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authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 22:11:52 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 22:11:52 +0300
commit37f00ab4a003f371f81e0eae76cf372f06dec780 (patch)
treec6217483f22a0fac876f12af53f4b8948200f2fd /Documentation/devicetree/bindings/mfd
parent2b90506a8186df5f7c81ad1ebd250103d8469e27 (diff)
parent5ffa828534036348fa90fb3079ccc0972d202c4a (diff)
downloadlinux-37f00ab4a003f371f81e0eae76cf372f06dec780.tar.xz
Merge tag 'arm-drivers-5.13' 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: TEE/OP-TEE: - Add tracepoints around calls to secure world Memory controller drivers: - Minor fixes for Renesas, Exynos, Mediatek and Tegra platforms - Add debug statistics to Tegra20 memory controller - Update Tegra bindings and convert to dtschema ARM SCMI Firmware: - Support for modular SCMI protocols and vendor specific extensions - New SCMI IIO driver - Per-cpu DVFS The other driver changes are all from the platform maintainers directly and reflect the drivers that don't fit into any other subsystem as well as treewide changes for a particular platform. SoCFPGA: - Various cleanups contributed by Krzysztof Kozlowski Mediatek: - add MT8183 support to mutex driver - MMSYS: use per SoC array to describe the possible routing - add MMSYS support for MT8183 and MT8167 - add support for PMIC wrapper with integrated arbiter - add support for MT8192/MT6873 Tegra: - Bug fixes to PMC and clock drivers NXP/i.MX: - Update SCU power domain driver to keep console domain power on. - Add missing ADC1 power domain to SCU power domain driver. - Update comments for single global power domain in SCU power domain driver. - Add i.MX51/i.MX53 unique id support to i.MX SoC driver. NXP/FSL SoC driver updates for v5.13 - Add ACPI support for RCPM driver - Use generic io{read,write} for QE drivers after performance optimized for PowerPC - Fix QBMAN probe to cleanup HW states correctly for kexec - Various cleanup and style fix for QBMAN/QE/GUTS drivers OMAP: - Preparation to use devicetree for genpd - ti-sysc needs iorange check improved when the interconnect target module has no control registers listed - ti-sysc needs to probe l4_wkup and l4_cfg interconnects first to avoid issues with missing resources and unnecessary deferred probe - ti-sysc debug option can now detect more devices - ti-sysc now warns if an old incomplete devicetree data is found as we now rely on it being complete for am3 and 4 - soc init code needs to check for prcm and prm nodes for omap4/5 and dra7 - omap-prm driver needs to enable autoidle retention support for omap4 - omap5 clocks are missing gpmc and ocmc clock registers - pci-dra7xx now needs to use builtin_platform_driver instead of using builtin_platform_driver_probe for deferred probe to work Raspberry Pi: - Fix-up all RPi firmware drivers so as for unbind to happen in an orderly fashion - Support for RPi's PoE hat PWM bus Qualcomm - Improved detection for SCM calling conventions - Support for OEM specific wifi firmware path - Added drivers for SC7280/SM8350: RPMH, LLCC< AOSS QMP" * tag 'arm-drivers-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (165 commits) soc: aspeed: fix a ternary sign expansion bug memory: mtk-smi: Add device-link between smi-larb and smi-common memory: samsung: exynos5422-dmc: handle clk_set_parent() failure memory: renesas-rpc-if: fix possible NULL pointer dereference of resource clk: socfpga: fix iomem pointer cast on 64-bit soc: aspeed: Adapt to new LPC device tree layout pinctrl: aspeed-g5: Adapt to new LPC device tree layout ipmi: kcs: aspeed: Adapt to new LPC DTS layout ARM: dts: Remove LPC BMC and Host partitions dt-bindings: aspeed-lpc: Remove LPC partitioning soc: fsl: enable acpi support in RCPM driver soc: qcom: mdt_loader: Detect truncated read of segments soc: qcom: mdt_loader: Validate that p_filesz < p_memsz soc: qcom: pdr: Fix error return code in pdr_register_listener firmware: qcom_scm: Fix kernel-doc function names to match firmware: qcom_scm: Suppress sysfs bind attributes firmware: qcom_scm: Workaround lack of "is available" call on SC7180 firmware: qcom_scm: Reduce locking section for __get_convention() firmware: qcom_scm: Make __qcom_scm_is_call_available() return bool Revert "soc: fsl: qe: introduce qe_io{read,write}* wrappers" ...
Diffstat (limited to 'Documentation/devicetree/bindings/mfd')
-rw-r--r--Documentation/devicetree/bindings/mfd/aspeed-lpc.txt100
1 files changed, 25 insertions, 75 deletions
diff --git a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
index d0a38ba8b9ce..936aa108eab4 100644
--- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
+++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
@@ -9,13 +9,7 @@ primary use case of the Aspeed LPC controller is as a slave on the bus
conditions it can also take the role of bus master.
The LPC controller is represented as a multi-function device to account for the
-mix of functionality it provides. The principle split is between the register
-layout at the start of the I/O space which is, to quote the Aspeed datasheet,
-"basically compatible with the [LPC registers from the] popular BMC controller
-H8S/2168[1]", and everything else, where everything else is an eclectic
-collection of functions with a esoteric register layout. "Everything else",
-here labeled the "host" portion of the controller, includes, but is not limited
-to:
+mix of functionality, which includes, but is not limited to:
* An IPMI Block Transfer[2] Controller
@@ -44,80 +38,36 @@ Required properties
===================
- compatible: One of:
- "aspeed,ast2400-lpc", "simple-mfd"
- "aspeed,ast2500-lpc", "simple-mfd"
- "aspeed,ast2600-lpc", "simple-mfd"
+ "aspeed,ast2400-lpc-v2", "simple-mfd", "syscon"
+ "aspeed,ast2500-lpc-v2", "simple-mfd", "syscon"
+ "aspeed,ast2600-lpc-v2", "simple-mfd", "syscon"
- reg: contains the physical address and length values of the Aspeed
LPC memory region.
- #address-cells: <1>
- #size-cells: <1>
-- ranges: Maps 0 to the physical address and length of the LPC memory
- region
-
-Required LPC Child nodes
-========================
-
-BMC Node
---------
-
-- compatible: One of:
- "aspeed,ast2400-lpc-bmc"
- "aspeed,ast2500-lpc-bmc"
- "aspeed,ast2600-lpc-bmc"
-
-- reg: contains the physical address and length values of the
- H8S/2168-compatible LPC controller memory region
-
-Host Node
----------
-
-- compatible: One of:
- "aspeed,ast2400-lpc-host", "simple-mfd", "syscon"
- "aspeed,ast2500-lpc-host", "simple-mfd", "syscon"
- "aspeed,ast2600-lpc-host", "simple-mfd", "syscon"
-
-- reg: contains the address and length values of the host-related
- register space for the Aspeed LPC controller
-
-- #address-cells: <1>
-- #size-cells: <1>
-- ranges: Maps 0 to the address and length of the host-related LPC memory
+- ranges: Maps 0 to the physical address and length of the LPC memory
region
Example:
lpc: lpc@1e789000 {
- compatible = "aspeed,ast2500-lpc", "simple-mfd";
+ compatible = "aspeed,ast2500-lpc-v2", "simple-mfd", "syscon";
reg = <0x1e789000 0x1000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x1e789000 0x1000>;
- lpc_bmc: lpc-bmc@0 {
- compatible = "aspeed,ast2500-lpc-bmc";
+ lpc_snoop: lpc-snoop@0 {
+ compatible = "aspeed,ast2600-lpc-snoop";
reg = <0x0 0x80>;
- };
-
- lpc_host: lpc-host@80 {
- compatible = "aspeed,ast2500-lpc-host", "simple-mfd", "syscon";
- reg = <0x80 0x1e0>;
- reg-io-width = <4>;
-
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x0 0x80 0x1e0>;
+ interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+ snoop-ports = <0x80>;
};
};
-BMC Node Children
-==================
-
-
-Host Node Children
-==================
LPC Host Interface Controller
-------------------
@@ -149,14 +99,12 @@ Optional properties:
Example:
-lpc-host@80 {
- lpc_ctrl: lpc-ctrl@0 {
- compatible = "aspeed,ast2500-lpc-ctrl";
- reg = <0x0 0x80>;
- clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
- memory-region = <&flash_memory>;
- flash = <&spi>;
- };
+lpc_ctrl: lpc-ctrl@80 {
+ compatible = "aspeed,ast2500-lpc-ctrl";
+ reg = <0x80 0x80>;
+ clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+ memory-region = <&flash_memory>;
+ flash = <&spi>;
};
LPC Host Controller
@@ -179,9 +127,9 @@ Required properties:
Example:
-lhc: lhc@20 {
+lhc: lhc@a0 {
compatible = "aspeed,ast2500-lhc";
- reg = <0x20 0x24 0x48 0x8>;
+ reg = <0xa0 0x24 0xc8 0x8>;
};
LPC reset control
@@ -192,16 +140,18 @@ state of the LPC bus. Some systems may chose to modify this configuration.
Required properties:
- - compatible: "aspeed,ast2600-lpc-reset" or
- "aspeed,ast2500-lpc-reset"
- "aspeed,ast2400-lpc-reset"
+ - compatible: One of:
+ "aspeed,ast2600-lpc-reset";
+ "aspeed,ast2500-lpc-reset";
+ "aspeed,ast2400-lpc-reset";
+
- reg: offset and length of the IP in the LHC memory region
- #reset-controller indicates the number of reset cells expected
Example:
-lpc_reset: reset-controller@18 {
+lpc_reset: reset-controller@98 {
compatible = "aspeed,ast2500-lpc-reset";
- reg = <0x18 0x4>;
+ reg = <0x98 0x4>;
#reset-cells = <1>;
};