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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-21 05:42:28 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-21 05:42:28 +0300 |
commit | e767b3530acbf651593e3d357fe1168a024d8061 (patch) | |
tree | 0f549bbb4cf187661416f672dd0329c59b7a8fee /Documentation/devicetree/bindings/reset | |
parent | 82851fce6107d5a3e66d95aee2ae68860a732703 (diff) | |
parent | 4f79a8b06fccec3dd68935db5a4662435c472abf (diff) | |
download | linux-e767b3530acbf651593e3d357fe1168a024d8061.tar.xz |
Merge tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"Updates for SoC specific drivers include a few subsystems that have
their own maintainers but send them through the soc tree:
SCMI firmware:
- add support for a completion interrupt
Reset controllers:
- new driver for BCM4908
- new devm_reset_control_get_optional_exclusive_released() function
Memory controllers:
- Renesas RZ/G2 support
- Tegra124 interconnect support
- Allow more drivers to be loadable modules
TEE/optee firmware:
- minor code cleanup
The other half of this is SoC specific drivers that do not belong into
any other subsystem, most of them living in drivers/soc:
- Allwinner/sunxi power management work
- Allwinner H616 support
- ASpeed AST2600 system identification support
- AT91 SAMA7G5 SoC ID driver
- AT91 SoC driver cleanups
- Broadcom BCM4908 power management bus support
- Marvell mbus cleanups
- Mediatek MT8167 power domain support
- Qualcomm socinfo driver support for PMIC
- Qualcomm SoC identification for many more products
- TI Keystone driver cleanups for PRUSS and elsewhere"
* tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (89 commits)
soc: aspeed: socinfo: Add new systems
soc: aspeed: snoop: Add clock control logic
memory: tegra186-emc: Replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
memory: samsung: exynos5422-dmc: Correct function names in kerneldoc
memory: ti-emif-pm: Drop of_match_ptr from of_device_id table
optee: simplify i2c access
drivers: soc: atmel: fix type for same7
tee: optee: remove need_resched() before cond_resched()
soc: qcom: ocmem: don't return NULL in of_get_ocmem
optee: sync OP-TEE headers
tee: optee: fix 'physical' typos
drivers: optee: use flexible-array member instead of zero-length array
tee: fix some comment typos in header files
soc: ti: k3-ringacc: Use of_device_get_match_data()
soc: ti: pruss: Refactor the CFG sub-module init
soc: mediatek: pm-domains: Don't print an error if child domain is deferred
soc: mediatek: pm-domains: Add domain regulator supply
dt-bindings: power: Add domain regulator supply
soc: mediatek: cmdq: Remove cmdq_pkt_flush()
soc: mediatek: pm-domains: Add support for mt8167
...
Diffstat (limited to 'Documentation/devicetree/bindings/reset')
3 files changed, 116 insertions, 44 deletions
diff --git a/Documentation/devicetree/bindings/reset/brcm,bcm4908-misc-pcie-reset.yaml b/Documentation/devicetree/bindings/reset/brcm,bcm4908-misc-pcie-reset.yaml new file mode 100644 index 000000000000..88aebb370838 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/brcm,bcm4908-misc-pcie-reset.yaml @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/brcm,bcm4908-misc-pcie-reset.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom MISC block PCIe reset controller + +description: This document describes reset controller handling PCIe PERST# + signals. On BCM4908 it's a part of the MISC block. + +maintainers: + - Rafał Miłecki <rafal@milecki.pl> + +properties: + compatible: + const: brcm,bcm4908-misc-pcie-reset + + reg: + maxItems: 1 + + "#reset-cells": + description: PCIe core id + const: 1 + +required: + - compatible + - reg + - "#reset-cells" + +additionalProperties: false + +examples: + - | + reset-controller@ff802644 { + compatible = "brcm,bcm4908-misc-pcie-reset"; + reg = <0xff802644 0x04>; + #reset-cells = <1>; + }; diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt deleted file mode 100644 index 2df4bddeb688..000000000000 --- a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt +++ /dev/null @@ -1,44 +0,0 @@ -Hisilicon System Reset Controller -====================================== - -Please also refer to reset.txt in this directory for common reset -controller binding usage. - -The reset controller registers are part of the system-ctl block on -hi3660 and hi3670 SoCs. - -Required properties: -- compatible: should be one of the following: - "hisilicon,hi3660-reset" for HI3660 - "hisilicon,hi3670-reset", "hisilicon,hi3660-reset" for HI3670 -- hisi,rst-syscon: phandle of the reset's syscon. -- #reset-cells : Specifies the number of cells needed to encode a - reset source. The type shall be a <u32> and the value shall be 2. - - Cell #1 : offset of the reset assert control - register from the syscon register base - offset + 4: deassert control register - offset + 8: status control register - Cell #2 : bit position of the reset in the reset control register - -Example: - iomcu: iomcu@ffd7e000 { - compatible = "hisilicon,hi3660-iomcu", "syscon"; - reg = <0x0 0xffd7e000 0x0 0x1000>; - }; - - iomcu_rst: iomcu_rst_controller { - compatible = "hisilicon,hi3660-reset"; - hisi,rst-syscon = <&iomcu>; - #reset-cells = <2>; - }; - -Specifying reset lines connected to IP modules -============================================== -example: - - i2c0: i2c@..... { - ... - resets = <&iomcu_rst 0x20 3>; /* offset: 0x20; bit: 3 */ - ... - }; diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.yaml b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.yaml new file mode 100644 index 000000000000..9bf40952e5b7 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.yaml @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/hisilicon,hi3660-reset.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Hisilicon System Reset Controller + +maintainers: + - Wei Xu <xuwei5@hisilicon.com> + +description: | + Please also refer to reset.txt in this directory for common reset + controller binding usage. + The reset controller registers are part of the system-ctl block on + hi3660 and hi3670 SoCs. + +properties: + compatible: + oneOf: + - items: + - const: hisilicon,hi3660-reset + - items: + - const: hisilicon,hi3670-reset + - const: hisilicon,hi3660-reset + + hisilicon,rst-syscon: + description: phandle of the reset's syscon. + $ref: /schemas/types.yaml#/definitions/phandle + + '#reset-cells': + description: | + Specifies the number of cells needed to encode a reset source. + Cell #1 : offset of the reset assert control register from the syscon + register base + offset + 4: deassert control register + offset + 8: status control register + Cell #2 : bit position of the reset in the reset control register + const: 2 + +required: + - compatible + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/hi3660-clock.h> + + iomcu: iomcu@ffd7e000 { + compatible = "hisilicon,hi3660-iomcu", "syscon"; + reg = <0xffd7e000 0x1000>; + }; + + iomcu_rst: iomcu_rst_controller { + compatible = "hisilicon,hi3660-reset"; + hisilicon,rst-syscon = <&iomcu>; + #reset-cells = <2>; + }; + + /* Specifying reset lines connected to IP modules */ + i2c@ffd71000 { + compatible = "snps,designware-i2c"; + reg = <0xffd71000 0x1000>; + interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>; + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <400000>; + clocks = <&crg_ctrl HI3660_CLK_GATE_I2C0>; + resets = <&iomcu_rst 0x20 3>; + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pmx_func &i2c0_cfg_func>; + status = "disabled"; + }; +... |