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2024-05-29tree: Use <stdio.h> for snprintfElyes Haouas
<stdio.h> header is used for input/output operations (such as printf, scanf, fopen, etc.). Although some input/output functions can manipulate strings, they do not need to directly include <string.h> because they are declared independently. Change-Id: Ibe2a4ff6f68843a6d99cfdfe182cf2dd922802aa Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/82665 Reviewed-by: Yidi Lin <yidilin@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2024-04-12tree: Drop duplicated <device/{path,resource}.h>Elyes Haouas
<device/device.h> is supposed to provide <device/{path,resource}.h> Change-Id: I2ef82c8fe30b1c1399a9f85c1734ce8ba16a1f88 Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/81830 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <ericllai@google.com>
2024-02-18drivers: Add SPDX license headers to Kconfig filesMartin Roth
Change-Id: Ib27894f0f1e03501583fffb2c759b493d6a7b945 Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/80588 Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2024-01-31include/device/device.h: Remove CHIP_NAME() macroNicholas Sudsgaard
Macros can be confusing on their own; hiding commas make things worse. This can sometimes be downright misleading. A "good" example would be the code in soc/intel/xeon_sp/spr/chip.c: CHIP_NAME("Intel SapphireRapids-SP").enable_dev = chip_enable_dev, This appears as CHIP_NAME() being some struct when in fact these are defining 2 separate members of the same struct. It was decided to remove this macro altogether, as it does not do anything special and incurs a maintenance burden. Change-Id: Iaed6dfb144bddcf5c43634b0c955c19afce388f0 Signed-off-by: Nicholas Sudsgaard <devel+coreboot@nsudsgaard.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/80239 Reviewed-by: Yidi Lin <yidilin@google.com> Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Reviewed-by: Jakub Czapiga <czapiga@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
2024-01-24driver/i2c: Rename Makefiles from .inc to .mkMartin Roth
The .inc suffix is confusing to various tools as it's not specific to Makefiles. This means that editors don't recognize the files, and don't open them with highlighting and any other specific editor functionality. This issue is also seen in the release notes generation script where Makefiles get renamed before running cloc. Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: I358b878b97adfd9be156a5dd4a9cbaf9e81bca1a Reviewed-on: https://review.coreboot.org/c/coreboot/+/80078 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
2023-08-06drivers: Add SPDX license headers to MakefilesMartin Roth
To help identify the licenses of the various files contained in the coreboot source, we've added SPDX headers to the top of all of the .c and .h files. This extends that practice to Makefiles. Any file in the coreboot project without a specific license is bound to the license of the overall coreboot project, GPL Version 2. This patch adds the GPL V2 license identifier to the top of all makefiles in the drivers directory that don't already have an SPDX license line at the top. Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: I8442bc18ce228eca88a084660be84bcd1c5de928 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68980 Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Tim Crawford <tcrawford@system76.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
2023-05-05vc/google: Decouple DSM_CALIB from CHROMEOSMatt DeVillier
DSM (Dynamic Speaker Management) uses calibration parameters stored in a VPD (Vital Product Data) FMAP region to configure the audio output via an ACPI _DSD table. This has no dependency on a ChromeOS, and can be used by Linux/Windows drivers if appropriately configured. Remove the dependency of DSM_CALIB (and the calibration file) on CHROMEOS and replace it with VPD, so that non-CHROMEOS builds can utilize this feature as well. Move files from underneath vc/google/chromeos to underscore the point. TEST=build/boot google/nightfury, dump ACPI, verify DSM calibraton parameters present in _DSD table. Change-Id: I643b3581bcc662befc9e30736dae806f94b055af Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74812 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: CoolStar <coolstarorganization@gmail.com> Reviewed-by: Sean Rhodes <sean@starlabs.systems> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
2023-04-28treewide: Add missing include guards to chip.hJan Samek
Some of the chip.h files in the tree are missing the include guards. This patch adds them in order to avoid potential redefinions of symbols contained in these headers, when they are included multiple times in static.c generated by sconfig. Change-Id: I550a514e72a8dd4db602e7ceffccd81aa36446e3 Signed-off-by: Jan Samek <jan.samek@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74749 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2022-04-24drivers: Remove unused <acpi/acpi.h>Elyes HAOUAS
Found using: diff <(git grep -l '#include <acpi/acpi.h>' -- src/) <(git grep -l 'SLP_EN\|SLP_TYP_SHIFT\|SLP_TYP\|SLP_TYP_S\|ACPI_TABLE_CREATOR\|OEM_ID\|ACPI_DSDT_REV_\|acpi_device_sleep_states\|ACPI_DEVICE_SLEEP\|RSDP_SIG\|ASLC\|ACPI_NAME_BUFFER_SIZE\|COREBOOT_ACPI_ID\|acpi_tables\|acpi_rsdp\|acpi_gen_regaddr\|ACPI_ADDRESS_SPACE\|ACPI_FFIXEDHW_\|ACPI_ACCESS_SIZE_\|ACPI_REG_MSR\|ACPI_REG_UNSUPPORTED\|ACPI_HID_\|acpi_table_header\|MAX_ACPI_TABLES\|acpi_rsdt\|acpi_xsdt\|acpi_hpet\|acpi_mcfg\|acpi_tcpa\|acpi_tpm2\|acpi_mcfg_mmconfig\|acpi_hmat\|acpi_hmat_mpda\|acpi_hmat_sllbi\|acpi_hmat_msci\|acpi_srat\|ACPI_SRAT_STRUCTURE_\|acpi_srat_lapic\|acpi_srat_mem\|acpi_srat_gia\|CPI_SRAT_GIA_DEV_HANDLE_\|acpi_slit\|acpi_madt\|acpi_lpit\|acpi_lpi_flags\|acpi_lpi_desc_type\|ACPI_LPI_DESC_TYPE_\|acpi_lpi_desc_hdr\|ACPI_LPIT_CTR_FREQ_TSC\|acpi_lpi_desc_ncst\|acpi_vfct_image_hdr\|acpi_vfct\|acpi_ivrs_info\|acpi_ivrs_ivhd\|acpi_ivrs\|acpi_crat_header\|ivhd11_iommu_attr\|acpi_ivrs_ivhd_11\|dev_scope_type\|SCOPE_PCI_\|SCOPE_IOAPIC\|SCOPE_MSI_HPET\|SCOPE_ACPI_NAMESPACE_DEVICE\|dev_scope\|dmar_type\|DMAR_\|DRHD_INCLUDE_PCI_ALL\|ATC_REQUIRED\|DMA_CTRL_PLATFORM_OPT_IN_FLAG\|dmar_entry\|dmar_rmrr_entry\|dmar_atsr_entry\|dmar_rhsa_entry\|dmar_andd_entry\|dmar_satc_entry\|acpi_dmar\|acpi_apic_types\|LOCAL_APIC,\|IO_APIC\|IRQ_SOURCE_OVERRIDE\|NMI_TYPE\|LOCAL_APIC_NMI\|LAPIC_ADDRESS_\|IO_SAPIC\|LOCAL_SAPIC\|PLATFORM_IRQ_SOURCES\|LOCAL_X2APIC\|GICC\|GICD\|GIC_MSI_FRAME\|GICR\|GIC_ITS\|acpi_madt_lapic\|acpi_madt_lapic_nmi\|ACPI_MADT_LAPIC_NMI_ALL_PROCESSORS\|acpi_madt_ioapic\|acpi_madt_irqoverride\|acpi_madt_lx2apic\|acpi_madt_lx2apic_nmi\|ACPI_DBG2_PORT_\|acpi_dbg2_header\|acpi_dbg2_device\|acpi_fadt\|ACPI_FADT_\|PM_UNSPECIFIED\|PM_DESKTOP\|PM_MOBILE\|PM_WORKSTATION\|PM_ENTERPRISE_SERVER\|PM_SOHO_SERVER\|PM_APPLIANCE_PC\|PM_PERFORMANCE_SERVER\|PM_TABLET\|acpi_facs\|ACPI_FACS_\|acpi_ecdt\|acpi_hest\|acpi_hest_esd\|acpi_hest_hen\|acpi_bert\|acpi_hest_generic_data\|acpi_hest_generic_data_v300\|HEST_GENERIC_ENTRY_V300\|ACPI_GENERROR_\|acpi_generic_error_status\|GENERIC_ERR_STS_\|acpi_cstate\|acpi_sw_pstate\|acpi_xpss_sw_pstate\|acpi_tstate\|acpi_lpi_state_flags\|ACPI_LPI_STATE_\|acpi_lpi_state\|acpi_upc_type\|UPC_TYPE_\|acpi_ipmi_interface_type\|IPMI_INTERFACE_\|ACPI_IPMI_\|acpi_spmi\|ACPI_EINJ_\|ACTION_COUNT\|BEGIN_INJECT_OP\|GET_TRIGGER_ACTION_TABLE\|SET_ERROR_TYPE\|GET_ERROR_TYPE\|END_INJECT_OP\|EXECUTE_INJECT_OP\|CHECK_BUSY_STATUS\|GET_CMD_STATUS\|SET_ERROR_TYPE_WITH_ADDRESS\|TRIGGER_ERROR\|READ_REGISTER\|READ_REGISTER_VALUE\|WRITE_REGISTER\|WRITE_REGISTER_VALUE\|NO_OP\|acpi_gen_regaddr1\|acpi_einj_action_table\|acpi_injection_header\|acpi_einj_trigger_table\|set_error_type\|EINJ_PARAM_NUM\|acpi_einj_smi\|EINJ_DEF_TRIGGER_PORT\|FLAG_PRESERVE\|FLAG_IGNORE\|EINJ_REG_MEMORY\|EINJ_REG_IO\|acpi_einj\|acpi_create_einj\|fw_cfg_acpi_tables\|preload_acpi_dsdt\|write_acpi_tables\|acpi_fill_madt\|acpi_fill_ivrs_ioapic\|acpi_create_ssdt_generator\|acpi_write_bert\|acpi_create_fadt\|acpi_fill_fadt\|arch_fill_fadt\|soc_fill_fadt\|mainboard_fill_fadt\|acpi_fill_gnvs\|acpi_fill_cnvs\|update_ssdt\|update_ssdtx\|acpi_fill_lpit\|acpi_checksum\|acpi_add_table\|acpi_create_madt_lapic\|acpi_create_madt_ioapic\|acpi_create_madt_irqoverride\|acpi_create_madt_lapic_nmi\|acpi_create_madt\|acpi_create_madt_lapics\|acpi_create_madt_lapic_nmis\|acpi_create_madt_lx2apic\|acpi_create_srat_lapic\|acpi_create_srat_mem\|acpi_create_srat_gia_pci\|acpi_create_mcfg_mmconfig\|acpi_create_srat_lapics\|acpi_create_srat\|acpi_create_slit\|acpi_create_hmat_mpda\|acpi_create_hmat\|acpi_create_vfct\|acpi_create_ipmi\|acpi_create_ivrs\|acpi_create_crat\|acpi_create_hpet\|acpi_write_hpet\|generate_cpu_entries\|acpi_create_mcfg\|acpi_create_facs\|acpi_create_dbg2\|acpi_write_dbg2_pci_uart\|acpi_create_dmar\|acpi_create_dmar_drhd\|acpi_create_dmar_rmrr\|acpi_create_dmar_atsr\|acpi_create_dmar_rhsa\|acpi_create_dmar_andd\|acpi_create_dmar_satc\|cpi_dmar_\|acpi_create_\|acpi_write_hest\|acpi_soc_get_bert_region\|acpi_resume\|mainboard_suspend_resume\|acpi_find_wakeup_vector\|ACPI_S\|acpi_sleep_from_pm1\|acpi_get_preferred_pm_profile\|acpi_get_sleep_type\|acpi_get_gpe\|permanent_smi_handler\|acpi_s3_resume_allowed\|acpi_is_wakeup_s3\|acpi_align_current\|get_acpi_table_revision' -- src/) |grep "<" Change-Id: Ic890dc7c0ed02891d3144210016cd96f01c344d5 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/60632 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <martinroth@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>
2020-09-21src/drivers: Drop unneeded empty linesElyes HAOUAS
Change-Id: I202e5d285612b9bf237b588ea3c006187623fdc3 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44609 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-07-14src: Remove unused 'include <stdint.h>Elyes HAOUAS
Found using: diff <(git grep -l '#include <stdint.h>' -- src/) <(git grep -l 'int8_t\|int16_t\|int32_t\|int64_t\|intptr_t\|intmax_t\|s8\|u8\|s16\|u16\|s32\|u32\|s64\|u64\|INT8_MIN\|INT8_MAX\|INT16_MIN\|INT16_MAX\|INT32_MIN\|INT32_MAX\|INT64_MIN\|INT64_MAX\|INTMAX_MIN\|INTMAX_MAX' -- src/) |grep -v vendorcode |grep '<' Change-Id: I5e14bf4887c7d2644a64f4d58c6d8763eb74d2ed Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41827 Reviewed-by: Patrick Georgi <pgeorgi@google.com> 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>
2020-03-17src (minus soc and mainboard): Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I89b10076e0f4a4b3acd59160fb7abe349b228321 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39611 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-24drivers/i2c/rt1011: Add a driver for RT1011Cheng-Yi Chiang
RT1011 is a smart amplifier. It needs to know speaker related parameters including speaker resistor value and temperature when the calibration is done in order to run Dynamic Speaker Management (DSM) algorithm on chip. The purpose of DSM is to protect speaker when the volume is large. The calibration data of speaker is stored in VPD in factory. This driver is needed to read data from VPD and write to ACPI _DSD when config CHROMEOS_DSM_CALIB is turned on. Kernel rt1011 codec driver will read these device properties to set up codec accordingly on boot. The reason to prepare these parameters in coreboot is because kernel codec driver expects to read per-device parameters directly from device properties. Another benefit is that other OS can also take these parameters through ACPI _DSD table and take benefit of DSM on RT1011. The kernel driver device properties of RT1011 are documented at linux/Documentation/devicetree/bindings/sound/rt1011.txt It is currently in ASoC maintainer's tree at https://kernel.googlesource.com/pub/scm/linux/kernel/git/broonie/sound/+/for-next/ and hopefully should be merged to mainline kernel in the next merge window. BUG=b:140397934 BRANCH=none TEST=On Helios, with patch series, check realtek,r0_calib and realtek,temperature_calib are available to rt1011 codec driver. Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org> Change-Id: I9550b9890ce2cae787f4f17779a5ade77f619171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/36029 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>