Re: [PATCH v11 0/2] PWM support for HiFive Unleashed

[Yash Shah]

'On Mon, Mar 25, 2019 at 9:24 PM Andreas Schwab <schwab@xxxxxxx> wrote:
>
>
> I still don't see any improvement.  FYI, this is the patch I use for the
> device tree:
>

I am sharing you my test environment which has been working for me so
that you can duplicate at your end

I have tested the patch on Linux v5.0-rc1 commit id:
bfeffd155283772bbe78c6a05dec7c0128ee500c
with additional board related patches which can be found at
dev/yashs/pwm_5.0-rc1 branch of:
https://github.com/yashshah7/riscv-linux.git

I have compiled the dt file (found at above repo) and replaced the
compiled dtb file with 'fsbl/ux00_fsbl.dtb' and re-build fsbl.bin.
Make sure your dt file changes are getting reflected on target under
'/proc/device-tree/'

Below is the .config file content:

#
# Automatically generated file; DO NOT EDIT.
# Linux/riscv 5.0.0-rc1 Kernel Configuration
#

#
# Compiler: riscv64-unknown-elf-gcc (GCC) 7.2.0
#
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=70200
CONFIG_CLANG_VERSION=0
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_IRQ_WORK=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_CROSS_MEMORY_ATTACH=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_IRQ_DOMAIN=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_SPARSE_IRQ=y
CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
CONFIG_GENERIC_CLOCKEVENTS=y

#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
CONFIG_PREEMPT_NONE=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_GENERIC_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_CGROUP_BPF=y
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_CHECKPOINT_RESTORE=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_BPF=y
CONFIG_EXPERT=y
CONFIG_MULTIUSER=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_HAVE_FUTEX_CMPXCHG=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_BPF_SYSCALL=y
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
CONFIG_COMPAT_BRK=y
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
CONFIG_SLUB_CPU_PARTIAL=y
CONFIG_64BIT=y
CONFIG_RISCV=y
CONFIG_MMU=y
CONFIG_ZONE_DMA32=y
CONFIG_PAGE_OFFSET=0xffffffe000000000
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_CSUM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_PGTABLE_LEVELS=3

#
# Platform type
#
CONFIG_ARCH_RV64I=y
CONFIG_CMODEL_MEDANY=y
CONFIG_MODULE_SECTIONS=y
CONFIG_MAXPHYSMEM_128GB=y
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_TUNE_GENERIC=y
CONFIG_RISCV_ISA_C=y
CONFIG_RISCV_ISA_A=y
CONFIG_FPU=y

#
# Kernel features
#
CONFIG_HZ_250=y
CONFIG_HZ=250

#
# Boot options
#
CONFIG_CMDLINE="console=ttySIF0,115200 ignore_loglevel debug"
CONFIG_CMDLINE_FALLBACK=y

#
# General architecture-dependent options
#
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_HAVE_CLK=y
CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_CLONE_BACKWARDS=y

#
# GCOV-based kernel profiling
#
CONFIG_PLUGIN_HOSTCC="g++"
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_BLOCK=y
CONFIG_BLK_SCSI_REQUEST=y
CONFIG_BLK_DEV_BSG=y

#
# Partition Types
#
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_COREDUMP=y

#
# Memory Management options
#
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_NET=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NET_IP_TUNNEL=y
CONFIG_INET_TUNNEL=y
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_IPV6=y
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=y
CONFIG_IPV6_SIT=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_HAVE_NET_DSA=y
CONFIG_DNS_RESOLVER=y
CONFIG_NETLINK_DIAG=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
CONFIG_WIRELESS=y

#
# CFG80211 needs to be enabled for MAC80211
#
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_MAY_USE_DEVLINK=y
CONFIG_FAILOVER=y

#
# Device Drivers
#
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_DOMAINS_GENERIC=y
CONFIG_PCI_MSI=y
CONFIG_PCI_QUIRKS=y

#
# Cadence PCIe controllers support
#
CONFIG_PCIE_XILINX=y

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_DEVTMPFS=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_DMA_SHARED_BUFFER=y

#
# Bus devices
#
CONFIG_DTC=y
CONFIG_OF=y
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_NET=y
CONFIG_OF_MDIO=y
CONFIG_BLK_DEV=y
CONFIG_CDROM=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_VIRTIO_BLK=y

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y

#
# SCSI Transports
#
CONFIG_SCSI_LOWLEVEL=y
CONFIG_ATA=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=y
CONFIG_SATA_MOBILE_LPM_POLICY=0
CONFIG_SATA_AHCI_PLATFORM=y
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
CONFIG_ATA_BMDMA=y

#
# IEEE 1394 (FireWire) support
#
CONFIG_NETDEVICES=y
CONFIG_NET_CORE=y
CONFIG_VIRTIO_NET=y

#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_NET_VENDOR_ADAPTEC=y
CONFIG_NET_VENDOR_AGERE=y
CONFIG_NET_VENDOR_ALACRITECH=y
CONFIG_NET_VENDOR_ALTEON=y
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_NET_VENDOR_AMD=y
CONFIG_NET_VENDOR_AQUANTIA=y
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ATHEROS=y
CONFIG_NET_VENDOR_AURORA=y
CONFIG_NET_VENDOR_BROADCOM=y
CONFIG_NET_VENDOR_BROCADE=y
CONFIG_NET_VENDOR_CADENCE=y
CONFIG_MACB=y
CONFIG_MACB_USE_HWSTAMP=y
CONFIG_NET_VENDOR_CAVIUM=y
CONFIG_CAVIUM_PTP=y
CONFIG_NET_VENDOR_CHELSIO=y
CONFIG_NET_VENDOR_CISCO=y
CONFIG_NET_VENDOR_CORTINA=y
CONFIG_NET_VENDOR_DEC=y
CONFIG_NET_VENDOR_DLINK=y
CONFIG_NET_VENDOR_EMULEX=y
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_HP=y
CONFIG_NET_VENDOR_HUAWEI=y
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E1000E=y
CONFIG_NET_VENDOR_MARVELL=y
CONFIG_NET_VENDOR_MELLANOX=y
CONFIG_NET_VENDOR_MICREL=y
CONFIG_NET_VENDOR_MICROCHIP=y
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MYRI=y
CONFIG_NET_VENDOR_NATSEMI=y
CONFIG_NET_VENDOR_NETERION=y
CONFIG_NET_VENDOR_NETRONOME=y
CONFIG_NET_VENDOR_NI=y
CONFIG_NET_VENDOR_8390=y
CONFIG_NET_VENDOR_NVIDIA=y
CONFIG_NET_VENDOR_OKI=y
CONFIG_NET_VENDOR_PACKET_ENGINES=y
CONFIG_NET_VENDOR_QLOGIC=y
CONFIG_NET_VENDOR_QUALCOMM=y
CONFIG_NET_VENDOR_RDC=y
CONFIG_NET_VENDOR_REALTEK=y
CONFIG_R8169=y
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
CONFIG_NET_VENDOR_SAMSUNG=y
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SOLARFLARE=y
CONFIG_NET_VENDOR_SILAN=y
CONFIG_NET_VENDOR_SIS=y
CONFIG_NET_VENDOR_SMSC=y
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_NET_VENDOR_SUN=y
CONFIG_NET_VENDOR_SYNOPSYS=y
CONFIG_NET_VENDOR_TEHUTI=y
CONFIG_NET_VENDOR_TI=y
CONFIG_NET_VENDOR_VIA=y
CONFIG_NET_VENDOR_WIZNET=y
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_PHYLIB=y
CONFIG_SWPHY=y

#
# MII PHY device drivers
#
CONFIG_FIXED_PHY=y
CONFIG_MICROSEMI_PHY=y
CONFIG_REALTEK_PHY=y
CONFIG_USB_NET_DRIVERS=y
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
CONFIG_WLAN_VENDOR_ATH=y
CONFIG_WLAN_VENDOR_ATMEL=y
CONFIG_WLAN_VENDOR_BROADCOM=y
CONFIG_WLAN_VENDOR_CISCO=y
CONFIG_WLAN_VENDOR_INTEL=y
CONFIG_WLAN_VENDOR_INTERSIL=y
CONFIG_WLAN_VENDOR_MARVELL=y
CONFIG_WLAN_VENDOR_MEDIATEK=y
CONFIG_WLAN_VENDOR_RALINK=y
CONFIG_WLAN_VENDOR_REALTEK=y
CONFIG_WLAN_VENDOR_RSI=y
CONFIG_WLAN_VENDOR_ST=y
CONFIG_WLAN_VENDOR_TI=y
CONFIG_WLAN_VENDOR_ZYDAS=y
CONFIG_WLAN_VENDOR_QUANTENNA=y

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
CONFIG_NET_FAILOVER=y

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_FOCALTECH=y
CONFIG_MOUSE_PS2_SMBUS=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_LIBPS2=y

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_DEVMEM=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_OF_PLATFORM=y

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_SIFIVE=y
CONFIG_SERIAL_SIFIVE_CONSOLE=y
CONFIG_HVC_DRIVER=y
CONFIG_HVC_RISCV_SBI=y
CONFIG_HW_RANDOM=m
CONFIG_DEVPORT=y

#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_POWER_SUPPLY=y
CONFIG_HWMON=y

#
# Native drivers
#
CONFIG_SSB_POSSIBLE=y
CONFIG_BCMA_POSSIBLE=y

#
# Graphics support
#
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
CONFIG_DRM=y
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
CONFIG_DRM_TTM=y

#
# I2C encoder or helper chips
#
CONFIG_DRM_RADEON=y

#
# ACP (Audio CoProcessor) Configuration
#

#
# AMD Library routines
#
CONFIG_DRM_PANEL=y

#
# Display Panels
#
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y

#
# Frame buffer hardware drivers
#
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y

#
# HID support
#
CONFIG_HID=y
CONFIG_HID_GENERIC=y

#
# USB HID support
#
CONFIG_USB_HID=y

#
# I2C HID support
#
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y

#
# USB Host Controller Drivers
#
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_PCI=y
CONFIG_USB_XHCI_PLATFORM=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
CONFIG_USB_EHCI_HCD_PLATFORM=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
CONFIG_USB_OHCI_HCD_PLATFORM=y

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
CONFIG_USB_UAS=y

#
# USB Physical Layer drivers
#
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
CONFIG_LEDS_PWM=y

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_PANIC=y
CONFIG_LEDS_TRIGGER_NETDEV=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_MMIO=y

#
# Microsoft Hyper-V guest support
#
CONFIG_CLKDEV_LOOKUP=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Common Clock Framework
#
CONFIG_CLK_ANALOGBITS_WRPLL_CLN28HPC=y
CONFIG_CLK_SIFIVE=y
CONFIG_CLK_SIFIVE_FU540_PRCI=y

#
# Clock Source drivers
#
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
CONFIG_RISCV_TIMER=y
CONFIG_IOMMU_SUPPORT=y

#
# Xilinx SoC drivers
#
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
CONFIG_PWM_SIFIVE=y

#
# IRQ chip support
#
CONFIG_IRQCHIP=y
CONFIG_ARM_GIC_MAX_NR=1
CONFIG_SIFIVE_PLIC=y

#
# PHY Subsystem
#
CONFIG_RAS=y

#
# File systems
#
CONFIG_FS_IOMAP=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_JBD2=y
CONFIG_FS_MBCACHE=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_FILE_LOCKING=y
CONFIG_MANDATORY_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_MEMFD_CREATE=y
CONFIG_MISC_FILESYSTEMS=y
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
CONFIG_NFS_V4=y
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=y
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
CONFIG_ROOT_NFS=y
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"

#
# Security options
#
CONFIG_KEYS=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=m
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=m
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=m
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_ENGINE=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_ECHAINIV=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_SHA256=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y

#
# Random Number Generation
#
CONFIG_CRYPTO_DRBG_MENU=m
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG=m
CONFIG_CRYPTO_JITTERENTROPY=m
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_VIRTIO=m

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_RATIONAL=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_CRC16=y
CONFIG_CRC32=y
CONFIG_CRC32_SLICEBY8=y
CONFIG_ZLIB_INFLATE=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_INTERVAL_TREE=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_SWIOTLB=y
CONFIG_SGL_ALLOC=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_NLATTR=y
CONFIG_LIBFDT=y
CONFIG_OID_REGISTRY=y
CONFIG_FONT_SUPPORT=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SG_POOL=y
CONFIG_SBITMAP=y

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4

#
# Compile-time checks and compiler options
#
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
CONFIG_DEBUG_KERNEL=y

#
# Memory Debugging
#
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y

#
# Debug Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_SCHED_DEBUG=y

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_DEBUG_BUGVERBOSE=y

#
# RCU Debugging
#
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_BRANCH_PROFILE_NONE=y
CONFIG_RUNTIME_TESTING_MENU=y

- Yash
> Andreas.
>
> --
> Andreas Schwab, SUSE Labs, schwab@xxxxxxx
> GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
> "And now for something completely different."