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  1. 31 10月, 2015 1 次提交
  3. 29 10月, 2015 2 次提交
    • T
      usb: musb: omap2430: Fix regression caused by driver core change · 8f2279d5
      由 Tony Lindgren 提交于 
      Commit ddef08dd ("Driver core: wakeup the parent device before trying
probe") started automatically ensuring the parent device is enabled when
the child gets probed.

This however caused a regression for MUSB omap2430 interface as the
runtime PM for the parent device needs the child initialized to access
the MUSB hardware registers.

Let's delay the enabling of PM runtime for the parent until the child
has been properly initialized as suggested in an earlier patch by
Grygorii Strashko <grygorii.strashko@ti.com>.

In addition to delaying pm_runtime_enable, we now also need to make sure
the parent is enabled during omap2430_musb_init. We also want to propagate
an error from omap2430_runtime_resume if struct musb is not initialized.

Note that we use pm_runtime_put_noidle here for both the child and parent
to prevent an extra runtime_suspend/resume cycle.

Let's also add some comments to avoid confusion between the
two different devices.

Fixes: ddef08dd ("Driver core: wakeup the parent device before
trying probe")
Suggested-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>
      8f2279d5
    • A
      ARM: OMAP1: fix incorrect INT_DMA_LCD · 1bd5dfe4
      由 Aaro Koskinen 提交于 
      Commit 685e2d08 ("ARM: OMAP1: Change interrupt numbering for
sparse IRQ") turned on SPARSE_IRQ on OMAP1, but forgot to change
the number of INT_DMA_LCD. This broke the boot at least on Nokia 770,
where the device hangs during framebuffer initialization.

Fix by defining INT_DMA_LCD like the other interrupts.

Cc: stable@vger.kernel.org # v4.2+
Fixes: 685e2d08 ("ARM: OMAP1: Change interrupt numbering for sparse IRQ")
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NTony Lindgren <tony@atomide.com>
      1bd5dfe4
  5. 23 10月, 2015 1 次提交
  7. 21 10月, 2015 3 次提交
  9. 19 10月, 2015 1 次提交
    • T
      ARM: OMAP2+: Fix imprecise external abort caused by bogus SRAM init · 57df5380
      由 Tony Lindgren 提交于 
      Some omaps are producing imprecise external aborts because we are
wrongly trying to init SRAM for device tree based booting. Only
omap3 is still using the legacy SRAM code, so we need to make it
omap3 specific. Otherwise we can get errors like this on at least
dm814x:

Unhandled fault: imprecise external abort (0xc06) at 0xc08b156c
...
(omap_rev) from [<c08b12e0>] (omap_sram_init+0xf8/0x3e0)
(omap_sram_init) from [<c08aca0c>] (omap_sdrc_init+0x10/0xb0)
(omap_sdrc_init) from [<c08b581c>] (pdata_quirks_init+0x18/0x44)
(pdata_quirks_init) from [<c08b5478>] (omap_generic_init+0x10/0x1c)
(omap_generic_init) from [<c08a57e0>] (customize_machine+0x1c/0x40)
(customize_machine) from [<c00098a4>] (do_one_initcall+0x80/0x1dc)
(do_one_initcall) from [<c08a2ec4>] (kernel_init_freeable+0x218/0x2e8)
(kernel_init_freeable) from [<c063a554>] (kernel_init+0x8/0xec)
(kernel_init) from [<c000f890>] (ret_from_fork+0x14/0x24)

Let's fix the issue by making sure omap_sdrc_init only gets called for
omap3. To do that, we need to have compatible "ti,omap3" in the dts
files. And let's also use "ti,omap3630" instead of "ti,omap36xx" like
we're supposed to.
Signed-off-by: NTony Lindgren <tony@atomide.com>
      57df5380
  11. 17 10月, 2015 2 次提交
  13. 15 10月, 2015 8 次提交
    • T
      ARM: tegra: Comment out gpio-ranges properties · 4f1d8414
      由 Thierry Reding 提交于 
      While the addition of these properties is technically correct it unveils
a bug with deferred probe. The problem is that the presence of the gpio-
range property causes the gpio-tegra driver to defer probe (it needs the
pinctrl driver to be ready). That's technically correct, but it causes a
couple of issues:

  - The keyboard on Chromebooks stops working. The reason for that is
    that the gpio-tegra device has not registered an IRQ domain by the
    time the EC SPI device is registered, hence the interrupt number
    resolves to 0. This is technically a bug in the SPI core, since it
    should really resolve the interrupt at probe time and defer if the
    IRQ domain isn't available yet. This is similar to what's done for
    I2C and platform device already.

  - The gpio-tegra device deferring probe means that it is moved to the
    end of the dpm_list. This list defines the suspend/resume order for
    devices. However the core lacks a way to move all users of the
    gpio-tegra device to the end of the dpm_list at the same time. This
    in turn results in a subtle bug on Jetson TK1, where the gpio-keys
    device is used to expose the power key as input. The power key is a
    convenient way to wake the system from suspend. Interestingly, the
    gpio-keys device ends up getting probed at a point after gpio-tegra
    has been probed successfully from having been deferred earlier. As
    such the driver doesn't need to defer the probe itself, and hence
    the device isn't moved to the end of the dpm_list. This causes the
    gpio-tegra device to be suspended before gpio-keys, which in turn
    leaves gpio-keys unable to wake the system from suspend.

There are patches in the works to fix both of the above issues, but they
are too involved to make it into v4.3, so in the meantime let's fix the
regressions by commenting out the gpio-ranges properties until the fixes
have landed.
Signed-off-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      4f1d8414
    • A
      Merge tag 'omap-for-v4.3/fixes-rc5' of... · a787f40a
      由 Arnd Bergmann 提交于 
      Merge tag 'omap-for-v4.3/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "Fixes for omap against v4.3-rc5" from Tony Lindgren:

- Regulator fix for beagle-x15 to fix HDMI without a SD card being
  inserted

- GPMC fix for showing proper timings and to allow enabling debug
  options that somehow was unselectable earlier

- Add minimal documentation for new MMC1 dependency on
  REGULATOR_PBIAS as it may not be obvious for people with
  targeted .config files

* tag 'omap-for-v4.3/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  Documentation: ARM: List new omap MMC requirements
  memory: omap-gpmc: dump "before" state before first modification
  memory: omap-gpmc: Fix unselectable debug option for GPMC
  ARM: dts: am57xx-beagle-x15: set VDD_SD to always-on
      a787f40a
    • M
      ARM: dts: uniphier: fix IRQ number for devices on PH1-LD6b ref board · 2e4e5da5
      由 Masahiro Yamada 提交于 
      The IRQ signal from external devices on this board is connected to
the XIRQ4 pin of the SoC.  The IRQ number should be 52, not 50.

Fixes: a5e921b4 ("ARM: dts: uniphier: add ProXstream2 and PH1-LD6b SoC/board support")
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      2e4e5da5
    • W
      drivers/perf: arm_pmu: avoid CPU device_node reference leak · fb659882
      由 Will Deacon 提交于 
      of_cpu_device_node_get increments the reference count on the CPU
device_node, so we must take care to of_node_put once we've finished
with it.

This patch fixes the perf IRQ probing code to avoid the leak.

Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      fb659882
    • P
      bus: arm-ccn: Fix irq affinity setting on CPU migration · a0bcbe96
      由 Pawel Moll 提交于 
      When PMU context is migrating between CPUs, interrupt affinity is set as
well. Only this should not happen when the CCN interrupt is not being
used at all (the driver is using a hrtimer tick instead).

Fixed now.

Cc: <stable@vger.kernel.org> # 4.2+
Signed-off-by: NPawel Moll <pawel.moll@arm.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      a0bcbe96
    • P
      bus: arm-ccn: Handle correctly no-more-cpus case · b20519fd
      由 Pawel Moll 提交于 
      When migrating events the driver picks another cpu using
cpumask_any_but() function, which returns value >= nr_cpu_ids
when there is none available, not a negative value as the code
assumed. Fixed now.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NPawel Moll <pawel.moll@arm.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      b20519fd
    • M
      ARM: mvebu: correct a385-db-ap compatible string · db347f1a
      由 Marcin Wojtas 提交于 
      This commit enables standby support on Armada 385 DB-AP board, because
the PM initalization routine requires "marvell,armada380" compatible
string for all Armada 38x-based platforms.

Beside the compatible "marvell,armada38x" was wrong and should be fixed
in the stable kernels too.

[gregory.clement@free-electrons.com: add information, about the fixes]
Fixes: e5ee1281 ("ARM: mvebu: Add Armada 385 Access Point
Development Board support")
Signed-off-by: NMarcin Wojtas <mw@semihalf.com>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>
Cc: <stable@vger.kernel.org>
      db347f1a
    • C
      ARM: meson6: DTS: Fix wrong reg mapping and IRQ numbers · f9e5ca86
      由 Carlo Caione 提交于 
      The DTS erronously uses the wrong reg mapping and IRQ numbers for some
UART, WDT and timer nodes. Fix this.
Reported-by: NJohn Wehle <john@feith.com>
Signed-off-by: NCarlo Caione <carlo@endlessm.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      f9e5ca86
  15. 14 10月, 2015 6 次提交
  17. 13 10月, 2015 6 次提交
    • T
      Documentation: ARM: List new omap MMC requirements · d8e1f5ed
      由 Tony Lindgren 提交于 
      Earlier the PBIAS regulator was optional, not so with recent
omap_hsmmc changes. To make things easier for people with
custom .config files, let's add minimal documentation for it
as suggested by Russell King <rmk+kernel@arm.linux.org.uk>.
Signed-off-by: NTony Lindgren <tony@atomide.com>
      d8e1f5ed
    • U
      memory: omap-gpmc: dump "before" state before first modification · fd820a1e
      由 Uwe Kleine-König 提交于 
      When gpmc_cs_show_timings is called in gpmc_cs_set_timings()
gpmc_cs_program_settings() was already run which modifies the CONFIG1
register. So to be more useful do the "before" dump earlier.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NRoger Quadros <rogerq@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>
      fd820a1e
    • T
      memory: omap-gpmc: Fix unselectable debug option for GPMC · be59b619
      由 Tony Lindgren 提交于 
      Commit 63aa945b ("memory: omap-gpmc: Add Kconfig option for debug")
added a debug option for GPMC, but somehow managed to keep it unselectable.

This probably happened because I had some uncommitted changes and the
GPMC option is selected in the platform specific Kconfig.

Let's also update the description a bit, it does not mention that
enabling the debug option also disables the reset of GPMC controller
during the init as pointed out by Uwe Kleine-König
<u.kleine-koenig@pengutronix.de> and Roger Quadros <rogerq@ti.com>.

Fixes: 63aa945b ("memory: omap-gpmc: Add Kconfig option for debug")
Reported-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NRoger Quadros <rogerq@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>
      be59b619
    • T
      ARM: dts: am57xx-beagle-x15: set VDD_SD to always-on · 7e381ec6
      由 Tomi Valkeinen 提交于 
      LDO1 regulator (VDD_SD) is connected to SoC's vddshv8. vddshv8 needs to
be kept always powered (see commit 5a0f93c6 ("ARM: dts: Add
am57xx-beagle-x15"), but at the moment VDD_SD is enabled/disabled
depending on whether an SD card is inserted or not.

This patch sets LDO1 regulator to always-on.

This patch has a side effect of fixing another issue, HDMI DDC not
working when SD card is not inserted:

Why this happens is that the tpd12s015 (HDMI level shifter/ESD
protection chip) has LS_OE GPIO input, which needs to be enabled for the
HDMI DDC to work. LS_OE comes from gpio6_28. The pin that provides
gpio6_28 is powered by vddshv8, and vddshv8 comes from VDD_SD.

So when SD card is not inserted, VDD_SD is disabled, and LS_OE stays
off.

The proper fix for the HDMI DDC issue would be to maybe have the pinctrl
framework manage the pin specific power.

Apparently this fixes also a third issue (copy paste from Kishon's
patch):

ldo1_reg in addition to being connected to the io lines is also
connected to the card detect line. On card removal, omap_hsmmc
driver does a regulator_disable causing card detect line to be
pulled down. This raises a card insertion interrupt and once the
MMC core detects there is no card inserted, it does a
regulator disable which again raises a card insertion interrupt.
This happens in a loop causing infinite MMC interrupts.

Fixes: 5a0f93c6 ("ARM: dts: Add am57xx-beagle-x15")
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: NLouis McCarthy <compeoree@gmail.com>
Acked-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>
      7e381ec6
    • A
      ARM: dts: Fix audio card detection on Peach boards · b8bb9baa
      由 Alim Akhtar 提交于 
      Since commit 2fad972d ("ARM: dts: Add mclk entry for Peach boards"),
sound card detection is broken on peach boards and gives below errors:

[    3.630457] max98090 7-0010: MAX98091 REVID=0x51
[    3.634233] max98090 7-0010: use default 2.8v micbias
[    3.640985] snow-audio sound: HiFi <-> 3830000.i2s mapping ok
[    3.645307] max98090 7-0010: Invalid master clock frequency
[    3.650824] snow-audio sound: ASoC: Peach-Pi-I2S-MAX98091 late_probe() failed: -22
[    3.658914] snow-audio sound: snd_soc_register_card failed (-22)
[    3.664366] snow-audio: probe of sound failed with error -22

This patch adds missing assigned-clocks and assigned-clock-parents for
pmu_system_controller node which is used as "mclk" for audio codec.

Fixes: 2fad972d ("ARM: dts: Add mclk entry for Peach boards")
Signed-off-by: NAlim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NKukjin Kim <kgene@kernel.org>
      b8bb9baa
    • K
      ARM: EXYNOS: Fix double of_node_put() when parsing child power domains · 51a6256b
      由 Krzysztof Kozlowski 提交于 
      On each next iteration of for_each_compatible_node() the reference
counter for current device node is already decreased by the loop
iterator. The manual call to of_node_get() is required only on loop
break which is not happening here.

The double of_node_get() (with enabled CONFIG_OF_DYNAMIC) lead to
decreasing the counter below expected, initial value.

Fixes: fe4034a3 ("ARM: EXYNOS: Add missing of_node_put() when parsing power domains")
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NKukjin Kim <kgene@kernel.org>
      51a6256b
  19. 12 10月, 2015 7 次提交
  21. 11 10月, 2015 3 次提交