On Wed, 7 Apr 2021 at 18:45, Maxime Ripard wrote:
>
> Hi,
>
> Adding Jörg, Will and Robin,
You forgot to add them actually :)
I've added Robin and Joerg.
>
> On Wed, Mar 31, 2021 at 09:21:19AM +0800, Kevin Tang wrote:
> > > > +static u32 check_mmu_isr(struct sprd_dpu *dpu, u32 reg_val)
> > > >
From: Chunyan Zhang
The second parameter of clk_get_optional() is "const char *", so use NULL
instead of integer 0 to fix a sparse warning like:
">> drivers/iommu/sprd-iommu.c:456:42: sparse: sparse: Using plain integer as
NULL pointer"
Also this patch changes t
Hi Bjorn,
On Wed, 24 Mar 2021 at 04:30, Bjorn Helgaas wrote:
>
> On Mon, Mar 22, 2021 at 05:18:31PM +0800, Chunyan Zhang wrote:
> > From: Hongtao Wu
> >
> > This series adds PCIe controller driver for Unisoc SoCs.
> > This controller is based on DesignWa
From: Hongtao Wu
This series adds PCIe controller driver for Unisoc SoCs.
This controller is based on DesignWare PCIe IP.
Signed-off-by: Hongtao Wu
Signed-off-by: Chunyan Zhang
---
drivers/pci/controller/dwc/Kconfig | 12 +
drivers/pci/controller/dwc/Makefile| 1 +
drivers/pci
From: Hongtao Wu
This series adds PCIe bindings for Unisoc SoCs.
This controller is based on DesignWare PCIe IP.
Reviewed-by: Rob Herring
Signed-off-by: Hongtao Wu
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/pci/sprd-pcie.yaml| 93 +++
1 file changed, 93
From: Chunyan Zhang
This series adds PCIe controller driver for Unisoc SoCs.
This controller is based on DesignWare PCIe IP.
This RESEND patch set V6 is based on v5.12-rc4.
Changes since v5:
* Change "GPL v2" to "GPL".
* Remove exit_p wrapper which used to define remov
From: Chunyan Zhang
This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kconfig
From: Chunyan Zhang
This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings
From: Chunyan Zhang
Changes since v4 (https://lkml.org/lkml/2021/2/4/85):
* Rebased on v5.12-rc1;
* Dropped using syscon node for mapping registers according to Rob's comments.
Changes since v3 (https://lkml.org/lkml/2021/2/3/161):
* Rebased on iommu/next, and fixed compile error reported
Hi Robin,
On Tue, 16 Feb 2021 at 23:10, Robin Murphy wrote:
>
> >>>
> >>> On Wed, Feb 03, 2021 at 05:07:26PM +0800, Chunyan Zhang wrote:
> >>>> From: Chunyan Zhang
> >>>>
> >>>> This iommu module can be used by Unisoc's
On Tue, 16 Feb 2021 at 23:10, Robin Murphy wrote:
>
> On 2021-02-10 19:21, Rob Herring wrote:
> > On Fri, Feb 5, 2021 at 1:21 AM Chunyan Zhang wrote:
> >>
> >> Hi Rob,
> >>
> >> On Fri, 5 Feb 2021 at 07:25, Rob Herring wrote:
> >>>
&
On Thu, 11 Feb 2021 at 03:21, Rob Herring wrote:
>
> On Fri, Feb 5, 2021 at 1:21 AM Chunyan Zhang wrote:
> >
> > Hi Rob,
> >
> > On Fri, 5 Feb 2021 at 07:25, Rob Herring wrote:
> > >
> > > On Wed, Feb 03, 2021 at 05:07:26PM +0800,
Hi Rob,
On Fri, 5 Feb 2021 at 07:25, Rob Herring wrote:
>
> On Wed, Feb 03, 2021 at 05:07:26PM +0800, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > This iommu module can be used by Unisoc's multimedia devices, such as
> > display, Image codec(jpeg) and a fe
From: Magnum Shan
According to the specification, bit[2] represents SPRD_OUTBOX_FIFO_FULL,
not bit[0], so correct it.
Fixes: ca27fc26cd22 ("mailbox: sprd: Add Spreadtrum mailbox driver")
Signed-off-by: Magnum Shan
Signed-off-by: Chunyan Zhang
---
drivers/mailbox/sprd-mailbox.c | 2
From: Chunyan Zhang
This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kconfig
From: Chunyan Zhang
This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings
From: Chunyan Zhang
Changes since v3:
* Rebased on iommu/next, and fixed compile error reported by kernel test robot
;
* %s/iommu/IOMMU/ properly in the whole patchset.
Changes since v2:
* Added a WARN and return 0 if an invalid iova was passed to
sprd_iommu_iova_to_phys();
* Changed the name
On Thu, 4 Feb 2021 at 01:44, Randy Dunlap wrote:
>
> On 2/3/21 1:07 AM, Chunyan Zhang wrote:
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index 192ef8f61310..99e7712f3903 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
&
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kconfig
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings
From: Chunyan Zhang
Changes since v2:
* Added a WARN and return 0 if an invalid iova was passed to
sprd_iommu_iova_to_phys();
* Changed the name of sprd_iommu_write();
* Revised CONFIG_SPRD_IOMMU help graph in Kconfig.
* Revised comments for the struct sprd_iommu_device;
* Converted to use &quo
On Wed, 3 Feb 2021 at 02:02, Robin Murphy wrote:
>
> On 2021-02-02 14:41, Joerg Roedel wrote:
> > On Tue, Feb 02, 2021 at 02:34:34PM +, Robin Murphy wrote:
> >> Nope, I believe if Arm Ltd. had any involvement in this I'd know about it
> >> :)
> >
> > Okay, got confused by thinking of ARM as
On Tue, 2 Feb 2021 at 22:14, Joerg Roedel wrote:
>
> On Tue, Feb 02, 2021 at 06:42:57PM +0800, Chunyan Zhang wrote:
> > +static phys_addr_t sprd_iommu_iova_to_phys(struct iommu_domain *domain,
> > +dma_addr_t iova)
> > +{
> >
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kconfig
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kconfig
From: Chunyan Zhang
Changes since v1:
* Fixed compile errors reported by kernel test robot .
* Changed to use syscon to get mapped registers for iommu and media devices to
avoid double map issue.
* Addressed Robin's comments:
- Added including offset in the returned physical address
On Fri, 22 Jan 2021 at 05:46, Robin Murphy wrote:
>
> On 2021-01-21 11:23, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > This patch only adds display iommu support, the driver was tested with sprd
> > dpu and image codec processor.
> >
> > The io
From: Chunyan Zhang
This patch only adds display iommu support, the driver was tested with sprd
dpu and image codec processor.
The iommu support for others would be added once finished tests with those
devices, such as a few signal processors, including VSP(video),
GSP(graphic), ISP(image
From: Chunyan Zhang
Changes since RFC v2:
* Addressed Robin's comments:
- Add COMPILE_TEST support;
- Use DMA allocator for PTE;
- Revised to avoid resource leak issue;
- Added ->iotlb_sync implemented;
- Moved iommu group allocation to probe;
- Changed some function names to make them s
From: Chunyan Zhang
This patch adds bindings to support display and Image codec(jpeg) iommu
instance.
The iommu support for others would be added once finished tests with those
devices, such as a few signal processors, including VSP(video),
GSP(graphic), ISP(image), and camera CPP, etc.
Signed
On Wed, 13 Jan 2021 at 21:47, Rob Herring wrote:
>
> On Fri, Jan 8, 2021 at 5:34 AM Chunyan Zhang wrote:
> >
> > On Fri, 8 Jan 2021 at 10:25, Rob Herring wrote:
> > >
> > > On Wed, Dec 23, 2020 at 07:16:32PM +0800, Chunyan Zhang wrote:
> > > >
On Wed, 20 Jan 2021 at 20:29, Robin Murphy wrote:
>
> On 2021-01-20 11:40, Chunyan Zhang wrote:
> [...]
> >>> + pgt_base_iova = dom->pgt_va +
> >>> + ((iova - mdata->iova_start) >> SPRD_IOMMU_PAGE_SHIFT);
> >>> +
> >
Hi Robin,
On Wed, 13 Jan 2021 at 03:10, Robin Murphy wrote:
>
> On 2021-01-08 11:38, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > This patch only adds display iommu support, the driver was tested with sprd
> > dpu.
> >
> > The iommu support for
On Fri, 15 Jan 2021 at 18:18, Mike Leach wrote:
>
> Hi Chunyan,
>
> On Fri, 15 Jan 2021 at 08:39, Chunyan Zhang wrote:
> >
> > From: Bin Ji
> >
> > Add ETM amba id to support Cortex-A55(Ananke) and Cortex-A75(Promethus).
> >
> > Signed-
From: Chunyan Zhang
Add AMBA UCI id to support Cortex-A55(Ananke) and Cortex-A75(Promethus).
Signed-off-by: Bin Ji
Signed-off-by: Chunyan Zhang
---
Changes since v1:
* Addressed Mike's comments - changed to use CS_AMBA_UCI_ID().
---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 2
From: Bin Ji
Add ETM amba id to support Cortex-A55(Ananke) and Cortex-A75(Promethus).
Signed-off-by: Bin Ji
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x
From: Chunyan Zhang
This patch only adds display iommu support, the driver was tested with sprd
dpu.
The iommu support for others would be added once finished tests with those
devices, such as Image codec(jpeg) processor, a few signal processors,
including VSP(video), GSP(graphic), ISP(image
From: Chunyan Zhang
Changes since RFC v1:
* Rebased on v5.11-rc1;
* Changed sprd-iommu to tristate;
* Removed check for args_count of iommu OF node, since there's no args
for sprd-iommu device node;
* Added another IP version (i.e. vau);
* Removed unnecessary configs selection from
From: Chunyan Zhang
This patch only adds bindings to support display iommu.
The iommu support for others would be added once finished tests with those
devices, such as Image codec(jpeg) processor, a few signal processors,
including VSP(video), GSP(graphic), ISP(image), and camera CPP, etc
On Fri, 8 Jan 2021 at 10:25, Rob Herring wrote:
>
> On Wed, Dec 23, 2020 at 07:16:32PM +0800, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > This patch only adds bindings to support display iommu, support for others
> > would be added once finished tests wit
On Tue, 5 Jan 2021 at 02:24, Wolfram Sang wrote:
>
> On Mon, Dec 14, 2020 at 12:58:50PM +0800, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > If the i2c device SCL bus being pulled up due to some exception before
> > message transfer done, the system cannot re
From: Chunyan Zhang
This patch only adds display iommu support, the driver was tested with sprd
dpu.
The iommu support for others would be added once finished tests with those
devices, such as Image codec(jpeg) processor, a few signal processors,
including VSP(video), GSP(graphic), ISP(image
From: Chunyan Zhang
This patch only adds bindings to support display iommu, support for others
would be added once finished tests with those devices, such as Image
codec(jpeg) processor, a few signal processors, including VSP(video),
GSP(graphic), ISP(image), and camera CPP, etc.
Signed-off
From: Chunyan Zhang
If the i2c device SCL bus being pulled up due to some exception before
message transfer done, the system cannot receive the completing interrupt
signal any more, it would not exit waiting loop until MAX_SCHEDULE_TIMEOUT
jiffies eclipse, that would make the system seemed hang
From: Chunyan Zhang
If the i2c device SCL bus being pulled up due to some exception before
message transfer done, the system cannot receive the completing interrupt
signal any more, it would not exit waiting loop until MAX_SCHEDULE_TIMEOUT
jiffies eclipse, that would make the system seemed hang
From: Chunyan Zhang
EIC controller have unfixed numbers of banks on different Spreadtrum SoCs,
and each bank has its own base address, the loop of getting there base
address in driver should break if the resource gotten via
platform_get_resource() is NULL already. The later ones would be all
es
> compile warning (!CONFIG_OF on x86_64):
>
> drivers/mmc/host/sdhci-sprd.c:723:34: warning:
> ‘sdhci_sprd_of_match’ defined but not used [-Wunused-const-variable=]
>
> Reported-by: kernel test robot
> Signed-off-by: Krzysztof Kozlowski
Acked-by: Chunyan Zhang
ne nit suggestion: add a comma before "a .read_alarm is ..."
> to false.
>
> Signed-off-by: Alexandre Belloni
Reviewed-by: Chunyan Zhang
Cheers,
Chunyan
> ---
> drivers/rtc/rtc-sc27xx.c | 38 ++
> 1 file changed, 2 insertions(+), 36 del
From: Nemo Han
Add new compatible strings and match data to support sc2730 and sc2721
which are two varieties of SC27XX family.
Signed-off-by: Nemo Han
Signed-off-by: Chunyan Zhang
---
drivers/input/misc/sc27xx-vibra.c | 64 ++-
1 file changed, 54 insertions
From: Chunyan Zhang
Add new compatible strings to support sc2730 and sc2721 which are
two varieties of SC27XX family.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/input/sprd,sc27xx-vibrator.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree
This patchset add new compatible strings and match data to support sc2730 and
sc2721,
also convert the bindings to yaml schema.
Changes since v1:
* fixed the error when running dt_binding_check;
Chunyan Zhang (2):
dt-bindings: input: Convert sc27xx-vibra.txt to json-schema
dt-bindings
From: Chunyan Zhang
Convert the sprd sc27xx vibrator binding to DT schema using json-schema.
Signed-off-by: Chunyan Zhang
---
.../bindings/input/sprd,sc27xx-vibra.txt | 23 --
.../bindings/input/sprd,sc27xx-vibrator.yaml | 46 +++
2 files changed, 46 insertions
On Mon, 16 Nov 2020 at 22:54, Rob Herring wrote:
>
> On Fri, 13 Nov 2020 19:34:50 +0800, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > Convert the sprd sc27xx vibrator binding to DT schema using json-schema.
> >
> > Signed-off-by: Chunyan Zhang
> &g
From: Chunyan Zhang
Convert the sprd sc27xx vibrator binding to DT schema using json-schema.
Signed-off-by: Chunyan Zhang
---
.../bindings/input/sprd,sc27xx-vibra.txt | 23 --
.../bindings/input/sprd,sc27xx-vibrator.yaml | 44 +++
2 files changed, 44 insertions
From: Chunyan Zhang
Add new compatible strings to support sc2730 and sc2721 which are
two varieties of SC27XX family.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/input/sprd,sc27xx-vibrator.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree
From: Nemo Han
Add new compatible strings and match data to support sc2730 and sc2721
which are two varieties of SC27XX family.
Signed-off-by: Nemo Han
Signed-off-by: Chunyan Zhang
---
drivers/input/misc/sc27xx-vibra.c | 64 ++-
1 file changed, 54 insertions
From: Chunyan Zhang
The macro function of_match_ptr() is NULL if CONFIG_OF is not set, in this
case Clang compiler would complain the of_device_id variable is unused.
Reported-by: kernel test robot
Fixes: d8c81aba ("hwspinlock: sprd: Add hardware spinlock driver")
Signed-off-b
chdog driver")
Signed-off-by: Lingling Xu
Signed-off-by: Chunyan Zhang
Reviewed-by: Guenter Roeck
---
drivers/watchdog/sprd_wdt.c | 25 +
1 file changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/watchdog/sprd_wdt.c b/drivers/watchdog/sprd_wdt.c
index f3
From: Chunyan Zhang
After changing to check busy bit for the previous loading operation instead
of the current one, for most of cases, the busy bit is not set for the
first time of read, so there's no need to check so frequently, so this
patch use usleep_range() to replace cpu_relax() to avoid
From: Chunyan Zhang
A few issues about sprd watchdog driver were found recently, this
patchset would fix them.
Changes since v2:
* Added Guenter Roeck's Reviewed-by on patch 2,3;
Changes since v1:
* Added Reviewed-by from Guenter Roeck;
* Abandon original patch 2, add a new patch to use
sure other parts in
the kernel can run normally.
[ chunyan: Massaged changelog ]
Fixes: 477603467009 ("watchdog: Add Spreadtrum watchdog driver")
Signed-off-by: Lingling Xu
Signed-off-by: Chunyan Zhang
Reviewed-by: Guenter Roeck
---
drivers/watchdog/sprd_wdt.c | 9 ++---
1 file
On Tue, 3 Nov 2020 at 02:17, Mark Brown wrote:
>
> On Mon, Nov 02, 2020 at 07:22:39PM +0800, Chunyan Zhang wrote:
> > From: Chunyan Zhang
>
> > Before transfer message, spi devices probably have been in runtime
> > suspended,
> > that would cause the kernel cr
On Tue, 3 Nov 2020 at 07:58, Bjorn Andersson wrote:
>
> On Mon 02 Nov 17:34 CST 2020, Baolin Wang wrote:
>
> > On Friday, October 30, 2020, Chunyan Zhang wrote:
> > > From: Chunyan Zhang
> > >
> > > The macro function of_match_ptr() is NULL if CONFI
From: Chunyan Zhang
Before transfer message, spi devices probably have been in runtime suspended,
that would cause the kernel crash on some platforms once access spi
registers, such as on Unisoc's SoCs. The spi devices can be suspended
until message transfer completed.
Also this patch move
On Fri, 30 Oct 2020 at 21:42, Mark Brown wrote:
>
> On Fri, Oct 30, 2020 at 03:24:44PM +0800, Chunyan Zhang wrote:
> > From: Bangzheng Liu
> >
> > Before transfer one message, spi core would set chipselect, sprd spi
> > device should be resumed from runtime s
.
Fixes: e7d973a31c24 ("spi: sprd: Add SPI driver for Spreadtrum SC9860")
Signed-off-by: Bangzheng Liu
Signed-off-by: Chunyan Zhang
---
drivers/spi/spi-sprd.c | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/spi/spi-sprd.c b/drivers/spi/spi-sp
Hi Coiby,
After removing CONFIG_PM_SLEEP, sprd_pmic_suspend/resume() would not
be built into symbol table with clang compiler though, that would
cause clang compiler report warnings of "unused function" if
CONFIG_PM_SLEEP is not set. So I also prefer to add a __maybe_unused
instead as other
From: Chunyan Zhang
The hardware spinlock devices are defined in the DT, there's no need for
init calls order, remove boilerplate code by using module_platform_driver.
Signed-off-by: Chunyan Zhang
---
drivers/hwspinlock/sprd_hwspinlock.c | 13 +
1 file changed, 1 insertion(+), 12
From: Chunyan Zhang
Changes since v1:
* Change to add __maybe_unsed rather than not use of_match_ptr().
Chunyan Zhang (2):
hwspinlock: sprd: fixed warning of unused variable
'sprd_hwspinlock_of_match'
hwspinlock: sprd: use module_platform_driver() instead postcore
initcall
drivers
From: Chunyan Zhang
The macro function of_match_ptr() is NULL if CONFIG_OF is not set, then
Clang compiler would complain the of_device_id variable is unused.
But using of_match_ptr() is space saving, for this case, the unused structure
'sprd_hwspinlock_of_match' would be not built into symbol
From: Chunyan Zhang
After changing to check busy bit for the previous loading operation instead
of the current one, for most of cases, the busy bit is not set for the
first time of read, so there's no need to check so frequently, so this
patch use usleep_range() to replace cpu_relax() to avoid
From: Chunyan Zhang
After changing to check busy bit for the previous loading operation instead
of the current one, for most of cases, the busy bit is not set for the
first time of read, so there's no need to check so frequently, so this
patch use usleep_range() to replace cpu_relax() to avoid
chdog driver")
Signed-off-by: Lingling Xu
Signed-off-by: Chunyan Zhang
---
drivers/watchdog/sprd_wdt.c | 25 +
1 file changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/watchdog/sprd_wdt.c b/drivers/watchdog/sprd_wdt.c
index f3c90b4afead..b9b1daa9e
From: Chunyan Zhang
A few issues about sprd watchdog driver were found recently, this
patchset would fix them.
Changes since v1:
* Added Reviewed-by from Guenter Roeck;
* Abandon original patch 2, add a new patch to use usleep_range() instead of
busy loop;
* Revised the max times of loop, also
sure other parts in
the kernel can run normally.
[ chunyan: Massaged changelog ]
Fixes: 477603467009 ("watchdog: Add Spreadtrum watchdog driver")
Signed-off-by: Lingling Xu
Signed-off-by: Chunyan Zhang
Reviewed-by: Guenter Roeck
---
drivers/watchdog/sprd_wdt.c | 9 ++---
1 file
On Mon, 26 Oct 2020 at 22:27, Guenter Roeck wrote:
>
> On 10/26/20 1:09 AM, Chunyan Zhang wrote:
> > From: Lingling Xu
> >
> > Don't disable watchdog in resume process, otherwise system would crash
> > once kick watchdog.
> >
>
> This is a bit misl
On Mon, 26 Oct 2020 at 22:36, Guenter Roeck wrote:
>
> On 10/26/20 1:09 AM, Chunyan Zhang wrote:
> > From: Lingling Xu
> >
> > Because cpu_relax() takes different time on different SoCs, for some rare
> > cases, it would take more than 1000 cycles for waitting
On Mon, 26 Oct 2020 at 22:44, Guenter Roeck wrote:
>
> On 10/26/20 1:09 AM, Chunyan Zhang wrote:
> > From: Lingling Xu
> >
> > As the specification described, checking busy bit must be done before kick
> > watchdog.
> >
>
> That is a key functional
From: Chunyan Zhang
A few issues about sprd watchdog driver were found recently, this
patchset would fix them.
Lingling Xu (3):
watchdog: sprd: should not disable watchdog in resume
watchdog: sprd: change timeout value from 1000 to 2000
watchdog: sprd: check busy bit before kick watchdog
From: Lingling Xu
As the specification described, checking busy bit must be done before kick
watchdog.
Fixes: 477603467009 ("watchdog: Add Spreadtrum watchdog driver")
Signed-off-by: Lingling Xu
Signed-off-by: Chunyan Zhang
---
drivers/watchdog/sprd_wdt.c | 27 ++--
From: Lingling Xu
Don't disable watchdog in resume process, otherwise system would crash
once kick watchdog.
Fixes: 477603467009 ("watchdog: Add Spreadtrum watchdog driver")
Signed-off-by: Lingling Xu
Signed-off-by: Chunyan Zhang
---
drivers/watchdog/sprd_wdt.c | 9 ++---
1 fi
("watchdog: Add Spreadtrum watchdog driver")
Signed-off-by: Lingling Xu
Signed-off-by: Chunyan Zhang
---
drivers/watchdog/sprd_wdt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/watchdog/sprd_wdt.c b/drivers/watchdog/sprd_wdt.c
index f3c90b4afead..4f
From: Chunyan Zhang
A few issues about sprd watchdog driver were found recently, this
patchset would fix them.
Lingling Xu (3):
watchdog: sprd: should not disable watchdog in resume
watchdog: sprd: change timeout value from 1000 to 2000
watchdog: sprd: check busy bit before kick watchdog
From: Chunyan Zhang
The hardware spinlock devices are defined in the DT, there's no need for
init calls order, remove boilerplate code by using module_platform_driver.
Signed-off-by: Chunyan Zhang
---
drivers/hwspinlock/sprd_hwspinlock.c | 13 +
1 file changed, 1 insertion(+), 12
From: Chunyan Zhang
The macro function of_match_ptr() is NULL if CONFIG_OF is not set, in this
case Clang compiler would complain the of_device_id variable is unused.
Reported-by: kernel test robot
Fixes: d8c81aba ("hwspinlock: sprd: Add hardware spinlock driver")
Signed-off-b
From: Chunyan Zhang
The hardware spinlock devices are defined in the DT, there's no need for
iinit calls order, remove boilerplate code by using module_platform_driver.
Signed-off-by: Chunyan Zhang
---
drivers/hwspinlock/sprd_hwspinlock.c | 13 +
1 file changed, 1 insertion(+), 12
evin Tang wrote:
> > > > From: Kevin Tang
> > > >
> > > > The Unisoc DRM master device is a virtual device needed to list all
> > > > DPU devices or other display interface nodes that comprise the
> > > > graphics subsystem
> > > &
On Mon, 14 Sep 2020 at 14:32, Liu Shixin wrote:
>
> module_platform_driver() makes the code simpler by eliminating
> boilerplate code.
>
> Signed-off-by: Liu Shixin
Acked-by: Chunyan Zhang
Thanks,
Chunyan
> ---
> drivers/pinctrl/sprd/pinctrl-sprd-sc9860.c | 13 +-
On Tue, 1 Sep 2020 at 23:27, Krzysztof Kozlowski wrote:
>
> Common pattern of handling deferred probe can be simplified with
> dev_err_probe(). Less code and the error value gets printed.
>
> Signed-off-by: Krzysztof Kozlowski
Acked-by: Chunyan Zhang
Thanks,
Chunyan
> ---
DMA mode support")
> Cc:
> Signed-off-by: Krzysztof Kozlowski
Acked-by: Chunyan Zhang
Thanks,
Chunyan
> ---
> drivers/spi/spi-sprd.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/spi/spi-sprd.c b/drivers/spi/spi-sprd.c
> index 6678f
("gpio: Add GPIO driver for Spreadtrum SC9860 platform")
Signed-off-by: Taiping Lai
Signed-off-by: Chunyan Zhang
---
* Changes since v1:
- Rebased on v5.9-rc1.
---
drivers/gpio/gpio-sprd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpio/gpio-sprd.c b/drivers/gpio/g
On Wed, 26 Aug 2020 at 22:48, Krzysztof Kozlowski wrote:
>
> Common pattern of handling deferred probe can be simplified with
> dev_err_probe(). Less code and also it prints the error value.
>
> Signed-off-by: Krzysztof Kozlowski
Acked-by: Chunyan Zhang
Thanks!
> ---
[reply behalf on Taipin]
Hi Baolin,
On Sat, 1 Aug 2020 at 07:59, Baolin Wang wrote:
>
> On Wed, Jul 29, 2020 at 5:35 PM Chunyan Zhang wrote:
> >
> > From: Taiping Lai
> >
> > The raw interrupt status of GPIO maybe set before the interrupt is enabled,
> &g
this issue,
as well as removing the IRQF_NO_SUSPEND flag to allow PMIC irq to be
a wakeup source.
Reported-by: Chunyan Zhang
Signed-off-by: Baolin Wang
Tested-by: Chunyan Zhang
---
Changes from v2:
* rebased on v5.9-rc1;
Changes from v1:
* addressed comments from Lee;
* added tested-by from
From: Prarit Bhargava
printk.time=1/CONFIG_PRINTK_TIME=1 adds a unmodified local hardware clock
timestamp to printk messages. The local hardware clock loses time each
day making it difficult to determine exactly when an issue has occurred in
the kernel log, and making it difficult to determine
From: Prarit Bhargava
printk.time=1/CONFIG_PRINTK_TIME=1 adds a unmodified local hardware clock
timestamp to printk messages. The local hardware clock loses time each
day making it difficult to determine exactly when an issue has occurred in
the kernel log, and making it difficult to determine
: 9a3821c2bb47 ("gpio: Add GPIO driver for Spreadtrum SC9860 platform")
Signed-off-by: Taiping Lai
Signed-off-by: Chunyan Zhang
---
drivers/gpio/gpio-sprd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpio/gpio-sprd.c b/drivers/gpio/gpio-sprd.c
index d7314d39ab65..36ea8a3bd
From: Chunyan Zhang
Provide DIV_S64_ROUND_CLOSEST helper which uses div_s64 to perform
division rounded to the closest integer using signed 64bit
dividend and signed 32bit divisor.
Signed-off-by: Chunyan Zhang
---
include/linux/math64.h | 19 +++
1 file changed, 19 insertions
From: Chunyan Zhang
The patch 2/2 fixes an overflow error by changing to 64-bit divide operations.
In order to avoid compile error on 32-bit architectures, this patchset
also introduced a new 64-bit helper in patch 1/2.
Changes since v1: (https://lkml.org/lkml/2020/7/17/63)
- Added new help
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