Commit Graph

826113 Commits

Author SHA1 Message Date
Christian Hohnstaedt
4f430487e2
dt-bindings: regulator: add LS2 load switch documentation
Document device-tree settings of the load-switch LS2
in the tps65218 device.

Signed-off-by: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:49:34 +00:00
Gustavo A. R. Silva
97b047e72b
regulator: da9062: Use struct_size() in devm_kzalloc()
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct foo {
    int stuff;
    struct boo entry[];
};

size = sizeof(struct foo) + count * sizeof(struct boo);
instance = alloc(size, GFP_KERNEL)

Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:

instance = alloc(struct_size(instance, entry, count), GFP_KERNEL)

Notice that, in this case, variable size is not necessary, hence it is
removed.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:49:19 +00:00
Axel Lin
1ec9c179c0
regulator: mcp16502: Remove module version
The module version is unlikely to be updated, use kernel version should be
enough.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:49:04 +00:00
Axel Lin
87919e0cf1
regulator: fan53555: Check pdata->slew_rate setting
Current code does not really avoid array access out of bounds,
fix it by add checking for pdata->slew_rate.
If pdata->slew_rate is too big, it's a bug in pdata that needs fix.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:48:49 +00:00
Axel Lin
5db2efbe11
regulator: arizona_ldo1: Simplify arizona_ldo1_hc_set/get_voltage_sel
Setup .vsel_reg and .vsel_mask then we can use the standard
set/get_voltage_sel_regmap helpers to simplify the code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:48:34 +00:00
Axel Lin
c25d47888f
regulator: wm831x-dcdc: Fix list of wm831x_dcdc_ilim from mA to uA
The wm831x_dcdc_ilim entries needs to be uA because it is used to compare
with min_uA and max_uA.
While at it also make the array const and change to use unsigned int.

Fixes: e4ee831f94 ("regulator: Add WM831x DC-DC buck convertor support")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:47:56 +00:00
Cheng-Yi Chiang
cdcdba5d62
ASoC: qcom: Kconfig: fix dependency for sdm845
SND_SOC_CROS_EC_CODEC depends on MFD_CROS_EC.
Add that dependency to SND_SOC_SDM845 to fix unmet direct dependencies
warning.

Fixes: 74c6ecf419 (ASoC: qcom: Kconfig: select dmic for sdm845)
Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:45:46 +00:00
Jenny TC
716d53cc78
ASoC: Intel: Boards: Add Maxim98373 support
This patch enables the reuse of kbl_da7219_max98927 machine driver to
support max98373. The same machine driver is modified for cases where one
amplifier is swapped out with another. Most of the changes are about
renaming the codec and codec_dai names, with minor differences due to
support for 24 bits in one case and 16 in the other.

Signed-off-by: Jenny TC <jenny.tc@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:45:36 +00:00
Oded Gabbay
e99f1683bb habanalabs: use u64 when comparing variables' sum to u32_max
This patch fixes two smatch warnings about two if statements that are
always true because of the types of the variables used - u32 when
comparing the sum to u32_max.

The patch changes the types to be u64 so the accumalted sum can be checked
if it is larger than u32_max

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 12:44:25 +01:00
Jiada Wang
8af6c521cc
ASoC: rsnd: gen: fix SSI9 4/5/6/7 busif related register address
Currently each SSI unit 's busif mode/adinr/dalign address is
registered by: (in busif4 case)
RSND_GEN_M_REG(SSI_BUSIF4_MODE, 0x500, 0x80)
RSND_GEN_M_REG(SSI_BUSIF4_ADINR,0x504, 0x80)
RSND_GEN_M_REG(SSI_BUSIF4_DALIGN, 0x508, 0x80)

But according to user manual 41.1.4 Register Configuration
ssi9 4/5/6/7 busif mode/adinr/dalign register address
( SSI9-[4/5/6/7]_BUSIF_[MODE/ADINR/DALIGN] )
are out of this rule.

This patch registers ssi9 4/5/6/7 mode/adinr/dalign register
as single register, and access these registers in case of
SSI9 BUSIF 4/5/6/7.

Fixes: commit 8c9d750333 ("ASoC: rsnd: ssiu: Support BUSIF other than BUSIF0")
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-26 11:43:18 +00:00
Vladimir Murzin
d410a8a49e ARM: 8849/1: NOMMU: Fix encodings for PMSAv8's PRBAR4/PRLAR4
To access PRBARn, where n is referenced as a binary number:

MRC p15, 0, <Rt>, c6, c8+n[3:1], 4*n[0] ; Read PRBARn into Rt
MCR p15, 0, <Rt>, c6, c8+n[3:1], 4*n[0] ; Write Rt into PRBARn

To access PRLARn, where n is referenced as a binary number:

MRC p15, 0, <Rt>, c6, c8+n[3:1], 4*n[0]+1 ; Read PRLARn into Rt
MCR p15, 0, <Rt>, c6, c8+n[3:1], 4*n[0]+1 ; Write Rt into PRLARn

For PR{B,L}AR4, n is 4, n[0] is 0, n[3:1] is 2, while current encoding
done with n[0] set to 1 which is wrong. Use proper encoding instead.

Fixes: 046835b4aa ("ARM: 8757/1: NOMMU: Support PMSAv8 MPU")
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:35:56 +00:00
Lanqing Liu
5b9cea15a3 serial: sprd: Modify the baud rate calculation formula
When the source clock is not divisible by the expected baud rate and
the remainder is not less than half of the expected baud rate, the old
formular will round up the frequency division coefficient. This will
make the actual baud rate less than the expected value and can not meet
the external transmission requirements.

Thus this patch modifies the baud rate calculation formula to support
the serial controller output the maximum baud rate.

Signed-off-by: Lanqing Liu <lanqing.liu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 12:35:02 +01:00
Vladimir Murzin
9db043d36b ARM: 8848/1: virt: Align GIC version check with arm64 counterpart
arm64 has got relaxation on GIC version check at early boot stage due
to update of the GIC architecture let's align ARM with that.

To help backports (even though the code was correct at the time of writing)
Fixes: e59941b9b3 ("ARM: 8527/1: virt: enable GICv3 system registers")
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:33:48 +00:00
Trond Myklebust
a73881c96d SUNRPC: Fix an Oops in udp_poll()
udp_poll() checks the struct file for the O_NONBLOCK flag, so we must not
call it with a NULL file pointer.

Fixes: 0ffe86f480 ("SUNRPC: Use poll() to fix up the socket requeue races")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-26 06:33:02 -05:00
Marek Szyprowski
ca70ea43f8 ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
MCPM does a soft reset of the CPUs and uses common cpu_resume() routine to
perform low-level platform initialization. This results in a try to install
HYP stubs for the second time for each CPU and results in false HYP/SVC
mode mismatch detection. The HYP stubs are already installed at the
beginning of the kernel initialization on the boot CPU (head.S) or in the
secondary_startup() for other CPUs. To fix this issue MCPM code should use
a cpu_resume() routine without HYP stubs installation.

This change fixes HYP/SVC mode mismatch on Samsung Exynos5422-based Odroid
XU3/XU4/HC1 boards.

Fixes: 3721924c81 ("ARM: 8081/1: MCPM: provide infrastructure to allow for MCPM loopback")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:32:54 +00:00
Sugaya Taichi
0e585aabc5 dt-bindings: serial: Add Milbeaut serial driver description
Add DT bindings document for Milbeaut serial driver.

Signed-off-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 12:30:45 +01:00
Lubomir Rintel
f4817843e3 serial: 8250_of: assume reg-shift of 2 for mrvl,mmp-uart
There are two other drivers that bind to mrvl,mmp-uart and both of them
assume register shift of 2 bits. There are device trees that lack the
property and rely on that assumption.

If this driver wins the race to bind to those devices, it should behave
the same as the older deprecated driver.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 12:30:45 +01:00
Lubomir Rintel
fe9ed6d248 serial: 8250_pxa: honor the port number from devicetree
Like the other OF-enabled drivers, use the port number from the firmware if
the devicetree specifies an alias:

  aliases {
      ...
      serial2 = &uart2; /* Should be ttyS2 */
  }

This is how the deprecated pxa.c driver behaved, switching to 8250_pxa
messes up the numbering.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 12:30:44 +01:00
Gustavo A. R. Silva
d56f00fd53 tty: hvc_xen: Mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch fixes the following warning:

drivers/tty/hvc/hvc_xen.c: In function ‘xencons_backend_changed’:
drivers/tty/hvc/hvc_xen.c:493:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dev->state == XenbusStateClosed)
      ^
drivers/tty/hvc/hvc_xen.c:496:2: note: here
  case XenbusStateClosing:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 12:30:44 +01:00
Gustavo A. R. Silva
3e913eebdf tty: n_gsm: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/tty/n_gsm.c: In function ‘gsm_dlci_data’:
drivers/tty/n_gsm.c:1582:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (tty) {
      ^
drivers/tty/n_gsm.c:1587:2: note: here
  case 1:
  ^~~~
drivers/tty/n_gsm.c: In function ‘gsm1_receive’:
  CC [M]  drivers/scsi/snic/snic_disc.o
  CC [M]  drivers/net/wireless/realtek/rtlwifi/pci.o
  CC      drivers/usb/early/xhci-dbc.o
drivers/tty/n_gsm.c:1981:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
   gsm->fcs = INIT_FCS;
            ^
drivers/tty/n_gsm.c:1983:2: note: here
  case GSM_ADDRESS: /* Address continuation */
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 12:30:44 +01:00
Felix Fietkau
c8846e1015 mt76: add driver for MT7603E and MT7628/7688
This driver is for a newer generation of 2x2 MediaTek 802.11n chipsets.
MT7603E is a PCIe chip.
MT7628 and MT7688 are MIPS SoC devices with built-in WLAN.
MT7688 is limited to 1x1

This driver fully supports AP, station, mesh, ad-hoc and monitor mode.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Felix Fietkau
782eff0949 dt-bindings: net: mt76: update binding for mt7603 driver
In addition to MT7603E PCI devices, the driver supports the WLAN core on
MT7628/MT7688, which needs to be defined in DT.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Felix Fietkau
9c193de548 mt76: add driver callback for when a sta is associated
MT7603 needs this to update the HT/VHT capabilities

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Lorenzo Bianconi
6cad8240a5 mt76: remove no longer used routine declarations
Remove following routine declarations that are no longer used
after commit cfca5f693c5d ("mt76usb: remove usb_mcu.c"):

- mt76u_mcu_complete_urb
- mt76u_deinit
- mt76u_buf_free
- mt76u_submit_urb

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Lorenzo Bianconi
200abe6a96 mt76: usb: check urb->num_sgs limit in mt76u_process_rx_entry
check nsgs value is less than urb->num_sgs in mt76u_process_rx_entry
in order to avoid an out-of-bound access of urb->sg array

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:29:56 +01:00
Stefan Agner
b7e8c9397c ARM: 8845/1: use unified assembler in c files
Use unified assembler syntax (UAL) in inline assembler. Divided
syntax is considered deprecated. This will also allow to build
the kernel using LLVM's integrated assembler.

When compiling non-Thumb2 GCC always emits a ".syntax divided"
at the beginning of the inline assembly which makes the
assembler fail. Since GCC 5 there is the -masm-syntax-unified
GCC option which make GCC assume unified syntax asm and hence
emits ".syntax unified" even in ARM mode. However, the option
is broken since GCC version 6 (see GCC PR88648 [1]). Work
around by adding ".syntax unified" as part of the inline
assembly.

[0] https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html#index-masm-syntax-unified
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88648

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:26:08 +00:00
Stefan Agner
e44fc38818 ARM: 8844/1: use unified assembler in assembly files
Use unified assembler syntax (UAL) in assembly files. Divided
syntax is considered deprecated. This will also allow to build
the kernel using LLVM's integrated assembler.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:26:07 +00:00
Stefan Agner
c001899a5d ARM: 8843/1: use unified assembler in headers
Use unified assembler syntax (UAL) in headers. Divided syntax is
considered deprecated. This will also allow to build the kernel
using LLVM's integrated assembler.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:26:06 +00:00
Stefan Agner
a216376add ARM: 8841/1: use unified assembler in macros
Use unified assembler syntax (UAL) in macros. Divided syntax is
considered deprecated. This will also allow to build the kernel
using LLVM's integrated assembler.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:25:43 +00:00
Lorenzo Bianconi
04eb16fc70 mt76: usb: simplify mt76u_tx_build_sg routine
Use skb_to_sgvec instad of skb_to_sgvec_nomark in mt76u_tx_build_sg.
Remove nsgs check in mt76u_tx_build_sg since it is already performed
by skb_to_sgvec

Suggested-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Lorenzo Bianconi
888199b892 mt76: usb: simplify rx buffer allocation
Squash mt76u_buf_alloc_sg and mt76u_buf_alloc and remove duplicated
code. Reuse mt76u_refill_rx in mt76u_buf_alloc

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Lorenzo Bianconi
4de92bf10c mt76: usb: introduce mt76u_fill_bulk_urb routine
Add mt76u_fill_bulk_urb to initialize tx/rx urbs and
remove duplicate code

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Lorenzo Bianconi
cb1847cce0 mt76: usb: fix warning in mt76u_buf_free
Fix following static checker warning in mt76u_buf_free:
  drivers/net/wireless/mediatek/mt76/usb.c:372 mt76u_buf_free()
  warn: address of 'urb->sg[i]' is non-NULL

There is no need to check sg page pointer since urb->num_sgs
has been already validated in mt76u_fill_rx_sg

Fixes: cb83585e11 ("mt76: usb: fix possible memory leak in mt76u_buf_free")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Stanislaw Gruszka
fc994dbbd9 mt76usb: remove usb_mcu.c
Don't need separate file just for kmalloc/kfree.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Stanislaw Gruszka
a18a494f90 mt76usb: use synchronous msg for mcu command responses
Use usb_bulk_msg for reading MCU command responses. This simplify code
a lot.

Together with 97a3005759c ("mt76usb: allow mt76u_bulk_msg be used
for reads") it also fix possible problems with rx data buffers
not being aligned and contained within single page. After doing
page_frag_alloc(1024) consecutive page_frag_alloc(PAGE_SIZE) will
alloc PAGE_SIZE buffer at PAGE_SIZE - 1024 offset.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Stanislaw Gruszka
b63aa031b0 mt76usb: allow mt76u_bulk_msg be used for reads
Extend mt76u_bulk_msg() such it can be used for synchronous bulk reads.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-02-26 12:25:18 +01:00
Sebastian Andrzej Siewior
74ffe79ae5 ARM: 8840/1: use a raw_spinlock_t in unwind
Mostly unwind is done with irqs enabled however SLUB may call it with
irqs disabled while creating a new SLUB cache.

I had system freeze while loading a module which called
kmem_cache_create() on init. That means SLUB's __slab_alloc() disabled
interrupts and then

->new_slab_objects()
 ->new_slab()
  ->setup_object()
   ->setup_object_debug()
    ->init_tracking()
     ->set_track()
      ->save_stack_trace()
       ->save_stack_trace_tsk()
        ->walk_stackframe()
         ->unwind_frame()
          ->unwind_find_idx()
           =>spin_lock_irqsave(&unwind_lock);

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:24:51 +00:00
Yang Shi
143c2a89e0 ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
When running kprobe on -rt kernel, the below bug is caught:

|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:931
|in_atomic(): 1, irqs_disabled(): 128, pid: 14, name: migration/0
|Preemption disabled at:[<802f2b98>] cpu_stopper_thread+0xc0/0x140
|CPU: 0 PID: 14 Comm: migration/0 Tainted: G O 4.8.3-rt2 #1
|Hardware name: Freescale LS1021A
|[<8025a43c>] (___might_sleep)
|[<80b5b324>] (rt_spin_lock)
|[<80b5c31c>] (__patch_text_real)
|[<80b5c3ac>] (patch_text_stop_machine)
|[<802f2920>] (multi_cpu_stop)

Since patch_text_stop_machine() is called in stop_machine() which
disables IRQ, sleepable lock should be not used in this atomic context,
 so replace patch_lock to raw lock.

Signed-off-by: Yang Shi <yang.shi@linaro.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:24:50 +00:00
Mike Leach
28941701a4 ARM: 8837/1: coresight: etmv4: Update ID register table to add UCI support
Adds macro to enable UCI entries to be added to AMBA ID tables.

Updates the ID register tables to contain a UCI entry for the A35 ETM
device to allow correct matching of driver in the amba bus code.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:23:50 +00:00
Mike Leach
4a2910fa80 ARM: 8836/1: drivers: amba: Update component matching to use the CoreSight UCI values.
The patches provide an update of amba_device and matching code to handle
the additional registers required for the Class 0x9 (CoreSight) UCI.

The *data pointer in the amba_id is used by the driver to provide extended
ID register values for matching.

CoreSight components where PID/CID pair is currently sufficient for
unique identification need not provide this additional information.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:23:49 +00:00
Mike Leach
e85fa28ebc ARM: 8838/1: drivers: amba: Updates to component identification for driver matching.
The CoreSight specification (ARM IHI 0029E), updates the ID register
requirements for components on an AMBA bus, to cover both traditional
ARM Primecell type devices, and newer CoreSight and other components.

The Peripheral ID (PID) / Component ID (CID) pair is extended in certain
cases to uniquely identify components. CoreSight components related to
a single function can share Peripheral ID values, and must be further
identified using a Unique Component Identifier (UCI). e.g. the ETM, CTI,
PMU and Debug hardware of the A35 all share the same PID.

Bits 15:12 of the CID are defined to be the device class.
Class 0xF remains for PrimeCell and legacy components.
Class 0x9 defines the component as CoreSight (CORESIGHT_CID above)
Class 0x0, 0x1, 0xB, 0xE define components that do not have driver support
at present.
Class 0x2-0x8,0xA and 0xD-0xD are presently reserved.

The specification futher defines which classes of device use the standard
CID/PID pair, and when additional ID registers are required.

This patch introduces the amba_cs_uci_id structure which will be used in
all coresight drivers for indentification via the private data pointer in
the amba_id structure.

Existing drivers that currently use the amba_id->data pointer for private
data are updated to use the amba_cs_uci_id->data pointer. Macros and
inline functions are added to simplify this code.

Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:23:48 +00:00
John Zhao
eac473bce4 firmware: hardcode the debug message for -ENOENT
When no file /path was found, the error code of -ENOENT
enumerated in errno-base.h, is returned. Stating clearly that
the file was not found is much more useful for debugging, So
let's be explicit about that.

Signed-off-by: John Zhao <yuankuiz@codeaurora.org>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 11:59:43 +01:00
Dmitry Osipenko
563b9372f7 usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
The ChipIdea's platform device need to be unregistered on Tegra's driver
module removal.

Fixes: dfebb5f43a ("usb: chipidea: Add support for Tegra20/30/114/124")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 11:57:38 +01:00
Lu Baolu
117266fd59 iommu/vt-d: Check identity map for hot-added devices
The Intel IOMMU driver will put devices into a static identity
mapped domain during boot if the kernel parameter "iommu=pt" is
used. That means the IOMMU hardware will translate a DMA address
into the same memory address.

Unfortunately, hot-added devices are not subject to this. That
results in some devices not working properly after hot added. A
quick way to reproduce this issue is to boot a system with

    iommu=pt

and, remove then readd the pci device with

    echo 1 > /sys/bus/pci/devices/[pci_source_id]/remove
    echo 1 > /sys/bus/pci/rescan

You will find the identity mapped domain was replaced with a
normal domain.

Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: stable@vger.kernel.org
Reported-by: Jis Ben <jisben@google.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Tested-by: James Dong <xmdong@google.com>
Fixes: 99dcadede4 ('intel-iommu: Support PCIe hot-plug')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-02-26 11:55:14 +01:00
Alexander Usyskin
b5958faa34 mei: bus: move hw module get/put to probe/release
Fix unbalanced module reference counting during internal reset, which
prevents the drivers unloading.
Tracking mei_me/txe modules on mei client bus via
mei_cldev_enable/disable is error prone due to possible internal
reset flow, where clients are disconnected underneath.
Moving reference counting to probe and release of mei bus client
driver solves this issue in simplest way, as each client provides only
a single connection to a client bus driver.

Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 11:53:56 +01:00
Florian Fainelli
11f27765f6 staging: fsl-dpaa2: ethsw: Add missing netdevice check
port_switchdev_event() does not check that the target network device is
actually backed by the ethsw driver, this could be problematic in a
stacked environment case.

Fixes: 44baaa43d7 ("staging: fsl-dpaa2/ethsw: Add Freescale DPAA2 Ethernet Switch driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 11:52:46 +01:00
Michael Straube
2c62d36c81 staging: rtl8188eu: cleanup comparsions to NULL in rtl8188eu_xmit.c
Use !x instead of x == NULL. Reported by checkpatch.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 11:52:46 +01:00
Michael Straube
423c16f4bf staging: rtl8188eu: add spaces around '*' in rtl8188e_cmd.c
Add spaces around '*' to follow kernel coding style.
Reported by checkpatch.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 11:52:46 +01:00
Michael Straube
5241d965b4 staging: rtl8188eu: remove unused function declarations
There are no definitions of odm_DIGbyRSSI_LPS(), ODM_PhyStatusQuery()
and ODM_MacStatusQuery() in the driver code. So remove the unused
declarations from the headers odm.h and odm_hwconfig.h.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 11:52:46 +01:00
Michael Straube
87dd57588a staging: rtl8188eu: remove blank line between declarations
Remove unnecessary blank line between declarations.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-26 11:52:46 +01:00