 2020-02-11 12:26 ` [PATCH v2 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings Nikolay Borisov 2020-02-12 2:00 ` Rob Herring @ 2020-02-12 11:54 ` Nikolay Borisov 2020-02-18 23:05 ` Rob Herring 1 sibling, 1 reply; 8+ messages in thread From: Nikolay Borisov @ 2020-02-12 11:54 UTC (permalink / raw) To: mripard, bjorn.andersson Cc: devicetree, wens, robh+dt, linux-arm-kernel, Nikolay Borisov Add binding for the hwspinlock found on Allwinner A64 SoC. Signed-off-by: Nikolay Borisov <nborisov@suse.com> --- V3: Added #include directive. This makes the patch pass schema validation. .../allwinner,sun50i-a64-hwspinlock.yaml | 49 +++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml diff --git a/Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml new file mode 100644 index 000000000000..54270c8bb351 --- /dev/null +++ b/Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwlock/allwinner,sun50i-a64-hwspinlock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A64 SoC Hardware Spinlock bindings + +maintainers: + - Nikolay Borisov <nborisov@suse.com> + +properties: + "#hwlock-cells": + const: 1 + + compatible: + const: allwinner,sun50i-a64-hwspinlock + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - "#hwlock-cells" + - compatible + - reg + - clocks + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/sun50i-a64-ccu.h> + #include <dt-bindings/reset/sun50i-a64-ccu.h> + hwspinlock@1c18000 { + compatible = "allwinner,sun50i-a64-hwspinlock"; + #hwlock-cells = <1>; + reg = <0x01c18000 0x1000>; + clocks = <&ccu CLK_BUS_SPINLOCK>; + resets = <&ccu RST_BUS_SPINLOCK>; + }; + +... -- 2.17.1 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v3] dt-bindings: hwlock: Document A64 hwspinlock bindings 2020-02-12 11:54 ` [PATCH v3] " Nikolay Borisov @ 2020-02-18 23:05 ` Rob Herring 0 siblings, 0 replies; 8+ messages in thread From: Rob Herring @ 2020-02-18 23:05 UTC (permalink / raw) To: Nikolay Borisov Cc: mripard, bjorn.andersson, devicetree, wens, robh+dt, linux-arm-kernel, Nikolay Borisov On Wed, 12 Feb 2020 13:54:19 +0200, Nikolay Borisov wrote: > Add binding for the hwspinlock found on Allwinner A64 SoC. > > Signed-off-by: Nikolay Borisov <nborisov@suse.com> > --- > > V3: Added #include directive. This makes the patch pass schema validation. > > .../allwinner,sun50i-a64-hwspinlock.yaml | 49 +++++++++++++++++++ > 1 file changed, 49 insertions(+) > create mode 100644 Documentation/devicetree/bindings/hwlock/allwinner,sun50i-a64-hwspinlock.yaml > Reviewed-by: Rob Herring <robh@kernel.org> ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2020-02-18 23:05 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-02-11 12:26 [PATCH v2 0/3] Add support for hwspinlock on A64 SoC Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 1/3] hwspinlock: sunxi: Implement support for Allwinner's " Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 2/3] arm64: dts: allwinner: a64: Add hwspinlock node Nikolay Borisov 2020-02-11 12:26 ` [PATCH v2 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings Nikolay Borisov 2020-02-12 2:00 ` Rob Herring 2020-02-12 10:45 ` Nikolay Borisov 2020-02-12 11:54 ` [PATCH v3] " Nikolay Borisov 2020-02-18 23:05 ` Rob Herring
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