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linux/drivers
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Paul Cercueil 86733ab239 clk: ingenic: jz4760: Update M/N/OD calculation algorithm 
commit ecfb9f4047 upstream.

The previous algorithm was pretty broken.

- The inner loop had a '(m > m_max)' condition, and the value of 'm'
  would increase in each iteration;

- Each iteration would actually multiply 'm' by two, so it is not needed
  to re-compute the whole equation at each iteration;

- It would loop until (m & 1) == 0, which means it would loop at most
  once.

- The outer loop would divide the 'n' value by two at the end of each
  iteration. This meant that for a 12 MHz parent clock and a 1.2 GHz
  requested clock, it would first try n=12, then n=6, then n=3, then
  n=1, none of which would work; the only valid value is n=2 in this
  case.

Simplify this algorithm with a single for loop, which decrements 'n'
after each iteration, addressing all of the above problems.

Fixes: bdbfc02937 ("clk: ingenic: Add support for the JZ4760")
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221214123704.7305-1-paul@crapouillou.net
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-14 19:18:03 +01:00
..
accessibility
tty: fix possible null-ptr-defer in spk_ttyio_release
2023-01-24 07:22:46 +01:00
acpi
ACPI: processor idle: Practically limit "Dummy wait" workaround to old Intel systems
2023-02-06 07:59:01 +01:00
amba
ARM: 9120/1: Revert "amba: make use of -1 IRQs warn"
2021-11-06 14:13:31 +01:00
android
binder: validate alloc->mm in ->mmap() handler
2022-12-02 17:41:00 +01:00
ata
ata: libata: Fix sata_down_spd_limit() when no link speed is reported
2023-02-09 11:26:37 +01:00
atm
atm: idt77252: fix use-after-free bugs caused by tst_timer
2022-08-25 11:40:15 +02:00
auxdisplay
auxdisplay: lcd2s: Use proper API to free the instance of charlcd object
2022-03-08 19:12:47 +01:00
base
driver core: Fix test_async_probe_init saves device in wrong array
2023-02-01 08:27:14 +01:00
bcma
…
block
block: handle bio_split_to_limits() NULL return
2023-01-18 11:48:58 +01:00
bluetooth
Bluetooth: hci_qca: Fix driver shutdown on closed serdev
2023-01-24 07:22:42 +01:00
bus
bus: sunxi-rsb: Fix error handling in sunxi_rsb_init()
2023-02-09 11:26:32 +01:00
cdrom
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char
ipmi: fix use after free in _ipmi_destroy_user()
2023-01-12 11:58:57 +01:00
clk
clk: ingenic: jz4760: Update M/N/OD calculation algorithm
2023-02-14 19:18:03 +01:00
clocksource
clocksource/drivers/timer-ti-dm: Fix missing clk_disable_unprepare in dmtimer_systimer_init_clock()
2022-12-31 13:14:04 +01:00
comedi
comedi: adv_pci1760: Fix PWM instruction handling
2023-01-24 07:22:45 +01:00
connector
…
counter
counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update
2022-12-31 13:14:30 +01:00
cpufreq
cpufreq: governor: Use kobject release() method to free dbs_data
2023-02-01 08:27:29 +01:00
cpuidle
cpuidle: dt: Return the correct numbers of parsed idle states
2022-12-31 13:14:01 +01:00
crypto
crypto: ccp - Add support for TEE for PCI ID 0x14CA
2023-01-12 11:58:58 +01:00
cxl
cxl/port: Hold port reference until decoder release
2022-07-12 16:34:58 +02:00
dax
devdax: Fix soft-reservation memory description
2022-09-28 11:11:57 +02:00
dca
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devfreq
PM/devfreq: governor: Add a private governor_data for governor
2023-01-12 11:58:51 +01:00
dio
drivers: dio: fix possible memory leak in dio_init()
2022-12-31 13:14:27 +01:00
dma
dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init
2023-02-06 07:59:00 +01:00
dma-buf
dma-buf: fix racing conflict of dma_heap_add()
2022-12-02 17:41:06 +01:00
edac
EDAC/qcom: Do not pass llcc_driv_data as edac_device_ctl_info's pvt_info
2023-02-01 08:27:25 +01:00
eisa
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extcon
extcon: usbc-tusb320: fix kernel-doc warning
2023-02-06 07:59:01 +01:00
firewire
firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region
2023-02-09 11:26:32 +01:00
firmware
efi: Accept version 2 of memory attributes table
2023-02-09 11:26:41 +01:00
fpga
fpga: stratix10-soc: Fix return value check in s10_ops_write_init()
2023-02-09 11:26:44 +01:00
fsi
WRITE is "data source", not destination...
2023-02-09 11:26:34 +01:00
gnss
…
gpio
gpio: mxc: Unlock on error path in mxc_flip_edge()
2023-02-01 08:27:28 +01:00
gpu
drm/i915: Fix potential bit_17 double-free
2023-02-09 11:26:45 +01:00
greybus
greybus: svc: fix an error handling bug in gb_svc_hello()
2022-04-08 14:22:50 +02:00
hid
HID: playstation: sanity check DualSense calibration data.
2023-02-06 07:59:00 +01:00
hsi
HSI: omap_ssi_core: Fix error handling in ssi_init()
2022-12-31 13:14:32 +01:00
hv
video: hyperv_fb: Avoid taking busy spinlock on panic path
2022-12-31 13:14:39 +01:00
hwmon
hwmon: (jc42) Fix missing unlock on error in jc42_write()
2022-12-31 13:14:44 +01:00
hwspinlock
hwspinlock: qcom: correct MMIO max register for newer SoCs
2022-11-16 09:58:13 +01:00
hwtracing
coresight: trbe: remove cpuhp instance node before remove cpuhp state
2022-12-31 13:14:30 +01:00
i2c
i2c: rk3x: fix a bunch of kernel-doc warnings
2023-02-09 11:26:39 +01:00
i3c
i3c: master: dw: check return of dw_i3c_master_get_free_pos()
2022-03-08 19:12:37 +01:00
idle
intel_idle: Disable IBRS during long idle
2022-07-23 12:54:04 +02:00
iio
iio:adc:twl6030: Enable measurement of VAC
2023-02-09 11:26:47 +01:00
infiniband
RDMA/usnic: use iommu_map_atomic() under spin_lock()
2023-02-14 19:17:58 +01:00
input
Input: i8042 - add Clevo PCX0DX to i8042 quirk table
2023-02-09 11:26:41 +01:00
interconnect
interconnect: imx: fix max_node_id
2022-08-17 14:23:53 +02:00
iommu
iommu/mediatek-v1: Fix an error handling path in mtk_iommu_v1_probe()
2023-01-18 11:48:52 +01:00
ipack
…
irqchip
irqchip/wpcm450: Fix memory leak in wpcm450_aic_of_init()
2022-12-31 13:14:03 +01:00
isdn
mISDN: hfcmulti: don't call dev_kfree_skb/kfree_skb() under spin_lock_irqsave()
2022-12-31 13:14:37 +01:00
leds
leds: lm3601x: Don't use mutex after it was destroyed
2022-10-26 12:34:39 +02:00
macintosh
macintosh/macio-adb: check the return value of ioremap()
2022-12-31 13:14:35 +01:00
mailbox
mailbox: zynq-ipi: fix error handling while device_register() fails
2022-12-31 13:14:39 +01:00
mcb
mcb: mcb-parse: fix error handing in chameleon_parse_gdd()
2022-12-31 13:14:30 +01:00
md
block: handle bio_split_to_limits() NULL return
2023-01-18 11:48:58 +01:00
media
media: s5p-mfc: Fix in register read and write for H264
2023-01-12 11:59:06 +01:00
memory
memory: mvebu-devbus: Fix missing clk_disable_unprepare in mvebu_devbus_probe()
2023-02-01 08:27:03 +01:00
memstick
memstick/ms_block: Add check for alloc_ordered_workqueue
2022-12-31 13:14:17 +01:00
message
…
mfd
mfd: mt6360: Add bounds checking in Regmap read/write call-backs
2023-01-12 11:58:47 +01:00
misc
mei: me: add meteor lake point M DID
2023-01-24 07:22:47 +01:00
mmc
mmc: sdhci-esdhc-imx: correct the tuning start tap and step setting
2023-01-24 07:22:45 +01:00
most
most: fix control-message timeouts
2021-11-18 19:16:08 +01:00
mtd
mtd: spi-nor: Check for zero erase size in spi_nor_find_best_erase_type()
2023-01-12 11:58:57 +01:00
mux
…
net
net: USB: Fix wrong-direction WARNING in plusb.c
2023-02-14 19:18:02 +01:00
nfc
nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()
2023-01-18 11:48:54 +01:00
ntb
NTB: ntb_tool: uninitialized heap data in tool_fn_write()
2022-08-25 11:40:14 +02:00
nubus
…
nvdimm
nvdimm: Fix badblocks clear off-by-one error
2022-07-07 17:53:24 +02:00
nvme
nvme: fix passthrough csi check
2023-02-01 08:27:28 +01:00
nvmem
nvmem: core: fix cell removal on error
2023-02-09 11:26:45 +01:00
of
of/address: Return an error when no valid dma-ranges are found
2023-02-14 19:17:57 +01:00
opp
opp: Fix error check in dev_pm_opp_attach_genpd()
2022-08-17 14:24:01 +02:00
parisc
parisc: led: Fix potential null-ptr-deref in start_task()
2023-01-12 11:58:59 +01:00
parport
parport_pc: Avoid FIFO port location truncation
2022-11-26 09:24:36 +01:00
pci
PCI/sysfs: Fix double free in error path
2023-01-12 11:58:58 +01:00
pcmcia
pcmcia: db1xxx_ss: restrict to MIPS_DB1XXX boards
2022-06-14 18:36:02 +02:00
perf
perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init()
2022-12-31 13:13:58 +01:00
phy
phy: qcom-qmp-combo: fix runtime suspend
2023-02-09 11:26:46 +01:00
pinctrl
pinctrl: intel: Restore the pins that used to be in Direct IRQ mode
2023-02-14 19:18:02 +01:00
platform
platform/x86: gigabyte-wmi: add support for B450M DS3H WIFI-CF
2023-02-09 11:26:40 +01:00
pnp
PNP: fix name memory leak in pnp_alloc_dev()
2022-12-31 13:14:02 +01:00
power
power: supply: fix null pointer dereferencing in power_supply_get_battery_info
2022-12-31 13:14:33 +01:00
powercap
powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
2022-10-26 12:35:30 +02:00
pps
pps: clients: gpio: Propagate return value from pps_gpio_probe
2022-04-08 14:23:44 +02:00
ps3
…
ptp
ptp: replace snprintf with sysfs_emit
2022-04-13 20:59:01 +02:00
pwm
pwm: tegra: Fix 32 bit build
2022-12-31 13:14:48 +01:00
rapidio
rapidio: devices: fix missing put_device in mport_cdev_open
2022-12-31 13:14:05 +01:00
ras
…
regulator
regulator: da9211: Use irq handler when ready
2023-01-18 11:48:53 +01:00
remoteproc
remoteproc: core: Do pm_relax when in RPROC_OFFLINE state
2023-01-12 11:58:59 +01:00
reset
reset: uniphier-glue: Fix possible null-ptr-deref
2023-02-01 08:27:04 +01:00
rpmsg
rpmsg: qcom: glink: replace strncpy() with strscpy_pad()
2022-10-12 09:53:28 +02:00
rtc
rtc: ds1347: fix value written to century register
2023-01-12 11:58:56 +01:00
s390
block: handle bio_split_to_limits() NULL return
2023-01-18 11:48:58 +01:00
sbus
…
scsi
scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress
2023-02-09 11:26:39 +01:00
sh
maple: fix wrong return value of maple_bus_init().
2021-11-25 09:48:31 +01:00
siox
siox: fix possible memory leak in siox_device_add()
2022-11-26 09:24:36 +01:00
slimbus
slimbus: stream: correct presence rate frequencies
2022-11-26 09:24:44 +01:00
soc
PM: AVS: qcom-cpr: Fix an error handling path in cpr_probe()
2023-02-01 08:27:06 +01:00
soundwire
ASoC/SoundWire: dai: expand 'stream' concept beyond SoundWire
2023-01-12 11:58:49 +01:00
spi
spi: dw: Fix wrong FIFO level setting for long xfers
2023-02-14 19:18:02 +01:00
spmi
spmi: pmic-arb: correct duplicate APID to PPID mapping logic
2022-10-26 12:35:19 +02:00
ssb
…
staging
staging: mt7621-dts: change some node hex addresses to lower case
2023-01-24 07:22:46 +01:00
target
scsi: target: core: Fix warning on RT kernels
2023-02-09 11:26:39 +01:00
tc
…
tee
tee: optee: fix possible memory leak in optee_register_device()
2022-12-02 17:41:03 +01:00
thermal
thermal: intel: int340x: Add locking to int340x_thermal_get_trip_type()
2023-02-01 08:27:28 +01:00
thunderbolt
thunderbolt: Use correct function to calculate maximum USB3 link rate
2023-01-24 07:22:46 +01:00
tty
serial: 8250_dma: Fix DMA Rx rearm race
2023-02-09 11:26:46 +01:00
uio
uio: uio_dmem_genirq: Fix deadlock between irq config and handling
2022-12-31 13:14:27 +01:00
usb
usb: typec: altmodes/displayport: Fix probe pin assign check
2023-02-14 19:18:03 +01:00
vdpa
vduse: Validate vq_num in vduse_validate_config()
2023-01-24 07:22:41 +01:00
vfio
vfio: platform: Do not pass return buffer to ACPI _RST method
2022-12-31 13:14:27 +01:00
vhost
vhost/net: Clear the pending messages when the backend is removed
2023-02-09 11:26:34 +01:00
video
fbdev: smscufx: fix error handling code in ufx_usb_probe
2023-02-09 11:26:47 +01:00
virt
vboxguest: Do not use devm for irq
2022-08-25 11:40:33 +02:00
virtio
virtio_pci: modify ENOENT to EINVAL
2023-01-24 07:22:41 +01:00
visorbus
…
vlynq
…
vme
vme: Fix error not catched in fake_init()
2022-12-31 13:14:30 +01:00
w1
w1: fix WARNING after calling w1_process()
2023-02-01 08:27:14 +01:00
watchdog
watchdog: diag288_wdt: fix __diag288() inline assembly
2023-02-09 11:26:41 +01:00
xen
fix "direction" argument of iov_iter_kvec()
2023-02-09 11:26:34 +01:00
zorro
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Kconfig
firmware: include drivers/firmware/Kconfig unconditionally
2021-10-07 16:51:26 +02:00
Makefile
virtio: always enter drivers/virtio/
2021-12-22 09:32:39 +01:00