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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-05 10:02:33 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-05 10:02:33 -0700 |
commit | fad235ed4338749a66ddf32971d4042b9ef47f44 (patch) | |
tree | da36ee06f0c60824ad5d799b7b00dbca608b7c53 | |
parent | 8db4a0291b09be667ba72584e1aeb7aaf8b497bd (diff) | |
parent | 1630eee2d4e77d8c121ab955d31befacb720bb99 (diff) | |
download | lwn-fad235ed4338749a66ddf32971d4042b9ef47f44.tar.gz lwn-fad235ed4338749a66ddf32971d4042b9ef47f44.zip |
Merge tag 'arm-late-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more ARM SoC updates from Arnd Bergmann:
"These updates came in after I had already tagged the branches, but
they still seem appropriate for 6.0 and most of them were part of
linux-next through other trees.
- The reset controller tree adds one new driver for the TI TPS380x
power management chip and a few minor changes in other drivers
- Apple M1 now has a DT entry for the NVMe controller after the
driver was merged, and has a new mailing list in the MAINTAINERS
file.
- Fixes for USB on the Socionext Uniphier platforms and the network
controller on Intel Cyclone5"
* tag 'arm-late-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm64: dts: uniphier: Fix USB interrupts for PXs3 SoC
ARM: dts: uniphier: Fix USB interrupts for PXs2 SoC
arm64: dts: apple: t8103: Add ANS2 NVMe nodes
reset: tps380x: Fix spelling mistake "Voltags" -> "Voltage"
reset: tps380x: Add TPS380x device driver supprt
dt-bindings: reset: Add TPS380x documentation
dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G2UL USBPHY Control bindings
ARM: dts: add EMAC AXI settings for Cyclone5
reset: reset-simple should depends on HAS_IOMEM
Revert "reset: microchip-sparx5: allow building as a module"
reset: a10sr: allow building under COMPILE_TEST
reset: allow building of reset simple driver if expert config selected
reset: microchip-sparx5: allow building as a module
arm64: dts: apple: Re-parent ANS2 power domains
MAINTAINERS: add ARM/APPLE MACHINE mailing list
-rw-r--r-- | Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml | 1 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml | 49 | ||||
-rw-r--r-- | MAINTAINERS | 1 | ||||
-rw-r--r-- | arch/arm/boot/dts/socfpga.dtsi | 8 | ||||
-rw-r--r-- | arch/arm/boot/dts/uniphier-pxs2.dtsi | 8 | ||||
-rw-r--r-- | arch/arm64/boot/dts/apple/t8103-pmgr.dtsi | 7 | ||||
-rw-r--r-- | arch/arm64/boot/dts/apple/t8103.dtsi | 34 | ||||
-rw-r--r-- | arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi | 8 | ||||
-rw-r--r-- | drivers/reset/Kconfig | 13 | ||||
-rw-r--r-- | drivers/reset/Makefile | 1 | ||||
-rw-r--r-- | drivers/reset/reset-tps380x.c | 126 |
11 files changed, 240 insertions, 16 deletions
diff --git a/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml b/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml index 86c2569ced97..731b8ce01525 100644 --- a/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml +++ b/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml @@ -17,6 +17,7 @@ properties: compatible: items: - enum: + - renesas,r9a07g043-usbphy-ctrl # RZ/G2UL - renesas,r9a07g044-usbphy-ctrl # RZ/G2{L,LC} - renesas,r9a07g054-usbphy-ctrl # RZ/V2L - const: renesas,rzg2l-usbphy-ctrl diff --git a/Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml b/Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml new file mode 100644 index 000000000000..afc835eda0ef --- /dev/null +++ b/Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/ti,tps380x-reset.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI TPS380x reset controller node bindings + +maintainers: + - Marco Felsch <kernel@pengutronix.de> + +description: | + The TPS380x family [1] of supervisory circuits monitor supply voltages to + provide circuit initialization and timing supervision. The devices assert a + RESET signal if the voltage drops below a preset threshold or upon a manual + reset input (MR). The RESET output remains asserted for the factory + programmed delay after the voltage return above its threshold or after the + manual reset input is released. + + [1] https://www.ti.com/product/TPS3801 + +properties: + compatible: + enum: + - ti,tps3801 + + reset-gpios: + maxItems: 1 + description: Reference to the GPIO connected to the MR pin. + + "#reset-cells": + const: 0 + +required: + - compatible + - reset-gpios + - "#reset-cells" + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + reset: reset-controller { + compatible = "ti,tps3801"; + #reset-cells = <0>; + reset-gpios = <&gpio3 2 GPIO_ACTIVE_LOW>; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index a6c5c29e5a0b..cea523f64dc1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1850,6 +1850,7 @@ ARM/APPLE MACHINE SUPPORT M: Hector Martin <marcan@marcan.st> M: Sven Peter <sven@svenpeter.dev> R: Alyssa Rosenzweig <alyssa@rosenzweig.io> +L: asahi@lists.linux.dev L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained W: https://asahilinux.org diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi index bfaef45bdd04..2459f3cd7dd9 100644 --- a/arch/arm/boot/dts/socfpga.dtsi +++ b/arch/arm/boot/dts/socfpga.dtsi @@ -561,6 +561,12 @@ interrupts = <0 175 4>; }; + socfpga_axi_setup: stmmac-axi-config { + snps,wr_osr_lmt = <0xf>; + snps,rd_osr_lmt = <0xf>; + snps,blen = <0 0 0 0 16 0 0>; + }; + gmac0: ethernet@ff700000 { compatible = "altr,socfpga-stmmac", "snps,dwmac-3.70a", "snps,dwmac"; altr,sysmgr-syscon = <&sysmgr 0x60 0>; @@ -576,6 +582,7 @@ snps,perfect-filter-entries = <128>; tx-fifo-depth = <4096>; rx-fifo-depth = <4096>; + snps,axi-config = <&socfpga_axi_setup>; status = "disabled"; }; @@ -594,6 +601,7 @@ snps,perfect-filter-entries = <128>; tx-fifo-depth = <4096>; rx-fifo-depth = <4096>; + snps,axi-config = <&socfpga_axi_setup>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/uniphier-pxs2.dtsi b/arch/arm/boot/dts/uniphier-pxs2.dtsi index e81e5937a60a..03301ddb3403 100644 --- a/arch/arm/boot/dts/uniphier-pxs2.dtsi +++ b/arch/arm/boot/dts/uniphier-pxs2.dtsi @@ -597,8 +597,8 @@ compatible = "socionext,uniphier-dwc3", "snps,dwc3"; status = "disabled"; reg = <0x65a00000 0xcd00>; - interrupt-names = "host", "peripheral"; - interrupts = <0 134 4>, <0 135 4>; + interrupt-names = "dwc_usb3"; + interrupts = <0 134 4>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usb0>, <&pinctrl_usb2>; clock-names = "ref", "bus_early", "suspend"; @@ -693,8 +693,8 @@ compatible = "socionext,uniphier-dwc3", "snps,dwc3"; status = "disabled"; reg = <0x65c00000 0xcd00>; - interrupt-names = "host", "peripheral"; - interrupts = <0 137 4>, <0 138 4>; + interrupt-names = "dwc_usb3"; + interrupts = <0 137 4>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usb1>, <&pinctrl_usb3>; clock-names = "ref", "bus_early", "suspend"; diff --git a/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi b/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi index fc51bc872468..a6dbb1f485d8 100644 --- a/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi +++ b/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi @@ -725,11 +725,6 @@ #power-domain-cells = <0>; #reset-cells = <0>; label = "ans2"; - /* - * The ADT makes ps_apcie_st depend on ps_ans2 instead, but this - * doesn't make much sense since ANS2 uses APCIE_ST. - */ - power-domains = <&ps_apcie_st>; }; ps_gfx: power-controller@3f8 { @@ -836,7 +831,7 @@ #power-domain-cells = <0>; #reset-cells = <0>; label = "apcie_st"; - power-domains = <&ps_apcie>; + power-domains = <&ps_apcie>, <&ps_ans2>; }; ps_ane_sys: power-controller@470 { diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index 9f8f4145db88..51a63b29d404 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -378,6 +378,40 @@ <AIC_IRQ 274 IRQ_TYPE_LEVEL_HIGH>; }; + ans_mbox: mbox@277408000 { + compatible = "apple,t8103-asc-mailbox", "apple,asc-mailbox-v4"; + reg = <0x2 0x77408000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 583 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 584 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 585 IRQ_TYPE_LEVEL_HIGH>, + <AIC_IRQ 586 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "send-empty", "send-not-empty", + "recv-empty", "recv-not-empty"; + #mbox-cells = <0>; + power-domains = <&ps_ans2>; + }; + + sart: iommu@27bc50000 { + compatible = "apple,t8103-sart"; + reg = <0x2 0x7bc50000 0x0 0x10000>; + power-domains = <&ps_ans2>; + }; + + nvme@27bcc0000 { + compatible = "apple,t8103-nvme-ans2", "apple,nvme-ans2"; + reg = <0x2 0x7bcc0000 0x0 0x40000>, + <0x2 0x77400000 0x0 0x4000>; + reg-names = "nvme", "ans"; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 590 IRQ_TYPE_LEVEL_HIGH>; + mboxes = <&ans_mbox>; + apple,sart = <&sart>; + power-domains = <&ps_ans2>, <&ps_apcie_st>; + power-domain-names = "ans", "apcie0"; + resets = <&ps_ans2>; + }; + pcie0_dart_0: dart@681008000 { compatible = "apple,t8103-dart"; reg = <0x6 0x81008000 0x0 0x4000>; diff --git a/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi index be97da132258..ba75adedbf79 100644 --- a/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi +++ b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi @@ -599,8 +599,8 @@ compatible = "socionext,uniphier-dwc3", "snps,dwc3"; status = "disabled"; reg = <0x65a00000 0xcd00>; - interrupt-names = "host", "peripheral"; - interrupts = <0 134 4>, <0 135 4>; + interrupt-names = "dwc_usb3"; + interrupts = <0 134 4>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usb0>, <&pinctrl_usb2>; clock-names = "ref", "bus_early", "suspend"; @@ -701,8 +701,8 @@ compatible = "socionext,uniphier-dwc3", "snps,dwc3"; status = "disabled"; reg = <0x65c00000 0xcd00>; - interrupt-names = "host", "peripheral"; - interrupts = <0 137 4>, <0 138 4>; + interrupt-names = "dwc_usb3"; + interrupts = <0 137 4>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usb1>, <&pinctrl_usb3>; clock-names = "ref", "bus_early", "suspend"; diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig index 48d94649ea82..806773e88832 100644 --- a/drivers/reset/Kconfig +++ b/drivers/reset/Kconfig @@ -17,7 +17,7 @@ if RESET_CONTROLLER config RESET_A10SR tristate "Altera Arria10 System Resource Reset" - depends on MFD_ALTERA_A10SR + depends on MFD_ALTERA_A10SR || COMPILE_TEST help This option enables support for the external reset functions for peripheral PHYs on the Altera Arria10 System Resource Chip. @@ -200,8 +200,9 @@ config RESET_SCMI firmware controlling all the reset signals. config RESET_SIMPLE - bool "Simple Reset Controller Driver" if COMPILE_TEST + bool "Simple Reset Controller Driver" if COMPILE_TEST || EXPERT default ARCH_ASPEED || ARCH_BCM4908 || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || (ARCH_INTEL_SOCFPGA && ARM64) || ARCH_SUNXI || ARC + depends on HAS_IOMEM help This enables a simple reset controller driver for reset lines that that can be asserted and deasserted by toggling bits in a contiguous, @@ -265,6 +266,14 @@ config RESET_TI_SYSCON you wish to use the reset framework for such memory-mapped devices, say Y here. Otherwise, say N. +config RESET_TI_TPS380X + tristate "TI TPS380x Reset Driver" + select GPIOLIB + help + This enables the reset driver support for TI TPS380x devices. If + you wish to use the reset framework for such devices, say Y here. + Otherwise, say N. + config RESET_TN48M_CPLD tristate "Delta Networks TN48M switch CPLD reset controller" depends on MFD_TN48M_CPLD || COMPILE_TEST diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile index 3ff378f43348..cd5cf8e7c6a7 100644 --- a/drivers/reset/Makefile +++ b/drivers/reset/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_RESET_SUNPLUS) += reset-sunplus.o obj-$(CONFIG_RESET_SUNXI) += reset-sunxi.o obj-$(CONFIG_RESET_TI_SCI) += reset-ti-sci.o obj-$(CONFIG_RESET_TI_SYSCON) += reset-ti-syscon.o +obj-$(CONFIG_RESET_TI_TPS380X) += reset-tps380x.o obj-$(CONFIG_RESET_TN48M_CPLD) += reset-tn48m.o obj-$(CONFIG_RESET_UNIPHIER) += reset-uniphier.o obj-$(CONFIG_RESET_UNIPHIER_GLUE) += reset-uniphier-glue.o diff --git a/drivers/reset/reset-tps380x.c b/drivers/reset/reset-tps380x.c new file mode 100644 index 000000000000..09d511f069ba --- /dev/null +++ b/drivers/reset/reset-tps380x.c @@ -0,0 +1,126 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * TI TPS380x Supply Voltage Supervisor and Reset Controller Driver + * + * Copyright (C) 2022 Pengutronix, Marco Felsch <kernel@pengutronix.de> + * + * Based on Simple Reset Controller Driver + * + * Copyright (C) 2017 Pengutronix, Philipp Zabel <kernel@pengutronix.de> + */ + +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/property.h> +#include <linux/reset-controller.h> + +struct tps380x_reset { + struct reset_controller_dev rcdev; + struct gpio_desc *reset_gpio; + unsigned int reset_ms; +}; + +struct tps380x_reset_devdata { + unsigned int min_reset_ms; + unsigned int typ_reset_ms; + unsigned int max_reset_ms; +}; + +static inline +struct tps380x_reset *to_tps380x_reset(struct reset_controller_dev *rcdev) +{ + return container_of(rcdev, struct tps380x_reset, rcdev); +} + +static int +tps380x_reset_assert(struct reset_controller_dev *rcdev, unsigned long id) +{ + struct tps380x_reset *tps380x = to_tps380x_reset(rcdev); + + gpiod_set_value_cansleep(tps380x->reset_gpio, 1); + + return 0; +} + +static int +tps380x_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id) +{ + struct tps380x_reset *tps380x = to_tps380x_reset(rcdev); + + gpiod_set_value_cansleep(tps380x->reset_gpio, 0); + msleep(tps380x->reset_ms); + + return 0; +} + +static const struct reset_control_ops reset_tps380x_ops = { + .assert = tps380x_reset_assert, + .deassert = tps380x_reset_deassert, +}; + +static int tps380x_reset_of_xlate(struct reset_controller_dev *rcdev, + const struct of_phandle_args *reset_spec) +{ + /* No special handling needed, we have only one reset line per device */ + return 0; +} + +static int tps380x_reset_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct tps380x_reset_devdata *devdata; + struct tps380x_reset *tps380x; + + devdata = device_get_match_data(dev); + if (!devdata) + return -EINVAL; + + tps380x = devm_kzalloc(dev, sizeof(*tps380x), GFP_KERNEL); + if (!tps380x) + return -ENOMEM; + + tps380x->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(tps380x->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(tps380x->reset_gpio), + "Failed to get GPIO\n"); + + tps380x->reset_ms = devdata->max_reset_ms; + + tps380x->rcdev.ops = &reset_tps380x_ops; + tps380x->rcdev.owner = THIS_MODULE; + tps380x->rcdev.dev = dev; + tps380x->rcdev.of_node = dev->of_node; + tps380x->rcdev.of_reset_n_cells = 0; + tps380x->rcdev.of_xlate = tps380x_reset_of_xlate; + tps380x->rcdev.nr_resets = 1; + + return devm_reset_controller_register(dev, &tps380x->rcdev); +} + +static const struct tps380x_reset_devdata tps3801_reset_data = { + .min_reset_ms = 120, + .typ_reset_ms = 200, + .max_reset_ms = 280, +}; + +static const struct of_device_id tps380x_reset_dt_ids[] = { + { .compatible = "ti,tps3801", .data = &tps3801_reset_data }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, tps380x_reset_dt_ids); + +static struct platform_driver tps380x_reset_driver = { + .probe = tps380x_reset_probe, + .driver = { + .name = "tps380x-reset", + .of_match_table = tps380x_reset_dt_ids, + }, +}; +module_platform_driver(tps380x_reset_driver); + +MODULE_AUTHOR("Marco Felsch <kernel@pengutronix.de>"); +MODULE_DESCRIPTION("TI TPS380x Supply Voltage Supervisor and Reset Driver"); +MODULE_LICENSE("GPL v2"); |