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path: root/src/drivers/spi/acpi/acpi.c
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2023-01-15drivers/spi/acpi: Drop 'disable_gpio_export_in_crs' flagMatt DeVillier
Exposing the GPIOs via an ACPI PowerResource and the _CRS results in the OS driver and ACPI thinking they own the GPIO. This can cause timing problems because it's not clear which system should be controlling the GPIO. There's no reason to require explicit disablement however, so drop the superfluous 'disable' flag, and change the _CRS generation to check if the GPIOs will be exported via the 'has_power_resource' flag instead. This mirrors the change made for drivers/i2c/generic. TEST=untested, as no boards selected this option. Change-Id: I4f95d0e453d89b7e1978d3efac304518304495d1 Signed-off-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/71850 Reviewed-by: Martin L Roth <gaumless@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-08-09drivers/spi/acpi: Update _S0W return value to D3hotTim Wawrzynczak
In order to support wake from D3cold, most devices require extra circuitry and possibly out-of-band communications to the host. Therefore, assume that most SPI peripherals that do have wake capabilities support wake from D3hot rather than D3cold. This also allows coreboot to expose a power resource to perform power sequencing for a SPI peripheral that is intended to retain power in S3/S0ix. If support for a device with d3cold wake support is needed, it could be added in later as an option. BUG=b:187228954 TEST=compile Change-Id: I1d739b49c1a43007eb0199fe39b3b7d7375e6577 Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/56833 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-11-09acpi: Call acpi_fill_ssdt() only for enabled devicesKarthikeyan Ramasubramanian
Individual drivers check whether the concerned device is enabled before filling in the SSDT. Move the check before calling acpi_fill_ssdt() and remove the check in the individual drivers. BUG=None TEST=util/abuild/abuild Change-Id: Ib042bec7e8c68b38fafa60a8e965d781bddcd1f0 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47148 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Christian Walter <christian.walter@9elements.com>
2020-07-02acpi_device: Replace polarity with active_low in acpi_gpio for GpioIoFurquan Shaikh
As per ACPI spec, GpioIo does not have any polarity associated with it. Linux kernel uses `active_low` argument within GPIO _DSD property to allow BIOS to indicate if the corresponding GPIO should be treated as active low. Thus, if GPIO has active high polarity or if it does not have any polarity associated with it, then the `active_low` argument is supposed to be set to 0. Having a `polarity` field in acpi_gpio seems confusing because GPIOs might not always have polarity associated with them. Example, in case of DMIC-select GPIO where 0 means select DMIC0 and 1 means select DMIC1, there is no polarity associated with the GPIO. Thus, it would be clearer for mainboard to use macros without having to specify a particular polarity. In order to enable mainboards to provide GPIO information without polarity for GpioIo usage, this change also adds `ACPI_GPIO_OUTPUT` and `ACPI_GPIO_INPUT` macros. BUG=b:157603026 Change-Id: I39d2a6ac8f149a74afeb915812fece86c9b9ad93 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42968 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-13src: Remove unused '#include <stdint.h>'Elyes HAOUAS
unused includes of <stdin.h> found using following commande: diff <(git grep -l '#include <stdint.h>' -- src/) <(git grep -l 'int8_t\|uint8_t\|int16_t\|uint16_t\|int32_t\|uint32_t\|int64_t\| uint64_t\|intptr_t\|uintptr_t\|intmax_t\|uintmax_t\|s8\|u8\|s16\| u16\|s32\|u32\|s64\|u64\|INT8_MIN\|INT8_MAX\|UINT8_MAX\|INT16_MIN\ |INT16_MAX\|UINT16_MAX\|INT32_MIN\|INT32_MAX\|UINT32_MAX\|INT64_MIN\ |INT64_MAX\|UINT64_MAX\|INTMAX_MIN\|INTMAX_MAX\|UINTMAX_MAX' -- src/) |grep '<' |grep -v vendor |grep -vF '.h' Change-Id: Icb9b54c6abfb18d1e263665981968a4d7cccabeb Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41148 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-02acpi: Move ACPI table support out of arch/x86 (3/5)Furquan Shaikh
This change moves all ACPI table support in coreboot currently living under arch/x86 into common code to make it architecture independent. ACPI table generation is not really tied to any architecture and hence it makes sense to move this to its own directory. In order to make it easier to review, this change is being split into multiple CLs. This is change 3/5 which basically is generated by running the following command: $ git grep -iIl "arch/acpi" | xargs sed -i 's/arch\/acpi/acpi\/acpi/g' BUG=b:155428745 Change-Id: I16b1c45d954d6440fb9db1d3710063a47b582eae Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40938 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2020-04-28device: Constify struct device * parameter to acpi_fill_ssdt()Furquan Shaikh
.acpi_fill_ssdt() does not need to modify the device structure. This change makes the struct device * parameter to acpi_fill_ssdt() as const. Change-Id: I110f4c67c3b6671c9ac0a82e02609902a8ee5d5c Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40710 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-10Replace DEVICE_NOOP with noop_(set|read)_resourcesNico Huber
`.read_resources` and `.set_resources` are the only two device operations that are considered mandatory. Other function pointers can be left NULL. Having dedicated no-op implementations for the two mandatory fields should stop the leaking of no-op pointers to other fields. Change-Id: I6469a7568dc24317c95e238749d878e798b0a362 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40207 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Edward O'Callaghan <quasisec@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-10Drop unnecessary DEVICE_NOOP entriesNico Huber
Providing an explicit no-op function pointer is only necessary for `.read_resources` and `.set_resources`. All other device-operation pointers are optional and can be NULL. Change-Id: I3d139f7be86180558cabec04b8566873062e33be Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40206 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Edward O'Callaghan <quasisec@chromium.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-06src/drivers: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I38eaffa391ed5971217ffad74a312b1641e431c9 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40051 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-04-02Trim `.acpi_fill_ssdt_generator` and `.acpi_inject_dsdt_generator`Nico Huber
These two identifiers were always very confusing. We're not filling and injecting generators. We are filling SSDTs and injecting into the DSDT. So drop the `_generator` suffix. Hopefully, this also makes ACPI look a little less scary. Change-Id: I6f0e79632c9c855f38fe24c0186388a25990c44d Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39977 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: David Guckian Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-22AUTHORS: Move src/drivers/[l*-v*] copyrights into AUTHORS fileMartin Roth
As discussed on the mailing list and voted upon, the coreboot project is going to move the majority of copyrights out of the headers and into an AUTHORS file. This will happen a bit at a time, as we'll be unifying license headers at the same time. Updated Authors file is in a separate commit. Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: Ia0a07df6ca1fdaa2837ce8839057057cbd44d157 Reviewed-on: https://review.coreboot.org/c/coreboot/+/36181 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-01-23src/drivers: Remove needless '&' on function pointersElyes HAOUAS
Change-Id: I7a99d0dcbc8ea1362a12a68fa519c49058d30a05 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/29868 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2018-09-16acpi: Call acpi_gen_writeSTA by status from device treeHung-Te Lin
The device tree now supports 'hidden' and the status can be found in `struct device.hidden`. A new acpi_device_status() will return the expected setting of STA from a `struct device`. BUG=b:72200466 BRANCH=eve TEST=Builds and boots properly on device eve Change-Id: I6dc62aff63cc3cb950739398a4dcac21836c9766 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://review.coreboot.org/28567 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-02src/drivers: Add reset/enable/stop_off_ms variables to ACPI devicesShelley Chen
Some touchscreens need to adhere to certain timings during the power off sequence as well as during the power on sequence. Adding reset_off_delay_ms, enable_off_delay_ms, and stop_off_delay_ms to accommodate these devices. BUG=b:78311818 BRANCH=None TEST=./util/abuild/abuild -p none -t google/poppy -x -a Change-Id: Idb4a5dbe56eee4749d2f2b514e92c28fb2c6078f Signed-off-by: Shelley Chen <shchen@google.com> Reviewed-on: https://review.coreboot.org/25882 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2017-09-14device: acpi_name() should take a const struct deviceAaron Durbin
There's no reason to mutate the struct device when determining the ACPI name for a device. Adjust the function pointer signature and the respective implementations to use const struct device. Change-Id: If5e1f4de36a53646616581b01f47c4e86822c42e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/21527 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Subrata Banik <subrata.banik@intel.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2017-08-30acpigen: Add stop gpio control to power resourceFurquan Shaikh
There is at least one I2C device (being used by Soraka) that has 3 controls -- enable, reset and stop. If the stop gpio is not put into the right state when turning off the device in suspend mode, then it causes leakage. Thus, we need control in power resource to be able to stop the device when entering suspend state. BUG=b:64987428 TEST=Verified on soraka that touchscreen stop is correctly configured on suspend. Change-Id: Iae5ec7eb3972c5c7f80956d60d0d3c321bbefb0f Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/21249 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-04-09drivers/spi: Get rid of spi_get_configFurquan Shaikh
There is only one user for spi_get_config i.e. SPI ACPI. Also, the values provided by spi_get_config are constant for now. Thus, get rid of the spi_get_config call and fill in these constant values in SPI ACPI code itself. If there is a need in the future to change these, appropriate device-tree configs can be added. BUG=b:36873582 Change-Id: Ied38e2670784ee3317bb12e542666c224bd9e819 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/19203 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2017-02-19drivers/spi/acpi: Add additional generic ACPI supportDuncan Laurie
Add support for more ACPI features in the generic SPI ACPI driver so it can be flexible enough to support more devices, or devices in different configurations. - add a wake pin - add support for using IRQ GPIO instead of PIRQ - add power resource support with enable and reset gpios BUG=chrome-os-partner:61233 TEST=ensure existing SSDT generation is unchanged, and test that new features generate expected code Change-Id: Ibe37cc87e488004baa2c08a369f73c86e6cd6dce Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/18393 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2017-02-16drivers/spi: Add support for generating SPI device in SSDTFurquan Shaikh
Similar to I2C driver, add support for generating SPI device and required properties in SSDT for ACPI. BUG=chrome-os-partner:59832 BRANCH=None TEST=Compiles succesfully. Verified SPI device generated in SSDT on poppy. Change-Id: Ic4da79c823131d54d9eb3652b86f6e40fe643ab5 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/18342 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
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