Marek Vasut 29faeb388a i2c: mxs: Rework the PIO mode operation ... Analyze and rework the PIO mode operation. The PIO mode operation was unreliable on MX28, by analyzing the bus with LA, the checks for when data were available or were to be sent were wrong. The PIO WRITE has to be completely reworked as it multiple problems. The MX23 datasheet helped here, see comments in the code for details. The problems boil down to: - RUN bit in CTRL0 must be set after DATA register was written - The PIO transfer must be 4 bytes long tops, otherwise use clock stretching. Both of these fixes are implemented. The PIO READ operation can only be done for up to four bytes as we are unable to read out the data from the DATA register fast enough. This patch also tries to document the investigation within the code. Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>		2013-10-06 15:56:26 +02:00
..
accessibility
acpi	ACPI / scan: fix typo in comments of acpi_bus_unregister_driver()	2013-09-25 19:46:48 +02:00
amba
ata	update contact information for Mikael Pettersson	2013-09-25 13:27:42 -07:00
atm	atm: nicstar: fix regression made by previous patch	2013-09-15 22:18:55 -04:00
auxdisplay
base	driver core : Fix use after free of dev->parent in device_shutdown	2013-09-26 14:46:11 -07:00
bcma
block	cciss: fix info leak in cciss_ioctl32_passthru()	2013-09-24 17:00:26 -07:00
bluetooth
bus
cdrom
char	Bug-fixes:	2013-09-25 15:50:53 -07:00
clk
clocksource	clocksource: em_sti: Set cpu_possible_mask to fix SMP broadcast	2013-09-26 02:31:04 +02:00
connector
cpufreq	cpufreq: exynos5440: Fix potential NULL pointer dereference	2013-09-25 03:25:58 +02:00
cpuidle	ACPI and power management fixes for 3.12-rc1	2013-09-12 11:22:45 -07:00
crypto
dca
devfreq
dio
dma	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
edac
eisa
extcon
firewire
firmware	firmware/dmi_scan: drop OOM messages	2013-09-11 15:58:51 -07:00
fmc
gpio	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
gpu	drm: nouveau: Don't use i2c_client->driver	2013-10-03 22:28:28 +02:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2013-09-17 21:54:05 -04:00
hsi
hv	Drivers: hv: vmbus: Terminate vmbus version negotiation on timeout	2013-09-26 14:20:22 -07:00
hwmon	hwmon: (applesmc) Check key count before proceeding	2013-09-26 03:48:43 -07:00
hwspinlock
i2c	i2c: mxs: Rework the PIO mode operation	2013-10-06 15:56:26 +02:00
ide
idle
iio	iio:buffer_cb: Add missing iio_buffer_init()	2013-09-21 12:52:50 +01:00
infiniband	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2013-09-15 07:13:39 -04:00
iommu	IOMMU Updates for Linux v3.12	2013-09-12 11:29:26 -07:00
ipack
irqchip
isdn	isdn: hfcpci_softirq: get func return to suppress compiler warning	2013-09-15 22:27:04 -04:00
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2013-09-12 11:35:33 -07:00
lguest
macintosh
mailbox	mailbox: remove unnecessary platform_set_drvdata()	2013-09-18 12:02:00 -07:00
md	A set of device-mapper fixes for 3.12.	2013-09-25 15:12:46 -07:00
media	media: core: Don't use i2c_client->driver	2013-10-03 22:28:23 +02:00
memory
memstick	memstick: add support for legacy memorysticks	2013-09-11 15:59:35 -07:00
message
mfd	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
misc	misc: (at24) move header to linux/platform_data/	2013-09-30 06:02:34 +02:00
mmc	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
mtd	mtd: nand: pxa3xx: Remove unneeded ifdef CONFIG_OF	2013-09-17 09:08:14 -07:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-09-19 13:57:28 -05:00
nfc
ntb
nubus
of	Merge branch 'for-v3.12-fix' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping	2013-09-11 19:11:59 -07:00
oprofile
parisc
parport
pci	PCI: Workaround missing pci_set_master in pci drivers	2013-09-28 13:25:30 -07:00
pcmcia
pinctrl
platform	Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86	2013-09-15 17:42:59 -04:00
pnp	pnp: change pnp bus pm_ops to invoke pnp driver dev_pm_ops if specified	2013-09-11 15:58:15 -07:00
power	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
pps	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
ps3
ptp
pwm
rapidio
regulator
remoteproc
reset
rpmsg
rtc	rtc: simplify devm_request_mem_region/devm_ioremap	2013-09-11 15:58:59 -07:00
s390	s390/vmcore: use vmcore for zfcpdump	2013-09-11 15:59:15 -07:00
sbus
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-09-19 13:57:28 -05:00
sfi
sh
sn
spi	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
ssb
staging	staging: r8188eu: Add new device ID	2013-09-26 16:44:45 -07:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2013-09-12 16:11:45 -07:00
tc
thermal
tty	TTY/Serial fixes for 3.12-rc3	2013-09-29 13:47:00 -07:00
uio
usb	usb: dwc3: add support for Merrifield	2013-09-26 16:22:29 -07:00
uwb
vfio
vhost	vhost-scsi: whitespace tweak	2013-09-17 22:56:09 +03:00
video	video: mxsfb: Add missing break	2013-09-26 15:33:23 +03:00
virt
virtio
vlynq
vme
w1	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
watchdog	Merge git://www.linux-watchdog.org/linux-watchdog	2013-09-12 08:45:53 -07:00
xen	Bug-fixes:	2013-09-25 15:50:53 -07:00
zorro
Kconfig
Makefile