If using DT_MACHINE_START when enabled CONFIG_OF, the nr of mdesc is ~0.
The value of __machine_arch_type is passsed from bootloader using reigster
r1, and assigned in head-common.S. Remove this line to avoid overwrite it.
Signed-off-by: Peng Fan van.free...@gmail.com
---
arch/arm/kernel
On 08/19/2014 03:43 PM, Russell King - ARM Linux wrote:
On Tue, Aug 19, 2014 at 11:21:31AM +0800, Peng Fan wrote:
If using DT_MACHINE_START when enabled CONFIG_OF, the nr of mdesc is ~0.
The value of __machine_arch_type is passsed from bootloader using reigster
r1, and assigned in head
This patch fixes sparse warning:
obsolete struct initializer, use C99 syntax
Signed-off-by: Peng Fan van.free...@gmail.com
---
drivers/tty/vt/vt.c | 16 ++--
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index b33b00b
;
data = mmio_read_buf(run-mmio.data, len);
This piece code also tells that len variable does not exceeds 4 bytes.
So, remove 8 bytes assign in mmio_read_buf and mmio_write_buf.
Signed-off-by: Peng Fan van.free...@gmail.com
CC: Gleb Natapov g...@kernel.org
CC: Paolo Bonzini pbonz
Warning message:
arch/arm/kvm/arm.c:85:17:
error: symbol 'kvm_get_running_vcpus' redeclared with different type
(originally declared at ./arch/arm/include/asm/kvm_host.h :190) -
different address spaces
Signed-off-by: Peng Fan van.free...@gmail.com
CC: Gleb Natapov g...@kernel.org
CC: Paolo
Just began learning this piece of code.
Thanks for correcting me.
On 12/22/2014 07:51 PM, Marc Zyngier wrote:
On 22/12/14 11:23, Peng Fan wrote:
For arm 32 bit architecture, 8 bytes load/store operation in one instruction
will not be generated by compiler.
Ever heard of lrdr/strd
. Falling back to standard DMA.
mmc0: no vqmmc regulator found
mmc0: SDHCI controller on 30b4.usdhc [30b4.usdhc] using DMA
Signed-off-by: Peng Fan van.free...@gmail.com
---
drivers/mmc/host/sdhci.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host
Sparse checking warning:
drivers/staging/nvec/nvec_ps2.c:172:14: warning: duplicate const.
Remove the duplicated const to fix the warning.
Signed-off-by: Peng Fan van.free...@gmail.com
---
drivers/staging/nvec/nvec_ps2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
long long
to fix the overflow issue.
Signed-off-by: Peng Fan van.free...@gmail.com
Cc: David Woodhouse dw...@infradead.org
Cc: Brian Norris computersforpe...@gmail.com
---
include/linux/mtd/blktrans.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/mtd/blktrans.h b
Need to check return value of irq_alloc_generic_chip, because
it may return NULL.
1. Change mxc_gpio_init_gc return type from void to int.
2. Add a new lable out_irqdomain_remove to remove the irq domain
when mxc_gpio_init_gc fail.
Signed-off-by: Peng Fan van.free...@gmail.com
Cc: Linus
Need to check return value of irq_alloc_generic_chip, because
it may return NULL.
1. Change mxs_gpio_init_gc return type from void to int.
2. Add a new lable out_irqdomain_remove to remove the irq domain
when mxc_gpio_init_gc fail.
Signed-off-by: Peng Fan van.free...@gmail.com
Cc: Linus
Use devm_* API to simplify driver code.
Signed-off-by: Peng Fan van.free...@gmail.com
Cc: Linus Walleij linus.wall...@linaro.org
Cc: Alexandre Courbot gnu...@gmail.com
---
drivers/gpio/gpiolib.c | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/gpio
-keys#
we want 'echo 77 keys' to report an error, but not
silence to give us an fake illusion that all is 'ok'.
Signed-off-by: Peng Fan van.free...@gmail.com
Cc: Dmitry Torokhov dmitry.torok...@gmail.com
Cc: Linus Walleij linus.wall...@linaro.org
Cc: Alexander Stein alexander.st...@systec
in
'lynxfb_ops_copyarea' - different lock contexts for basic block
drivers/staging/sm750fb/sm750.c:247:13: warning: context imbalance in
'lynxfb_ops_imageblit' - different lock contexts for basic block
Signed-off-by: Peng Fan van.free...@gmail.com
Cc: Sudip Mukherjee sudipm.mukher...@gmail.com
Cc
Hi,
On Mon, Jun 22, 2015 at 10:04:22AM +0300, Adrian Hunter wrote:
On 22/06/15 06:41, Peng Fan wrote:
We should not call dma_free_coherent if host-adma_table is NULL,
otherwise may trigger panic.
From DMA-API.txt:
void
dma_free_coherent(struct device *dev, size_t size, void
Hi Will,
On Mon, Nov 09, 2015 at 10:10:59AM +, Will Deacon wrote:
>On Mon, Nov 09, 2015 at 02:13:28PM +0800, Peng Fan wrote:
>> The basic flow for iommu_group_for_dev is:
>> iommu_group_get_for_dev
>> |-> iommu_group_get : increase reference count by 1.
>
reference count by 1.
return group (2)
|->return 0;
Since we are adding one device, the flow is (2) and the group reference
count will be increased by 2. So, we need to add iommu_group_put at the
end of arm_smmu_add_device to decrease the count by 1.
Signe
Hi Alex,
On Mon, Nov 09, 2015 at 08:28:09AM -0700, Alex Williamson wrote:
>On Mon, 2015-11-09 at 14:13 +0800, Peng Fan wrote:
>> The basic flow for iommu_group_for_dev is:
>> iommu_group_get_for_dev
>> |-> iommu_group_get : increase reference count by 1.
>
nly increase reference count by 1.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Joerg Roedel <j...@8bytes.org>
Cc: Will Deacon <will.dea...@arm.com>
---
V1 thread: https://lkml.org/lkml/2015/11/3/304
Changes V2:
I did not see the update about device_group when I wor
Hi Will,
On Fri, Nov 06, 2015 at 12:23:39PM +, Will Deacon wrote:
>On Wed, Nov 04, 2015 at 10:48:28AM +0800, Peng Fan wrote:
>> On Tue, Nov 03, 2015 at 01:17:34PM +, Will Deacon wrote:
>> >On Tue, Nov 03, 2015 at 08:59:17PM +0800, Peng Fan wrote:
>> >> iom
iommu_group_alloc will initialize the reference count for group to 1.
iommu_group_add_device also increase the group reference count,
if nothing bad happends. And we need to add iommu_group_put to
decrease the reference count for group.
Signed-off-by: Peng Fan <van.free...@gmail.com&
When 'property' is not NULL, of_parse_phandle will return the
node pointer with refcount incremented. So when of_node_put,
also need to check property.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Lee Jones <lee.jo...@linaro.org>
Cc: Arnd Bergmann <a...@arndb.de>
---
dr
Hi Will,
On Tue, Nov 03, 2015 at 01:17:34PM +, Will Deacon wrote:
>On Tue, Nov 03, 2015 at 08:59:17PM +0800, Peng Fan wrote:
>> iommu_group_alloc will initialize the reference count for group to 1.
>> iommu_group_add_device also increase the group reference count,
>> if
To lpc32xx_adc driver, when platform_get_resource or
platform_get_irq failed, we should use -ENXIO as a
return value, but not -EBUSY.
Signed-off-by: Peng Fan van.free...@gmail.com
Cc: Jonathan Cameron ji...@kernel.org
Cc: Hartmut Knaack knaac...@gmx.de
Cc: Lars-Peter Clausen l...@metafoo.de
Cc
On Tue, Aug 25, 2015 at 11:38:47AM +0300, Grygorii Strashko wrote:
> On 08/24/2015 03:05 PM, Peng Fan wrote:
> >Use devm_* API to simplify driver code.
> >
> >Signed-off-by: Peng Fan <van.free...@gmail.com>
> >Cc: Linus Walleij <linus.wall...@linaro.org>
>
On Wed, Sep 02, 2015 at 10:02:49AM -0700, Brian Norris wrote:
> On Fri, Aug 21, 2015 at 10:57:31PM +0800, Peng Fan wrote:
> > In drivers/mtd/mtd_blkdevs.c:
> > 406 set_capacity(gd, (new->size * tr->blksize) >> 9);
> > The type of new->size is unsigned lon
Need to do error handling path when pinctrl_get fails. Also when
pinctrl_get success, insert 'pctldev->node' to pinctrldev_list.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Linus Walleij <linus.wall...@linaro.org>
---
drivers/pinctrl/core.c | 10 ++
1 file change
Hi Rob,
On Tue, Sep 15, 2015 at 10:56:28AM -0500, Rob Herring wrote:
> On 09/11/2015 08:44 AM, Peng Fan wrote:
> > Check input parameter 'name' for __of_find_property. If name is NULL,
> > of_prop_cmp->strcasecmp may trigger panic.
>
> Arguably that could be a featur
On Tue, Sep 15, 2015 at 09:27:59PM -0500, Rob Herring wrote:
> On 09/15/2015 07:16 PM, Peng Fan wrote:
> > Hi Rob,
> >
> > On Tue, Sep 15, 2015 at 10:56:28AM -0500, Rob Herring wrote:
> >> On 09/11/2015 08:44 AM, Peng Fan wrote:
> >>> Check input parame
e cast u64 to fix the multiplication overflow issue.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: David Woodhouse <dw...@infradead.org>
Cc: Brian Norris <computersforpe...@gmail.com>
---
Changes V2:
use type cast to avoid build break for platforms which does not support 64 bit
Check input parameter 'name' for __of_find_property. If name is NULL,
of_prop_cmp->strcasecmp may trigger panic.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Rob Herring <robh...@kernel.org>
Cc: Frank Rowand <frowand.l...@gmail.com>
Cc: Grant Likely <grant.lik...@
max_ring_order using XENBUS_MAX_RING_GRANT_ORDER,
but not 0.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Cc: Boris Ostrovsky <boris.ostrov...@oracle.com>
Cc: David Vrabel <david.vra...@citrix.com>
Cc: "Roger Pau Monné&
According to definition of structure evtchn_alloc_unbound,
there is an entry "domid_t remote_dom", no "rdom". So
using "remote_dom" in comments instead of "rdom".
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Konrad Rzeszutek Wilk <konrad.w
>Since we are adding one device, the flow is (2) and the group reference
>count will be increased by 2. So, we need to add iommu_group_put at the
>end of arm_smmu_add_device to decrease the count by 1.
>
>Also take the failure path into consideration when fail to add a device.
>
Hi Will,
On Tue, Nov 17, 2015 at 04:17:46PM +, Will Deacon wrote:
>On Tue, Nov 10, 2015 at 09:56:26AM +0800, Peng Fan wrote:
>> The basic flow for add a device:
>> arm_smmu_add_device
>> |->iommu_group_get_for_dev
>> |->iommu_group_get
>
Hi,
Kindly ping.. Any comments on V3?
Thanks,
Peng.
On Mon, May 23, 2016 at 05:47:30PM +0800, Peng Fan wrote:
>The vfio No-IOMMU mode was supported by this
>'commit 03a76b60f8ba2797 ("vfio: Include No-IOMMU mode")',
>but it only support vfio-pci.
>
>Using
Correct comments for __clk_determine_rate.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Michael Turquette <mturque...@baylibre.com>
Cc: Stephen Boyd <sb...@codeaurora.org>
---
drivers/clk/clk.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/d
Hi Linus, Shawn
Kindly ping.. Do you have any comments on this patch?
Thanks,
Peng.
On Wed, May 18, 2016 at 05:31:59PM +0800, Peng Fan wrote:
>To i.MX7D, there are two iomux controllers, iomuxc and iomuxc_lpsr.
>They should not share one pin controller descriptor, otherwise
>the val
Hi,
On Fri, May 20, 2016 at 10:20:32AM +0200, Baptiste Reynal wrote:
>Hi,
>
>On Fri, May 20, 2016 at 9:58 AM, Eric Auger <eric.au...@linaro.org> wrote:
>>
>> Hi,
>> On 05/19/2016 11:01 PM, Alex Williamson wrote:
>> > On Tue, 10 May 2016 15:40:28 +0800
&
Hi Eric,
On Fri, May 20, 2016 at 11:22:13AM +0200, Eric Auger wrote:
>Hi Peng,
>On 05/20/2016 10:36 AM, Peng Fan wrote:
>> Hi,
>>
>> On Fri, May 20, 2016 at 10:20:32AM +0200, Baptiste Reynal wrote:
>>> Hi,
>>>
>>> On Fri, May 20, 2016 a
Hi Eric,
On Mon, May 23, 2016 at 10:59:24AM +0200, Eric Auger wrote:
>Hi Peng,
>On 05/23/2016 10:14 AM, Peng Fan wrote:
>> The vfio No-IOMMU mode was supported by this
>> 'commit 03a76b60f8ba2797 ("vfio: Include No-IOMMU mode")',
>> but it only support vfio-pci.
s making
use of this support are named /dev/vfio/noiommu-$GROUP and
can only make use of the special VFIO_NOIOMMU_IOMMU for the
container. Use of this mode, specifically binding a device
without a native IOMMU group to a VFIO bus driver will taint
the kernel and should therefore not be considere
dered supported.",
Actually, for vfio-platform No-IOMMU mode, the userspace can
not do DMA, because the ioctl API of noiommu container only
supports VFIO_CHECK_EXTENSION and VFIO_IOMMU_MAP_DMA is not
supported.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Eric Auger &
allcoated imx_pinctrl_desc and
switch to dynamically allcate pin controller descriptor for each
iomux controller.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Linus Walleij <linus.wall...@linaro.org>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Philipp Zabel <p.za...@pengutronix
According MMU-500 TRM, section 3.7.1 Auxiliary Control registers,
You can modify ACTLR only when the ACR.CACHE_LOCK bit is 0.
So before clearing ARM_MMU500_ACTLR_CPRE of each context bank,
need clear CACHE_LOCK bit of ACR register first.
Signed-off-by: Peng Fan <van.free...@gmail.com&
Hi Robin,
On Tue, May 03, 2016 at 12:15:52PM +0100, Robin Murphy wrote:
>On 03/05/16 11:15, Peng Fan wrote:
>>According MMU-500 TRM, section 3.7.1 Auxiliary Control registers,
>>You can modify ACTLR only when the ACR.CACHE_LOCK bit is 0.
>>
>>So before clearing AR
> -Original Message-
> From: linux-kernel-ow...@vger.kernel.org [mailto:linux-kernel-
> ow...@vger.kernel.org] On Behalf Of Srinivas Kandagatla
> Sent: Tuesday, May 10, 2016 6:32 PM
> To: Peng Fan <van.free...@gmail.com>
> Cc: shawn...@kernel.org; maxime.rip...@f
Hi Alex,
On Mon, May 09, 2016 at 09:32:38AM -0600, Alex Williamson wrote:
>On Mon, 9 May 2016 18:01:43 +0800
>Peng Fan <van.free...@gmail.com> wrote:
>
>> Use vfio_iommu_group_get and vfio_iommu_group_put, but not
>> iommu_group_get or iommu_group_put.
>
>I
onwards,
need to check the major number of IDR7.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Robin Murphy <robin.mur...@arm.com>
---
V2:
Following Robin's comments, need to check IDR7 before clearing
CACHE_LOCK bit of ACR.
V1:
Patch ba
Use vfio_iommu_group_get and vfio_iommu_group_put, but not
iommu_group_get or iommu_group_put.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Baptiste Reynal <b.rey...@virtualopensystems.com>
Cc: Alex Williamson <alex.william...@redhat.com>
---
drivers/vfio/platform/vfio
Hi Srinivas,
On Mon, May 09, 2016 at 01:28:14PM +0100, Srinivas Kandagatla wrote:
>Thanks for the Ping, I totally missed this thread.
>
>On 20/04/16 18:26, Peng Fan wrote:
>>Before access ocotp nvmem area, the clock should be enabled.
>>Or, `hexdump nvmem` will hang the syst
Hi,
Kindly ping..
Any comments on this patch set?
> -Original Message-
> From: linux-kernel-ow...@vger.kernel.org [mailto:linux-kernel-
> ow...@vger.kernel.org] On Behalf Of Peng Fan
> Sent: Thursday, April 21, 2016 1:26 AM
> To: shawn...@kernel.org; srinivas.kandag
Hi Fabio,
On Tue, Apr 19, 2016 at 07:42:17AM -0300, Fabio Estevam wrote:
>Hi Peng,
>
>On Tue, Apr 19, 2016 at 5:33 AM, Peng Fan <van.free...@gmail.com> wrote:
>
>> @@ -46,11 +48,15 @@ static int imx_ocotp_read(void *context, const void
>> *reg, size_t reg_size,
>&
Add clocks property for ocotp node.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Sascha Hauer <ker...@pengutronix.de>
Cc: Rob Herring <robh...@kernel.org>
---
V2:
none
arch/arm/boot/dts/imx6qdl.dtsi | 1 +
1 file changed, 1
Before access ocotp nvmem area, the clock should be enabled.
Or, `hexdump nvmem` will hang the system. So, use such flow:
"
1. clock_enable_prepare
2. read nvmem ocotp area
3. clock_disable_unprepare
"
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Srinivas Kandagatla &
Add clocks property for ocotp node.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Sascha Hauer <ker...@pengutronix.de>
Cc: Rob Herring <robh...@kernel.org>
---
V2:
none
arch/arm/boot/dts/imx6sl.dtsi | 1 +
1 file changed, 1
Add clocks property for ocotp node.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Sascha Hauer <ker...@pengutronix.de>
Cc: Rob Herring <robh...@kernel.org>
---
arch/arm/boot/dts/imx6qdl.dtsi | 1 +
1 file changed, 1 insertion(+
Add clocks property for ocotp node.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Sascha Hauer <ker...@pengutronix.de>
Cc: Rob Herring <robh...@kernel.org>
---
arch/arm/boot/dts/imx6sl.dtsi | 1 +
1 file changed, 1 insertion(+
Before access ocotp nvmem area, the clock should be enabled.
Or, `hexdump nvmem` will hang the system. So, use such flow:
"
1. clock_enable_prepare
2. read nvmem ocotp area
3. clock_disable_unprepare
"
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Srinivas Kandagatla &
Add of_device_id entry for i.MX6UL to let imx-ocotp driver
support i.MX6UL.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
Cc: Maxime Ripard <maxime.rip...@free-electrons.com>
Cc: Shawn Guo <shawn...@kernel.org>
Add i.MX6UL support in documentation.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
Cc: Maxime Ripard <maxime.rip...@free-electrons.com>
Cc: Rob Herring <robh...@kernel.org>
---
Documentation/devicetree/bindings
Add ocotp node for i.MX6UL
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Sascha Hauer <ker...@pengutronix.de>
Cc: Rob Herring <robh...@kernel.org>
---
arch/arm/boot/dts/imx6ul.dtsi | 6 ++
1 file changed, 6 insertions(+)
di
There is no need to call devm_free_irq when driver detach.
devres_release_all which is called after 'drv->remove' will
release all managed resources.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Reviewed-by: Robin Murphy <robin.mur...@arm.com>
Cc: Will Deacon <will.dea..
unmap_kernel_range.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: <sta...@vger.kernel.org>
---
drivers/base/dma-mapping.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/dma-mapping.c b/dri
There is no need to call devm_free_irq when driver detach.
devres_release_all which is called after 'drv->remove' will
release all managed resources.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Robin Murphy <robin.mur...@arm.com&g
Hi Robin,
On Mon, Jul 11, 2016 at 11:32:55AM +0100, Robin Murphy wrote:
>On 04/07/16 10:38, Peng Fan wrote:
>> Use devm_request_irq to simplify error handling path,
>> when probe smmu device.
>>
>> Also devm_{request|free}_irq when init or destroy domain context.
>
Hi,
Kindly ping.. since more than two weeks from patch sent out.
Thanks,
Peng.
On Thu, Jul 21, 2016 at 04:04:21PM +0800, Peng Fan wrote:
>When dma_common_free_remap, the input parameter 'size' may not
>be page aligned. And, met kernel warning when doing iommu dma
>for usb on i.MX8
Use devm_request_irq to simplify error handling path,
when probe smmu device.
Also devm_{request|free}_irq when init or destroy domain context.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Robin Murphy <robin.mur...@arm.com>
---
Add compatible string for i.MX7D/S
Signed-off-by: Peng Fan <peng@nxp.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
Cc: Maxime Ripard <maxime.rip...@free-electrons.com>
Cc: Rob Herring <robh...@kernel.org&g
Enable ocotp for i.mx7D/S.
Correct the clock entry and compatible string.
Signed-off-by: Peng Fan <peng@nxp.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
Cc: Sascha Hauer <ker...@pengutronix.de>
Cc: Fabio Estevam &l
Add i.MX7D support.
There is 16 banks, each bank 4 words.
Signed-off-by: Peng Fan <peng@nxp.com>
Cc: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
Cc: Maxime Ripard <maxime.rip...@free-electrons.com>
Cc: Shawn Guo <shawn...@kernel.org>
---
drivers/nvmem/i
Correct comments from "of_node" to "fwnode" according
to function prototype.
Signed-off-by: Peng Fan <peng@nxp.com>
Cc: Marc Zyngier <marc.zyng...@arm.com>
Cc: Thomas Gleixner <t...@linutronix.de>
---
kernel/irq/irqdomain.c | 2 +-
1 file changed, 1 i
s,
>- imx_pinctrl_desc->pmxops = _pmx_ops,
>- imx_pinctrl_desc->confops = _pinconf_ops,
>- imx_pinctrl_desc->owner = THIS_MODULE,
>+ imx_pinctrl_desc->pctlops = _pctrl_ops;
>+ imx_pinctrl_desc->pmxops = _pmx_ops;
>+ imx_pinctrl_desc->con
>From code "SMR mask 0x%x out of range for SMMU",
so, we need to use mask, not sid.
Signed-off-by: Peng Fan <peng@nxp.com>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Robin Murphy <robin.mur...@arm.com>
---
drivers/iommu/arm-smmu.c | 2 +-
1 file changed, 1 in
> -Original Message-
> From: Srinivas Kandagatla [mailto:srinivas.kandaga...@linaro.org]
> Sent: Friday, March 03, 2017 6:12 PM
> To: Peng Fan <peng@nxp.com>; shawn...@kernel.org;
> maxime.rip...@free-electrons.com
> Cc: devicet...@vger.kernel.org; linux-kerne
> > + chip->enable_gpio = devm_gpiod_get(>dev, "enable",
> GPIOD_OUT_LOW);
> > + if (IS_ERR(chip->enable_gpio)) {
> > + dev_dbg(>dev, "No enable-gpios property\n");
> > + chip->enable_gpio = NULL;
>
> Also, the error handling here is not correct as it will
There is an OE(low active) input pin for 74hc595 and 74lv595.
To some boards, the OE pin is controlled by GPIO, so add an
optional property "enable-gpios".
Signed-off-by: Peng Fan <peng@nxp.com>
Cc: Rob Herring <r...@kernel.org>
Cc: Linus Walleij <linus.wall...@linar
To 74hc595 and 74lv595, there is an OE(low active) input pin.
To some boards, this pin is controller by GPIO, so handling
this pin in driver. When driver probe, use GPIOD_OUT_LOW flag
when requesting the gpio, so OE is set to low when probe.
Signed-off-by: Peng Fan <peng@nxp.com>
Cc:
To boot Linux in Non-secure mode with l2x0, the l2x0 controller
is enabled in secure mode and ways locked to make it seems L2 cache
disabled during linux boot process. So during l2x0 initialization,
need to unlock the ways to make l2x0 could cache data/inst.
Signed-off-by: Peng Fan <p
> -Original Message-
> From: Peng Fan
> Sent: Sunday, November 26, 2017 9:14 PM
> To: h...@lst.de; m.szyprow...@samsung.com; robin.mur...@arm.com;
> gre...@linuxfoundation.org; robh...@kernel.org; frowand.l...@gmail.com
> Cc: io...@lists.linux-foundation.org; linux-kern
Hi Russell,
> Subject: Re: [PATCH] arm: l2c: unlock ways when in non-secure mode
>
> On Sun, Nov 26, 2017 at 08:25:30PM +0800, Peng Fan wrote:
> > To boot Linux in Non-secure mode with l2x0, the l2x0 controller is
> > enabled in secure mode and ways locked to make it seems
Invoke of_reserved_mem_device_init at dma_configure, then
there is no need to call of_reserved_mem_device_init in device
specific probe function.
Signed-off-by: Peng Fan <peng@nxp.com>
---
drivers/base/dma-mapping.c | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff
reserved memory for a device which needs iommu.
Signed-off-by: Peng Fan <peng@nxp.com>
---
drivers/of/of_reserved_mem.c | 9 ++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 22b75c82e377..61523819b50
Hi Marek,
On Mon, Nov 27, 2017 at 09:31:00AM +0100, Marek Szyprowski wrote:
>Hi
>
>On 2017-11-26 14:13, Peng Fan wrote:
>> Invoke of_reserved_mem_device_init at dma_configure, then
>> there is no need to call of_reserved_mem_device_init in device
>> specific probe
Hi Marek,
On Mon, Nov 27, 2017 at 09:44:20AM +0100, Marek Szyprowski wrote:
>Hi Peng,
>
>On 2017-11-27 09:37, Peng Fan wrote:
>> Hi Marek,
>>
>> On Mon, Nov 27, 2017 at 09:31:00AM +0100, Marek Szyprowski wrote:
>> > Hi
>> >
>> &
Hi Russell,
> -Original Message-
> From: Russell King - ARM Linux [mailto:li...@armlinux.org.uk]
> Sent: Monday, November 27, 2017 5:20 PM
> To: Peng Fan <peng@nxp.com>
> Cc: linux-arm-ker...@lists.infradead.org; linux-kernel@vger.kernel.org;
> van.free...
Hi Russell,
> -Original Message-
> From: Russell King - ARM Linux [mailto:li...@armlinux.org.uk]
> Sent: Monday, November 27, 2017 6:19 PM
> To: Peng Fan <peng@nxp.com>
> Cc: linux-arm-ker...@lists.infradead.org; linux-kernel@vger.kernel.org;
> van.free...
Use outer_disable/resume for suspend/resume.
With the two APIs used, code could be simplified and easy to extend
to introduce l2c_write_sec for i.MX platforms when moving Linux Kernel
runs in non-secure world.
Signed-off-by: Peng Fan <peng@nxp.com>
Cc: Shawn Guo <shawn...@kerne
Hi Russell,
> > > > > >
> > > > > > On Sun, Nov 26, 2017 at 08:25:30PM +0800, Peng Fan wrote:
> > > > > > > To boot Linux in Non-secure mode with l2x0, the l2x0
> > > > > > > controller is enabled in secure mode and
> -Original Message-
> From: Rafael J. Wysocki [mailto:r...@rjwysocki.net]
> Sent: 2018年5月18日 15:55
> To: Peng Fan <peng@nxp.com>
> Cc: Rafael J. Wysocki <raf...@kernel.org>; Ulf Hansson
> <ulf.hans...@linaro.org>; Rafael J. Wysocki <rafae
> -Original Message-
> From: rjwyso...@gmail.com [mailto:rjwyso...@gmail.com] On Behalf Of Rafael
> J. Wysocki
> Sent: 2018年5月17日 16:01
> To: Peng Fan <peng@nxp.com>
> Cc: Rafael J. Wysocki <raf...@kernel.org>; Ulf Hansson
> <ulf.hans...@linaro.or
ing. So let's detach the power domain
to shutdown PM domains after driver shutdown.
Signed-off-by: Peng Fan <peng@nxp.com>
---
I do not find a better place to shutdown power domain when reboot Linux,
so add back the line that commit 2d30bb0b3889 removes, because it is
a false alarm warn
Hi Uffe,
> -Original Message-
> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> Sent: 2018年5月16日 17:53
> To: Peng Fan <peng@nxp.com>
> Cc: Rafael J. Wysocki <rafael.j.wyso...@intel.com>; Fabio Estevam
> <fabio.este...@nxp.com>; Greg Kroah-H
> -Original Message-
> From: rjwyso...@gmail.com [mailto:rjwyso...@gmail.com] On Behalf Of Rafael
> J. Wysocki
> Sent: 2018年5月17日 5:35
> To: Ulf Hansson <ulf.hans...@linaro.org>
> Cc: Peng Fan <peng@nxp.com>; Rafael J. Wysocki
> <rafael.j.wyso...@i
> -Original Message-
> From: Rafael J. Wysocki [mailto:r...@rjwysocki.net]
> Sent: 2018年5月28日 16:32
> To: Peng Fan
> Cc: Rafael J. Wysocki ; Ulf Hansson
> ; Rafael J. Wysocki ;
> Fabio Estevam ; Greg Kroah-Hartman
> ; Linux Kernel Mailing List
> ; Linux PM
Hi, Rafael & Uffe
> -Original Message-
> From: Peng Fan
> Sent: 2018年5月18日 16:53
> To: Rafael J. Wysocki <r...@rjwysocki.net>
> Cc: Rafael J. Wysocki <raf...@kernel.org>; Ulf Hansson
> <ulf.hans...@linaro.org>; Rafael J. Wysocki <rafael.j.wyso
mode when any cpu exit
state[2].
In this patch,
When CPU exits state[2], it configures CCM to RUN mode.
When all CPUs enters state[2], the last CPU needs to check
whether it's ok to configure CCM to WAIT mode or not.
Signed-off-by: Peng Fan <peng@nxp.com>
---
V1:
This is to upstream
WAIT_CLOCKED is for RUN mode, there is no need to unmask/mask
IRQ32 in GPC.
Signed-off-by: Peng Fan <peng@nxp.com>
---
V1:
This is to upstream patch:
http://git.freescale.com/git/cgit.cgi/imx/linux-imx.git/commit/?h=imx_4.9.11_1.0.0_ga=0d980646ee068b92db71fd5e4e4efcbc33749cbd
ar
Some PL310 registers could only be wrote in secure world, so
introduce imx_l2c310_write_sec to support Linux running in
non-secure world configure PL310.
Signed-off-by: Peng Fan <peng@nxp.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: Sascha Hauer <ker...@pengutronix.de>
> -Original Message-
> From: Philippe Ombredanne [mailto:pombreda...@nexb.com]
> Sent: Saturday, December 30, 2017 10:17 PM
> To: Peng Fan <peng@nxp.com>
> Cc: Shawn Guo <shawn...@kernel.org>; moderated list:ARM/FREESCALE IMX
> / MXC A
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