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Commit 33f082614c34 ("arm64: signal: Allow expansion of the signal
frame") introduced the BASE_SIGFRAME_SIZE macro but it has
apparently never been used; just remove it.
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
Link: https://lore.kernel.org/r/20241029144539.111155-4-kevin.brodsky@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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The POE frame record is allocated unconditionally if POE is
supported. If the allocation fails, a SIGSEGV is delivered before
setup_sigframe() can be reached. As a result there is no need to
consider poe_offset before saving POR_EL0; just remove that check.
This is in line with other frame records (FPMR, TPIDR2).
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
Link: https://lore.kernel.org/r/20241029144539.111155-3-kevin.brodsky@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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PTE_TYPE_PAGE bits were being set in pte_mkcont() because PTE_TABLE_BIT
was being cleared in pte_mkhuge(). But after arch_make_huge_pte()
modification in commit f8192813dcbe ("arm64/mm: Re-organize
arch_make_huge_pte()"), which dropped pte_mkhuge() completely, setting
back PTE_TYPE_PAGE bits is no longer necessary. Change pte_mkcont() to
only set PTE_CONT.
Cc: Will Deacon <will@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20241104041617.3804617-1-anshuman.khandual@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Add another entry in the wkup_conf for the syscon node, and then use
that for the syscon in opp-table.
Marking entire wkup_conf as "syscon", "simple-mfd" is wrong and needs to
be addressed similar to how other child-nodes in wkup_conf are implemented
in the same file.
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20241104063707.3604302-1-d-gole@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers
Memory controller drivers for v6.13
1. Freescale IFC: Split handling of child nodes in the bindings to
fix dtbs_check warning.
2. ARM64 defconfig: Nothing selects CONFIG_FSL_IFC anymore since
commit 9ba0cae3cac0 ("memory: fsl_ifc: Make FSL_IFC config visible
and selectable") and actually CONFIG_MTD_NAND_FSL_IFC depends on it
now. Enable CONFIG_FSL_IFC in ARM64 defconfig, so users of it won't
lose these two drivers.
* tag 'memory-controller-drv-6.13' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
arm64: defconfig: Update defconfig with now user-visible CONFIG_FSL_IFC
dt-bindings: memory-controllers: fsl,ifc: split child node differences
Link: https://lore.kernel.org/r/20241029075348.19580-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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s/FPSMID/FPSIMD/
M and I swapped. Fix it.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/2cbcb42615e9265bccc9b746465d7998382e605d.1730539907.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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A couple of the fixed regulators in the Kukui dtsi do not actually
exist in the hardware design; they are simply power rails connected
together with 0 ohm bridges.
Drop them and assign their upstream supplies to their consumers instead.
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20241030070224.1006331-5-wenst@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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When the fixed regulators for the LCD panel and DP bridge were added,
their supplies were not modeled in. These, except for the 1.0V supply,
are just load switches, and need and have a supply.
Add the supplies for each of the fixed regulators.
Fixes: cabc71b08eb5 ("arm64: dts: mt8183: Add kukui-jacuzzi-damu board")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20241030070224.1006331-4-wenst@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Some of the regulator supplies for the MIPI-DPI-to-DP bridge and their
associated nodes are incorrectly named. In particular, the 1.0V supply
was modeled as a 1.2V supply.
Fix all the incorrect names, and also fix the voltage of the 1.0V
regulator.
Fixes: cabc71b08eb5 ("arm64: dts: mt8183: Add kukui-jacuzzi-damu board")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20241030070224.1006331-3-wenst@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Fix DTBS check errors for 'mt6358codec' and 'mt6358regulator':
Error message is:
pmic: 'mt6358codec' and 'mt6358regulator' does not match any of the
regexes: 'pinctrl-[0-9]+'.
Rename these two device node to generic 'audio-codec' and 'regulators'.
Fixes: 9f8872221674 ("arm64: dts: mt6358: add PMIC MT6358 related nodes")
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Link: https://lore.kernel.org/r/20241029064647.13370-1-macpaul.lin@mediatek.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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The reset line of the IT6505 bridge chip is active low, not active high.
It was incorrectly inverted in the device tree as the implementation at
the time incorrectly inverted the polarity in its driver, due to a prior
device having an inline inverting level shifter.
Fix the polarity now while the external display pipeline is incomplete,
thereby avoiding any impact to running systems.
A matching fix for the driver should be included if this change is
backported.
Fixes: 8855d01fb81f ("arm64: dts: mediatek: Add MT8186 Krabby platform based Tentacruel / Tentacool")
Cc: stable@vger.kernel.org
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20241029100226.660263-1-wenst@chromium.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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The power switch used to power the SD card interface might have
more than 2ms turn-on time, increase the startup delay to 20ms to
prevent failures.
Fixes: a39ed23bdf6e ("arm64: dts: freescale: add initial support for verdin imx8m plus")
Cc: stable@vger.kernel.org
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The power switch used to power the SD card interface might have
more than 2ms turn-on time, increase the startup delay to 20ms to
prevent failures.
Fixes: 6a57f224f734 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
Cc: stable@vger.kernel.org
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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By default we expect all i2c nodes to be single-master, we do not have
any module or carrier board that uses multi-master mode on any i2c
controller. With this property set, we benefit from optimisations made
exclusively for single-masters.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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By default we expect all i2c nodes to be single-master, we do not have
any module or carrier board that uses multi-master mode on any i2c
controller. With this property set, we benefit from optimisations made
exclusively for single-masters.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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With commit 7bf46ec090b9e ("dt-bindings: firmware: arm,scmi: Add missing
vendor string") this property has 'arm' vendor prefix. Fix the property
name accordingly.
Fixes: 61ed94cd54e3 ("arm64: dts: imx95: set max-rx-timeout-ms")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The HDMI connector on the board is a micro-HDMI (type "d")
Signed-off-by: Gilles Talis <gilles.talis@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The first argument of lpcg should indices, instead of index. Fix it by
use predefined macro.
Fixes: 9f7053f67c8a ("arm64: dts: imx8-ss-hsio: Add PCIe and SATA support")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Fix interrupt-map indent under pci* nodes.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Update clock settings to use the macro IMX_LPCG_CLK_0 instead of the
hardcoded value 0. The first argument of lpcg is indices, not index.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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output-high in GPIO
Fix the issue where both 'output-low' and 'output-high' exist under GPIO
hog nodes (rst_usb_hub_hog and sel_usb_hub_hog) when applying device
tree overlays. Since /delete-property/ is not supported in the overlays,
setting 'output-low' results in both properties being present. The
workaround is to disable these hogs and create new ones with 'output-low'
as needed.
Fix below CHECK_DTBS warning:
arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-usbotg.dtb: sel-usb-hub-hog:
{'output-low': True, 'gpio-hog': True, 'gpios': [[1, 0]], 'output-high': True, 'phandle': 108, '$nodename': ['sel-usb-hub-hog']}
is valid under each of {'required': ['output-low']}, {'required': ['output-high']
Fixes: 3f6fc30abebc ("arm64: dts: imx8mn: tqma8mqnl-mba8mx: Add USB DR overlay")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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compatible string
In jedec,spi-nor.yaml:
SPI NOR flashes compatible with the JEDEC SFDP standard or which may be
identified with the READ ID opcode (0x9F) do not deserve a specific
compatible. They should instead only be matched against the generic
"jedec,spi-nor" compatible.
en25s64 already in drivers/mtd/spi-nor/eon.c. So remove it safely and fix
below warning:
arch/arm64/boot/dts/freescale/fsl-ls1012a-qds.dtb: flash@2: compatible: 'oneOf' conditional failed, one must be fixed:
['en25s64', 'jedec,spi-nor'] is too long
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Update the touchscreen power-supply from 'power-supply' to 'AVDD28-supply' and
'VDDIO-supply' as per the binding documentation in goodix.yaml.
Fix below warning:
arch/arm64/boot/dts/freescale/imx8mp-kontron-dl.dtb: touchscreen@5d:
'power-supply' does not match any of the regexes: 'pinctrl-[0-9]+'
from schema $id: http://devicetree.org/schemas/input/touchscreen/goodix.yaml
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Board
Adds the DTSI file for the Nitrogen8MP SMARC System on Module which
is delivered with the Nitrogen8MP Universal SMARC Carrier Board.
Initial support includes:
- Serial console
- eMMC
- SD card
Signed-off-by: Bhavin Sharma <bhavin.sharma@siliconsignals.io>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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mba8mx board file
Move 'samsung,burst-clock-frequency' and 'samsung,esc-clock-frequency'
properties to i.MX8MN and i.MX8MM mba8mx board file. These properties are
not applicable to i.MX8MQ MIPI DSI, which uses the compatible string
'fsl,imx8mq-nwl-dsi'. The properties are only valid for i.MX8MM and i.MX8MN
devices with the compatible string 'fsl,imx8mm-mipi-dsim', as described in
samsung,mipi-dsim.yaml.
Fix warning:
arch/arm64/boot/dts/freescale/imx8mq-tqma8mq-mba8mx-lvds-tm070jvhg33.dtb: dsi@30a00000:
Unevaluated properties are not allowed ('ports', 'samsung,burst-clock-frequency', 'samsung,esc-clock-frequency' were unexpected)
from schema $id: http://devicetree.org/schemas/display/bridge/nwl-dsi.yaml#
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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'data-lanes' is port0 of lvds bridge. Needn't set it for simple panel. Fix
below CHECK_DTBS warning:
arm64/boot/dts/freescale/imx8mm-tqma8mqml-mba8mx-lvds-tm070jvhg33.dtb:
panel-lvds: port:endpoint: Unevaluated properties are not allowed ('data-lanes' was unexpected)
from schema $id: http://devicetree.org/schemas/display/panel/panel-simple.yaml#
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The Gateworks GW82XX-2X is an ARM based single board computer (SBC)
comprised of the i.MX8M Plus based gw702x SoM and the gw82xx baseboard
featuring:
- i.MX8M Plus SoC
- LPDDR4 DRAM
- eMMC FLASH
- Gateworks System Controller (GSC)
- microSD (1.8V/3.3V Capable)
- panel status bi-color LED
- pushbutton switch
- fan controller with tachometer
- USB Type-C connector
- PCIe switch
- 2x GbE RJ45 connectors
- multi-protocol RS232/RS485/RS422 Serial ports
- 2x Flexible Socket Adapters with SDIO/UART/USB/PCIe
(for M.2 and miniPCIe expansion)
- 2x isolated CAN
- GPS
- accelerometer
- magnetometer
- off-board connectors for: SPI, GPIO, I2C, ADC
- Wide range DC power input
- support for 802.3at PoE (via adapter)
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add spdif sound card support, configure the pinmux.
This sound card supports only playback sound
through HDMI interface.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add bt-sco sound card, which is used by BT HFP case.
It supports wb profile as default
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add edma1, sai4, sai5 device nodes bus of in per_bridge3.
Add edma2, sai6, sai7, spdif device nodes in bus of
per_bridge5.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Set the status of the dsp node to "okay" and assign and add its reserved
memory regions.
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Tested-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add DT node for i.MX8QM's DSP, which is found in the VPU subsystem.
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Tested-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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On i.MX8QM, the DSP is in the VPU subsystem, which means that using the
'dsp' node from 'imx8-ss-audio.dtsi' is wrong as it's placed under the
wrong bus. As such, drop it.
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Tested-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add missing dsp rproc-related reserved memory regions and assign them to
the 'dsp' node.
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Tested-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The 'dsp' node is currently configured for running an audio firmware.
Since the firmware requires that some audio-related IPs be disabled in
Linux, this will clash with the configurations from the imx8 board DTs
(i.e: imx8qm-mek, imx8qxp-mek, etc...), thus making the dsp unusable
(since the firmware won't function properly).
To avoid this issue, configure the 'dsp' node for rproc. This way, users
will be able to use the dsp alongside the board-level audio configuration
as long as the firmware doesn't need the audio IPs.
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Tested-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Enable the Renesas VBATTB clock and RTCA-3 RTC drivers. These are
available on the Renesas RZ/G3S SoC. VBATTB is the clock provider for
the RTC counter.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/20241101095720.2247815-10-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Enable RTC.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/20241101095720.2247815-9-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Enable the VBATTB controller. It provides the clock for RTC.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/20241101095720.2247815-8-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add the DT node for the RTC IP available on the Renesas RZ/G3S SoC.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/20241101095720.2247815-7-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add the DT node for the VBATTB IP along with DT bindings for the clock
it provides.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/20241101095720.2247815-6-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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When the DSI to eDP bridge was added, pin control for the IRQ pin was
left out, because the pin controller did not support INTC-EX pins yet.
Commit 10544ec1b3436037 ("pinctrl: renesas: r8a779g0: Add INTC-EX
pins, groups, and function") added support for these pins, so add the
missing pin control description.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/89bab2008891be1f003a3c0dbcdf36af3b98da70.1729240573.git.geert+renesas@glider.be
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"#sound-dai-cells" is required if the board is using "simple-card".
However, the HiHope board uses "audio-graph", thus remove the unneeded
`#sound-dai-cells`.
Commit 9e72606cd2db ("arm64: dts: renesas: #sound-dai-cells is used when
simple-card") updated the comment regarding usage of "#sound-dai-cells"
in the SoC DTSI but missed to remove "#sound-dai-cells" from board DTS
files.
Fixes: 9e72606cd2db ("arm64: dts: renesas: #sound-dai-cells is used when simple-card")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/20241010135332.710648-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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The AM62Px reference board is capable of supplying 0v85 to the VDD_CORE
which allows the Cortex-A53s to operate at 1.4GHz according to chapter
6.6 of the SoC's data sheet[0] . Append the 1.4Ghz entry to the OPP
table to enable this frequency
[0] https://www.ti.com/lit/ds/symlink/am62p-q1.pdf
Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20241008132052.407994-5-d-gole@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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One power management technique available to the Cortex-A53s is their
ability to dynamically scale their frequency across the device's
Operating Performance Points (OPP)
The OPPs available for the Cortex-A53s on the AM62Px can vary based on
the silicon variant used. The SoC variant is encoded into the
WKUP_MMR0_WKUP0_CTRL_MMR0_JTAG_USER_ID register which is used to limit
the OPP entries the SoC supports. A table of all these variants can be
found in its data sheet[0] for the AM62Px processor family.
Add the OPP table into the SoC's fdti file along with the syscon node to
describe the WKUP_MMR0_WKUP0_CTRL_MMR0_JTAG_USER_ID register to detect
the SoC variant.
[0] https://www.ti.com/lit/ds/symlink/am62p-q1.pdf
Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20241008132052.407994-4-d-gole@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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The AM62Ax reference board is capable of supplying 0v85 to the VDD_CORE
which allows the Cortex-A53s to operate at 1.4GHz according to chapter
7.5 of the SoC's data sheet[0]. Append the 1.4Ghz entry to the OPP table
to enable this OPP
[0] https://www.ti.com/lit/ds/symlink/am62a3.pdf
Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20241008132052.407994-3-d-gole@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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One power management technique available to the Cortex-A53s is their
ability to dynamically scale their frequency across the device's
Operating Performance Points (OPP)
The OPPs available for the Cortex-A53s on the AM62Ax can vary based on
the silicon variant used. The SoC variant is encoded into the
WKUP_MMR0_WKUP0_CTRL_MMR0_JTAG_USER_ID register which is used to limit
to only OPP entries the variant supports. A table of all these variants
can be found in it's data sheet[0] for the AM62Ax family.
Add the OPP table into the SoC's fdti file along with the syscon node to
describe the WKUP_MMR0_WKUP0_CTRL_MMR0_JTAG_USER_ID register to detect
the SoC variant.
[0] https://www.ti.com/lit/ds/symlink/am62a3.pdf
Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20241008132052.407994-2-d-gole@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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Add Toradex Verdin Ivy carrier board support. One notable feature of Ivy
is the analog inputs. These inputs are multiplexed, allowing the same
input to measure either voltage or current. For current measurements,
a GPIO switch enables or disables the shunt resistor. This process is
automatically managed by the Linux kernel using the IIO and MUX
subsystems. Voltage measurement is always enabled, but the voltage
measured by the ADC is scaled by a cascade voltage divider. In the
device tree, the equivalent gain of the voltage divider is used, which
can be calculated as follows:
------------
+ |
.-.
R1=30K | |
| |
'-'
|-------------------
Analog Input (AIN) | |
.-. .-.
R2=10K | | R3=30K | |
| | | |
'-' '-'
| |
| |--------
| .-. +
| R4=10K | |
| | | ADC Input (Channels 0 and 1)
| '-'
- | | -
-----------| |--------
=== ===
GND GND
Vin = Analog Input (AIN)
Vout = ADC Input
Rth = Thevenin Equiv. Resistance
Vth = Thevenin Equiv. Voltage
RL = Load Resistor
R1 = 30K, R2 = 10K, R3 = 30K, R4 = 10K
RL = R4 = 10K
Rth = (R1 // R2) + R3 = 37500 Ohms
Vth = (Vin * R2) / (R1 + R2) = Vin/4;
Vout = (Vth * RL)/ (Rth + RL) = Vth/4.75 = Vin/19
Gain = Vout/Vin = 1/19
https://www.toradex.com/products/carrier-board/ivy-carrier-board
Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240924120044.130913-4-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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Add a label to ti-ads1015 node to make it easier to reference it
from other nodes.
Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240924120044.130913-3-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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The vvar mapping is the same for all processes. Use a single mapping to
simplify the logic and align it with the other architectures.
In addition this will enable the move of the vvar handling into generic code.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Will Deacon <will@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-5-b64f0842d512@linutronix.de
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This constant is always "0", providing no value and making the logic
harder to understand.
Also prepare for a consolidation of the vdso linkerscript logic by
aligning it with other architectures.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-4-b64f0842d512@linutronix.de
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