Ivan Lipski 08236c3ef2 drm/amd/display: Write REFCLK to 48MHz on DCN21 ...

[Why&How]
dccg21_init() calls dccg2_init() which hardcodes 100MHz refclk values
for MICROSECOND_TIME_BASE_DIV and MILLISECOND_TIME_BASE_DIV. DCN21
uses 48MHz refclk, so the wrong values corrupt DCCG timing and cause eDP
link training failure on cold boot.

Write the correct 48MHz values directly instead of calling dccg2_init().

v2:
Fixed typo

Fixes: e6e2b956fc ("drm/amd/display: Add missing DCCG register entries for DCN20-DCN316")
Reported-by: Max Chernoff <git@maxchernoff.ca>
Tested-by: Max Chernoff <git@maxchernoff.ca>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

2026-05-27 10:35:16 -04:00

..

accel

accel/qaic: kcalloc + kzalloc to kzalloc

2026-05-12 10:20:40 -06:00

accessibility

…

acpi

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2026-05-01 16:32:42 -07:00

amba

…

android

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24 13:23:50 -07:00

ata

ata: pata_parport: switch to dynamic root device

2026-04-27 11:38:16 +02:00

atm

net: remove unused ATM protocols and legacy ATM device drivers

2026-04-23 12:21:14 -07:00

auxdisplay

auxdisplay: line-display: fix NULL dereference in linedisp_release

2026-03-27 09:54:31 +01:00

base

regmap: sdw-mbq: Fix spelling mistake "undeferable" -> "undeferrable"

2026-04-27 06:48:16 +09:00

bcma

…

block

Merge tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2026-04-24 15:06:55 -07:00

bluetooth

Bluetooth: hci_qca: Fix missing wakeup during SSR memdump handling

2026-04-13 09:19:42 -04:00

bus

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24 13:23:50 -07:00

cache

…

cdrom

cdrom, scsi: sr: propagate read-only status to block layer via set_disk_ro()

2026-04-27 15:52:51 -06:00

cdx

…

char

Merge tag 'for-next-tpm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

2026-04-25 16:20:52 -07:00

clk

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

2026-04-26 14:03:20 -07:00

clocksource

…

comedi

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24 13:23:50 -07:00

connector

…

counter

Merge tag 'v7.0-rc7' into char-misc-next

2026-04-06 09:04:53 +02:00

cpufreq

Merge tag 'devicetree-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2026-04-17 14:09:02 -07:00

cpuidle

Merge tag 'powerpc-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2026-04-14 17:10:15 -07:00

crypto

crypto: ccp - copy IV using skcipher ivsize

2026-04-16 17:37:03 +08:00

cxl

Merge tag 'cxl-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

2026-04-17 15:52:58 -07:00

dax

Merge tag 'libnvdimm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2026-04-21 14:12:01 -07:00

dca

…

devfreq

PM / devfreq: tegra30-devfreq: add support for Tegra114

2026-04-04 03:15:39 +09:00

dibs

…

dio

…

dma

Merge tag 'dmaengine-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

2026-04-17 10:29:01 -07:00

dma-buf

Merge tag 'drm-misc-next-2026-04-20' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2026-05-06 10:12:25 +10:00

dpll

dpll: export __dpll_pin_change_ntf() for use under dpll_lock

2026-04-30 11:37:39 +02:00

edac

Merge tag 'ras_core_for_v7.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-04-14 15:32:39 -07:00

eisa

…

extcon

…

firewire

…

firmware

Merge tag 'loongarch-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

2026-04-24 09:54:45 -07:00

fpga

fpga: m10bmc-sec: switch show_canceled_csk() to using sysfs_emit()

2026-03-25 14:57:26 +08:00

fsi

…

fwctl

fwctl: Fix class init ordering to avoid NULL pointer dereference on device removal

2026-04-10 11:21:06 -03:00

gnss

…

gpib

Merge tag 'v7.0-rc7' into char-misc-next

2026-04-06 09:04:53 +02:00

gpio

Merge tag 'gpio-fixes-for-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

2026-04-24 11:59:46 -07:00

gpu

drm/amd/display: Write REFCLK to 48MHz on DCN21

2026-05-27 10:35:16 -04:00

greybus

greybus: gb-beagleplay: bound bootloader receive buffering

2026-04-02 15:55:09 +02:00

hid

Merge tag 'input-for-v7.1-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2026-04-22 18:36:40 -07:00

hsi

HSI: omap_ssi_port: remove depends on ARM

2026-04-02 22:33:44 +02:00

hte

hte: tegra194: Add Tegra264 GTE support

2026-04-12 23:29:31 -07:00

hv

Merge tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel

2026-04-24 11:44:52 -07:00

hwmon

Merge tag 'hwmon-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2026-04-15 14:37:32 -07:00

hwspinlock

hwspinlock: u8500: delete driver

2026-04-06 09:43:18 -05:00

hwtracing

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24 13:23:50 -07:00

i2c

Merge tag 'i2c-host-7.1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow

2026-04-20 00:03:38 +02:00

i3c

i3c: mipi-i3c-hci: fix IBI payload length calculation for final status

2026-04-12 22:06:02 +02:00

idle

…

iio

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24 13:23:50 -07:00

infiniband

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2026-04-21 08:22:18 -07:00

input

Merge tag 'input-for-v7.1-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2026-04-22 18:36:40 -07:00

interconnect

Merge tag 'icc-7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next

2026-04-07 10:06:50 +02:00

iommu

Merge tag 'dma-mapping-7.1-2026-04-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

2026-04-17 11:12:42 -07:00

ipack

…

irqchip

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2026-04-17 07:18:03 -07:00

leds

leds: class: Make led_remove_lookup() NULL-aware

2026-04-09 13:49:19 +01:00

macintosh

…

mailbox

mailbox: mailbox-test: make data_ready a per-instance variable

2026-04-18 13:10:14 -05:00

mcb

…

md

Merge tag 'block-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2026-05-01 11:26:15 -07:00

media

Merge tag 'rpmsg-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux

2026-04-17 14:18:55 -07:00

memory

Merge tag 'dma-mapping-7.1-2026-04-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

2026-04-17 11:12:42 -07:00

memstick

…

message

…

mfd

Merge tag 'mfd-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2026-04-20 11:31:01 -07:00

misc

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24 13:23:50 -07:00

mmc

mmc: sdhci-msm: Fix the wrapped key handling

2026-04-10 10:29:58 +02:00

most

most: usb: Use kzalloc_objs for endpoint address array

2026-04-02 17:06:09 +02:00

mtd

mtd: spinand: winbond: Fix ODTR write VCR on W35NxxJW

2026-04-27 15:08:04 +02:00

mux

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24 13:23:50 -07:00

net

sfc: fix error code in efx_devlink_info_running_versions()

2026-04-30 13:44:30 +02:00

nfc

NFC: trf7970a: Ignore antenna noise when checking for RF field

2026-04-27 18:00:43 -07:00

ntb

Merge tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

2026-04-15 14:41:21 -07:00

nubus

…

nvdimm

Merge tag 'vfs-7.1-rc1.integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

2026-04-13 10:40:26 -07:00

nvme

Merge tag 'nvme-7.1-2026-04-24' of git://git.infradead.org/nvme into block-7.1

2026-04-27 15:47:21 -06:00

nvmem

Merge tag 'v7.0-rc7' into char-misc-next

2026-04-06 09:04:53 +02:00

of

Merge tag 'memblock-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

2026-04-18 11:29:14 -07:00

opp

…

parisc

parisc: led: fix reference leak on failed device registration

2026-04-17 15:46:46 +02:00

parport

parport: Remove completed item from to-do list

2026-04-02 17:05:56 +02:00

pci

Merge tag 'loongarch-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

2026-04-24 09:54:45 -07:00

pcmcia

Merge tag 'pcmcia-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux

2026-04-23 11:22:16 -07:00

peci

…

perf

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2026-04-14 16:48:56 -07:00

phy

Merge tag 'phy-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy

2026-04-17 10:22:08 -07:00

pinctrl

Merge tag 'pinctrl-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

2026-04-18 16:59:09 -07:00

platform

Merge tag 'platform-drivers-x86-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2026-04-20 12:02:24 -07:00

pmdomain

pmdomain: qcom: rpmhpd: Add power domains for Hawi SoC

2026-04-08 12:01:37 +02:00

pnp

…

power

Merge tag 'usb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2026-04-19 08:47:40 -07:00

powercap

powercap: intel_rapl: Consolidate PL4 and PMU support flags into rapl_defaults

2026-04-01 16:03:05 +02:00

pps

pps: change pps_class to a const struct

2026-04-02 16:33:00 +02:00

ps3

…

ptp

…

pwm

Merge tag 'pwm/fixes-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux

2026-04-23 08:37:07 -07:00

rapidio

…

ras

…

regulator

regulator: rpi-panel-attiny: add back GPIOLIB dependency

2026-04-30 13:12:29 +09:00

remoteproc

Merge tag 'rpmsg-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux

2026-04-17 14:18:55 -07:00

resctrl

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2026-04-20 16:46:22 -07:00

reset

Merge tag 'soc-late-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2026-04-23 08:57:24 -07:00

rpmsg

rpmsg: Constify buffer passed to send API

2026-04-06 09:37:51 -05:00

rtc

Merge tag 'rtc-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

2026-04-25 16:39:03 -07:00

s390

s390/sclp: Remove SCLP_OFB Kconfig option

2026-04-28 14:45:02 +02:00

sbus

…

scsi

cdrom, scsi: sr: propagate read-only status to block layer via set_disk_ro()

2026-04-27 15:52:51 -06:00

sh

…

siox

…

slimbus

…

soc

Merge tag 'rpmsg-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux

2026-04-17 14:18:55 -07:00

soundwire

Merge tag 'soundwire-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2026-04-17 10:16:53 -07:00

spi

spi: cadence: Probe and unbind fixes

2026-05-01 10:14:39 +09:00

spmi

…

ssb

…

staging

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24 13:23:50 -07:00

target

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2026-04-21 08:22:18 -07:00

tc

…

tee

Merge tag 'soc-drivers-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2026-04-16 20:34:34 -07:00

thermal

Merge tag 'bitmap-for-v7.1' of https://github.com/norov/linux

2026-04-14 08:55:18 -07:00

thunderbolt

Merge tag 'thunderbolt-for-v7.1-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

2026-04-10 13:10:28 +02:00

tty

Merge tag 'tty-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2026-04-19 08:44:41 -07:00

ufs

scsi: ufs: core: Disable timestamp for Kioxia THGJFJT0E25BAIP

2026-04-08 22:27:16 -04:00

uio

uio: replace deprecated mmap hook with mmap_prepare in uio_info

2026-04-05 13:53:44 -07:00

usb

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2026-04-21 08:22:18 -07:00

vdpa

vdpa: use generic driver_override infrastructure

2026-04-04 00:47:50 +02:00

vfio

vfio/cdx: Consolidate MSI configured state onto cdx_irqs

2026-04-21 12:01:22 -06:00

vhost

Merge tag 'net-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-04-23 16:50:42 -07:00

video

fbdev: hgafb: Request memory region before ioremap

2026-04-22 17:02:55 +02:00

virt

Merge tag 'tsm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm

2026-04-26 09:51:29 -07:00

virtio

Merge tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-04-15 12:59:16 -07:00

w1

w1: ds2490: drop redundant device reference

2026-04-03 10:55:12 +02:00

watchdog

watchdog: ni903x_wdt: Convert to a platform driver

2026-04-07 21:06:59 +02:00

xen

xen/privcmd: fix double free via VMA splitting

2026-04-23 15:32:59 +02:00

zorro

…

Kconfig

net: remove ISDN subsystem and Bluetooth CMTP

2026-04-23 10:24:02 -07:00

Makefile

net: remove ISDN subsystem and Bluetooth CMTP

2026-04-23 10:24:02 -07:00