Compaq Presario CQ60 laptop with CX20561 gives a wrong pin for the
built-in mic NID 0x17 instead of NID 0x1d, and it results in the
non-working mic. This patch just remaps the pin correctly via fixup.
Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=920604
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This reverts commit ef11982dd7.
That commit creates a problem for some UDCs (at least musb)
where it allocates an endpoints with a 64-byte FIFO, but later
tries to use that same FIFO for 1024-byte packets.
Before implementing this, composite framework needs to be
modified so we only allocate endpoints after we know negotiated
speed, however that needs quite a bit of extra work.
Cc: <stable@vger.kernel.org> # v3.18+
Signed-off-by: Felipe Balbi <balbi@ti.com>
When compiling the kernel in thumb2 (CONFIG_THUMB2_KERNEL option activated), we
hit a compilation crash. The error message is listed below:
---8< -----
Error: cannot use register index with PC-relative addressing -- `str r0,.saved_lpr'
--->8----
Add the .arm directive in the assembly files related to power management.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
The UTMI clock must be selected by any high-speed USB IP. The logic behind it
needs this particular clock.
So, correct the clock in the device tree files affected.
Reported-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: <stable@vger.kernel.org> #3.18
The at91rm9200, at91sam9260, at91sam9261 and at91sam9263 SoCs have slightly
different UDC IPs.
Those differences were previously handled with cpu_is_at91xx macro which
are about to be dropped for multi-platform support, thus we need to
change compatible strings.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
There is no specific driver handling the AHB matrix, this is a simple syscon
device. the matrix is needed by several other drivers including the USB on some
SoCs (at91sam9261 for instance).
Without this definition, the USB will not work on these SoCs.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
It includes a couple of i.MX6 dts fixes, which set an input supply to
vbus regulator. Without the fixes, the voltage of vbus is incorrect
after system boots up.
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Merge tag 'imx-fixes-4.0' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Pull "The i.MX fixes for 4.0" from Shawn Guo:
It includes a couple of i.MX6 dts fixes, which set an input supply to
vbus regulator. Without the fixes, the voltage of vbus is incorrect
after system boots up.
* tag 'imx-fixes-4.0' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx6sl-evk: set swbst_reg as vbus's parent reg
ARM: imx6qdl-sabresd: set swbst_reg as vbus's parent reg
Commit 7ef077a8ad ("usb: isp1760: Move driver from drivers/usb/host/
to drivers/usb/isp1760/") moved the isp1760 driver and changed the
Kconfig option. This makes CONFIG_USB_ISP1760_HCD not selectable
directly anymore. This results in driver being not compiled in when
using vexpress_defconfig and the USB is non-functional.
This patch updates the CONFIG_USB_ISP1760_HCD to CONFIG_USB_ISP1760 to
get back USB functional on vexpress platforms.
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reported-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Make the digicolor specific DT_MACHINE_START entry visible.
Fixes: df8d742e92 (ARM: initial support for Conexant Digicolor CX92755 SoC)
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
with the bigger changes being for the dra7 clocks and hwmod data:
- Fix wl12xx for dm3730-evm
- Fix omap4 prm save and clea
- Fix hwmod clkdm use count
- Fix hwmod data for pcie on dra7
- Fix lockdep for hwmod
- Fix USB on most omap3 boars by enabling it in the defconfig
- Fix the bypass clock source for omap5 and dra7
- Fix the ehrpwm clock for am33xx and am43xx
- Enable AES and SHAM for BeagleBone white
- Use rmii clock for am335x-lxm
- Fix polling intervals for omap5 thermal zones
- Fix slewctrl for am33xx and am43xx
- Fix dra7-evm dcan pinctrl
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Merge tag 'fixes-v4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Pull "omap fixes against v4.0-rc2" from Tony Lindgren:
Fixes for various omap variants, mostly minor fixes for various SoCs
with the bigger changes being for the dra7 clocks and hwmod data:
- Fix wl12xx for dm3730-evm
- Fix omap4 prm save and clea
- Fix hwmod clkdm use count
- Fix hwmod data for pcie on dra7
- Fix lockdep for hwmod
- Fix USB on most omap3 boars by enabling it in the defconfig
- Fix the bypass clock source for omap5 and dra7
- Fix the ehrpwm clock for am33xx and am43xx
- Enable AES and SHAM for BeagleBone white
- Use rmii clock for am335x-lxm
- Fix polling intervals for omap5 thermal zones
- Fix slewctrl for am33xx and am43xx
- Fix dra7-evm dcan pinctrl
* tag 'fixes-v4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix wl12xx on dm3730-evm with mainline u-boot
ARM: OMAP: enable TWL4030_USB in omap2plus_defconfig
ARM: dts: dra7x-evm: avoid possible contention while muxing on CAN lines
ARM: dts: dra7x-evm: Don't use dcan1_rx.gpio1_15 in DCAN pinctrl
ARM: dts: am43xx: fix SLEWCTRL_FAST pinctrl binding
ARM: dts: am33xx: fix SLEWCTRL_FAST pinctrl binding
ARM: dts: OMAP5: fix polling intervals for thermal zones
ARM: dts: am335x-lxm: Use rmii-clock-ext
ARM: dts: am335x-bone-common: enable aes and sham
ARM: dts: am43xx-clocks: Fix ehrpwm tbclk data on am43xx
ARM: dts: am33xx-clocks: Fix ehrpwm tbclk data on am33xx
ARM: dts: OMAP5: Fix the bypass clock source for dpll_iva and others
ARM: dts: DRA7x: Fix the bypass clock source for dpll_iva and others
ARM: OMAP4+: PRM: fix omap4 version of prm_save_and_clear_irqen
ARM: OMAP2+: hwmod: fix deassert hardreset clkdm usecounting
ARM: DRA7: hwmod_data: Fix hwmod data for pcie
ARM: omap2+: omap_hwmod: Set unique lock_class_key per hwmod
This patch adds support to STiH410 SoC.
Please note "st,stih410" is already present in device tree.
The problem is that it is missing the entry in the match table,
and so the L2 cache and other cpus than 0 don't get initialized.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Tested-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Otherwise the guest can abuse that control to cause e.g. PCIe
Unsupported Request responses by disabling memory and/or I/O decoding
and subsequently causing (CPU side) accesses to the respective address
ranges, which (depending on system configuration) may be fatal to the
host.
Note that to alter any of the bits collected together as
PCI_COMMAND_GUEST permissive mode is now required to be enabled
globally or on the specific device.
This is CVE-2015-2150 / XSA-120.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
- little fix for !MMU debug: may also help for randconfig
- fix of 2 errors in LCD clock definitions
- in PM code, not writing the key leads to not execute the action
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Merge tag 'at91-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes
Pull "Second fixes batch for AT91 on 4.0" from Nicolas Ferre:
- little fix for !MMU debug: may also help for randconfig
- fix of 2 errors in LCD clock definitions
- in PM code, not writing the key leads to not execute the action
* tag 'at91-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
ARM: at91/pm: MOR register KEY was missing
ARM: at91/dt: sama5d4: fix lcdck clock definition
ARM: at91/dt: sama5d4: rename lcd_clk into lcdc_clk
ARM: at91: debug: fix non MMU debug
- Fix the SCU virtual mapping
- Add misssing DMA channels for UART nodes
- Fix a sporadic SMP error where CPU1 was not seeing its start address
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Merge tag 'socfpga_fixes_for_v4.0' of git://git.rocketboards.org/linux-socfpga-next into fixes
Pull "Fixes for v4.0 on the SoCFPGA platform" from Dinh Nguyen:
- Fix the SCU virtual mapping
- Add misssing DMA channels for UART nodes
- Fix a sporadic SMP error where CPU1 was not seeing its start address
* tag 'socfpga_fixes_for_v4.0' of git://git.rocketboards.org/linux-socfpga-next:
ARM: socfpga: make sure socfpga_cpu1start_addr is properly flushed
ARM: socfpga: fix uart DMA binding error
ARM: socfpga: Correct SCU virtual mapping in socfpga
Add Freescale Vybrid family as a own entry, along with an entry for
the so far orphan Vybrid device tree files. Also add myself as
a designated reviewer.
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Commit 87366d8cf7 ("arm64: Add boot time configuration of
Intermediate Physical Address size") removed the hardcoded setting
of VTCR_EL2.PS to use ID_AA64MMFR0_EL1.PARange instead, but didn't
remove the (now rather misleading) comment.
Fix the comments to match reality (at least for the next few minutes).
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
The kernel's pgd_index macro is designed to index a normal, page
sized array. KVM is a bit diffferent, as we can use concatenated
pages to have a bigger address space (for example 40bit IPA with
4kB pages gives us an 8kB PGD.
In the above case, the use of pgd_index will always return an index
inside the first 4kB, which makes a guest that has memory above
0x8000000000 rather unhappy, as it spins forever in a page fault,
whist the host happilly corrupts the lower pgd.
The obvious fix is to get our own kvm_pgd_index that does the right
thing(tm).
Tested on X-Gene with a hacked kvmtool that put memory at a stupidly
high address.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
We're using __get_free_pages with to allocate the guest's stage-2
PGD. The standard behaviour of this function is to return a set of
pages where only the head page has a valid refcount.
This behaviour gets us into trouble when we're trying to increment
the refcount on a non-head page:
page:ffff7c00cfb693c0 count:0 mapcount:0 mapping: (null) index:0x0
flags: 0x4000000000000000()
page dumped because: VM_BUG_ON_PAGE((*({ __attribute__((unused)) typeof((&page->_count)->counter) __var = ( typeof((&page->_count)->counter)) 0; (volatile typeof((&page->_count)->counter) *)&((&page->_count)->counter); })) <= 0)
BUG: failure at include/linux/mm.h:548/get_page()!
Kernel panic - not syncing: BUG!
CPU: 1 PID: 1695 Comm: kvm-vcpu-0 Not tainted 4.0.0-rc1+ #3825
Hardware name: APM X-Gene Mustang board (DT)
Call trace:
[<ffff80000008a09c>] dump_backtrace+0x0/0x13c
[<ffff80000008a1e8>] show_stack+0x10/0x1c
[<ffff800000691da8>] dump_stack+0x74/0x94
[<ffff800000690d78>] panic+0x100/0x240
[<ffff8000000a0bc4>] stage2_get_pmd+0x17c/0x2bc
[<ffff8000000a1dc4>] kvm_handle_guest_abort+0x4b4/0x6b0
[<ffff8000000a420c>] handle_exit+0x58/0x180
[<ffff80000009e7a4>] kvm_arch_vcpu_ioctl_run+0x114/0x45c
[<ffff800000099df4>] kvm_vcpu_ioctl+0x2e0/0x754
[<ffff8000001c0a18>] do_vfs_ioctl+0x424/0x5c8
[<ffff8000001c0bfc>] SyS_ioctl+0x40/0x78
CPU0: stopping
A possible approach for this is to split the compound page using
split_page() at allocation time, and change the teardown path to
free one page at a time. It turns out that alloc_pages_exact() and
free_pages_exact() does exactly that.
While we're at it, the PGD allocation code is reworked to reduce
duplication.
This has been tested on an X-Gene platform with a 4kB/48bit-VA host
kernel, and kvmtool hacked to place memory in the second page of
the hardware PGD (PUD for the host kernel). Also regression-tested
on a Cubietruck (Cortex-A7).
[ Reworked to use alloc_pages_exact() and free_pages_exact() and to
return pointers directly instead of by reference as arguments
- Christoffer ]
Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
This reverts commit 02b03846bb.
Alan writes:
it seems there is a regression in there for some configuration of I/O
based devices. I'll take a look at it over the next couple of kernel
releases and see what is up then resubmit it with fixes.
Reported-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit c3762b248f.
The file this fixes is about to be reverted.
Reported-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit d885d4f372 as the
patch that it fixes is about to be reverted.
Reported-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 27082e2654 ("xhci: Clear the host side toggle manually")
Turns out this fix to enable soft resetting endpoints wasn't mature enough.
It caused regression with some usb DVB-T devices and needs some more tuning
to get the endpiont ring pointers set correctly.
The original commit was tagged for stable 3.18, and should be reverted
from there as well.
Cc: stable <stable@vger.kernel.org> # v3.18
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A normal wait adds to the front of the tail. By doing something
similar to fence_default_wait the fence code can run without racing.
This is a complete fix for "panic on suspend from KDE with radeon",
and a partial fix for "Radeon: System pauses on TAHITI". On tahiti
si_irq_set needs to be fixed too, to completely flush the writes
before radeon_fence_activity is called in radeon_fence_enable_signaling.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=90741
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=90861
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@ubuntu.com>
Reported-by: Jon Arne Jørgensen <jonjon.arnearne@gmail.com>
Reported-and-tested-by: Gustaw Smolarczyk <wielkiegie@gmail.com>
Cc: stable@vger.kernel.org (v3.18+)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The state->regmap is initialized by devm_regmap_init_mmio().
So it's fine to use spin_lock rather than mutex to protct state->regmap rmw
operations.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
[Julia.Lawall@lip6.fr: Found an issue with the original patch w.r.t unbalanced
spin_lock call]
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
If rtnl_newlink() fails on it's call to dev_change_net_namespace(), we
have to make use of the ->dellink() method, if present, just like we
do when rtnl_configure_link() fails.
Fixes: 317f4810e4 ("rtnl: allow to create device with IFLA_LINK_NETNSID set")
Signed-off-by: David S. Miller <davem@davemloft.net>
USB vbus 5V is from PMIC SWBST, so set swbst_reg as vbus's
parent reg, it fixed a bug that the voltage of vbus is incorrect
due to swbst_reg is disabled after boots up.
Cc: stable@vger.kernel.org
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
USB vbus 5V is from PMIC SWBST, so set swbst_reg as vbus's
parent reg, it fixed a bug that the voltage of vbus is incorrect
due to swbst_reg is disabled after boots up.
Cc: stable@vger.kernel.org
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
* pxa3xx_nand
- fix timeout issues when draining the FIFO (BCH only)
- don't crash when no chip-selects are used
* hisi504_nand
- depend on HAS_DMA, to fix compile errors
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Merge tag 'for-linus-20150310' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Brian Norris:
* pxa3xx_nand
- fix timeout issues when draining the FIFO (BCH only)
- don't crash when no chip-selects are used
* hisi504_nand
- depend on HAS_DMA, to fix compile errors
* tag 'for-linus-20150310' of git://git.infradead.org/linux-mtd:
mtd: nand: MTD_NAND_HISI504 should depend on HAS_DMA
mtd: pxa3xx_nand: fix driver when num_cs is 0
mtd: nand: pxa3xx: Fix PIO FIFO draining
The patches contain:
* Fix multiple ARM IOMMU drivers to behave well when the
hardware is not present
* Mark MSM driver as broken
* Fix build errors with the new ARM generic io-page-table code
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Merge tag 'iommu-fixes-v4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
"The patches contain:
- fix multiple ARM IOMMU drivers to behave well when the hardware is
not present
- mark MSM driver as broken
- fix build errors with the new ARM generic io-page-table code"
* tag 'iommu-fixes-v4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/io-pgtable-arm: Add built time dependency
iommu/msm: Mark driver BROKEN
iommu/rockchip: Play nice in multi-platform builds
iommu/omap: Play nice in multi-platform builds
iommu/exynos: Play nice in multi-platform builds
iommu/io-pgtable-arm: Fix self-test WARNs on i386
POWER supports irqfds but forgot to advertise them. Some userspace does
not check for the capability, but others check it---thus they work on
x86 and s390 but not POWER.
To avoid that other architectures in the future make the same mistake, let
common code handle KVM_CAP_IRQFD the same way as KVM_CAP_IRQFD_RESAMPLE.
Reported-and-tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Fixes: 297e21053a
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This fixes a potential null pointer dereference.
Cc: <stable@vger.kernel.org> # v3.16+
Fixes: d433201391 ("driver core: dev_get_drvdata: Don't check for NULL dev")
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David Dueck <davidcdueck@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
When dwc2 controller detects a disconnect interrupt,
dwc2_hcd_disconnect() should be called immediately to do clean-up
jobs and set port_connect_status_change flag to notify usb hub
driver disconnect status.
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add support for configfs interface so that f_printer can be used as a
component of usb gadgets composed with it.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Substitute some boilerplate code with a dedicated macro.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
There are no old interface users left, so it can be removed.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The goal is to remove the old function interface, so its (only) user
must be converted to the new interface.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
In order to add configfs support, a usb function must be converted to use
the new interface. This patch converts the function to the new interface
and provides backward compatiblity layer, which can be removed after
all its users are converted to use the new interface.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The legacy printer gadget now contains both a reusable printer function
and legacy gadget proper implementations interwoven, but logically
separate. This patch factors out a reusable f_printer.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
With all the obstacles removed it is possible to allow more than one
instance of the printer function. Since the function requires allocating
character device region, a maximum number of allowed instances is defined.
Such an approach is used in f_acm and in f_hid.
With multiple instances it does not make sense to depend on a
lock_printer_io member of a dynamically allocated (and destroyed) struct
printer_dev to clean up after all instances of the printer function.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Verify that a given usb_ctrlrequest is meant for printer function.
The following parts of the request are tested:
- bmRequestType:Data transfer direction
- bmRequestType:Type
- bmRequestType:Recipient
- bRequest
- wValue for bRequest 1 and 2
- wLength
Additionally, the request is considered meant for this function
iff the decoded interface number matches dev->interface.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Non-standard requests can encode the actual interface number in a
non-standard way. For example composite_setup() assumes
that it is w_index && 0xFF, but the printer function encodes the interface
number in a context-dependet way (either w_index or w_index >> 8).
This can lead to such requests being directed to wrong functions.
This patch adds req_match() method to usb_function. Its purpose is to
verify that a given request can be handled by a given function.
If any function within a configuration provides the method and it returns
true, then it is assumed that the right function is found.
If a function uses req_match(), it should try as hard as possible to
determine if the request is meant for it.
If no functions in a configuration provide req_match or none of them
returns true, then fall back to the usual approach.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
5 uses of container_of() in the same context justify wrapping it
in a static inline function.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The printer_dev can be recovered from printer_func_unbind() function's
parameters.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The mutex is a legacy after semi-automatic Big Kernel Lock removal.
printer_open() does its own locking, so no need to duplicate it.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Call gprinter_setup() from gadget's bind instead of module's init.
Call gprinter_cleaup() corerspondingly. This detaches printer function's
logic from legacy printer gadget's implementation.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Factor out gprinter_setup() and gprinter_cleanup() so that it is
easy to change the place they are called from.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Felipe Balbi