Ben Dooks [Tue, 19 Jan 2010 08:49:59 +0000 (17:49 +0900)]
ARM: Merge next-samsung-clock2
Merge branch 'next-samsung-clock2' into next-samsung-try5
Ben Dooks [Tue, 19 Jan 2010 08:48:35 +0000 (17:48 +0900)]
ARM: Merge next-samsung-devupdates1
Merge branch 'next-samsung-devupdates1' into next-samsung-try5
Ben Dooks [Tue, 19 Jan 2010 08:47:39 +0000 (17:47 +0900)]
ARM: Merge next-jassi-spi
Merge branch 'next-jassi-spi' into next-samsung-try5
Ben Dooks [Tue, 19 Jan 2010 08:42:25 +0000 (17:42 +0900)]
ARM: Merge next-s3c6410-andygreen
Merge branch 'next-s3c6410-andygreen' into next-samsung-try5
Ben Dooks [Tue, 19 Jan 2010 08:42:02 +0000 (17:42 +0900)]
ARM: Merge next-samsung-mc-adc
Merge branch 'next-samsung-mc-adc' into next-samsung-try5
Conflicts:
arch/arm/mach-s3c6400/include/mach/map.h
(fix ADC and RTC merge)
Ben Dooks [Mon, 18 Jan 2010 07:24:22 +0000 (16:24 +0900)]
ARM: S3C24XX: Add mci platform data set call s3c24xx_mci_set_platdata().
Add a s3c24xx_mci_set_platdata() call for all the machine files that have
platform data for the MCI driver. This brings the MCI device into line with
the other devices with __initdata and a specific call to ensure the right
structure type is being passed.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Fri, 15 Jan 2010 06:09:20 +0000 (15:09 +0900)]
ARM: MINI2440: Remove commented out devices from device array
There's no point in having these in until there is proper support for
them, so remove as they only confuse the device changing script.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Wed, 13 Jan 2010 05:59:46 +0000 (14:59 +0900)]
ARM: SAMSUNG: Add platform data registration for OHCI
Add a platform data helper for the OHCI device
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 12 Jan 2010 06:15:28 +0000 (15:15 +0900)]
ARM: SAMSUNG: Make UART device code common
Move s3c24xx_uart_devs, s3c24xx_uart_src and the platform devices to a
common entry in plat-samsung since they are the same in all the current
implementations.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Jassi Brar [Mon, 18 Jan 2010 08:32:02 +0000 (17:32 +0900)]
ARM: S3C64XX: SPI: Define SPI controller devices
Platform devices for SPI Controller of S3C64XX are defined and exported for
machines to include. Also, controller setup helper functions are defined for
machine code to set runtime configuration of the controller and the bus.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Jassi Brar [Mon, 18 Jan 2010 08:45:52 +0000 (17:45 +0900)]
ARM: S3C64XX: SPI: Header for passing platform data
We need a way to pass controller specific information to the SPI driver.
For that purpose new headers are made.
SPI Controller is assumed 'type-s3c64xx' and can be defined for newer SoCs.
Hence, that part is placed under plat-samsung to be shared across newer SoCs.
SoC specific part - spi source clocks, will be placed
under plat-<soc>/include/plat/
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Jassi Brar [Mon, 18 Jan 2010 07:15:08 +0000 (16:15 +0900)]
ARM: S3C64XX: SPI: Define SPI-48M clock sources
Defined special 48MHz clock sources for SPI-0,1.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Jassi Brar [Mon, 18 Jan 2010 07:15:07 +0000 (16:15 +0900)]
ARM: S3C64XX: SPI: Add SPI controller register base
Added SPI controller register base.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Mon, 18 Jan 2010 06:57:42 +0000 (15:57 +0900)]
ARM: SAMSUNG: Fix bug in clksrc-clk round_rate call.
The call has been assuming all clksrc-clks' divider size is 4 bits, but
this may not be the case anymore. Use the reg_div.size parameter to
calculate the maximum value it can take and check against that.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Mon, 18 Jan 2010 06:37:25 +0000 (15:37 +0900)]
ARM: SAMSUNG: Fix clksrc-clk's checks for bad register settings
The WARN_ON() was only checking the first clock in the array, instead of
being executed for each clksrc clock being registered.
Since this is an array of clocks, WARN_ON() does not provide a lot of
useful information about the problem, so change to using printk(KERN_ERR)
to report the problem to the console.
As a note, we still try and register the clock even if these problems are
present just in case and to avoid changing the behaviour of the registration
process.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Thomas Abraham [Mon, 18 Jan 2010 05:30:16 +0000 (14:30 +0900)]
ARM: SAMSUNG: Add check to ensure that clksrc_clk does have multiple clock sources
Adds a additional check in s3c_set_clksrc function to ensure that the clksrc_clk
does have a choice of multiple clock sources. In addition to this, a check is
added to ensure that a parent is assigned to the clksrc_clk in case it does not
have a choice of parent clocks.
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Mon, 18 Jan 2010 04:24:01 +0000 (13:24 +0900)]
ARM: S5PC1XX: Register pd0 and hd0 clocks, remove unecessary dummy_enable
The clk_hd0 and clk_pd0 where given a local dummy_enable call due to
not being registered with the clock code, which they really should have
been. Register these two clocks and remove the clk_dummy_enable as this
is done by the default clock registration code.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Andy Green [Tue, 29 Dec 2009 14:40:43 +0000 (14:40 +0000)]
ARM: SMDK6410: Add comments on ethernet connectivity
LAN9115 Ethernet only works on SMDK6410 if certain switches
are set in specific ways. Document the requirement.
Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Andy Green [Tue, 29 Dec 2009 14:40:30 +0000 (14:40 +0000)]
ARM: S3C64XX: Add virtual mapping for S3C64XX SROM area
This adds the physical address of the SROM unit, and
applies a virtual mapping for it to the S3C_VA_MEM
slot.
Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Andy Green [Tue, 29 Dec 2009 14:40:36 +0000 (14:40 +0000)]
ARM: SMDK6410: Add nC1 chipselect SROM setup
Since the mach-smdk6410.c file claims it can start up the
smsc9115 ethernet device on the board, it should take care
about configuring the necessary chip select nCS1 so it can
see the chip. The select defaults to 8-bit mode so without
config the Ethernet doesn't work.
This patch uses the new SROM definitions to set nCS1 to the
state found in the Samsung U-Boot port for 6410. It may be
more conservative that it needs to be since those settings
were marked as for CS8900A also using this chip select.
But this change is enough to get the ethernet working when
booted with Qi.
Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Andy Green [Tue, 29 Dec 2009 14:40:23 +0000 (14:40 +0000)]
ARM: S3C64XX: Add SROM register definitions
This introduces a platform file for s3c64xx that defines
the SROM unit registers that control chip select
characteristics.
Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Mon, 18 Jan 2010 00:35:29 +0000 (09:35 +0900)]
ARM: Merge next-s3c64xx
Merge branch 'next-s3c64xx' into next-samsung
Conflicts:
arch/arm/mach-s3c6400/include/mach/map.h
( ADC and RTC PA merge fixed)
Maurus Cuelenaere [Wed, 13 Jan 2010 23:30:34 +0000 (00:30 +0100)]
ARM: S3C64XX: Add S3C64XX support to the generic Samsung ADC driver
Add S3C64XX support to the generic Samsung ADC driver
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Maurus Cuelenaere [Wed, 13 Jan 2010 23:30:31 +0000 (00:30 +0100)]
ARM: SAMSUNG: Move S3C24XX ADC driver to plat-samsung
Move S3C24XX ADC driver to plat-samsung
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Jassi Brar [Wed, 6 Jan 2010 06:33:44 +0000 (15:33 +0900)]
ARM: S3C64XX: Add I2S resources in platform code
Define resources needed by the I2S drivers in platform code.
Audio cfg_gpio callback and IORESOURCE_DMA are added.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Maurus Cuelenaere [Tue, 12 Jan 2010 00:40:14 +0000 (01:40 +0100)]
ARM: S3C64XX: Add S3C64XX RTC platform driver
Add S3C64XX RTC platform driver
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Sun, 29 Nov 2009 14:34:56 +0000 (14:34 +0000)]
ARM: S3C2412: Fixup commented out device in SMDK2413
The SMDK2413 has a commented out device that does not have any setup
data for it, so remove it for now.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Mon, 23 Nov 2009 00:13:39 +0000 (00:13 +0000)]
ARM: S3C: Rename s3c_device_usb to s3c_device_ohci
Prepare for the forthcoming device changes by renaming s3c_device_usb to
s3c_device_ohci as this is what the device represents.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Wed, 13 Jan 2010 23:23:53 +0000 (08:23 +0900)]
ARM: S5P6440: Add serial port support
This patch adds UART serial port support for S5P6440 CPU. Most of the
serial support of Samsung's 6400 CPU is reused for 6440 CPU.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Wed, 13 Jan 2010 23:23:04 +0000 (08:23 +0900)]
ARM: S5P6440: Add configuration file
This patch adds Samsung's S5P6440 default configuration file.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Wed, 13 Jan 2010 23:22:00 +0000 (08:22 +0900)]
ARM: S5P6440: Add Board support file
This patch adds Samsung's SMDK6440 board support file.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Wed, 13 Jan 2010 23:19:36 +0000 (08:19 +0900)]
ARM: S5P6440: Add new Kconfig and Makefiles
This patch adds the Kconfig and Makefile for the new S5P6440 machine
and platform directories. It also updates arch/arm Kconfig and Makefiles
to include the support for the new S5P6440 CPU.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Wed, 13 Jan 2010 23:15:39 +0000 (08:15 +0900)]
ARM: S5P6440: Add Timer support
This patch adds timer support for S5P6440 CPU.
Signed-off-by: Atul Dahiya <atul.dahiya@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Wed, 13 Jan 2010 23:14:40 +0000 (08:14 +0900)]
ARM: S5P6440: Add IRQ support
This patch adds IRQ support for S5P6440 CPU.
Signed-off-by: Adityapratap Sharma <aditya.ps@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Wed, 13 Jan 2010 23:13:37 +0000 (08:13 +0900)]
ARM: S5P6440: Add Clock and PLL support
This patch adds clock and pll support for S5P6440. This patch are based on
Harald Welte's patches and Ben's plat-samsung.
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Thu, 14 Jan 2010 06:29:17 +0000 (15:29 +0900)]
ARM: S5P6440: Add new CPU initialization support
This patch adds Samsung's S5P6440 CPU support.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 12 Jan 2010 05:13:58 +0000 (14:13 +0900)]
ARM: S5PC1XX: Use common UART IRQ handling code
Use the common UART IRQ handling code for the S5PC100 system.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Thu, 7 Jan 2010 05:41:38 +0000 (14:41 +0900)]
ARM: S5PC1XX: Move to using standard timer IRQ handling code
Move to using the standard VIC/Timer IRQ handling code added previously
to avoid duplicating code.
Thanks to Marek Szyprowski for pointing out dual Kconfig change.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 12 Jan 2010 04:10:59 +0000 (13:10 +0900)]
ARM: S5PC1XX: Remove definitions deleted by previous clksrc changes
Remove the definitions we've deleted in the previous updates to the
clksrc_clk for arch/arm/plat-s5pc1xx/include/plat/regs-clock.h.
Added comments about the removal to the clock header since we only need
these defines in one place (and they've now been removed there) we get
rid of them from the header.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 12 Jan 2010 03:52:43 +0000 (12:52 +0900)]
ARM: SAMSUNG: Add script to change old clksrc_clk to new register defs
This script is used to change the old style clksrc_clk as originally
found in plat-s3c64xx to the new style. It is here for reference if needed
for future code merges.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 12 Jan 2010 03:49:17 +0000 (12:49 +0900)]
ARM: S5PC1XX: Change clksrc_clks to use array of clocks
Remove the individual 'struct clksrc_clks' and place them into an array
so that we can simply use s3c_register_clksrcs to register tham all in one
go.
Since the spdif clock relies on the audio clock, move the audio clocks
into their own arrary.
Thanks to Marek Szyprowski for testing and pointing out the four clocks
what where missed from the clock list.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 12 Jan 2010 03:39:58 +0000 (12:39 +0900)]
ARM: S5PC1XX: Move clock definitions around ready to turn into clksrc arrays
Move the clock definitions around ready to turn the clocks into an array
of clocks and register them in one go.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 12 Jan 2010 03:19:28 +0000 (12:19 +0900)]
ARM: S5PC1XX: Move to using generic clksrc_clk for clock code
Remove the copy of the old s3c64xx struct clksrc_clk and use the new one
in plat-samsung. This eliminates a bug in the set_parent() call where it
failed to set the clk->parent after sucesfully updating the clock.
The script that was used to automate much of the process will be supplied
seperately.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Mon, 11 Jan 2010 03:21:51 +0000 (12:21 +0900)]
ARM: SAMSUNG: Add config option for number of additional GPIO pins.
This patch adds a configuration option for specifing the number
of additional GPIO pins to be used in addition to the GPIO pins
supported onchip.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Wed, 6 Jan 2010 23:59:26 +0000 (08:59 +0900)]
ARM: Add common entry code for system with two VICs
Add a common entry-macro-vic2.S for systems where there are two VICs
so that the machine or platform directories just need to setup the
correct information before including <asm/entry-macro-vic2.S> into
their own entry-macro.S file.
Since this code is from the S3C64XX project, we update the S3C64XX
machine entry code to use this new header.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Wed, 6 Jan 2010 02:18:44 +0000 (11:18 +0900)]
ARM: SAMSUNG: Move IRQ UART handling for newer devices to plat-samsung
Move the handling for the UART interrupts out of the s3c64xx specific
code and into plat-samsung so that it can be used by all implementations
that need it.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Wed, 6 Jan 2010 01:14:51 +0000 (10:14 +0900)]
ARM: SAMSUNG: Move IRQ VIC timer handling out to common header files
Move the VIC based timer interrupt handling out of plat-s3c64xx and
into plat-samsung to be re-used for other systems. This also reduces
the code size as we now have a common init routine and use the irq_desc
to store the interrupt number of the timer.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 5 Jan 2010 17:28:20 +0000 (02:28 +0900)]
ARM: SAMSUNG: Move gpio-config.c into plat-samsung
The arch/arm/plat-s3c/gpio-config.c file is common to pretty much all the Samsung
SoCs, so move it to arch/arm/plat-samsung
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 5 Jan 2010 17:45:09 +0000 (02:45 +0900)]
ARM: SAMSUNG: Move device definitions in plat-samsung
Move all the platform device definitions from plat-s3c into plat-samsung
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 5 Jan 2010 17:39:28 +0000 (02:39 +0900)]
ARM: SAMSUNG: Move pwm-clock code into plat-samsung
Move the code for the pwm-clock into plat-samsung, as it is common to
all Samsung SoCs.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Kukjin Kim [Thu, 14 Jan 2010 03:50:23 +0000 (12:50 +0900)]
ARM: SAMSUNG: Make clk_default_setrate and clk_ops_def_setrate visible
This patch makes clk_default_setrate and clk_ops_def_setrate available
to code outside plat-samsung clock code.
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 5 Jan 2010 16:53:25 +0000 (01:53 +0900)]
ARM: SAMSUNG: Do not register set_parent call if no source
If there is no source register defined, do not register a clksrc
clock with a valid .set_parent in the ops.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 5 Jan 2010 16:21:38 +0000 (01:21 +0900)]
ARM: SAMSUNG: Add call to register array of clocks
Add s3c_register_clocks() to register an array of clocks, printing
an error message if there is a problem. Replace all points in the code
where this could be used.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 5 Jan 2010 16:07:57 +0000 (01:07 +0900)]
ARM: SAMSUNG: Do not allow get/set/round rate calls with no divider
If the reg_div field is not set, then do not register clk_ops with the
get/set/round rate calls as these will fail to work.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Wed, 23 Dec 2009 18:43:48 +0000 (18:43 +0000)]
ARM: SAMSUNG: Move clock.c to arch/arm/plat-samsung
This is the core implementation of the clock code for all Samsung based
SoCs, so move it to arch/arm/plat-samsung (the clock.h file has already
been moved).
Since the file is built for every Samsung SoC, no changes are needed to the
Kconfig system.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Wed, 9 Dec 2009 00:08:35 +0000 (00:08 +0000)]
ARM: S3C64XX: Avoid announcing clksrc clocks twice
The new code calls the clock setup code on registration which
can be before the clock system has been fully initialised. The
following code re-does this setup at the end of the clock
registration and thus we get two printings.
Update the calls to only print on the last pass or when doing
the necessary resume work.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 8 Dec 2009 01:26:07 +0000 (01:26 +0000)]
ARM: S3C64XX: Fixup .reg_src and .reg_div with named initialisers
Change these two fields to have named initialisers as per the
review comments from Kyungmin Park.
sed used:
s@\.reg_src\(.*\)=\(.*\){\(.*\),\(.*\),\(.*\)}@.reg_src\1=\2{ .reg =\3, .shift =\4, .size =\5 }@g
s@\.reg_div\(.*\)=\(.*\){\(.*\),\(.*\),\(.*\)}@.reg_div\1=\2{ .reg =\3, .shift =\4, .size =\5 }@g
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 1 Dec 2009 01:24:37 +0000 (01:24 +0000)]
ARM: SAMSUNG: Reduce size of struct clk.
Reduce the size of struct clk by 12 bytes and make defining clocks with
common implementation functions easier by moving the set_rate, get_rate,
round_rate and set_parent calls into a new structure called 'struct clk_ops'
and using that instead.
This change does make a few clocks larger as they need their own clk_ops,
but this is outweighed by the number of clocks with either no ops or having
a common set of ops.
Update all the users of this.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Harald Welte [Tue, 1 Dec 2009 01:24:36 +0000 (01:24 +0000)]
ARM: S3C64XX: Remove unused clock definitions from clock header
Clean out the definitions we are no longer using after the new clock
code updates.
Signed-off-by: Harald Welte <laforge@gnumonks.org>
[ben-linux@fluff.org: split from initial patch provided]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Tue, 1 Dec 2009 01:24:35 +0000 (01:24 +0000)]
ARM: S3C64XX: Use new clock-clksrc.c code for clocks.
Move the s3c6400-clock.c implementation over to use the new common
plat-samsung based clock-clksrc.c.
Note, this does not delete the clocks definitions that are now unused
in the regs-clock.h to reduce the quantity of change in this commit.
Based on original patches by Harald Welte.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Harald Welte [Tue, 1 Dec 2009 01:24:34 +0000 (01:24 +0000)]
ARM: SAMSUNG: Add core clock implementation for clksrc based clocks
Add a core for the clksrc clock implementation, which is found in many of
the newer Samsung SoCs into plat-samsung.
Signed-off-by: Harald Welte <laforge@gnumonks.org>
[ben-linux@fluff.org: split from original patch to make change smaller]
[ben-linux@fluff.org: split clk and clksrc changes]
[ben-linux@fluff.org: moved to plat-samsung from plat-s3c]
[ben-linux@fluff.org: re-wrote headers after splits]
[ben-linux@fluff.org: added better documentation to headers]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Mon, 30 Nov 2009 01:31:32 +0000 (01:31 +0000)]
ARM: S3C64XX: Compress s3c6400-clock.c code
The individually named clocks are all static to the code
and thus can be compressed into a single array and then
the array can be referenced. This removes the need for
a seperate array of pointers to clocks.
Fix a minor problem of re-initialising the pointers in
s3c6400_set_clksrc() as this is also called by the cpufreq
code. Move these initialisations to the code that does the
registration.
Based on Harald Welte's original clock changes patch.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Mon, 30 Nov 2009 01:10:57 +0000 (01:10 +0000)]
ARM: S3C64XX: Cleanup common init code in s3c6400-clock.c
Remove the four fields from clksrc_clk.clk which are always the same
and init them when the clock is registered. This helps remove the amount
of repeated code.
This is a re-work of Harald Welte's clock changes for the latest kernel.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Mon, 30 Nov 2009 00:40:47 +0000 (00:40 +0000)]
ARM: SAMSUNG: Move <plat/clock.h> to plat-samsung
Move the <plat/clock.h> header to plat-samsung where it can be used by all
the platforms, and readies it for the next round of clock updates where
the clock code will be amalgamated.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks [Fri, 15 Jan 2010 08:04:42 +0000 (17:04 +0900)]
ARM: MINI2440: Fixup __initdata usage
Remove some of the __initdata tags which are currently inappropriate for
platform_device and some of the platform data. These can be returned once
support for copying platform devices and data is added.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Uri Yosef [Fri, 15 Jan 2010 07:56:05 +0000 (16:56 +0900)]
ARM: MINI2440: Fix crash on boot due to improper __initdata qualifier
This patch fix mini2440 crash on boot due to improper __initdata
qualifier on mini2440_led1_pdata.
Signed-off-by: Uri Yosef <uri.yosef@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Mark Brown [Wed, 13 Jan 2010 13:57:04 +0000 (13:57 +0000)]
ARM: SMDK6410: Specify no GPIO for B_PWR_5V regulator
Since the fixed voltage regulator grew support for GPIO based
enables and GPIO 0 is valid on some systems we need to specify
that there is no valid GPIO enable control.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ramax Lo [Thu, 14 Jan 2010 02:15:05 +0000 (10:15 +0800)]
ARM: S3C: NAND: Check the existence of nr_map before copying
Since the structure field nr_map is optional, we need to check whether the
chip number map is provided to avoid unexpected NULL pointer exception.
Signed-off-by: Ramax Lo <ramaxlo@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Linus Torvalds [Thu, 14 Jan 2010 00:13:57 +0000 (16:13 -0800)]
Merge branch 'drm-linus' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: change drm set mode messages as DRM_DEBUG
drm: fix crtc no modes printf + typo
drm/radeon/kms: only evict to GTT if CP is ready
drm/radeon/kms: Fix crash getting TV info with no BIOS.
drm/radeon/kms/rv100: reject modes > 135 Mhz on DVI (v2)
drm/radeon/kms/r6xx+: make irq handler less verbose
drm/radeon/kms: fix up LVDS handling on macs (v2)
Benjamin Herrenschmidt [Wed, 13 Jan 2010 05:19:34 +0000 (16:19 +1100)]
zlib: Fix build of powerpc boot wrapper
Commit
ac4c2a3bbe5db5fc570b1d0ee1e474db7cb22585 broke the build
of all powerpc boot wrappers.
It attempts to add an include of autoconf.h but used the wrong
path for it. It also adds -D__KERNEL__ to our boot wrapper, both
things that we pretty much didn't do on purpose so far.
We want our boot wrapper to remain independent enough of the kernel
for various reasons, one of them being that you can "wrap" an existing
kernel at distro install time which allows to ship one kernel image
and a set of boot wrappers for different platforms, the wrappers
don't have to be built out of the same kernel build tree.
It's also incorrect to do what the patch does in our boot environment
since we may not have a proper alignment exception handler which means
we may not be able to fixup the few cases where an unaligned access will
need SW emulation (depends on the core variant, could be when crossing
page or segment boundaries for example).
This patch fixes it by putting the old code back in and using the
new "fancy" variant only when CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
is set, which happens not to be set on powerpc since we don't include
autoconf.h. It also reverts the changes to our boot wrapper Makefile.
This means that x86 should, afaik, keep the optimisations since its
boot wrapper does include autoconf.h and define __KERNEL__ (though I
doubt they make that much different outside of slow embedded processors).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 14 Jan 2010 00:10:13 +0000 (16:10 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: wacom: Add BTN_TOOL_FINGER for pad button reporting
HID: add device IDs for new model of Apple Wireless Keyboard
HID: fix pad button definition in hid-wacom
HID: Support 171 byte variant of Samsung USB IR receiver
HID: blacklist ET&T TC5UH touchscreen controller
Linus Torvalds [Thu, 14 Jan 2010 00:09:59 +0000 (16:09 -0800)]
Merge branch 'for-33' of git://repo.or.cz/linux-kbuild
* 'for-33' of git://repo.or.cz/linux-kbuild:
Makefile: do not override LC_CTYPE
kbuild: really fix bzImage build with non-bash sh
OGAWA Hirofumi [Wed, 13 Jan 2010 12:14:09 +0000 (21:14 +0900)]
vfs: Fix vmtruncate() regression
If __block_prepare_write() was failed in block_write_begin(), the
allocated blocks can be outside of ->i_size.
But new truncate_pagecache() in vmtuncate() does nothing if new < old.
It means the above usage is not working anymore.
So, this patch fixes it by removing "new < old" check. It would need
more cleanup/change. But, now -rc and truncate working is in progress,
so, this tried to fix it minimum change.
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 13 Jan 2010 21:42:49 +0000 (13:42 -0800)]
Merge branch 'fasync-helper'
* fasync-helper:
fasync: split 'fasync_helper()' into separate add/remove functions
Michal Marek [Fri, 8 Jan 2010 11:25:37 +0000 (12:25 +0100)]
Makefile: do not override LC_CTYPE
Setting LC_CTYPE=C breaks localized messages in some setups. With only
LC_COLLATE=C and LC_NUMERIC=C, we get almost all we need, except for not
so defined character classes and tolower()/toupper(). The former is not
a big issue, because we can assume that e.g. [:alpha:] will always
include a-zA-Z and we only ever process ASCII input. The latter seems
only affect arch/sh/tools/gen-mach-types, which we can handle separately.
So after this patch the meaning of ranges like [a-z], the behavior of
sort and join, etc. should be the same everywhere and at the same time
gcc should be able to print localized waring and error messages.
LC_NUMERIC=C might not be necessary, but setting it doesn't hurt.
Reported-by: Simon Horman <horms@verge.net.au>
Reported-by: Sergei Trofimovich <slyfox@inbox.ru>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Tested-by: Simon Horman <horms@verge.net.au>
Tested-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Jonathan Nieder [Mon, 28 Dec 2009 19:38:27 +0000 (19:38 +0000)]
kbuild: really fix bzImage build with non-bash sh
In an x86 build with CONFIG_KERNEL_LZMA enabled and dash as sh,
arch/x86/boot/compressed/vmlinux.bin.lzma ends with
'\xf0\x7d\x39\x00' (16 bytes) instead of the 4 bytes intended and
the resulting vmlinuz fails to boot. This improves on the
previous behavior, in which the file contained the characters
'-ne ' as well, but not by much.
Previous commits replaced "echo -ne" first with "/bin/echo -ne",
then "printf" in the hope of improving portability, but none of
these commands is guaranteed to support hexadecimal escapes on
POSIX systems. So use the shell to convert from hexadecimal to
octal.
With this change, an LZMA-compressed kernel built with dash as sh
boots correctly again.
Reported-by: Sebastian Dalfuß <sd@sedf.de>
Reported-by: Oliver Hartkopp <oliver@hartkopp.net>
Reported-by: Michael Guntsche <mike@it-loops.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Cc: Michael Tokarev <mjt@tls.msk.ru>
Cc: Alek Du <alek.du@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Przemo Firszt [Sat, 9 Jan 2010 14:20:03 +0000 (15:20 +0100)]
HID: wacom: Add BTN_TOOL_FINGER for pad button reporting
Without this patch xf86-input-wacom driver wasn't able to properly recognise
pad button events. It was also causing some problems with button mapping.
Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Christian Schuerer-Waldheim [Wed, 6 Jan 2010 13:49:57 +0000 (14:49 +0100)]
HID: add device IDs for new model of Apple Wireless Keyboard
Added device IDs for the new model of the Apple Wireless Keyboard
(November 2009).
Signed-off-by: Christian Schuerer-Waldheim <csw@xray.at>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Przemo Firszt [Mon, 4 Jan 2010 11:32:00 +0000 (12:32 +0100)]
HID: fix pad button definition in hid-wacom
This fix is required for xorg driver to recognise 2 pad buttons
Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Dave Airlie [Wed, 13 Jan 2010 06:17:38 +0000 (16:17 +1000)]
Merge remote branch 'korg/drm-radeon-next' into drm-linus
* korg/drm-radeon-next
drm/radeon/kms: only evict to GTT if CP is ready
drm/radeon/kms: Fix crash getting TV info with no BIOS.
drm/radeon/kms/rv100: reject modes > 135 Mhz on DVI (v2)
drm/radeon/kms/r6xx+: make irq handler less verbose
drm/radeon/kms: fix up LVDS handling on macs (v2)
Dave Young [Wed, 13 Jan 2010 05:38:59 +0000 (13:38 +0800)]
drm: change drm set mode messages as DRM_DEBUG
Following drm info repeat 207 times during one hour, it's quite annoying
[ 1266.286747] [drm] TV-19: set mode NTSC 480i 0
Change from DRM_INFO to DRM_DEBUG
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Wed, 13 Jan 2010 06:15:11 +0000 (16:15 +1000)]
drm: fix crtc no modes printf + typo
Toralf Förster pointed out the typo, the fact I forget the if
statement is purely personal fail.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Wed, 13 Jan 2010 05:15:00 +0000 (21:15 -0800)]
Linux 2.6.33-rc4
Linus Torvalds [Wed, 13 Jan 2010 05:13:06 +0000 (21:13 -0800)]
Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
pmu_battery: Fix battery full reporting
Bryn M. Reeves [Thu, 12 Nov 2009 18:31:54 +0000 (18:31 +0000)]
[SCSI] megaraid_sas: remove sysfs poll_mode_io world writeable permissions
/sys/bus/pci/drivers/megaraid_sas/poll_mode_io defaults to being
world-writable, which seems bad (letting any user affect kernel driver
behavior).
This turns off group and user write permissions, so that on typical
production systems only root can write to it.
Signed-off-by: Bryn M. Reeves <bmr@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 13 Jan 2010 05:04:04 +0000 (21:04 -0800)]
Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux:
OMAP: DSS2: OMAPFB: fix crash when panel driver was not loaded
OMAP: DSS2: Reject scaling settings when they cannot be supported
OMAP: DSS2: Make check-delay-loops consistent
OMAP: DSS2: OMAPFB: fix omapfb_free_fbmem()
video/omap: add __init/__exit macros to drivers/video/omap/lcd_htcherald.c
OMAP: DSS2: Fix compile warning
MAINTAINERS: Combine DSS2 and OMAPFB2 into one entry
MAINTAINERS: change omapfb maintainer
OMAP: OMAPFB: add dummy release function for omapdss
OMAP: OMAPFB: fix clk_get for RFBI
OMAP: DSS2: RFBI: convert to new kfifo API
OMAP: DSS2: Fix crash when panel doesn't define enable_te()
OMAP: DSS2: Collect interrupt statistics
OMAP: DSS2: DSI: print debug DCS cmd in hex
OMAP: DSS2: DSI: fix VC channels in send_short and send_null
Dave Chinner [Tue, 12 Jan 2010 06:39:16 +0000 (17:39 +1100)]
lib: Introduce generic list_sort function
There are two copies of list_sort() in the tree already, one in the DRM
code, another in ubifs. Now XFS needs this as well. Create a generic
list_sort() function from the ubifs version and convert existing users
to it so we don't end up with yet another copy in the tree.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Jones [Tue, 12 Jan 2010 21:59:52 +0000 (16:59 -0500)]
remove my email address from checkpatch.
Maybe this will stop people emailing me about it.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 13 Jan 2010 04:56:20 +0000 (20:56 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: retry link resume if necessary
ata_piix: enable 32bit PIO on SATA piix
sata_promise: don't classify overruns as HSM errors
Linus Torvalds [Wed, 13 Jan 2010 04:56:01 +0000 (20:56 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: Ensure ARMv6/7 mm files are built using appropriate assembler options
ARM: Fix wrong dmb
ARM: 5874/1: serial21285: fix disable_irq-from-interrupt-handler deadlock
ARM: 5873/1: ARM: Fix the reset logic for ARM RealView boards
ARM: 5872/1: ARM: include needed linux/cpu.h in asm/cpu.h
ARM: 5871/1: arch/arm: Fix build failure for lpd7a404_defconfig caused by missing includes
ARM: 5870/1: arch/arm: Fix build failure for defconfigs without CONFIG_ISA_DMA_API set
ARM: 5868/1: ARM: fix "BUG: using smp_processor_id() in preemptible code"
ARM: 5867/1: Update U300 defconfig
ARM: 5866/1: arm ptrace: use unsigned types for kernel pt_regs
[ARM] pxa: fix strange characters in zaurus gpio .desc
ARM: add missing recvmmsg syscall number
[ARM] pxa: fix compiler warnings of unused variable 'id' in cpu_is_pxa9*()
[ARM] pxa: update pwm_backlight->notify() to include missed 'struct device *'
[ARM] pxa: enable L2 if present in XSC3
[ARM] pxa: do not enable L2 after MMU is enabled
Linus Torvalds [Wed, 13 Jan 2010 04:55:31 +0000 (20:55 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (22 commits)
MIPS: Ignore vmlinux.*
MIPS: Move vmlinux.ecoff to arch/mips/boot
MIPS: cpumask_of_node() should handle -1 as a node
MIPS: Octeon: Use non-overflowing arithmetic in sched_clock
MIPS: Malta, PowerTV: Remove unnecessary "Linux started"
MIPS: BCM63xx: Remove duplicate CONFIG_CMDLINE.
MIPS: AR7: Remove unused prom_getchar()
MIPS: PowerTV: Remove extra r4k_clockevent_init() call
MIPS: Cobalt use strlcat() for the command line arguments
MIPS: Octeon: Add sched_clock() to csrc-octeon.c
MIPS: TXx9: Cleanup builtin-cmdline processing
MIPS: PowerTV: simplify prom_init_cmdline() and merge into prom_init()
MIPS: PowerTV: Remove unused platform_die()
MIPS: PowerTV: Remove mips_machine_halt()
MIPS: PowerTV: Remove unused ptv_memsize
MIPS: PowerTV: Remove unused prom_getcmdline()
MIPS: AR7: Remove kgdb_enabled
MIPS: Alchemy: Correct code taking the size of a pointer
MIPS: BCM63xx: Fix whitespace damaged board_bcm963xx.c
MIPS: VR41xx: Use strlcat() for the command line arguments
...
Linus Torvalds [Wed, 13 Jan 2010 04:54:52 +0000 (20:54 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Fix ALC861-VD capture source mixer
ALSA: ac97: add AC97 STMicroelectronics' codecs
ALSA: ac97: Add Dell Dimension 2400 to Headphone/Line Jack Sense blacklist
ASoC: Fix WM8350 DSP mode B configuration
sbawe: fix memory detection part 2
sound: oss: off by one bug
ALSA: usb-audio - Avoid Oops after disconnect
ALSA: test off by one in setsamplerate()
ALSA: atiixp: Specify codec for Foxconn RC4107MA-RS2
Linus Torvalds [Wed, 13 Jan 2010 04:53:29 +0000 (20:53 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits)
sky2: Fix oops in sky2_xmit_frame() after TX timeout
Documentation/3c509: document ethtool support
af_packet: Don't use skb after dev_queue_xmit()
vxge: use pci_dma_mapping_error to test return value
netfilter: ebtables: enforce CAP_NET_ADMIN
e1000e: fix and commonize code for setting the receive address registers
e1000e: e1000e_enable_tx_pkt_filtering() returns wrong value
e1000e: perform 10/100 adaptive IFS only on parts that support it
e1000e: don't accumulate PHY statistics on PHY read failure
e1000e: call pci_save_state() after pci_restore_state()
netxen: update version to 4.0.72
netxen: fix set mac addr
netxen: fix smatch warning
netxen: fix tx ring memory leak
tcp: update the netstamp_needed counter when cloning sockets
TI DaVinci EMAC: Handle emac module clock correctly.
dmfe/tulip: Let dmfe handle DM910x except for SPARC on-board chips
ixgbe: Fix compiler warning about variable being used uninitialized
netfilter: nf_ct_ftp: fix out of bounds read in update_nl_seq()
mv643xx_eth: don't include cache padding in rx desc buffer size
...
Fix trivial conflict in drivers/scsi/cxgb3i/cxgb3i_offload.c
Greg Ungerer [Wed, 13 Jan 2010 00:42:05 +0000 (10:42 +1000)]
m68knommu: fix definitions of __pa() and __va()
Fix compilation breakage of all m68knommu targets:
CC arch/m68knommu/kernel/asm-offsets.s
In file included from include/linux/sched.h:77,
from arch/m68knommu/kernel/asm-offsets.c:12:
include/linux/percpu.h: In function 'per_cpu_ptr_to_phys':
include/linux/percpu.h:161: error: implicit declaration of function 'virt_to_phy
This is broken in linux-2.6.33-rc3.
Change the definitions of __pa() and __va() to not use virt_to_phys()
and phys_to_virt(). Trivial 1:1 conversion required for the non-MMU case.
A side effect if this is that the m68knommu can now use asm/virtconvert.h
for the definition of virt_to_phys() and phys_to_virt().
Also cleaned up the definition of page_to_phys() when moving into
virtconvert.h.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Airlie [Tue, 12 Jan 2010 23:21:49 +0000 (09:21 +1000)]
drm/radeon/kms: only evict to GTT if CP is ready
Testing GTT ready might be more correct but cp.ready
works fine and has been tested on irc by 2-3 ppl.
fixes bug k.org 15035 and fd.o 25733
Signed-off-by: Dave Airlie <airlied@redhat.com>
Michel Dänzer [Mon, 11 Jan 2010 07:58:38 +0000 (08:58 +0100)]
drm/radeon/kms: Fix crash getting TV info with no BIOS.
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Mon, 11 Jan 2010 20:02:31 +0000 (15:02 -0500)]
drm/radeon/kms/rv100: reject modes > 135 Mhz on DVI (v2)
Due to heat issues. Fixes fdo bug 25992
v2: fix typo noticed by Maarten Maathuis
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Tue, 12 Jan 2010 00:47:38 +0000 (19:47 -0500)]
drm/radeon/kms/r6xx+: make irq handler less verbose
Unhandled vectors can be safely ignored, no need
to spam the kernel log by default.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Tue, 12 Jan 2010 16:16:57 +0000 (11:16 -0500)]
drm/radeon/kms: fix up LVDS handling on macs (v2)
Based on radeonfb code and recent ddx fix.
v2: minor formatting fix from Michel Dänzer
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: Michel Dänzer <michel@daenzer.net>
Tested-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Tejun Heo [Mon, 11 Jan 2010 02:14:44 +0000 (11:14 +0900)]
libata: retry link resume if necessary
Interestingly, when SIDPR is used in ata_piix, writes to DET in
SControl sometimes get ignored leading to detection failure. Update
sata_link_resume() such that it reads back SControl after clearing DET
and retry if it's not clear.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: fengxiangjun <fengxiangjun@neusoft.com>
Reported-by: Jim Faulkner <jfaulkne@ccs.neu.edu>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>