On Mon, Oct 09, 2017 at 09:34:05AM -0700, Kees Cook wrote:
> On Mon, Oct 9, 2017 at 6:59 AM, Johan Hovold wrote:
> > On Thu, Sep 21, 2017 at 04:54:24PM +0530, Allen Pais wrote:
> >> Use setup_timer function instead of initializing timer with the
> >> function and data fields.
> >
> > Why t
The workqueue added manual acquisitions to catch deadlock cases.
Now crossrelease was introduced, some of those are redundant, since
wait_for_completion() already includes the acquisition for itself.
Removed it.
Signed-off-by: Byungchul Park
---
include/linux/workqueue.h | 4 ++--
kernel/workqu
Chagnes from v1
- Add a completion initialization function with a lockdep map
- Enhance readability of the workqueue code
->8-
>From e148617e20ebc9c9eefe7bb222b9bba07cb963bc Mon Sep 17 00:00:00 2001
From: Byungchul Park
Date: Fri, 8 Sep 2017 17:39:48 +0900
Subject: [RESEND PATCH v2 1/2]
Changes from v1
- Enhance commit msg
- Prevent WARN in cpumask_test_cpu() in cpudl_find() when best_cpu == -1
-8<-
>From 7735382d07ae6a61d740ae39ba2ecf169d43b8a2 Mon Sep 17 00:00:00 2001
From: Byungchul Park
Date: Wed, 22 Mar 2017 14:25:56 +0900
Subject: [RESEND PATCH v2 1/2] sched/dead
Currently, migrating tasks to cpu0 unconditionally happens when the
heap is empty, since cp->elements[].cpu was initialized to 0(=cpu0).
We have to distinguish between the empty case and cpu0 to avoid the
unnecessary migrantions. Therefore, it has to return an invalid value
e.i. -1 in that case.
S
It would be better to try to check other siblings first if
SD_PREFER_SIBLING is flaged when pushing tasks - migration.
Suggested-by: Peter Zijlstra
Signed-off-by: Byungchul Park
Reviewed-by: Steven Rostedt (VMware)
---
kernel/sched/rt.c | 80
It would be better to try to check other siblings first if
SD_PREFER_SIBLING is flaged when pushing tasks - migration.
Suggested-by: Peter Zijlstra
Signed-off-by: Byungchul Park
Acked-by: Juri Lelli
---
kernel/sched/deadline.c | 82 -
1 file chan
Change from v10
-. modify a comment a bit as Steven suggested
Change from v9
-. modify a comment a bit so to be more clear as Juri suggested
Change from v8
-. add suggested-by Peterz
-. add several comments
Change from v7
-. fix a trivial typo
-. modify commit messages to expla
arch_kexec_kernel_*() and arch_kimage_file_post_load_cleanup can now be
duplicated among some architectures, so let's factor them out.
Signed-off-by: AKASHI Takahiro
Cc: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
Cc: Michael Ellerman
Cc: Thiago Jung Bauermann
---
arch/powerpc/include/asm/kex
load_other_segments() sets up and adds all the memory segments necessary
other than kernel, including initrd, device-tree blob and purgatory.
Most of the code was borrowed from kexec-tools' counterpart.
arch_kimage_kernel_post_load_cleanup() is meant to free arm64-specific data
allocated for loadi
prepare_elf_headers() can also be useful for other architectures,
including arm64. So let it factored out.
Signed-off-by: AKASHI Takahiro
Cc: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
---
arch/x86/kernel/crash.c | 324
include/linux/kexec.h |
This is a basic purgatory, or a kind of glue code between the two kernels,
for arm64.
Since purgatory is assumed to be relocatable (not executable) object by
kexec generic code, arch_kexec_apply_relocations_add() is required in
general. Arm64's purgatory, however, is a simple asm and all the refer
Modify arm64/Kconfig and Makefile to enable kexec_file_load support.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/Kconfig | 22 ++
1 file changed, 22 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0df64a6a56d4.
This function, being a variant of walk_system_ram_res() introduced in
commit 8c86e70acead ("resource: provide new functions to walk through
resources"), walks through a list of all the resources of System RAM
in reversed order, i.e., from higher to lower.
It will be used in kexec_file implementati
message[] field won't be part of the definition of mz header.
This change is crucial for enabling kexec_file_load on arm64 because
arm64's "Image" binary, as in PE format, doesn't have any data for it and
accordingly the following check in pefile_parse_binary() will fail:
chkaddr(cursor,
The "Image" binary will be loaded at the offset of TEXT_OFFSET from
the start of system memory. TEXT_OFFSET is determined from the header
of the image.
Regarding kernel signature verification, it will be done through
verify_pefile_signature() as arm64's "Image" binary can be seen as
in PE format.
load_crashdump_segments() creates and loads a memory segment of elf core
header for crash dump.
"linux,usable-memory-range" and "linux,elfcorehdr" will add to the 2nd
kernel's device-tree blob. The logic of this cod is also from kexec-tools.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc
The initial user of this system call number is arm64.
Signed-off-by: AKASHI Takahiro
Acked-by: Arnd Bergmann
---
include/uapi/asm-generic/unistd.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/uapi/asm-generic/unistd.h
b/include/uapi/asm-generic/unistd.h
index
This is the fifth round of implementing kexec_file_load() support
on arm64.[1]
Most of the code is based on kexec-tools (along with some kernel code
from x86, which also came from kexec-tools).
This patch series enables us to
* load the kernel, Image, with kexec_file_load system call, and
* o
On 2017/10/10 上午5:54, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
> where we are expecting to fall through.
>
> Cc: Kent Overstreet
> Cc: Shaohua Li
> Cc: linux-bca...@vger.kernel.org
> Cc: linux-r...@vger.kernel.org
> Signed-off-by: Gustavo
On Mon, Oct 09, 2017 at 09:26:14PM +0200, Clemens Gruber wrote:
> The arguments for SDA and SCL were swapped. Fix it.
>
> Signed-off-by: Clemens Gruber
Acked-by: Uwe Kleine-König
Thanks
Uwe
--
Pengutronix e.K. | Uwe Kleine-König|
Industrial Linux Solution
On Mon, Oct 09, 2017 at 05:27:21PM -0700, sathyanarayanan kuppuswamy wrote:
> Hi,
>
>
> On 10/09/2017 12:11 AM, Christoph Hellwig wrote:
> > What does IPC stand for in this device?
> Inter processor communication
Id would suggest to explain that, as it's not how we usually use the
term in Linux?
On 10/08/2017 06:06 PM, Anand Moon wrote:
Hi Krzysztof,
On 6 October 2017 at 12:08, Krzysztof Kozlowski wrote:
On Fri, Oct 6, 2017 at 6:36 AM, Anand Moon wrote:
update the usbdrd link control and phy contol clks.
The commit title and especially commit message should explain why you
are do
From: Huang Ying
When the VMA based swap readahead was introduced, a new knob
/sys/kernel/mm/swap/vma_ra_max_order
was added as the max window of VMA swap readahead. This is to make it
possible to use different max window for VMA based readahead and
original physical readahead. But Minchan
Le 09/10/2017 à 23:22, walter harms a écrit :
Am 08.10.2017 11:39, schrieb Christophe JAILLET:
All error handling paths 'goto err_drop_spawn' except this one.
In order to avoid some resources leak, we should do it as well here.
Fixes: 700cb3f5fe75 ("crypto: lrw - Convert to skcipher")
Signed-of
The previous code assumed a channel has otg capability if a channel
has interrupt property. But, it is not good because:
- Battery charging feature also needs interrupt property.
- Some R-Car Gen3 SoCs (e.g. R-Car D3) don't have OTG capability.
So, this patch checks whether usb 2.0 host node has
This patch cleanups the role_{store,show}() and replaces the local
"bool" for host/device mode selection with the "enum phy_mode" in
the role_store().
Signed-off-by: Yoshihiro Shimoda
---
drivers/phy/renesas/phy-rcar-gen3-usb2.c | 58 ++--
1 file changed, 40 insertion
This patch adds binding for r8a77995 (R-Car D3). Since r8a77995 doesn't
have dedicated pins (ID, VBUS), this will match against the generic
fallback on R-Car D3.
For now, this driver doesn't support usb role swap for r8a77995.
Signed-off-by: Yoshihiro Shimoda
Reviewed-by: Simon Horman
---
Docu
This patch adds SoC-specific parameter to avoid reading/writing
specific registers wrongly if this driver runs on a SoC which doesn't
have dedicated pins (e.g. R-Car D3). This patch also changes the
value "has_otg" to "has_otg_pins" for slightly easier reading of
the code.
Signed-off-by: Yoshihiro
This patch set is based on the latest phy.git / next branch
(the commit id = 415060b21f318e009d865b4bcbf8f220ebc36964)
After this patch set is applied, a usb 2.0 host node that is combined
with usb 2.0 peripheral needs 'dr_mode = "otg";' property.
Changes from v3:
- Use enum phy_mode in patch 2.
Currently the device is kept in D0, there is an opportunity
to save power by enabling runtime pm.
Device can be daisy chained from PMIC and we can't rely on I2C core
for auto resume/suspend. Driver will decide when to resume/suspend.
Reviewed-by: Sakari Ailus
Signed-off-by: Divagar Mohandass
--
This series adds support for eeprom "size" property which will be read by the
driver for eeprom size. The existing ACPI has a different default size which
can be overridden with a DSD property value provided by the platform FW.
This series also adds support for runtime PM. The eeprom driver curren
Obtain the size of the EEPROM chip from DT if the "size" property is
specified for the device.
Suggested-by: Andy Shevchenko
Reviewed-by: Andy Shevchenko
Reviewed-by: Sakari Ailus
Signed-off-by: Divagar Mohandass
---
drivers/misc/eeprom/at24.c | 4
1 file changed, 4 insertions(+)
diff -
This adds eeprom "size" as optional property for i2c eeproms.
The "size" property allows explicitly specifying the size of the
EEPROM chip in bytes.
Acked-by: Rob Herring
Reviewed-by: Sakari Ailus
Signed-off-by: Divagar Mohandass
---
Documentation/devicetree/bindings/eeprom/eeprom.txt | 2 ++
Hi,
Thank you for the comment!
I will submit v4 patch soon. But, I wrote some comments below.
> From: Kishon Vijay Abraham I, Sent: Monday, October 9, 2017 7:07 PM
>
> Hi,
>
> On Friday 01 September 2017 08:11 AM, Yoshihiro Shimoda wrote:
> > The has_otg on previous code has the two meaning:
>
On Wed, Oct 04, 2017 at 10:34:30AM +0200, Peter Zijlstra wrote:
> Right, and print_circular_bug() uses @trace before it ever can be set,
> although I suspect the intention is that that only ever gets called from
> commit_xhlock() where we pass in an initialized @trace. A comment
> would've been goo
On 2017年10月10日 13:49, Michal Hocko wrote:
> On Mon 09-10-17 09:55:49, Michal Hocko wrote:
>> I haven't checked closely but what happens (or should happen) when you
>> do a partial read? Should you get an inconsistent results? Or is this
>> impossible?
>
> Well, after thinking about it little bit
Michael Neuling writes:
> @ -1924,6 +1987,7 @@ struct ppc_emulated ppc_emulated = {
>> WARN_EMULATED_SETUP(mfdscr),
>> WARN_EMULATED_SETUP(mtdscr),
>> WARN_EMULATED_SETUP(lq_stq),
>> +WARN_EMULATED_SETUP(paste),
>
> You'll need to rebase this on powerpc/next as this has changed
On Tue 10-10-17 09:22:20, Xishi Qiu wrote:
> On 2017/10/10 2:26, Michal Hocko wrote:
>
> > On Wed 27-09-17 13:51:09, Xishi Qiu wrote:
> >> On 2017/9/26 19:00, Michal Hocko wrote:
> >>
> >>> On Tue 26-09-17 11:45:16, Vlastimil Babka wrote:
> On 09/26/2017 11:22 AM, Xishi Qiu wrote:
> > On
On Mon 09-10-17 09:55:49, Michal Hocko wrote:
> I haven't checked closely but what happens (or should happen) when you
> do a partial read? Should you get an inconsistent results? Or is this
> impossible?
Well, after thinking about it little bit more, partial reads are always
inconsistent so this
If init fails, we need execute two levels rollback operations: the first
level is for the failed CPU rollback operations, the second level is to
iterate all succeeded CPUs to cancel their registration; currently the
code uses one function to finish these two levels rollback operations.
This commit
If cpuidle init fails, the code misses to unregister the driver for
current CPU. Furthermore, we also need to rollback to cancel all
previous CPUs registration; but the code retrieves driver handler by
using function cpuidle_get_driver(), this function returns back
current CPU driver handler but no
On Tue, Oct 03, 2017 at 09:57:02AM -0700, Linus Torvalds wrote:
> On Tue, Oct 3, 2017 at 9:54 AM, Linus Torvalds
> wrote:
> >
> > Can we consider just reverting the crossrelease thing?
> >
> > The apparent stack corruption really worries me [...]
>
> Side note: I also think the thing is just brok
On Fri, Oct 6, 2017 at 6:25 PM, Ed Swierk wrote:
> I'm trying to untangle a series of problems that suddenly occurred on
> a dual-socket Xeon server system that had been running a bunch of KVM
> workloads just fine for over 6 weeks (4.4.52-grsec kernel,
> Debian-derived userspace).
I think I've n
On Mon, Oct 09, 2017 at 10:19:52PM -0700, Dave Hansen wrote:
> On 10/09/2017 07:56 PM, Aaron Lu wrote:
> > This patch adds inline to __rmqueue() and vmlinux' size doesn't have any
> > change after this patch according to size(1).
> >
> > without this patch:
> >textdata bss dec
From: Dmitry Shmidt
Allow pre-defined overlay_mgr DT fragments to be enabled on the
fly by writing to:
/sys/devices/platform/overlay_mgr/current_overlay
Cc: Rob Herring
Cc: Mark Rutland
Cc: Frank Rowand
Cc: Dmitry Shmidt
Cc: devicet...@vger.kernel.org
Signed-off-by: Dmitry Shmidt
[jstultz
From: Dmitry Shmidt
This patch adds a driver to manage applying pre-defined DT
overlay fragments at bootup.
The pre-defined DT fragments are specified via the main
overlay_mng entry which includes all the possible HW config setups.
Then kernel command line option is used to choose between them.
From: Dmitry Shmidt
This adds the ability to specify multiple DT overlay
configurations, which are predefined in the overlay_mgr entry,
at once via the boot arguments.
Example:
overlay_mgr.overlay_dt_entry=hardware_cfg_0,hardware_cfg_1,...
Cc: Rob Herring
Cc: Mark Rutland
Cc: Frank Rowand
On Thu, Oct 05, 2017 at 06:43:23PM +, Waiman Long wrote:
[...]
> +/*
> + * As all the locks in the dlock list are dynamically allocated, they need
> + * to belong to their own special lock class to avoid warning and stack
> + * trace in kernel log when lockdep is enabled. Statically allocated l
In working with the HiKey and HiKey960 as targets for AOSP,
Dmitry developed the following overlay manager driver, which
allows a number of pre-determined DT overlay configurations to
be defined, and the configurations to be enabled at boot time
via a kernel boot argument.
This has been submitted
On Tue, Oct 03, 2017 at 07:18:24PM +0200, Ingo Molnar wrote:
>
> * Linus Torvalds wrote:
>
> > On Tue, Oct 3, 2017 at 7:06 AM, Fengguang Wu wrote:
> > >
> > > This patch triggers a NULL-dereference bug at update_stack_state().
> > > Although its parent commit also has a NULL-dereference bug, ho
This patch adds the DMA controller driver for Spreadtrum SC9860 platform.
Signed-off-by: Baolin Wang
---
Changes since v3:
- Remove redundant local 'mask' and 'val' variables.
- Simplify sprd_dma_get_req_type() function.
- Change pm_runtime_put_sync() to pm_runtime_put() in probe function.
-
This patch adds the binding documentation for Spreadtrum SC9860 DMA
controller device.
Signed-off-by: Baolin Wang
Acked-by: Rob Herring
---
Changes since v3:
- No update.
Changes since v2:
- No update.
Changes since v1:
- Fix typos.
---
Documentation/devicetree/bindings/dma/sprd-dma.txt |
On 10/09/2017 07:56 PM, Aaron Lu wrote:
> This patch adds inline to __rmqueue() and vmlinux' size doesn't have any
> change after this patch according to size(1).
>
> without this patch:
>textdata bss dec hex filename
> 9968576 5793372 17715200 33477148 1fed21c vmlinux
>
On Tue, Oct 10, 2017 at 2:34 PM, Florian Fainelli wrote:
>
>
> On 10/09/2017 09:49 PM, Joel Stanley wrote:
>> According to the ASPEED datasheet, gigabit speeds require a clock of
>> 100MHz or higher. Other speeds require 25MHz or higher.
>>
>> Signed-off-by: Joel Stanley
>> ---
>
>> @@ -161,6 +17
On Tue, Oct 03, 2017 at 09:54:31AM -0700, Linus Torvalds wrote:
> On Tue, Oct 3, 2017 at 7:06 AM, Fengguang Wu wrote:
> >
> > This patch triggers a NULL-dereference bug at update_stack_state().
> > Although its parent commit also has a NULL-dereference bug, however
> > the call stack looks rather
On 10/09/2017 09:49 PM, Joel Stanley wrote:
> According to the ASPEED datasheet, gigabit speeds require a clock of
> 100MHz or higher. Other speeds require 25MHz or higher.
>
> Signed-off-by: Joel Stanley
> ---
> @@ -161,6 +170,9 @@ static int ftgmac100_reset_and_config_mac(struct
> ftgmac100
Hi Milian,
On Mon, Oct 09, 2017 at 10:33:10PM +0200, Milian Wolff wrote:
> When inline frame resolution is disabled, a bogus srcline is obtained
> for hist entries:
>
> ~
> $ perf report -s sym,srcline --no-inline --stdio -g none
> 95.21% 0.00% [.] __libc_start_main
According to the ASPEED datasheet, gigabit speeds require a clock of
100MHz or higher. Other speeds require 25MHz or higher.
Signed-off-by: Joel Stanley
---
drivers/net/ethernet/faraday/ftgmac100.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/drivers/net/ethernet/f
Without the patch, vmbus_hvsock_device_unregister() can destroy the device
prematurely when close() is called, and can cause NULl dereferencing or
potential data loss (the last portion of the data stream may be dropped
prematurely).
Signed-off-by: Dexuan Cui
Cc: K. Y. Srinivasan
Cc: Haiyang Zha
In order to use i2c from a cold boot, the i2c peripheral must be taken
out of reset. We request a shared reset controller each time a bus
driver is loaded, as the reset is shared between the 14 i2c buses.
On remove the reset is asserted, which only touches the hardware once
the last i2c bus is rem
On Tue, Oct 03, 2017 at 11:32:37AM +0200, Ingo Molnar wrote:
>
> Any progress with fixing this crash?
>
> I'll have to revert this commit otherwise.
I am sorry for late. It was the biggest traditional holiday until
yesterday. I will reply it in another thread.
Thank you.
> Thanks,
>
> I
On Mon, 2017-10-09 at 14:33 +0200, Daniel Lezcano wrote:
> On 09/10/2017 13:51, Arvind Yadav wrote:
> > pr_err()/pr_info() messages should end with a new-line to avoid
> > other messages being concatenated.
[]
> > diff --git a/drivers/thermal/intel_powerclamp.c
> > b/drivers/thermal/intel_powercla
On Mon, Oct 09, 2017 at 03:45:51PM -0700, Prakash Sangappa wrote:
> Userfaultfd feature UFFD_FEATURE_SIGBUS was merged recently and should
> be available in Linux 4.14 release. This patch is for the manpage
> changes documenting this API.
>
> Documents the following commit:
>
> commit 2d6d6f5a09a
Hi Benjamin,
Thanks for the review. I've fixed according to your comments and sent
the v4 patch:
https://patchwork.kernel.org/patch/9995003/
Wei-Ning
On Fri, Oct 6, 2017 at 4:13 PM, Benjamin Tissoires
wrote:
> Hi,
>
> On Oct 05 2017 or thereabouts, Jiri Kosina wrote:
>>
>> [ adding Benjamin to
On Mon, 2017-10-09 at 22:49 +0200, SF Markus Elfring wrote:
> Omit extra messages for a memory allocation failure in these functions.
[]
> diff --git a/net/atm/mpc.c b/net/atm/mpc.c
> @@ -184,10 +184,8 @@ struct atm_mpoa_qos *atm_mpoa_add_qos(__be32 dst_ip,
> struct atm_qos *qos)
> }
>
>
From: Wei-Ning Huang
The current hid-multitouch driver only allow the report of two
orientations, vertical and horizontal. We use the Azimuth orientation
usage 0x3F under the Digitizer usage page to report orientation if the
device supports it.
Changelog:
v1 -> v2:
- Fix commit message.
On Tue, Oct 3, 2017 at 11:23 PM, sakari.ai...@iki.fi
wrote:
> On Wed, Sep 20, 2017 at 11:45:20AM +0300, sakari.ai...@iki.fi wrote:
>> > >> @@ -743,11 +770,17 @@ static int at24_probe(struct i2c_client *client,
>> > >> const
>> > >> struct i2c_device_id *id)
>> > >>
>> > >> i2c_set_clientdat
On Mon, Oct 9, 2017 at 12:14 PM, Mohandass, Divagar
wrote:
> Hi Tomasz,
>
>>-Original Message-
>>From: sakari.ai...@iki.fi [mailto:sakari.ai...@iki.fi]
>>Sent: Tuesday, October 03, 2017 7:21 PM
>>To: Tomasz Figa
>>Cc: Mani, Rajmohan ; Mohandass, Divagar
>>; robh...@kernel.org;
>>mark.rutl
On Fri, Sep 29, 2017 at 10:08:44AM +0200, Benjamin Tissoires wrote:
> On Sep 28 2017 or thereabouts, Andrew Duggan wrote:
> > In certain situations kernel tracking seems to be getting confused
> > and incorrectly reporting the slot of a contact. On example is when
> > the user does a three finger c
On 10/02/2017 03:02 PM, Benjamin Gaignard wrote:
The goal of this series is to simplify driver code when they need to clean up
a previously allocated panel bridge.
Few drivers have "is_panel_bridge" flag to be able to distinguish a
drm_panel_bridge from "simple" drm_bridge.
To remove this flag
Le 10/01/17 à 03:37, Hauke Mehrtens a écrit :
> On 07/29/2017 04:02 PM, Felix Janda wrote:
>> libc-compat.h aims to prevent symbol collisions between uapi and libc
>> headers for each supported libc. This requires continuous coordination
>> between them.
>>
>> The goal of this commit is to improve
From: Eric Biggers
Date: Mon, 9 Oct 2017 14:30:52 -0700
> From: Eric Biggers
>
> Switch the DO_ONCE() macro from the deprecated jump label API to the new
> one. The new one is more readable, and for DO_ONCE() it also makes the
> generated code more icache-friendly: now the one-time initializa
On 14-09-17, 14:26, Viresh Kumar wrote:
> On 30-08-17, 00:37, Masahiro Yamada wrote:
> > As you see arch/arm/boot/dts/uniphier-ld6b.dtsi, it includes
> > uniphier-pxs2.dtsi, which uses "operating-points-v2" property
> > and whose cpufreq device is automatically created.
> >
> > Signed-off-by: Masa
On Tue, Oct 10, 2017 at 01:45:25PM +1100, Jonathan Liu wrote:
> This fixes a kernel oops when unloading the driver due to usb_put_phy
> being called after usb_phy_generic_unregister when the device is
> detached. Calling usb_phy_generic_unregister causes x->dev->driver to
> be NULL in usb_put_phy a
Hi everyone,
This is v4 of my A31 HDMI support series. The DTS patches depend on
the patch "clk: sunxi-ng: sun6i: Export video PLLs" alreay merged.
The DRM patches depend on "regmap: add iopoll-like polling macro for
regmap_field" already merged on a topic branch in the regmap repository.
Changes
Different SoCs have different muxing options and values for the TCON
outputs. Instead of stuffing every possibility in sun4i_tcon_set_mux(),
add a callback pointer to sun4i_tcon_quirks that each TCON variant
can use to provide muxing support.
The current muxing options in sun4i_tcon_set_mux() for
The HDMI driver enables the bus and mod clocks in the bind function, but
does not disable them if it then bails our due to any errors. Neither
does it disable the clocks in the unbind function.
Fix this by adding a proper error path to the bind function, and
clk_disable_unprepare calls to the unbi
The HDMI controller in the A31 SoC is slightly different from the
earlier version. In addition to the TMDS clock and DDC controls,
this version now takes a second DDC clock input.
Add a compatible string for it, and add the DDC clock input to the
list of clocks required.
Signed-off-by: Chen-Yu Ts
Now that we support the HDMI controller on the A31 SoC, we can add it
to the device tree.
This adds a device node for the HDMI controller, and the of_graph nodes
connecting it to the 2 TCONs.
Signed-off-by: Chen-Yu Tsai
---
arch/arm/boot/dts/sun6i-a31.dtsi | 55 +
On SoCs with two display pipelines, it is possible that the two
pipelines are active at the same time, with potentially incompatible
dot clocks.
Let the HDMI encoder's TMDS clock go through all of its parents when
calculating possible clock rates. This allows usage of the second video
PLL as its p
All the A31/A31s devices I own have some kind of HDMI connector wired
to the dedicated HDMI pins on the SoC:
- A31 Hummingbird (standard HDMI connector, display already enabled)
- Sinlinx SinA31s (standard HDMI connector)
- MSI Primo81 tablet (micro HDMI connector)
Enable the display pipeli
The DDC block for the HDMI controller is different on the A31.
This patch adds the register definitions.
Signed-off-by: Chen-Yu Tsai
Acked-by: Maxime Ripard
---
drivers/gpu/drm/sun4i/sun4i_hdmi.h | 31 +++
1 file changed, 31 insertions(+)
diff --git a/drivers/gpu/d
The HDMI driver is written with readl/writel I/O to the registers.
However, to support the A31 variant, which has a different layout
for the DDC registers, it was recommended to use regfields to have
a cleaner implementation. To use regfields, we need to create an
underlying regmap.
This patch onl
On systems with 2 TCONs such as the A31, it is possible to demux the
output of the TCONs to one encoder.
Add support for this for the A31.
Signed-off-by: Chen-Yu Tsai
---
drivers/gpu/drm/sun4i/sun4i_tcon.c | 47 ++
1 file changed, 47 insertions(+)
diff --git
The HDMI controller found in earlier Allwinner SoCs have slight
differences between the A10, A10s, and the A31:
- Need different initial values for the PLL related registers
- Different behavior of the DDC and TMDS clocks
- Different register layout for the DDC portion
- Separate DDC pa
The HDMI controller found in the A31 SoCs is slightly different
from the one already supported, which is found in the A10s:
- Need different initial values for the PLL related registers
- Different behavior of the DDC and TMDS clocks
- Different register layout for the DDC portion
- Sep
On 10/09/2017 08:05 PM, Vance, Jimmy wrote:
Yes, Jerry is taking over as maintainer of hpwdt
Just a note ... if you send such a note as official Acked-by: tag,
patchwork picks it up automatically, and you save the maintainer
a couple of minutes of work.
Guenter
-Original Message-
Fr
On Wed, Oct 4, 2017 at 3:35 PM, Quentin Schulz
wrote:
> Hi Chen-Yu, Linus,
>
> On 03/10/2017 17:08, Chen-Yu Tsai wrote:
>> On Tue, Oct 3, 2017 at 10:47 PM, Maxime Ripard
>> wrote:
>>> Hi Linus,
>>>
>>> On Tue, Oct 03, 2017 at 09:27:17AM +, Linus Walleij wrote:
On Mon, Oct 2, 2017 at 2:08
Yes, Jerry is taking over as maintainer of hpwdt
-Original Message-
From: Guenter Roeck [mailto:groe...@gmail.com] On Behalf Of Guenter Roeck
Sent: Monday, October 9, 2017 7:27 PM
To: Hoemann, Jerry ; linux-watch...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org; Vance, Jimmy
Subject: R
Change the comptiable for support of multi-platform
Make compatible explicit
Add description for reg
Add description for source_cg
Add description for mediatek,latch-ck
Note that source_cg and mediatek,latch-ck are optional for some projects,
eg, MT2701 do not have source_cg, and MT2712 do not need
the origin design of hs400_tune_response is for mt8173 because of
mt8173 has a special design. for doing that, we add a new member
"compatible", by now it's only for mt8173.
Signed-off-by: Chaotian Jing
---
drivers/mmc/host/mtk-sd.c | 11 +--
1 file changed, 9 insertions(+), 2 deletions(
bit7 of PATCH_BIT1 has different meaning in new design, to
compatible with previous platform, clear this bit in new
platform.
Signed-off-by: Chaotian Jing
---
drivers/mmc/host/mtk-sd.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.
some platform(eg.mt2701) does not support "stop clk fix", in
this case, need set correct latch-ck to avoid crc error caused
by stop clock block-internally.
Signed-off-by: Chaotian Jing
---
drivers/mmc/host/mtk-sd.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/mmc/host/mtk-sd
data lines have applied to perfer to use rise edge, also need
apply it to cmd line.
Signed-off-by: Chaotian Jing
---
drivers/mmc/host/mtk-sd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 4cffc04..731574e 100644
enlarge outstanding value to improve read performance
Signed-off-by: Chaotian Jing
---
drivers/mmc/host/mtk-sd.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 3a1756a..4cffc04 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/
devicetree bindings has been updated to support multi-platforms,
so that each platform has its owns compatible name.
And, this compatible name may used in driver to distinguish with
other platform.
Signed-off-by: Chaotian Jing
---
arch/arm64/boot/dts/mediatek/mt8173.dtsi | 12
1 fil
mt2701/mt2712 supports async fifo & data tune, which can improve
host stability.
Signed-off-by: Chaotian Jing
---
drivers/mmc/host/mtk-sd.c | 52 +--
1 file changed, 50 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc
mt2712 supports stop_clk fix and enhance_rx, which can improve
host stability.
Signed-off-by: Chaotian Jing
---
drivers/mmc/host/mtk-sd.c | 47 +++
1 file changed, 43 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/h
source clock need an independent cg to control, when doing clk mode
switch, need gate source clock to avoid hw issue(multi-bit sync hw hang)
Signed-off-by: Chaotian Jing
---
drivers/mmc/host/mtk-sd.c | 23 ++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/driv
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