Commit Graph

27 Commits

Author SHA1 Message Date
Sergey Shtylyov 2d3a62fbae pata_rb532_cf: fix deferred probing
The driver overrides the error codes returned by platform_get_irq() to
-ENOENT, so if it returns -EPROBE_DEFER, the driver would fail the probe
permanently instead of the deferred probing. Switch to propagating the
error code upstream, still checking/overriding IRQ0 as libata regards it
as "no IRQ" (thus polling) anyway...

Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Link: https://lore.kernel.org/r/771ced55-3efb-21f5-f21c-b99920aae611@omprussia.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-05-18 15:17:56 -06:00
Christoph Hellwig 4bdc0d676a remove ioremap_nocache and devm_ioremap_nocache
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-06 09:45:59 +01:00
Gustavo A. R. Silva db341a049e ata: rb532_cf: Fix unused variable warning in rb532_pata_driver_probe
Fix the following warning (Building: rb532_defconfig mips):

drivers/ata/pata_rb532_cf.c: In function ‘rb532_pata_driver_remove’:
drivers/ata/pata_rb532_cf.c:161:24: warning: unused variable ‘info’ [-Wunused-variable]
  struct rb532_cf_info *info = ah->private_data;
                        ^~~~

Fixes: cd56f35e52 ("ata: rb532_cf: Convert to use GPIO descriptors")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-08-06 07:44:59 -06:00
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Linus Walleij cd56f35e52 ata: rb532_cf: Convert to use GPIO descriptors
Pass a GPIO descriptor for the device instead of a hardcoded
GPIO number from the global GPIO numberspace. Use gpio
descriptors throughout.

Cut the now completely unused platform data for the CF slot.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Waldemar Brodkorb <wbx@openadk.org>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-12-04 17:15:25 -07:00
Linus Walleij 0fe98fa056 ata: rb532_cf: cut drvdata assignment
ata_host_alloc_pinfo() assigns the host pointer to the
struct device * drvdata, do not assign it a second time.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
2017-05-30 11:54:37 -04:00
Gabor Juhos 018361767a pata-rb532-cf: get rid of the irq_to_gpio() call
The RB532 platform specific irq_to_gpio() implementation has been
removed with commit 832f5dacfa ("MIPS: Remove all the uses of
custom gpio.h"). Now the platform uses the generic stub which causes
the following error:

  pata-rb532-cf pata-rb532-cf: no GPIO found for irq149
  pata-rb532-cf: probe of pata-rb532-cf failed with error -2

Drop the irq_to_gpio() call and get the GPIO number from platform
data instead. After this change, the driver works again:

  scsi host0: pata-rb532-cf
  ata1: PATA max PIO4 irq 149
  ata1.00: CFA: CF 1GB, 20080820, max MWDMA4
  ata1.00: 1989792 sectors, multi 0: LBA
  ata1.00: configured for PIO4
  scsi 0:0:0:0: Direct-Access     ATA      CF 1GB           0820 PQ: 0\
  ANSI: 5
  sd 0:0:0:0: [sda] 1989792 512-byte logical blocks: (1.01 GB/971 MiB)
  sd 0:0:0:0: [sda] Write Protect is off
  sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't\
  support DPO or FUA
   sda: sda1 sda2
  sd 0:0:0:0: [sda] Attached SCSI disk

Fixes: 832f5dacfa ("MIPS: Remove all the uses of custom gpio.h")
Cc: Alban Bedel <albeu@free.fr>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <stable@vger.kernel.org> #v4.3+
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
2016-02-18 11:26:27 -05:00
Alban Bedel 832f5dacfa MIPS: Remove all the uses of custom gpio.h
Currently CONFIG_ARCH_HAVE_CUSTOM_GPIO_H is defined for all MIPS
machines, and each machine type provides its own gpio.h. However
only a handful really implement the GPIO API, most just forward
everythings to gpiolib.

The Alchemy machine is notable as it provides a system to allow
implementing the GPIO API at the board level. But it is not used by
any board currently supported, so it can also be removed.

For most machine types we can just remove the custom gpio.h, as well
as the custom wrappers if some exists. Some of the code found in
the wrappers must be moved to the respective GPIO driver.

A few more fixes are need in some drivers as they rely on linux/gpio.h
to provides some machine specific definitions, or used asm/gpio.h
instead of linux/gpio.h for the gpio API.

Signed-off-by: Alban Bedel <albeu@free.fr>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Daniel Walter <dwalter@google.com>
Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: James Hartley <james.hartley@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Varka Bhadram <varkabhadram@gmail.com>
Cc: Masanari Iida <standby24x7@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Michael Buesch <m@bues.ch>
Cc: abdoulaye berthe <berthe.ab@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: netdev@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10828/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:02 +02:00
Wolfram Sang 65c662ab63 ata: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:20:17 +02:00
Greg Kroah-Hartman 0ec2491467 Drivers: ata: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:03 -08:00
Axel Lin 99c8ea3e57 SATA/PATA: convert drivers/ata/* to use module_platform_driver()
This patch converts the drivers in drivers/ata/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: Viresh Kumar <viresh.kumar@st.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sylvain Munaut <tnt@246tNt.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Mark Miesfeld <mmiesfeld@amcc.com>
Cc: Ashish Kalra <ashish.kalra@freescale.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-01-08 19:14:58 -05:00
Thomas Gleixner dced35aeb0 drivers: Final irq namespace conversion
Scripted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:48:19 +02:00
Sergei Shtylyov 9cbe056f6c libata: remove ATA_FLAG_NO_LEGACY
All checks of ATA_FLAG_NO_LEGACY have been removed by the commits
c791c30670 ([libata] minor PCI IDE probe
fixes and cleanups) and f0d36efdc6 (libata:
update libata core layer to use devres), so I think it's time to finally
get rid of this flag...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-03-02 02:36:46 -05:00
Sergei Shtylyov 3696df3099 libata: remove ATA_FLAG_MMIO
Commit 0d5ff56677 (libata: convert to iomap)
removed all checks of ATA_FLAG_MMIO but neglected to remove the flag itself.
Do it now, at last...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2011-03-02 02:36:46 -05:00
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Julia Lawall 041b5eac25 drivers/ata: use resource_size
Use the function resource_size, which reduces the chance of introducing
off-by-one errors in calculating the resource size.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
struct resource *res;
@@

- (res->end - res->start) + 1
+ resource_size(res)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-09-11 02:25:58 -04:00
Florian Fainelli 9223d01b2f pata-rb532-cf: platform_get_irq() fix ignored failure
platform_get_irq() can return -ENXIO, but since 'irq' is an
unsigned int, it does not show when the IRQ resource wasn't found.
Make irq an int so that we can use a single variable to test the
platform_get_irq() return value.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24 22:16:34 -04:00
Erik Inge Bolsø 14bdef982c [libata] convert drivers to use ata.h mode mask defines
No functional changes in this patch.

Signed-off-by: Erik Inge Bolsø <knan-lkml@anduin.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24 22:13:27 -04:00
Phil Sutter 6be976e79d pata-rb532-cf: drop custom freeze and thaw
I'm not quite sure what freezing and thawing is used for. Tests showed
that the port is being frozen at initialisation state and thawed right
afterwards, then the functions were not called anymore. Dropping the
complete custom code for handling the frozen state seems to work at
least for a standard use case including mounting a partition, copying
some files in it (in parallel) and finally removing them and unmounting
the partition.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24 22:02:40 -04:00
Phil Sutter 180bd147f1 pata-rb532-cf: use ata_sff_data_xfer32()
The biggest difference between rb532_pata_data_xfer() and
ata_sff_data_xfer32() is the call to ata_sff_pause() at the end of
rb532_pata_data_xfer() which I suppose to be unnecessary since it works
without. I've also tested using ata_sff_data_xfer() as replacement, but
since we know that the driver supports 32bit IO, using the optimised
version should be safe.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24 22:02:39 -04:00
Phil Sutter bff9ad3c4c pata-rb532-cf: use ata_sff_exec_command()
The only difference between rb532_pata_exec_command() and
ata_sff_exec_command() is added debugging output, so it can be dropped
and the standard op used instead.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24 22:02:39 -04:00
Phil Sutter 96b34ce7ca pata-rb532-cf: replace rb532_pata_finish_io()
Since the delay used internally is just the same as ata_sff_pause()
uses, rb532_pata_finish_io() does exactly the same as ata_sff_pause()
and thus can be replaced by the later one.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24 22:02:39 -04:00
Phil Sutter b98f504639 pata-rb532-cf: remove set_irq_type from finish_io
The driver has been tested without the call to set_irq_type at this
point and occurs to work fine, so it should be safe to remove it.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-01-27 02:13:03 -05:00
Phil Sutter 03f60840fa [libata] pata_rb532_cf: fix signature of the xfer function
Per definition, this function should return the number of bytes
consumed. As the original parameter "buflen" is being decremented inside
the read/write loop, save it in "retlen" at the beginning.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Acked-by: Sergei Shtyltov <sshtylyov@ru.mvista.com>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-12-01 13:49:17 -05:00
Phil Sutter 9f14786e27 [libata] pata_rb532_cf: fix and rename register definitions
The original standalone driver uses a custom address for the error
register. Use it in pata_rb532_cf, too.

Rename two register definitions:
- The address offset 0x0800 in fact is the ATA base, not ATA command
  address.
- The offset 0x0C00 is not a regular ATA data address, but a buffered one
  allowing 4-byte IO.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-12-01 13:49:08 -05:00
Alan Cox a57c1bade5 libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl
- Make ata_sff_altstatus private so nobody uses it by mistake
- Drop the 400nS delay from it

Add

ata_sff_irq_status	-	encapsulates the IRQ check logic

This function keeps the existing behaviour for altstatus using devices. I
actually suspect the logic was wrong before the changes but -rc isn't the
time to play with that

ata_sff_sync		-	ensure writes hit the device

Really we want an io* operation for 'is posted' eg ioisposted(ioaddr) so
that we can fix the nasty delay this causes on most systems.

- ata_sff_pause		-	400nS delay

Ensure the command hit the device and delay 400nS

- ata_sff_dma_pause

Ensure the I/O hit the device and enforce an HDMA1:0 transition delay.
Requires altstatus register exists, BUG if not so we don't risk
corruption in MWDMA modes. (UDMA the checksum will save your backside in
theory)

The only other complication then is devices with their own handlers.
rb532 can use dma_pause but scc needs to access its own altstatus
register for internal errata workarounds so directly call the drivers own
altstatus function.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-04 06:40:41 -04:00
Ralf Baechle 3dd654bfdf [MIPS] ATA: Rename routerboard 500 to 532
The platform is actually named routerboard 532 so let's call it this.  This
patch only rename files, Kconfig and C symbols; no functional changes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-29 02:16:25 -04:00