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46d8a07b4ae262e2fec6ce2aa454e06243661265
linux/drivers
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David Lechner 46d8a07b4a drm/sitronix/st7586: fix bad pixel data due to byte swap 
Correctly set dbi->write_memory_bpw for the ST7586 driver. This driver
is for a monochrome display that has an unusual data format, so the
default value set in mipi_dbi_spi_init() is not correct simply because
this controller is non-standard.

Previously, we were using dbi->swap_bytes to make the same sort of
workaround, but it was removed in the same commit that added
dbi->write_memory_bpw, so we need to use the latter now to have the
correct behavior.

This fixes every 3 columns of pixels being swapped on the display. There
are 3 pixels per byte, so the byte swap caused this effect.

Fixes: df3fb27a74 ("drm/mipi-dbi: Make bits per word configurable for pixel transfers")
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20260228-drm-mipi-dbi-fix-st7586-byte-swap-v1-1-e78f6c24cd28@baylibre.com
2026-03-07 17:14:09 -06:00
..
accel
accel: ethosu: Handle possible underflow in IFM size calculations
2026-03-05 15:21:17 -06:00
accessibility
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
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acpi
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amba
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android
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2026-02-22 08:26:33 -08:00
ata
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2026-02-21 20:03:00 -08:00
atm
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2026-02-22 08:26:33 -08:00
auxdisplay
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base
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bcma
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block
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bluetooth
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bus
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cache
…
cdrom
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cdx
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char
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clk
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clocksource
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comedi
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connector
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counter
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cpufreq
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cpuidle
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crypto
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cxl
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2026-02-21 17:09:51 -08:00
dax
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2026-02-21 17:09:51 -08:00
dca
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
devfreq
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2026-02-21 20:03:00 -08:00
dibs
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dio
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dma
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dma-buf
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2026-02-21 20:03:00 -08:00
dpll
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edac
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eisa
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extcon
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firewire
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firmware
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2026-02-21 20:03:00 -08:00
fpga
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fsi
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fwctl
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2026-02-21 17:09:51 -08:00
gnss
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2026-02-21 17:09:51 -08:00
gpib
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2026-02-21 20:03:00 -08:00
gpio
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2026-02-21 20:03:00 -08:00
gpu
drm/sitronix/st7586: fix bad pixel data due to byte swap
2026-03-07 17:14:09 -06:00
greybus
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
2026-02-21 20:03:00 -08:00
hid
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hsi
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hte
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hv
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hwmon
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2026-02-22 08:26:33 -08:00
hwspinlock
Merge tag 'soc-drivers-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2026-02-10 20:45:30 -08:00
hwtracing
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2026-02-21 20:03:00 -08:00
i2c
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i3c
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idle
…
iio
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infiniband
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input
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interconnect
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2026-02-21 17:09:51 -08:00
iommu
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ipack
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2026-02-21 20:03:00 -08:00
irqchip
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isdn
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leds
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macintosh
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2026-02-21 20:03:00 -08:00
mailbox
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
mcb
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
md
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media
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memory
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memstick
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message
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mfd
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2026-02-21 20:03:00 -08:00
misc
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2026-02-21 20:03:00 -08:00
mmc
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most
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2026-02-21 17:09:51 -08:00
mtd
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mux
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net
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2026-02-22 08:26:33 -08:00
nfc
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2026-02-21 17:09:51 -08:00
ntb
Merge tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2026-02-21 11:02:58 -08:00
nubus
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
nvdimm
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nvme
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nvmem
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of
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opp
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parisc
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parport
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pci
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2026-02-21 20:03:00 -08:00
pcmcia
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peci
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2026-02-21 17:09:51 -08:00
perf
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2026-02-21 20:03:00 -08:00
phy
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2026-02-21 17:09:51 -08:00
pinctrl
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2026-02-21 20:03:00 -08:00
platform
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pmdomain
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pnp
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power
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2026-02-21 17:09:51 -08:00
powercap
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pps
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ps3
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ptp
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2026-02-21 17:09:51 -08:00
pwm
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rapidio
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ras
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regulator
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remoteproc
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2026-02-21 17:09:51 -08:00
resctrl
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reset
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rpmsg
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2026-02-21 17:09:51 -08:00
rtc
Merge tag 'rtc-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2026-02-22 09:43:11 -08:00
s390
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
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sbus
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scsi
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sh
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siox
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slimbus
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soc
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2026-02-21 20:03:00 -08:00
soundwire
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spi
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spmi
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ssb
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staging
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target
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tc
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tee
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thermal
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thunderbolt
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tty
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ufs
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uio
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usb
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vdpa
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vfio
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2026-02-21 20:03:00 -08:00
vhost
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video
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2026-02-21 20:03:00 -08:00
virt
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virtio
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w1
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watchdog
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xen
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zorro
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Kconfig
…
Makefile
phy: enter drivers/phy/Makefile even without CONFIG_GENERIC_PHY
2026-02-04 20:45:26 +05:30