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  1. 07 Jan, 2016 3 commits
    • Timo Sigurdsson's avatar
      ARM: Fix broken USB support in multi_v7_defconfig for sunxi devices · 5b1a6181
      Timo Sigurdsson authored 
      Commit 69fb4dca ("power: Add an axp20x-usb-power driver") introduced a
new driver for the USB power supply used on various Allwinner based SBCs.
However, the driver was not added to multi_v7_defconfig which breaks USB
support for some boards (e.g. LeMaker BananaPi) as the kernel will now
turn off the USB power supply during boot by default if the driver isn't
present. (This was not the case in linux 4.3 or lower where the USB power
was always left on.)

Hence, add the driver to multi_v7_defconfig in order to keep USB support
working on those boards that require it.
Signed-off-by: default avatarTimo Sigurdsson <public_timo.s@silentcreek.de>
Tested-by: default avatarTimo Sigurdsson <public_timo.s@silentcreek.de>
Acked-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      5b1a6181
    • Linus Walleij's avatar
      ARM: versatile: fix MMC/SD interrupt assignment · 20f12758
      Linus Walleij authored 
      Commit 0976c946
"arm/versatile: Fix versatile irq specifications"
has an off-by-one error on the Versatile AB that has
been regressing the Versatile AB hardware for some time.

However it seems like the interrupt assignments have
never been correct and I have now adjusted them according
to the specification. The masks for the valid interrupts
made it impossible to assign the right SIC interrupt
for the MMCI, so I went in and fixed these to correspond
to the specifications, and added references if anyone
wants to double-check.

Due to the Versatile PB including the Versatile AB
as a base DTS file, we need to override and correct
some values to correspond to the actual changes in the
hardware.

For the Versatile PB I don't think the IRQ line
assignment for MMCI has ever been correct for either of
the two MMCI blocks. It would be nice if someone with the
physical PB board could test this.

Patch tested on the Versatile AB, QEMU for Versatile AB
and QEMU for Versatile PB.

Cc: Rob Herring <robh@kernel.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: stable@vger.kernel.org
Fixes: 0976c946 ("arm/versatile: Fix versatile irq specifications")
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      20f12758
    • Linus Walleij's avatar
      ARM: nomadik: set latencies to 8 cycles · a461a3ec
      Linus Walleij authored 
      The Nomadik has sporadic crashes because of these latencies, setting
them to max makes the platform work nicely, so use this values for
now.

These latencies were set to 2 since the Nomadik platform was merged,
but I suspect they never took effect until the right size and
associativity for the cache was specified in the device tree and
that is why the crash comes now.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      a461a3ec
  3. 31 Dec, 2015 1 commit
  5. 22 Dec, 2015 5 commits
  7. 19 Dec, 2015 1 commit
  9. 17 Dec, 2015 2 commits
    • Felipe Balbi's avatar
      ARM: OMAP2+: AM43xx: select ARM TWD timer · 54011103
      Felipe Balbi authored 
      Make sure to tell the kernel that AM437x devices have ARM TWD timer.
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
[grygorii.strashko@ti.com: drop ARM Global timer selection, because
 it's incompatible with PM (cpuidle/cpufreq). So, it's unsafe to enable
 it unconditionally]
Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      54011103
    • Grygorii Strashko's avatar
      ARM: OMAP2+: am43xx: enable GENERIC_CLOCKEVENTS_BROADCAST · 0b3e6fca
      Grygorii Strashko authored 
      System will misbehave in the following case:
- AM43XX only build (UP);
- CONFIG_CPU_IDLE=y
- ARM TWD timer enabled and selected as clockevent device.

In the above case, It's expected that broadcast timer will be used as
backup timer when CPUIdle will put MPU in low power states where ARM
TWD will stop and lose its context. But, the CONFIG_SMP might not be
selected when kernel is built for AM43XX SoC only and, as result,
GENERIC_CLOCKEVENTS_BROADCAST option will not be selected also. This
will break CPUIdle and System will stuck in low power states.

Hence, fix it by selecting GENERIC_CLOCKEVENTS_BROADCAST option for
AM43XX SoCs always and add empty tick_broadcast() function
implementation - no need to send any IPI on UP. After this change
timer1 will be selected as broadcast timer the same way as for SMP,
and CPUIdle will work properly.
Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      0b3e6fca
  11. 15 Dec, 2015 4 commits
    • Lijun Pan's avatar
      fsl-ifc: add missing include on ARM64 · c4aa1937
      Lijun Pan authored 
      Need to include sched.h to fix the following compilation error
if FSL_IFC is enabled on ARM64 machine.

In file included from include/linux/mmzone.h:9:0,
                 from include/linux/gfp.h:5,
                 from include/linux/kmod.h:22,
                 from include/linux/module.h:13,
                 from drivers/memory/fsl_ifc.c:22:
drivers/memory/fsl_ifc.c: In function ‘check_nand_stat’:
include/linux/wait.h:165:35: error: ‘TASK_NORMAL’ undeclared (first use in this function)
 #define wake_up(x)   __wake_up(x, TASK_NORMAL, 1, NULL)
                                   ^
drivers/memory/fsl_ifc.c:136:3: note: in expansion of macro ‘wake_up’
   wake_up(&ctrl->nand_wait);
   ^
include/linux/wait.h:165:35: note: each undeclared identifier is reported only once for each function it appears in
 #define wake_up(x)   __wake_up(x, TASK_NORMAL, 1, NULL)
                                   ^
drivers/memory/fsl_ifc.c:136:3: note: in expansion of macro ‘wake_up’
   wake_up(&ctrl->nand_wait);
   ^

Analysis is as follows:
I put some instrumental code and get the
following .h files inclusion sequence:

In file included from ./arch/arm64/include/asm/compat.h:25:0,
                 from ./arch/arm64/include/asm/stat.h:23,
                 from include/linux/stat.h:5,
                 from include/linux/module.h:10,
                 from drivers/memory/fsl_ifc.c:23:
include/linux/sched.h:113:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘struct’
 struct sched_attr {
 ^

CONFIG_COMPAT=y is enabled while 39 and 48 bit VA is selected.
When 42 bit VA is selected, it does not enable CONFIG_COMPAT=y

In ./arch/arm64/include/asm/stat.h:23, it has
"#ifdef CONFIG_COMPAT"
"#include <asm/compat.h>"
"..."
"#endif"

Since ./arch/arm64/include/asm/stat.h does not
include ./arch/arm64/include/asm/compat.h,
then it will not include include/linux/sched.h
Hence we have to manually add "#include <linux/sched.h>"
in drivers/memory/fsl_ifc.c
Signed-off-by: default avatarLijun Pan <Lijun.Pan@freescale.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      c4aa1937
    • Krzysztof Hałasa's avatar
      ARM: dts: imx6: Fix Ethernet PHY mode on Ventana boards · 3a35e470
      Krzysztof Hałasa authored 
      Gateworks Ventana boards seem to need "RGMII-ID" (internal delay)
PHY mode, instead of simple "RGMII", for their Marvell 88E1510
transceiver. Otherwise, the Ethernet MAC doesn't work with Marvell PHY
driver (TX doesn't seem to work correctly).

Tested on GW5400 rev. C.

This bug affects ARM Fedora 23.
Signed-off-by: default avatarKrzysztof Hałasa <khalasa@piap.pl>
Acked-by: default avatarTim Harvey <tharvey@gateworks.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
      3a35e470
    • Bai Ping's avatar
      ARM: dts: imx: Fix the assigned-clock mismatch issue on imx6q/dl · 13fdae1a
      Bai Ping authored 
      The 'assigned-clock-parents' and 'assigned-clock-rates' list
should corresponding to the 'assigned-clocks' property clock list.
Signed-off-by: default avatarBai Ping <b51503@freescale.com>
Fixes: ed339363 ("ARM: dts: imx6qdl-sabreauto: Allow HDMI and LVDS to work simultaneously")
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
      13fdae1a
    • Kevin Hilman's avatar
      Merge tag 'sunxi-fixes-for-4.4' of... · 8fcacc03
      Kevin Hilman authored 
      Merge tag 'sunxi-fixes-for-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Merge "Allwinner fixes for 4.4" from Maxime Ripard:

Allwinner fixes for 4.4

Two patches, one to fix the touchscreen axis on one Allwinner board, and
the other one fixing a mutex unlocking issue on one error path in the RSB
driver.

* tag 'sunxi-fixes-for-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  bus: sunxi-rsb: unlock on error in sunxi_rsb_read()
  ARM: dts: sunxi: sun6i-a31s-primo81.dts: add touchscreen axis swapping property
      8fcacc03
  13. 12 Dec, 2015 4 commits
  15. 11 Dec, 2015 1 commit
    • Stefan Agner's avatar
      ARM: dts: vf610: use reset values for L2 cache latencies · 9c171905
      Stefan Agner authored 
      Linux on Vybrid used several different L2 latencies so far, none
of them seem to be the right ones. According to the application note
AN4947 ("Understanding Vybrid Architecture"), the tag portion runs
on CPU clock and is inside the L2 cache controller, whereas the data
portion is stored in the external SRAM running on platform clock.
Hence it is likely that the correct value requires a higher data
latency then tag latency.

These are the values which have been used so far:
- The mainline values:
  arm,data-latency = <1 1 1>;
  arm,tag-latency = <2 2 2>;
  Those values have lead to problems on higher clocks. They look
  like a poor translation from the reset values (missing +1 offset
  and a mix up between tag/latency values).
- The Linux 3.0 (SoC vendor BSP) values (converted to DT notation):
  arm,data-latency = <4 2 3>
  arm,tag-latency = <4 2 3>
  The cache initialization function along with the value matches the
  i.MX6 code from the same kernel, so it seems that those values have
  just been copied.
- The Colibri values:
  arm,data-latency = <2 1 2>;
  arm,tag-latency = <3 2 3>;
  Those were a mix between the values of the Linux 3.0 based BSP and
  the mainline values above.
- The SoC Reset values (converted to DT notation):
  arm,data-latency = <3 3 3>;
  arm,tag-latency = <2 2 2>;

So far there is no official statement on what the correct values are.
See also the related Freescale community thread:
https://community.freescale.com/message/579785#579785

For now, the reset values seem to be the best bet. Remove all other
"bogus" values and use the reset value on vf610.dtsi level.
Signed-off-by: default avatarStefan Agner <stefan@agner.ch>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
      9c171905
  17. 10 Dec, 2015 8 commits
  19. 04 Dec, 2015 2 commits
  21. 02 Dec, 2015 2 commits
    • Stefan Agner's avatar
      ARM: dts: vf610: fix clock definition for SAI2 · 531ee1f4
      Stefan Agner authored 
      So far, only the bus clock has been assigned, but in reality the
SAI IP has for clock inputs. The driver has been updated to
make use of the additional clock inputs by c3ecef21 ("ASoC:
fsl_sai: add sai master mode support"). Due to a bug in the
clock tree, the audio clock has been enabled none the less by
the specified bus clock (see "ARM: imx: clk-vf610: fix SAI
clock tree"), which made master mode even without the proper
clock assigned working.

This patch completes the clock definition for SAI2. On Vybrid,
only two MCLK out of the four options are available (the first
being the bus clock itself). See chapter 8.10.1.2.3 of the
Vybrid Reference manual ("SAI transmitter and receiver options
for MCLK selection"). Note: The audio clocks are only required
in master mode.
Signed-off-by: default avatarStefan Agner <stefan@agner.ch>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
      531ee1f4
    • Stefan Agner's avatar
      ARM: imx: clk-vf610: fix SAI clock tree · 3b60a26f
      Stefan Agner authored 
      The Synchronous Audio Interface (SAI) instances are clocked by
independent clocks: The bus clock and the audio clock (as shown in
Figure 51-1 in the Vybrid Reference Manual). The clock gates in
CCGR0/CCGR1 for SAI0 through SAI3 are bus clock gates, as access
tests to the registers with/without gating those clocks have shown.
The audio clock is gated by the SAIx_EN gates in CCM_CSCDR1,
followed by a clock divider (SAIx_DIV). Currently, the parent of
the bus clock gates has been assigned to SAIx_DIV, which is not
involved in the bus clock path for the SAI instances (see chapter
9.10.12, SAI clocking in the Vybrid Reference Manual).

Fix this by define the parent clock of VF610_CLK_SAIx to be the bus
clock.

If the driver needs the audio clock (when used in master mode), a
fixed device tree is required which assign the audio clock properly
to VF610_CLK_SAIx_DIV.
Signed-off-by: default avatarStefan Agner <stefan@agner.ch>
Acked-by: default avatarStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
      3b60a26f
  23. 01 Dec, 2015 2 commits
    • Arnd Bergmann's avatar
      ARM: ixp4xx: fix read{b,w,l} return types · d66e5139
      Arnd Bergmann authored 
      On ixp4xx, the readl() function returns an 'unsigned long' output
when indirect I/O is used. This is unlike any other platform, and
it causes lots of harmless compiler warnings, such as:

drivers/ata/libahci.c: In function 'ahci_show_host_version':
drivers/ata/libahci.c:254:22: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'long unsigned int' [-Wformat=]
drivers/block/mtip32xx/mtip32xx.c: In function 'mtip_hw_read_registers':
drivers/block/mtip32xx/mtip32xx.c:2602:31: warning: format '%X' expects argument of type 'unsigned int', but argument 3 has type 'long unsigned int' [-Wformat=]
drivers/block/cciss.c: In function 'print_cfg_table':
drivers/block/cciss.c:3845:25: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=]

This changes all six of the ixp4xx specific I/O read functions
to return the same types that we have in the normal asm/io.h,
to avoid the warnings.
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarKrzysztof Halasa <khalasa@piap.pl>
      d66e5139
    • Guillaume Delbergue's avatar
      irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB · d5d4fdd8
      Guillaume Delbergue authored 
      This patch is specifically for PCI support on the Versatile PB board using
a DT. Currently, the dynamic IRQ mapping is broken when using DTs. For
example, on QEMU, the SCSI driver is unable to request the IRQ. To fix
this issue, this patch replaces the current dynamic mechanism with a
static value as is done in the non-DT case.
Signed-off-by: default avatarGuillaume Delbergue <guillaume.delbergue@greensocs.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Cc: stable@vger.kernel.org
      d5d4fdd8
  25. 30 Nov, 2015 5 commits
    • Grygorii Strashko's avatar
      ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE · fc827928
      Grygorii Strashko authored 
      Enable REGULATOR_FIXED_VOLTAGE for all OMAP2+ platforms
otherwise system can't boot from SD-card when kernel is
built for single SoC (for example, with CONFIG_SOC_DRA7XX=y only).

It's also required for almost all TI SoC's platforms.
Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      fc827928
    • Neil Armstrong's avatar
      ARM: dts: add dm816x missing spi DT dma handles · f1b2e7c2
      Neil Armstrong authored 
      Add the missing SPI controller DMA handler in the dm816x DT
node, only properties for the two channels on four were present.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      f1b2e7c2
    • Neil Armstrong's avatar
      ARM: dts: add dm816x missing #mbox-cells · d3e41a9f
      Neil Armstrong authored 
      Add missing #mbox-cells for dm816x mbox DT node.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      d3e41a9f
    • Linus Torvalds's avatar
      Linux 4.4-rc3 · 31ade3b8
      Linus Torvalds authored
      31ade3b8
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · c5bc1c93
      Linus Torvalds authored 
      Pull nouveau and radeon fixes from Dave Airlie:
 "Just some nouveau and radeon/amdgpu fixes.

  The nouveau fixes look large as the firmware context files are
  regenerated, but the actual change is quite small"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: make some dpm errors debug only
  drm/nouveau/volt/pwm/gk104: fix an off-by-one resulting in the voltage not being set
  drm/nouveau/nvif: allow userspace access to its own client object
  drm/nouveau/gr/gf100-: fix oops when calling zbc methods
  drm/nouveau/gr/gf117-: assume no PPC if NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK is zero
  drm/nouveau/gr/gf117-: read NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK from correct GPC
  drm/nouveau/gr/gf100-: split out per-gpc address calculation macro
  drm/nouveau/bios: return actual size of the buffer retrieved via _ROM
  drm/nouveau/instmem: protect instobj list with a spinlock
  drm/nouveau/pci: enable c800 magic for some unknown Samsung laptop
  drm/nouveau/pci: enable c800 magic for Clevo P157SM
  drm/radeon: make rv770_set_sw_state failures non-fatal
  drm/amdgpu: move dependency handling out of atomic section v2
  drm/amdgpu: optimize scheduler fence handling
  drm/amdgpu: remove vm->mutex
  drm/amdgpu: add mutex for ba_va->valids/invalids
  drm/amdgpu: adapt vce session create interface changes
  drm/amdgpu: vce use multiple cache surface starting from stoney
  drm/amdgpu: reset vce trap interrupt flag
      c5bc1c93
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