Hi Tony,
On Tuesday 01 July 2014 01:29 PM, Tony Lindgren wrote:
> * Jason Cooper [140630 12:30]:
>>
>> Whole series applied to irqchip/crossbar, I'll give it a day or two in
>> -next, then I'll merge it into irqchip/core.
>>
>> Tony: Right now, it's immutable unless you tell me I applied somethin
Hi Tony,
On Thursday 26 June 2014 01:14 PM, Tony Lindgren wrote:
> * Sricharan R [140626 00:29]:
>> From: R Sricharan
>>
>> There is a IRQ crossbar device in the soc, which
>> maps the irq requests from the peripherals to the
>> mpu interrupt controller's
27;s input line. The crossbar device is used to map
a peripheral input to a free mpu's interrupt controller line.
Here, adding a new crossbar device node and replacing all the peripheral
interrupt numbers with its fixed crossbar input lines.
Signed-off-by: Sricharan R
Signed-off-by: Nis
From: R Sricharan
There is a IRQ crossbar device in the soc, which maps the
irq requests from the peripherals to the mpu interrupt
controller's inputs. The gic provides the support for such
IPs in the form of routable-irqs. So adding the property
here to gic node.
Signed-off-by: Sricha
This series introduces DT support for crossbar device and
changes dra7 peripherals to use crossbar number instead of irq.
This depends on below driver fixes and cleanup series.
http://marc.info/?l=linux-omap&m=140376708127157&w=2
[V2] Rebased on 3.15 mainline.
[V3] Added ti,irqs-skip property and
-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers/irqchip/irq-crossbar.c | 16
1 file changed, 16 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 20105bc..51d4b87 100644
--- a/drivers
quirky hardware with direct hardwiring
of GIC
Sricharan R (2):
irqchip: crossbar: Set cb pointer to null in case of error
irqchip: crossbar: Add kerneldoc for crossbar_domain_unmap callback
.../devicetree/bindings/arm/omap/crossbar.txt | 36 +
drivers/irqchip
From: Nishanth Menon
When, in the system due to varied reasons, interrupts might be unusable
due to hardware behavior, but register maps do exist, then those interrupts
should be skipped while mapping irq to crossbars.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh
From: Nishanth Menon
IS_ERR_VALUE makes sense only *if* there could be valid values in
negative error range. But in the cases that we do use it, there is no
such case. Just remove the same.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers
From: Nishanth Menon
Today '0' is actually reserved, but may not be the same in the future.
So, use a flag to mark the GIC interrupts that are reserved.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers/irqchip/irq-crossbar.c |
use it to
validate requests.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
.../devicetree/bindings/arm/omap/crossbar.txt |2 ++
drivers/irqchip/irq-crossbar.c | 21 ++--
2 files changed, 21 insertions(+), 2
Adding kerneldoc for unmap callback function.
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers/irqchip/irq-crossbar.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index a8c6156..518d712
From: Nishanth Menon
crossbar_of_init always returns -ENOMEM in case of errors.
There can be other causes of failure like invalid data from
DT. So return a appropriate error value for that case.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers
From: Nishanth Menon
Using err1,2,3,4 etc makes it hard to ensure a new exit path in the
middle will not result in spurious changes, so rename the error paths
as per the function it does.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers
, GFP_KERNEL);
WARNING: Prefer kcalloc over kzalloc with multiply
+ cb->register_offsets = kzalloc(max * sizeof(int), GFP_KERNEL);
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers/irqchip/irq-crossbar.c |7 ---
1 file changed, 4
If crossbar_of_init returns with a error, then set the cb pointer
to null.
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers/irqchip/irq-crossbar.c |2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index
ned-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers/irqchip/irq-crossbar.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 4be30c0..a39cb31 100644
--- a/driv
From: Nishanth Menon
This is a basic check to ensure that crossbar register needs to be
written. This ensures that we have a common check which is used in
both map and unmap logic.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers/irqchip/irq
ation/programming of crossbar should be avoided.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
.../devicetree/bindings/arm/omap/crossbar.txt | 12 ++--
drivers/irqchip/irq-crossbar.c | 20 ++--
2
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
.../devicetree/bindings/arm/omap/crossbar.txt | 17 +
1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/omap/crossbar.txt
b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
tch warning:
WARNING: Unnecessary space before function pointer arguments
#37: FILE: drivers/irqchip/irq-crossbar.c:37:
+ void (*write) (int, int);
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
.../devicetree/bindings/arm/omap/crossbar.txt |3 +++
(drivers/irqchip/irq-crossbar.c:27): Scanning doc for struct
Warning(drivers/irqchip/irq-crossbar.c:39): No description found for parameter
'write'
2 warnings
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Acked-by: Santosh Shilimkar
---
drivers/irqchip/irq-crossbar.c |4 ++
Hi Jason,
On Saturday 21 June 2014 08:27 AM, Jason Cooper wrote:
> On Mon, Jun 16, 2014 at 04:53:16PM +0530, Sricharan R wrote:
>> From: Nishanth Menon
>>
>> On certain platforms such as DRA7, SPIs 0, 1, 2, 3, 5, 6, 10, 131,
>> 132, 133 are direct wired to hardwar
Ok. I will look for your comments on the rest of the patches and
resend with capitalization fix said above.
> On Mon, Jun 16, 2014 at 04:53:03PM +0530, Sricharan R wrote:
>> From: Nishanth Menon
>>
>> When, in the system due to varied reasons, interrupts might be unusable
>
On Monday 16 June 2014 07:34 PM, Santosh Shilimkar wrote:
> Sricharan,
>
> On Monday 16 June 2014 07:23 AM, Sricharan R wrote:
>> This series does some cleanups, fixes for handling two interrupts
>> getting mapped twice to same crossbar and provides support for
>>
From: R Sricharan
There is a IRQ crossbar device in the soc, which maps the
irq requests from the peripherals to the mpu interrupt
controller's inputs. The gic provides the support for such
IPs in the form of routable-irqs. So adding the property
here to gic node.
Signed-off-by: Sricha
27;s input line. The crossbar device is used to map
a peripheral input to a free mpu's interrupt controller line.
Here, adding a new crossbar device node and replacing all the peripheral
interrupt numbers with its fixed crossbar input lines.
Signed-off-by: Sricharan R
Signed-off-by: Nis
This series introduces DT support for crossbar device and
changes dra7 peripherals to use crossbar number instead of irq.
This depends on below driver fixes and cleanup series.
https://lkml.org/lkml/2014/6/16/218
[V2] Rebased on 3.15 mainline.
[V3] Added ti,irqs-skip property and ti,irqs-safe-ma
From: Nishanth Menon
Today '0' is actually reserved, but may not be the same in the future.
So, use a flag to mark the GIC interrupts that are reserved.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c |5 +++--
1 file changed, 3
tch warning:
WARNING: Unnecessary space before function pointer arguments
#37: FILE: drivers/irqchip/irq-crossbar.c:37:
+ void (*write) (int, int);
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
[V3] introduced ti,irqs-safe-map which defines a safe value
to initialize the crossb
From: Nishanth Menon
When, in the system due to varied reasons, interrupts might be unusable
due to hardware behavior, but register maps do exist, then those interrupts
should be skipped while mapping irq to crossbars.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
[V3
-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c | 16
1 file changed, 16 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 20105bc..51d4b87 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b
ned-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
[V3] Added more description to commit log.
drivers/irqchip/irq-crossbar.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index d1f67f6..9528cf2 100
From: Nishanth Menon
IS_ERR_VALUE makes sense only *if* there could be valid values in
negative error range. But in the cases that we do use it, there is no
such case. Just remove the same.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c |6
From: Nishanth Menon
Using err1,2,3,4 etc makes it hard to ensure a new exit path in the
middle will not result in spurious changes, so rename the error paths
as per the function it does.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c | 23
(drivers/irqchip/irq-crossbar.c:27): Scanning doc for struct
Warning(drivers/irqchip/irq-crossbar.c:39): No description found for parameter
'write'
2 warnings
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
[V3] Reworded the commit log
drivers/irqchip/irq-crossbar.c |4 ++
, GFP_KERNEL);
WARNING: Prefer kcalloc over kzalloc with multiply
+ cb->register_offsets = kzalloc(max * sizeof(int), GFP_KERNEL);
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
[V3] Added checkpatch fixes as well to this.
drivers/irqchip/irq-crossbar.c |7 ---
1
Adding kerneldoc for unmap callback function.
Signed-off-by: Sricharan R
---
[V3] Reworded the kerneldoc
drivers/irqchip/irq-crossbar.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 9b4c0f1..df16ef8
From: Nishanth Menon
crossbar_of_init always returns -ENOMEM in case of errors.
There can be other causes of failure like invalid data from
DT. So return a appropriate error value for that case.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
[V3] Changed commit log
drivers
If crossbar_of_init returns with a error, then set the cb pointer
to null.
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c |2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 5bd7f3d..9b4c0f1 100644
--- a
From: Nishanth Menon
This is a basic check to ensure that crossbar register needs to be
written. This ensures that we have a common check which is used in
both map and unmap logic.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c | 14
use it to
validate requests.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
.../devicetree/bindings/arm/omap/crossbar.txt |2 ++
drivers/irqchip/irq-crossbar.c | 21 ++--
2 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/Doc
ation/programming of crossbar should be avoided.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
---
.../devicetree/bindings/arm/omap/crossbar.txt | 12 ++--
drivers/irqchip/irq-crossbar.c | 20 ++--
2 files changed, 28 insertions(
Signed-off-by: Sricharan R
---
.../devicetree/bindings/arm/omap/crossbar.txt | 17 +
1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/omap/crossbar.txt
b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
index 41aef44..8210ea4 100644
o identify
valid crossbar mapping
irqchip: crossbar: introduce centralized check for crossbar write
documentation: dt: omap: crossbar: add description for interrupt
consumer
irqchip: crossbar: allow for quirky hardware with direct hardwiring
of GIC
Sricharan R (2):
irqchip: crossb
On Friday 13 June 2014 12:26 PM, Sricharan R wrote:
> Hi Jason,
>
> On Thursday 12 June 2014 07:35 PM, Jason Cooper wrote:
>> On Thu, Jun 12, 2014 at 06:57:15AM -0700, Tony Lindgren wrote:
>>> * Jason Cooper [140612 05:52]:
>>>> On Thu, Jun 12, 2014 at
Hi Jason,
On Thursday 12 June 2014 07:24 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:24PM +0530, Sricharan R wrote:
>> From: Nishanth Menon
>>
>> Currently we attempt to map any crossbar value to an IRQ, however,
>> this is not correct from hardware
Hi Jason,
On Thursday 12 June 2014 07:35 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 06:57:15AM -0700, Tony Lindgren wrote:
>> * Jason Cooper [140612 05:52]:
>>> On Thu, Jun 12, 2014 at 05:23:11PM +0530, Sricharan R wrote:
>>>> From: Nishanth Menon
>&g
Hi Jason,
On Thursday 12 June 2014 07:37 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 06:49:17PM +0530, Sricharan R wrote:
>> Hi Jason,
>>
>> On Thursday 12 June 2014 06:21 PM, Jason Cooper wrote:
>>> On Thu, Jun 12, 2014 at 05:23:11PM +0530, Sricharan R wr
On Thursday 12 June 2014 07:27 PM, Tony Lindgren wrote:
> * Jason Cooper [140612 05:52]:
>> On Thu, Jun 12, 2014 at 05:23:11PM +0530, Sricharan R wrote:
>>> From: Nishanth Menon
>>>
>>> When, in the system due to varied reasons, interrupts might be unusab
Hi Jason,
On Thursday 12 June 2014 09:35 PM, Joe Perches wrote:
> On Thu, 2014-06-12 at 11:32 -0400, Jason Cooper wrote:
>
> Hi Jason.
>
>>> But bugfix backports haven't been much of an issue in
>>> other subsystems with fairly active whitespace/style
>>> changes.
>>
>> Most of the mvebu fixes w
Hi Jason,
On Thursday 12 June 2014 06:26 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:13PM +0530, Sricharan R wrote:
>> From: Nishanth Menon
>>
>> Reverse the search algorithm to ensure that address mapping and IRQ
>> allocation logics are proper. This can
Hi Jason,
On Thursday 12 June 2014 07:19 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:23PM +0530, Sricharan R wrote:
>> The crossbar_domain_map/unmap callbacks need not be called same number
>> of times for a particular irq. But still use counting is not needed
>>
Hi Jason,
On Thursday 12 June 2014 06:44 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:17PM +0530, Sricharan R wrote:
>> From: Nishanth Menon
>>
>> kernel doc style is wrong in code. fix it to squelch
>> kerneldoc warnings:
>
> I would re-word the abo
Hi Jason,
On Thursday 12 June 2014 06:50 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:19PM +0530, Sricharan R wrote:
>> From: Nishanth Menon
>>
>> When the provided unused skip list entry is greater than max irqs
>> possible, we go to err3, but we fa
Hi Jason,
On Thursday 12 June 2014 06:40 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:16PM +0530, Sricharan R wrote:
>> From: Nishanth Menon
>>
>> remove un-necessary space in function pointer.
>>
>> Fixes checkpatch warning:
>> WARNING: Un
Hi Jason,
On Thursday 12 June 2014 06:46 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:18PM +0530, Sricharan R wrote:
>> From: Rajendra Nayak
>>
>> On DRA7 compatible IRQ crossbar, IRQ 10 default mapped to L3_APP_IRQ,
>> IRQ133 is default mapped to NMI pin
Hi Jason,
On Thursday 12 June 2014 06:21 PM, Jason Cooper wrote:
> On Thu, Jun 12, 2014 at 05:23:11PM +0530, Sricharan R wrote:
>> From: Nishanth Menon
>>
>> When, in the system due to varied reasons, interrupts might be unusable
>> due to hardware behavior, but r
From: Nishanth Menon
When, in the system due to varied reasons, interrupts might be unusable
due to hardware behavior, but register maps do exist, then those interrupts
should be skipped while mapping irq to crossbars.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Signed-off-by
entralized check for crossbar write
Documentation: dt: OMAP: crossbar: add description for interrupt
consumer
irqchip: crossbar allow for quirky hardware with direct hardwiring of
GIC
Rajendra Nayak (1):
irqchip: crossbar: DRA7: Fix unused crossbar list
Sricharan R (2):
irqchip: cro
This series introduces DT support for crossbar device and
changes dra7 peripherals to use crossbar number instead of irq.
This depends on below driver fixes and cleanup series.
https://lkml.org/lkml/2014/6/12/232
[V2] Rebased on 3.15 mainline.
R Sricharan (2):
ARM: dts: DRA7: Add routable-irq
From: Nishanth Menon
IS_ERR_VALUE makes sense only *if* there could be valid values in
negative error range. But in the cases that we do use it, there is no
such case. Just remove the same.
Signed-off-by: Nishanth Menon
---
drivers/irqchip/irq-crossbar.c |6 +++---
1 file changed, 3 insert
: Sricharan R
Signed-off-by: Tony Lindgren
---
drivers/irqchip/irq-crossbar.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 287d3ce..de021638 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers
From: R Sricharan
There is a IRQ crossbar device in the soc, which maps the
irq requests from the peripherals to the mpu interrupt
controller's inputs. The gic provides the support for such
IPs in the form of routable-irqs. So adding the property
here to gic node.
Signed-off-by: Sricha
27;s input line. The crossbar device is used to map
a peripheral input to a free mpu's interrupt controller line.
Here, adding a new crossbar device node and replacing all the peripheral
interrupt numbers with its fixed crossbar input lines.
Signed-off-by: Sricharan R
Signed-off-by: Nis
ue must be written to
ensure that the crossbar mapping matches with interrupt controller
usage.
So provide a safe value in the compatible data to map if
'0' is not safe for the platform and use it during init and unmap
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
From: Nishanth Menon
remove un-necessary space in function pointer.
Fixes checkpatch warning:
WARNING: Unnecessary space before function pointer arguments
#37: FILE: drivers/irqchip/irq-crossbar.c:37:
+ void (*write) (int, int);
WARNING: Missing a blank line after declarations
+ in
used to track the update.
Reported-by: Nishanth Menon
Reported-by: Sricharan R
Reported-by: Suman Anna
Signed-off-by: Rajendra Nayak
---
drivers/irqchip/irq-crossbar.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip
From: Nishanth Menon
There is absolutely no need for crossbar driver to expose functions and
variables into global namespace. So make them all static
Fixes sparse warnings:
drivers/irqchip/irq-crossbar.c:129:29: warning: symbol
'routable_irq_domain_ops' was not declared. Should it be static?
dr
From: Nishanth Menon
kernel doc style is wrong in code. fix it to squelch
kerneldoc warnings:
Warning(drivers/irqchip/irq-crossbar.c:27): missing initial short description
on line:
* struct crossbar_device: crossbar device description
Info(drivers/irqchip/irq-crossbar.c:27): Scanning doc for st
If crossbar_of_init returns with a error, then set the cb pointer
to null.
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c |2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index cf0d79f..5f3e75a 100644
--- a
kerneldoc for unmap callback clarity.
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 5f3e75a..2a73a66 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b
From: Nishanth Menon
When the provided unused skip list entry is greater than max irqs
possible, we go to err3, but we fail to free register_offsets,
should have returned to err4 instead which ensures that allocated
register_offsets are freed as well.
Signed-off-by: Nishanth Menon
---
drivers/
From: Nishanth Menon
crossbar_of_init always returns -ENOMEM in case of errors, return proper
error results in case of failures.
Signed-off-by: Nishanth Menon
---
drivers/irqchip/irq-crossbar.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/irqch
From: Nishanth Menon
Currently we attempt to map any crossbar value to an IRQ, however,
this is not correct from hardware perspective. There is a max crossbar
event number upto which hardware supports. So describe the same in
device tree using 'ti,max-crossbar-sources' property and use it to
vali
From: Nishanth Menon
This is a basic check to ensure that crossbar register needs to be
written. This ensures that we have a common check which is used in
both map and unmap logic.
Signed-off-by: Nishanth Menon
---
drivers/irqchip/irq-crossbar.c | 14 --
1 file changed, 12 insert
From: Nishanth Menon
Using err1,2,3,4 etc makes it hard to ensure a new exit path in the
middle will not result in spurious changes, so rename the error paths
as per the function it does.
Signed-off-by: Nishanth Menon
---
drivers/irqchip/irq-crossbar.c | 22 +++---
1 file cha
From: Nishanth Menon
The current crossbar description does not include the description
required for the consumer of the crossbar, a.k.a devices whoes events
pass through the crossbar into the GIC interrupt controller.
So, provide documentation for the same.
Signed-off-by: Nishanth Menon
---
.
-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Signed-off-by: Tony Lindgren
---
drivers/irqchip/irq-crossbar.c | 16
1 file changed, 16 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 20105bc..51d4b87 100644
--- a/drivers
From: Nishanth Menon
On certain platforms such as DRA7, SPIs 0, 1, 2, 3, 5, 6, 10, 131,
132, 133 are direct wired to hardware blocks bypassing crossbar.
This quirky implementation is *NOT* supposed to be the expectation
of crossbar hardware usage. However, these are already marked in our
descript
From: Nishanth Menon
Today '0' is actually reserved, but may not be the same in the future.
So, use a flag to mark the GIC interrupts that are reserved.
Signed-off-by: Nishanth Menon
Signed-off-by: Sricharan R
Signed-off-by: Tony Lindgren
---
drivers/irqchip/irq-crossbar.c |
This series removes the DMA interrupt registration if DT provides interrupts,
so we have no need for hwmod provided interrupt number.
This is a pre-req for crossbar migration as DMA is the last driver to use
interrupt definition from hwmod.
[V2] Rebased on 3.15 mainline
Nishanth Menon (2):
ARM
From: Nishanth Menon
DMA interrupts are now available in of, and the definitions are
duplicates in hwmod. This prevents us from dynamically allocating
interrupt resources for dma from devicetree.
Signed-off-by: Nishanth Menon
---
arch/arm/mach-omap2/omap_hwmod_7xx_data.c |9 -
1 fi
From: Nishanth Menon
we have currently 2 DMA drivers that try to co-exist.
drivers/dma/omap-dma.c which registers it's own IRQ and is device tree
aware and uses arch/arm/plat-omap/dma.c instance created by
arch/arm/mach-omap2/dma.c to maintain channel usage (omap_request_dma).
Currently both try
Hi,
On Tuesday 03 June 2014 02:40 PM, Sricharan R wrote:
> This series introduces DT support for crossbar device and
> changes dra7 peripherals to use crossbar number instead of irq.
>
> This depends on below driver fixes and DMA cleanup series.
Sorry, i meant to say crossbar driv
From: R Sricharan
There is a IRQ crossbar device in the soc, which maps the
irq requests from the peripherals to the mpu interrupt
controller's inputs. The gic provides the support for such
IPs in the form of routable-irqs. So adding the property
here to gic node.
Signed-off-by: Sricha
This series introduces DT support for crossbar device and
changes dra7 peripherals to use crossbar number instead of irq.
This depends on below driver fixes and DMA cleanup series.
http://www.spinics.net/lists/arm-kernel/msg336594.html
R Sricharan (2):
ARM: dts: DRA7: Add routable-irqs
27;s input line. The crossbar device is used to map
a peripheral input to a free mpu's interrupt controller line.
Here, adding a new crossbar device node and replacing all the peripheral
interrupt numbers with its fixed crossbar input lines.
Signed-off-by: Sricharan R
Signed-off-by: Nis
From: Nishanth Menon
DMA interrupts are now available in of, and the definitions are
duplicates in hwmod. This prevents us from dynamically allocating
interrupt resources for dma from devicetree.
Signed-off-by: Nishanth Menon
---
arch/arm/mach-omap2/omap_hwmod_7xx_data.c |9 -
1 fi
From: Nishanth Menon
we have currently 2 DMA drivers that try to co-exist.
drivers/dma/omap-dma.c which registers it's own IRQ and is device tree
aware and uses arch/arm/plat-omap/dma.c instance created by
arch/arm/mach-omap2/dma.c to maintain channel usage (omap_request_dma).
Currently both try
This series removes the DMA interrupt registration if DT provides interrupts,
so we have no need for hwmod provided interrupt number.
This is a pre-req for crossbar migration as DMA is the last driver to use
interrupt definition from hwmod.
Nishanth Menon (2):
ARM: OMAP2+: DMA: remove requireme
If crossbar_of_init returns with a error, then set the cb pointer
to null.
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c |2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index cf0d79f..5f3e75a 100644
--- a
kerneldoc for unmap callback clarity.
Signed-off-by: Sricharan R
---
drivers/irqchip/irq-crossbar.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 5f3e75a..2a73a66 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b
From: Nishanth Menon
On certain platforms such as DRA7, SPIs 0, 1, 2, 3, 5, 6, 10, 131,
132, 133 are direct wired to hardware blocks bypassing crossbar.
This quirky implementation is *NOT* supposed to be the expectation
of crossbar hardware usage. However, these are already marked in our
descript
From: Nishanth Menon
The current crossbar description does not include the description
required for the consumer of the crossbar, a.k.a devices whoes events
pass through the crossbar into the GIC interrupt controller.
So, provide documentation for the same.
Signed-off-by: Nishanth Menon
---
.
From: Nishanth Menon
This is a basic check to ensure that crossbar register needs to be
written. This ensures that we have a common check which is used in
both map and unmap logic.
Signed-off-by: Nishanth Menon
---
drivers/irqchip/irq-crossbar.c | 14 --
1 file changed, 12 insert
From: Nishanth Menon
Currently we attempt to map any crossbar value to an IRQ, however,
this is not correct from hardware perspective. There is a max crossbar
event number upto which hardware supports. So describe the same in
device tree using 'ti,max-crossbar-sources' property and use it to
vali
From: Nishanth Menon
When the provided unused skip list entry is greater than max irqs
possible, we go to err3, but we fail to free register_offsets,
should have returned to err4 instead which ensures that allocated
register_offsets are freed as well.
Signed-off-by: Nishanth Menon
---
drivers/
From: Nishanth Menon
kernel doc style is wrong in code. fix it to squelch
kerneldoc warnings:
Warning(drivers/irqchip/irq-crossbar.c:27): missing initial short description
on line:
* struct crossbar_device: crossbar device description
Info(drivers/irqchip/irq-crossbar.c:27): Scanning doc for st
used to track the update.
Reported-by: Nishanth Menon
Reported-by: Sricharan R
Reported-by: Suman Anna
Signed-off-by: Rajendra Nayak
---
drivers/irqchip/irq-crossbar.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip
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