linux-toradex.git/drivers/ata, branch tegra Linux kernel for Apalis and Colibri modules ahci-tegra: add avdd_plle regulator 2013-11-25T17:33:12+00:00 Stefan Agner stefan.agner@toradex.com 2013-11-25T17:33:12+00:00 c7c52865252fc2106134cc50ce4823ef78d7e10e When enabling SATA clocks, the PCIE clocks are enabled as well since those are the parent clocks. In order to enable this parent clocks, the PCIE regulator avdd_plle needs to be enabled. The resume path used to freeze because the PCIE PLL did not lock. 
When enabling SATA clocks, the PCIE clocks are enabled as well since
those are the parent clocks. In order to enable this parent clocks,
the PCIE regulator avdd_plle needs to be enabled. The resume path used
to freeze because the PCIE PLL did not lock.
arm: tegra: sata: Fix LP0 resume problem 2013-01-04T22:21:54+00:00 Yen Lin yelin@nvidia.com 2013-01-03T23:01:56+00:00 c319d0e904e6bff6e6c89d3c8cf651949c379925 - Fix a bug in ahci-tegra.c when checking if SATA is on when resuming - Add codes to support PM315 which uses LDO1 regulator for SATA rails bug 1206518 Change-Id: Iaa910b1948fbcf5e45491977fd8ed0b313d2e0ae Signed-off-by: Yen Lin <yelin@nvidia.com> Reviewed-on: http://git-master/r/188441 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Bibek Basu <bbasu@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Allen Martin <amartin@nvidia.com> Reviewed-by: Peng Wu <pengw@nvidia.com> Tested-by: Peng Wu <pengw@nvidia.com> Reviewed-by: Eric Brower <ebrower@nvidia.com> 
- Fix a bug in ahci-tegra.c when checking if SATA is on when resuming
- Add codes to support PM315 which uses LDO1 regulator for SATA rails

bug 1206518

Change-Id: Iaa910b1948fbcf5e45491977fd8ed0b313d2e0ae
Signed-off-by: Yen Lin <yelin@nvidia.com>
Reviewed-on: http://git-master/r/188441
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Allen Martin <amartin@nvidia.com>
Reviewed-by: Peng Wu <pengw@nvidia.com>
Tested-by: Peng Wu <pengw@nvidia.com>
Reviewed-by: Eric Brower <ebrower@nvidia.com>
arm: tegra: ahci/sata: check sata against board id 2012-11-29T03:45:39+00:00 Bibek Basu bbasu@nvidia.com 2012-10-11T10:04:04+00:00 272fb5df134a30f72a1acf6d5d2b06e290865af7 If the board has sata support, then only add platform device Also move slumber code to Idle powergate section to avoid build failure. Bug 1171138 Change-Id: I6128f451f348a7fad41fc52579b18939c8a2efcd Original-author: Mike Thompson <mikthompson@nvidia.com> Signed-off-by: Mike Thompson <mikthompson@nvidia.com> Signed-off-by: Bibek Basu <bbasu@nvidia.com> Signed-off-by: Syed Rafiuddin <srafiuddin@nvidia.com> Reviewed-on: http://git-master/r/143984 Tested-by: Simone Willett <swillett@nvidia.com> (cherry picked from commit 6e6a0ec500a3113272a593e4466f04d940bc637f) Signed-off-by: Bibek Basu <bbasu@nvidia.com> Reviewed-on: http://git-master/r/166837 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Matthew Pedro <mapedro@nvidia.com> 
If the board has sata support, then only add platform device
Also move slumber code to Idle powergate section to
avoid build failure.

Bug 1171138

Change-Id: I6128f451f348a7fad41fc52579b18939c8a2efcd
Original-author: Mike Thompson <mikthompson@nvidia.com>
Signed-off-by: Mike Thompson <mikthompson@nvidia.com>
Signed-off-by: Bibek Basu <bbasu@nvidia.com>
Signed-off-by: Syed Rafiuddin <srafiuddin@nvidia.com>
Reviewed-on: http://git-master/r/143984
Tested-by: Simone Willett <swillett@nvidia.com>
(cherry picked from commit 6e6a0ec500a3113272a593e4466f04d940bc637f)
Signed-off-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-on: http://git-master/r/166837
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
tegra: sata: treat warnings as errors 2012-08-02T16:25:10+00:00 Deepak Nibade dnibade@nvidia.com 2012-07-24T12:05:14+00:00 c20089a11638bc2548a496bee3971bca88db2666 -add compilation flag to treat warning as error bug 949219 Change-Id: I23c961756ebe7b84ff019995e5c0704693fdf13f Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/118016 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Sanjay Singh Rawat <srawat@nvidia.com> Reviewed-by: Yen Lin <yelin@nvidia.com> Reviewed-by: Sachin Nikam <snikam@nvidia.com> 
-add compilation flag to treat warning as error

bug 949219

Change-Id: I23c961756ebe7b84ff019995e5c0704693fdf13f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/118016
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sanjay Singh Rawat <srawat@nvidia.com>
Reviewed-by: Yen Lin <yelin@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
arm: tegra: ahci/sata: Add SATA driver 2012-05-25T16:56:20+00:00 Yen Lin yelin@nvidia.com 2012-03-13T00:07:58+00:00 eff5dd61e05e1b01c396609e2129a8ab433d2666 Upgrade the Tegra 3 SATA driver to support kernel 3.1. The driver supports runtime_pm when doing power-gating during idle. A new CONFIG_TEGRA_SATA_IDLE_POWERGATE is provided to enable/disable power-gating during idle. When sata clocks (sata, sata-oob and pll_e clocks) are in the core_dvfs_table[] table, CONFIG_TEGRA_SATA_IDLE_POWERGATE must not be enabled. Currently, sata clocks are in the core_dvfs_table[]. Those clocks will not be in that table in the future. By then, CONFIG_TEGRA_SATA_IDLE_POWERGATE can then be enabled. Change-Id: I15b585713bfd891f8827fd028b21bf3e5c2b80d9 Signed-off-by: Yen Lin <yelin@nvidia.com> Reviewed-on: http://git-master/r/89614 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Jon Mayo <jmayo@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com> 
Upgrade the Tegra 3 SATA driver to support kernel 3.1.

The driver supports runtime_pm when doing power-gating during idle.

A new CONFIG_TEGRA_SATA_IDLE_POWERGATE is provided to enable/disable
power-gating during idle.

When sata clocks (sata, sata-oob and pll_e clocks) are in the
core_dvfs_table[] table, CONFIG_TEGRA_SATA_IDLE_POWERGATE must not
be enabled.

Currently, sata clocks are in the core_dvfs_table[]. Those clocks
will not be in that table in the future. By then,
CONFIG_TEGRA_SATA_IDLE_POWERGATE can then be enabled.

Change-Id: I15b585713bfd891f8827fd028b21bf3e5c2b80d9
Signed-off-by: Yen Lin <yelin@nvidia.com>
Reviewed-on: http://git-master/r/89614
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge chipsets(v2) 2011-11-11T17:43:05+00:00 Ming Lei ming.lei@canonical.com 2011-10-07T03:50:22+00:00 94ab1982e35ba7f316df7a3c53f155ddc8e7ceee commit 5e5a4f5d5a08c9c504fe956391ac3dae2c66556d upstream. This quirk patch fixes one kind of bug inside some Intel Sandybridge chipsets, see reports from https://bugzilla.kernel.org/show_bug.cgi?id=40592. Many guys also have reported the problem before: https://bugs.launchpad.net/bugs/737388 https://bugs.launchpad.net/bugs/794642 https://bugs.launchpad.net/bugs/782389 ...... With help from Tejun, the problem is found to be caused by 32bit PIO mode, so introduce the quirk patch to disable 32bit PIO on SATA piix for some Sandybridge CPT chipsets. Seth also tested the patch on all five affected chipsets (pci device ID: 0x1c00, 0x1c01, 0x1d00, 0x1e00, 0x1e01), and found the patch does fix the problem. Tested-by: Heasley, Seth <seth.heasley@intel.com> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Ming Lei <ming.lei@canonical.com> Acked-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit 5e5a4f5d5a08c9c504fe956391ac3dae2c66556d upstream.

This quirk patch fixes one kind of bug inside some Intel Sandybridge
chipsets, see reports from

       https://bugzilla.kernel.org/show_bug.cgi?id=40592.

Many guys also have reported the problem before:

	https://bugs.launchpad.net/bugs/737388
	https://bugs.launchpad.net/bugs/794642
	https://bugs.launchpad.net/bugs/782389
	......

With help from Tejun, the problem is found to be caused by 32bit PIO
mode, so introduce the quirk patch to disable 32bit PIO on SATA piix
for some Sandybridge CPT chipsets.

Seth also tested the patch on all five affected chipsets
(pci device ID: 0x1c00, 0x1c01, 0x1d00, 0x1e00, 0x1e01), and found
the patch does fix the problem.

Tested-by: Heasley, Seth <seth.heasley@intel.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/ata/sata_dwc_460ex.c: add missing kfree 2011-08-19T03:58:11+00:00 Julia Lawall julia@diku.dk 2011-08-08T11:17:57+00:00 a081da630d64acf132b2db1043c586b993d49da7 Currently, error handling code in this function calls the function sata_dwc_port_stop, but this function has essentially no effect if hsdevp has not been stored in ap, which is the case throughout this function. The only effect is to print a debugging message including ap->print_id. The code is rewritten to not call sata_dwc_port_stop, but instead to jump to a local label that prints the original error message and the print_id information. In the case where hsdevp has been already allocated (but not yet stored in ap), this value is freed as well. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @exists@ local idexpression x; statement S,S1; expression E; identifier fl; expression *ptr != NULL; @@ x = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...kfree(x)...+> } when any when != true x == NULL x->fl ...> ( if (x == NULL) S1 | if (...) { ... when != x when forall ( return \(0\|<+...x...+>\|ptr\); | * return ...; ) } ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Jeff Garzik <jgarzik@pobox.com> 
Currently, error handling code in this function calls the function
sata_dwc_port_stop, but this function has essentially no effect if hsdevp
has not been stored in ap, which is the case throughout this function.  The
only effect is to print a debugging message including ap->print_id.

The code is rewritten to not call sata_dwc_port_stop, but instead to jump
to a local label that prints the original error message and the print_id
information.  In the case where hsdevp has been already allocated (but not
yet stored in ap), this value is freed as well.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@exists@
local idexpression x;
statement S,S1;
expression E;
identifier fl;
expression *ptr != NULL;
@@

x = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...kfree(x)...+> }
     when any
     when != true x == NULL
x->fl
...>
(
if (x == NULL) S1
|
if (...) { ... when != x
               when forall
(
 return \(0\|<+...x...+>\|ptr\);
|
* return ...;
)
}
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
ata: Add iMX pata support 2011-08-19T03:57:58+00:00 Arnaud Patard (Rtp) arnaud.patard@rtp-net.org 2011-07-26T14:58:19+00:00 e39c75cf3e045c2fb3988770b207dfd09c30d4ac Add basic support for pata on iMX. It has been tested only on imx51. SDMA support will probably be added later so this version supports only PIO. v2: - enable only when needed IORDY - use dev_get_drvdata v3: - add missing clk_put() calls - use platform_get_irq() - fix resume code to avoid disabling IORDY on resume v4: - Remove EXPERIMENTAL and switch to depends on ARCH_MXC - Use devm_kzalloc() - make clock a must-have - Use only 1 ioremap Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> 
Add basic support for pata on iMX. It has been tested only on imx51.
SDMA support will probably be added later so this version supports only
PIO.

v2:
  - enable only when needed IORDY
  - use dev_get_drvdata
v3:
  - add missing clk_put() calls
  - use platform_get_irq()
  - fix resume code to avoid disabling IORDY on resume
v4:
  - Remove EXPERIMENTAL and switch to depends on ARCH_MXC
  - Use devm_kzalloc()
  - make clock a must-have
  - Use only 1 ioremap

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
pata_via: disable ATAPI DMA on AVERATEC 3200 2011-08-19T03:56:39+00:00 Tejun Heo tj@kernel.org 2011-08-04T09:15:07+00:00 6d0e194d2eefcaab6dbdca1f639748660144acb5 On AVERATEC 3200, pata_via causes memory corruption with ATAPI DMA, which often leads to random kernel oops. The cause of the problem is not well understood yet and only small subset of machines using the controller seem affected. Blacklist ATAPI DMA on the machine. Signed-off-by: Tejun Heo <tj@kernel.org> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=11426 Reported-and-tested-by: Jim Bray <jimsantelmo@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Jeff Garzik <jgarzik@pobox.com> 
On AVERATEC 3200, pata_via causes memory corruption with ATAPI DMA,
which often leads to random kernel oops.  The cause of the problem is
not well understood yet and only small subset of machines using the
controller seem affected.  Blacklist ATAPI DMA on the machine.

Signed-off-by: Tejun Heo <tj@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=11426
Reported-and-tested-by: Jim Bray <jimsantelmo@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
[libata] sata_sil: fix used-uninit warning 2011-08-19T03:52:36+00:00 Jeff Garzik jeff@garzik.org 2011-08-19T03:52:36+00:00 ebd1699ec5f1a6f1f2df6b48fa54bc6ff790143c Init 'serror' to silence the following warning: drivers/ata/sata_sil.c: In function ‘sil_interrupt’: drivers/ata/sata_sil.c:453:14: warning: ‘serror’ may be used uninitialized in this function [-Wuninitialized] This is not a 'can never happen' but is nonetheless extremely unlikely. The easiest and cleanest warning fix is simply to init the var, rather than worry about marking the var uninit-ok. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> 
Init 'serror' to silence the following warning:

drivers/ata/sata_sil.c: In function ‘sil_interrupt’:
drivers/ata/sata_sil.c:453:14: warning: ‘serror’ may be used uninitialized in
this function [-Wuninitialized]

This is not a 'can never happen' but is nonetheless extremely unlikely.
The easiest and cleanest warning fix is simply to init the var,
rather than worry about marking the var uninit-ok.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>