WSL2-Linux-Kernel/drivers
Tomi Valkeinen 2dab0bab6b drm/omap: handle incompatible buffer stride and pixel size
omapdrm doesn't check if the pitch of the framebuffer and the color
format's bits-per-pixel are compatible. omapdss requires that the stride
of a buffer is an integer number of pixels

For example, when using modetest with a display that has x resolution of
1280, and using packed 24 RGB mode (3 bytes per pixel), modetest
allocates a buffer with a byte stride of 4 * 1280 = 5120. But 5120 / 3 =
1706.666... pixels, which causes wrong colors and a tilt on the screen.

Add a check into omapdrm to return an error if the user tries to use
such a combination.

Note: this is not a HW requirement at least for non-rotation use cases,
but a SW driver requirement. In the future we should study if also
rotation use cases are fine with any stride size, and if so, change the
driver to allow these strides.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-03-24 13:50:55 +02:00
..
accessibility
acpi Merge branch 'acpi-video' 2015-03-06 01:29:16 +01:00
amba
android android: binder: fix binder mmap failures 2015-03-01 18:43:51 -08:00
ata
atm
auxdisplay
base Merge branches 'pm-domains' and 'pm-cpufreq' 2015-03-06 01:29:31 +01:00
bcma
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-02-28 10:21:57 -08:00
bluetooth Bluetooth: btusb: Fix issue with CSR based Intel Wireless controllers 2015-02-23 09:30:35 +02:00
bus
cdrom
char
clk clk: at91: implement suspend/resume for the PMC irqchip 2015-03-04 22:11:17 +01:00
clocksource clocksource: pxa: Fix section mismatch 2015-02-25 10:28:55 +01:00
connector
coresight
cpufreq Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal 2015-03-06 13:43:33 -08:00
cpuidle cpuidle / sleep: Use broadcast timer for states that stop local timer 2015-03-05 23:13:19 +01:00
crypto
dca
devfreq
dio
dma dmaengine: mmp_pdma: fix warning about slave caps 2015-03-05 22:15:35 +05:30
dma-buf
edac
eisa
extcon
firewire
firmware * Fix regression in DMI sysfs code for handling "End of Table" entry 2015-03-02 14:18:57 +01:00
fmc
gpio gpio: tps65912: fix wrong container_of arguments 2015-02-23 15:40:32 +01:00
gpu drm/omap: handle incompatible buffer stride and pixel size 2015-03-24 13:50:55 +02:00
hid HID: microsoft: Add ID for NE7K wireless keyboard 2015-02-23 15:28:40 +01:00
hsi
hv
hwmon hwmon: (ads7828) Check return value of devm_regmap_init_i2c 2015-02-22 20:10:30 -08:00
hwspinlock
i2c i2c: designware-baytrail: baytrail_i2c_acquire() might sleep 2015-03-07 01:08:26 +01:00
ide
idle
iio Second round of IIO fixes for the 4.0 cycle (or round one part two really!) 2015-02-28 07:19:27 -08:00
infiniband Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-02-22 17:42:14 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-02-21 12:59:04 -08:00
iommu
ipack
irqchip Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-02-21 19:41:38 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-03-03 15:30:07 -08:00
leds
lguest
macintosh
mailbox
mcb
md md: mark some attributes as pre-alloc 2015-02-25 11:38:46 +11:00
media
memory
memstick
message
mfd
misc mei: make device disabled on stop unconditionally 2015-03-01 19:34:50 -08:00
mmc The clock framework changes for 3.20 contain the usual driver additions, 2015-02-21 12:30:30 -08:00
mtd
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-03-03 15:30:07 -08:00
nfc
ntb
nubus
of
oprofile
parisc
parport
pci PCI: versatile: Update for list_for_each_entry() API change 2015-02-28 00:47:00 +01:00
pcmcia
phy
pinctrl
platform Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-02-21 11:12:07 -08:00
pnp Merge branches 'pnp', 'pm-cpuidle' and 'pm-cpufreq' 2015-02-21 04:29:16 +01:00
power
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator
remoteproc
reset
rpmsg
rtc Merge branch 'irq-pm' 2015-03-06 01:29:05 +01:00
s390
sbus
scsi SCSI misc on 20150221 2015-02-21 19:16:42 -08:00
sfi
sh drivers: sh: Disable PM runtime for multi-platform r8a7740 with genpd 2015-02-24 07:26:12 +09:00
sn
soc
spi
spmi
ssb
staging staging: comedi: adv_pci1710: fix AI INSN_READ for non-zero channel 2015-03-01 19:25:59 -08:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-02-21 13:21:19 -08:00
tc
thermal thermal: Make sysfs attributes of cooling devices default attributes 2015-03-05 01:47:57 -04:00
thunderbolt
tty TTY/Serial fixes for 4.0-rc3 2015-03-08 12:25:40 -07:00
uio
usb USB fixes for 4.0-rc3 2015-03-08 12:47:18 -07:00
uwb
vfio
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-03-03 15:30:07 -08:00
video
virt
virtio
vlynq
vme
w1
watchdog watchdog: at91sam9: request the irq with IRQF_NO_SUSPEND 2015-03-06 00:46:31 +01:00
xen xen-scsiback: mark pvscsi frontend request consumed only after last read 2015-02-23 16:30:25 +00:00
zorro
Kconfig
Makefile