On Wed, 18 Apr 2018 11:26:26 +0200
Luca Ellero wrote:
> Since msleep is based on jiffies, this 3 ms sleep becomes actually 20 ms.
> Worst of all, since this sleep is used in a loop when writing, a single page
> write (256 to 1024 bytes) causes 17 ms extra time.
> When writing large files (for exa
Hi Sekhar,
On Fri, 30 Mar 2018 20:00:51 +0530
Sekhar Nori wrote:
> NAND itself is an asynchronous interface, it does not have any
> clock input. DaVinci NAND driver acquires clock for AEMIF
> (asynchronous external memory interface) which is an on-chip
> IP to which NAND is connected.
>
> The s
Hi Geert,
Sorry for the late reply.
On Tue, 10 Apr 2018 15:26:20 +0200
Geert Uytterhoeven wrote:
> Hi Marek,
>
> On Mon, Apr 9, 2018 at 11:59 PM, Marek Vasut wrote:
> > On 04/09/2018 02:25 PM, Geert Uytterhoeven wrote:
> >> Currently add_mtd_device() failures are plainly ignored, which may
| 4 ++--
> drivers/gpu/drm/armada/armada_drv.c| 6 +++---
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 4 ++--
For atmel-hlcdc:
Acked-by: Boris Brezillon
ding on the selected output mode. For
> devices that do not have the "conflicting output formats" issue
> (SAMA5D2, SAMA5D4), this is completely irrelevant.
>
> Signed-off-by: Peter Rosin
Acked-by: Boris Brezillon
> ---
> .../devicetree/bindings/display/atmel/
d output mode. For
> devices that do not have the "conflicting output formats" issue
> (SAMA5D2, SAMA5D4), this is completely irrelevant.
>
> Signed-off-by: Peter Rosin
Acked-by: Boris Brezillon
> ---
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 70
> +
Hi,
On Fri, 30 Mar 2018 09:47:41 +0200
Boris Brezillon wrote:
> This patch series is a proposal for a new I3C subsystem.
This v4 has been sent almost a month ago and I didn't get any feedback
so far apart from Rob's R-b. Greg, is there any chance we can get these
patches merged in
On Mon, 23 Apr 2018 11:40:09 +0200
Quentin Schulz wrote:
> Hi Boris,
>
> On Fri, Apr 20, 2018 at 07:19:24PM +0200, Boris Brezillon wrote:
> > On Fri, 20 Apr 2018 10:52:41 +0200
> > Quentin Schulz wrote:
> >
> > > There's already ECC on NAND
On Thu, 19 Apr 2018 16:06:00 +0200
Wolfram Sang wrote:
> We should get drvdata from struct device directly. Going via
> platform_device is an unneeded step back and forth.
>
> Signed-off-by: Wolfram Sang
Applied to nand/next.
Thanks,
Boris
> ---
>
> Build tested only. buildbot is happy. Pl
On Mon, 16 Apr 2018 10:33:54 +0800
Ryder Lee wrote:
> The usage of of_device_get_match_data() reduce the code size a bit.
>
> Also, the only way to call .probe() is to match an entry in
> .of_match_table[], so of_device_id cannot be NULL.
>
> Signed-off-by: Ryder Lee
> ---
> drivers/mtd/nand/
On Wed, 11 Apr 2018 10:57:57 +0800
Jia-Ju Bai wrote:
> doc_probe() is never called in atomic context.
>
> doc_probe() is only called by init_nanddoc(), which is only set as
> a parameter of module_init().
> This function is not called in atomic context.
>
> Despite never getting called from at
On Sun, 4 Mar 2018 21:06:01 +0100
Stefan Agner wrote:
> Add support for specified ECC strength/size using device tree
> properties nand-ecc-strength/nand-ecc-step-size.
>
> Signed-off-by: Stefan Agner
Applied to nand/next.
Thanks,
Boris
> ---
> drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 30
On Sat, 21 Apr 2018 08:54:40 +1000
NeilBrown wrote:
> Winbond spi-nor flash 32MB and larger have an 'Extended Address
> Register' as one option for addressing beyond 16MB (Macronix
> has the same concept, Spansion has EXTADD bits in the Bank Address
> Register).
>
> According to section
>8.2
On Tue, 10 Apr 2018 13:49:10 +0530
Vignesh R wrote:
> Add support to use DMA over memory mapped reads in direct mode. This
> helps in reducing CPU usage from ~100% to ~10% when reading data from
> flash. For non-DMA'able/vmalloc'd buffers, driver just falls back to CPU
> based memcpy.
>
> Signed
On Thu, 19 Apr 2018 16:05:59 +0200
Wolfram Sang wrote:
> We should get drvdata from struct device directly. Going via
> platform_device is an unneeded step back and forth.
>
> Signed-off-by: Wolfram Sang
Applied to mtd/next.
Thanks,
Boris
> ---
>
> Build tested only. buildbot is happy. Ple
On Thu, 19 Apr 2018 18:27:48 +0200
Peter Rosin wrote:
> This beats the heuristic that the connector is involved in what format
> should be output for cases where this fails.
>
> E.g. if there is a bridge that changes format between the encoder and the
> connector, or if some of the RGB pins betw
and can operate in parallel. At
> least in theory
>
> Instantiate a rs control instance per DoC device to avoid that. The per
> instance buffer is fine as the operation on a single DoC instance is
> serialized by the MTD/NAND core.
>
> Signed-off-by: Thomas Gleixner
>
r buffers to the control structure
> later on.
>
> Signed-off-by: Thomas Gleixner
> Cc: Boris Brezillon
> Cc: Tony Luck
> Cc: Kees Cook
> Cc: Segher Boessenkool
> Cc: Kernel Hardening
> Cc: Richard Weinberger
> Cc: Mike Snitzer
> Cc: Anton Vorontsov
> C
On Sat, 21 Apr 2018 07:28:19 +1000
NeilBrown wrote:
> On Fri, Apr 20 2018, Boris Brezillon wrote:
>
> > Hi Neil,
> >
> > On Mon, 16 Apr 2018 09:42:30 +1000
> > NeilBrown wrote:
> >
> >> Winbond spi-nor flash 32MB and larger have an '
On Mon, 26 Mar 2018 09:12:17 -0500
thor.tha...@linux.intel.com wrote:
> From: Thor Thayer
>
> The current Cadence QSPI driver caused a kernel panic when loading
> a Root Filesystem from QSPI. The problem was caused by reading more
> bytes than needed because the QSPI operated on 4 bytes at a tim
Hi Ladislav,
On Mon, 16 Apr 2018 08:52:59 +0200
Ladislav Michl wrote:
> dma_map_single doesn't get the proper DMA address for vmalloced area,
That's not true, it returns the right DMA (physical) address, it's just
that:
1/ the memory location is not necessarily physically contiguous
2/ in case
Hi Neil,
On Mon, 16 Apr 2018 09:42:30 +1000
NeilBrown wrote:
> Winbond spi-nor flash 32MB and larger have an 'Extended Address
> Register' as one option for addressing beyond 16MB (Macronix
> has the same concept, Spansion has EXTADD bits in the Bank Address
> Register).
>
> According to sectio
On Fri, 20 Apr 2018 10:52:41 +0200
Quentin Schulz wrote:
> There's already ECC on NAND pages so there may be no need for one to
> check the CRC of a UBI volume.
That's true that ECC can help detecting corruptions, but I don't think
this is the actual reason for disabling CRC check at volume open
On Wed, 18 Apr 2018 10:02:12 +0200
Peter Rosin wrote:
> On 2018-04-18 09:36, Boris Brezillon wrote:
> > On Tue, 17 Apr 2018 15:10:51 +0200
> > Peter Rosin wrote:
> >
> >> When the of-graph points to a tda998x-compatible HDMI encoder, register
> >>
On Wed, 18 Apr 2018 09:31:53 +0200
Peter Rosin wrote:
> On 2018-04-18 09:16, Boris Brezillon wrote:
> > Hi Peter,
> >
> > On Tue, 17 Apr 2018 15:10:48 +0200
> > Peter Rosin wrote:
> >
> >> With bus-type/bus-width properties in the endpoint nodes, t
On Wed, 18 Apr 2018 09:46:09 +0200
Peter Rosin wrote:
> On 2018-04-18 09:29, Boris Brezillon wrote:
> > On Tue, 17 Apr 2018 15:10:50 +0200
> > Peter Rosin wrote:
> >
> >> This beats the heuristic that the connector is involved in what format
> >> shou
On Tue, 17 Apr 2018 15:10:52 +0200
Peter Rosin wrote:
> Bump the minor version while at it.
>
> Signed-off-by: Peter Rosin
> ---
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_
atmel_hlcdc_crtc_create(struct drm_device *dev);
>
> int atmel_hlcdc_create_outputs(struct drm_device *dev);
>
> +struct component_match;
> +int atmel_hlcdc_add_component_encoder(struct drm_device *dev);
> +int atmel_hlcdc_get_external_components(struct device *dev,
> +
On Tue, 17 Apr 2018 15:10:50 +0200
Peter Rosin wrote:
> This beats the heuristic that the connector is involved in what format
> should be output for cases where this fails.
>
> E.g. if there is a bridge that changes format between the encoder and the
> connector, or if some of the RGB pins betw
Hi Peter,
On Tue, 17 Apr 2018 15:10:48 +0200
Peter Rosin wrote:
> With bus-type/bus-width properties in the endpoint nodes, the video-
> interface of the connection can be specified for cases where the
> heuristic fails to select the correct output mode. This can happen
> e.g. if not all RGB pin
On Wed, 11 Apr 2018 11:12:24 +0200
Ladislav Michl wrote:
> On Wed, Apr 11, 2018 at 10:52:01AM +0200, Boris Brezillon wrote:
> > On Wed, 11 Apr 2018 10:27:46 +0200
> > Ladislav Michl wrote:
> >
> > > On Wed, Apr 11, 2018 at 10:08:06AM +0200, Boris Brezillon w
On Mon, 9 Apr 2018 13:58:13 -0700
Eric Anholt wrote:
> Signed-off-by: Eric Anholt
> Fixes: 65101d8c9108 ("drm/vc4: Expose performance counters to userspace")
Reviewed-by: Boris Brezillon
> ---
> drivers/gpu/drm/vc4/vc4_drv.c | 1 +
> 1 file changed, 1 insertion(+)
On Wed, 11 Apr 2018 17:10:43 +0200
Peter Rosin wrote:
> On 2018-04-11 16:59, Boris Brezillon wrote:
> > On Wed, 11 Apr 2018 16:44:10 +0200
> > Peter Rosin wrote:
> >
> >> Hi Nicolas,
> >>
> >> Boris asked for your input on this (the datasheet d
On Wed, 11 Apr 2018 16:44:10 +0200
Peter Rosin wrote:
> Hi Nicolas,
>
> Boris asked for your input on this (the datasheet difference appears to
> have no bearing on the issue) elsewhere in the tree of messages. It's
> now been a week or so and I'm starting to wonder if you missed this
> altogeth
On Wed, 11 Apr 2018 10:27:46 +0200
Ladislav Michl wrote:
> On Wed, Apr 11, 2018 at 10:08:06AM +0200, Boris Brezillon wrote:
> > On Wed, 11 Apr 2018 09:36:56 +0200
> > Ladislav Michl wrote:
> >
> > > Hi Boris,
> > >
> > > On Wed, Apr 11,
On Wed, 11 Apr 2018 09:36:56 +0200
Ladislav Michl wrote:
> Hi Boris,
>
> On Wed, Apr 11, 2018 at 09:15:28AM +0200, Boris Brezillon wrote:
> > Hi Ladislav,
> >
> > On Wed, 11 Apr 2018 08:26:07 +0200
> > Ladislav Michl wrote:
> >
> > > Hi And
Hi Ladislav,
On Wed, 11 Apr 2018 08:26:07 +0200
Ladislav Michl wrote:
> Hi Andreas,
>
> On Wed, Apr 11, 2018 at 06:59:03AM +0200, Andreas Kemnade wrote:
> > Hi Ladis,
> >
> > On Tue, 10 Apr 2018 22:56:43 +0200
> > Ladislav Michl wrote:
> >
> > > Hi Nikolaus,
> > >
> > > On Tue, Apr 10, 20
Hi Marcin,
On Mon, 9 Apr 2018 20:16:49 -0400
Marcin Ziemianowicz wrote:
> When a USB device is connected to the USB host port on the SAM9N12 then
> you get "-62" error which seems to indicate USB replies from the device
> are timing out. Looking around, I saw the USB bus was running at half
> sp
Hi Marcin,
On Mon, 9 Apr 2018 20:16:21 -0400
Marcin Ziemianowicz wrote:
> I noticed that when debugging some USB clocking issue that there weren't
> many ways to tell what the state of the USB clocking system was. This
> adds a few logging statements to see what the relevant code is trying to
>
Hi Marcin
On Mon, 9 Apr 2018 20:15:51 -0400
Marcin Ziemianowicz wrote:
> This is a series of patches which resolves set_rate() for the PLL not
> having any effect and therefore the USB Host port not working. Also, a
> few messages were added which may be helpful in the future when others
> are w
On Tue, 10 Apr 2018 09:55:58 +0200
Miquel Raynal wrote:
> > Hi Abhishek,
> >
> > On Tue, 10 Apr 2018 11:39:35 +0530, Abhishek Sahu
> > wrote:
> >
> > > On 2018-04-06 18:01, Miquel Raynal wrote:
> > > > Hi Abhishek,
> > > >
> > > > On Wed, 4 Apr 2018 18:12:17 +0530, Abhishek Sahu
> > >
mtd: ftl: Use DIV_ROUND_UP()
Boris Brezillon (23):
mtd: Make sure the device supports erase operations in mtd_erase()
mtd: nand: Get rid of comments giving the file path inside the file itself
mtd: nand: Stop using full path when referring to files placed in the
same dir
mtd: nand
On Wed, 04 Apr 2018 21:49:26 +0200
Robert Jarzmik wrote:
> Ulf Hansson writes:
>
> > On 2 April 2018 at 16:26, Robert Jarzmik wrote:
> >> Hi,
> >>
> >> This serie is aimed at removing the dmaengine slave compat use, and
> >> transfer
> >> knowledge of the DMA requestors into architecture co
On Wed, 28 Mar 2018 22:51:44 +0200
Thomas Gleixner wrote:
> The reed solomon library is moving the on stack decoder buffers into the rs
> control structure. That would break the DoC driver because multiple
> instances share the same control structure and can operate in parallel. At
> least in the
conflict with my nand/for-4.17 changes (NAND
code base has been moved to drivers/mtd/nand/raw).
The rest looks good,
Acked-by: Boris Brezillon
> include/linux/rslib.h | 18 +++--
> lib/reed_solomon/decode_rs.c|1
> lib/reed_solomon/encode_rs.c|1
> lib
On Tue, 3 Apr 2018 10:14:31 +0200
Peter Rosin wrote:
> On 2018-04-03 09:15, Boris Brezillon wrote:
> > On Tue, 3 Apr 2018 08:51:10 +0200
> > Peter Rosin wrote:
> >
> >> On 2018-04-02 22:20, Boris Brezillon wrote:
> >>> On Mon, 2 Apr 2018 2
On Tue, 3 Apr 2018 09:15:22 +0200
Boris Brezillon wrote:
>
> >
> > to
> >
> > 0 33--3--3----
> > 1 33--3--3----
> > 2 33--
> > 3 -3333---
> > 4 33--
> > 5 3---
> >
On Tue, 3 Apr 2018 08:11:30 +0200
Peter Rosin wrote:
> On 2018-04-02 22:20, Boris Brezillon wrote:
> > On Mon, 2 Apr 2018 21:28:43 +0200
> > Boris Brezillon wrote:
> >
> >> On Mon, 2 Apr 2018 19:59:39 +0200
> >> Peter Rosin wrote:
> >>
On Tue, 3 Apr 2018 08:51:10 +0200
Peter Rosin wrote:
> On 2018-04-02 22:20, Boris Brezillon wrote:
> > On Mon, 2 Apr 2018 21:28:43 +0200
> > Boris Brezillon wrote:
> >
> >> On Mon, 2 Apr 2018 19:59:39 +0200
> >> Peter Rosin wrote:
> >>
ly have one plane (in this case, i.e. no cursor, no overlays etc),
> would that mean that only one master is used?
Yep, it's always using the first one (master 8 on a sama5d3).
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
On Mon, 2 Apr 2018 22:20:20 +0200
Boris Brezillon wrote:
> >
> > > And
> > > which DDR slave is the target? 7, 8, 9 or 10? More than one?
> >
> > This, I don't know. I guess all of them can be used.
>
> Looks like I was wrong. According t
On Mon, 2 Apr 2018 21:28:43 +0200
Boris Brezillon wrote:
> On Mon, 2 Apr 2018 19:59:39 +0200
> Peter Rosin wrote:
>
> > On 2018-04-02 14:22, Boris Brezillon wrote:
> > > On Thu, 29 Mar 2018 16:27:12 +0200
> > > Peter Rosin wrote:
> > >
> &g
On Mon, 2 Apr 2018 19:59:39 +0200
Peter Rosin wrote:
> On 2018-04-02 14:22, Boris Brezillon wrote:
> > On Thu, 29 Mar 2018 16:27:12 +0200
> > Peter Rosin wrote:
> >
> >> On 2018-03-29 15:44, Boris Brezillon wrote:
> >>> On Thu, 29 Mar 20
On Thu, 29 Mar 2018 16:27:12 +0200
Peter Rosin wrote:
> On 2018-03-29 15:44, Boris Brezillon wrote:
> > On Thu, 29 Mar 2018 15:37:43 +0200
> > Peter Rosin wrote:
> >
> >> On 2018-03-29 15:33, Boris Brezillon wrote:
> >>> On Thu, 29 Mar 20
to err;
> + return ret;
> }
>
> switch (info->chip.ecc.mode) {
> @@ -838,9 +820,6 @@ static int nand_davinci_probe(struct platform_device
> *pdev)
> nand_cleanup(&info->chip);
>
> err:
> - clk_disable_unprepare(info-&g
t after v4.17-rc1 is out if nobody complains
about the change.
> it will nice to put this on
> an immutable branch others can merge. There is potential cleanup
> in drivers/clock and in DaVinci machine code that will depend
> on this.
Sure, I can do that.
--
Boris Brezillo
put me as the
contact until someone takes over (I think Marek, the other spi-nor
maintainer, does not have access to the repo yet).
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
On Fri, 30 Mar 2018 09:55:22 +0200
Geert Uytterhoeven wrote:
> Hi Boris,
>
> On Fri, Mar 30, 2018 at 9:47 AM, Boris Brezillon
> wrote:
> > A new I3C subsystem has been added and a generic description has been
> > created to represent the I3C bus and the
us, it's only about handling master requests and generating
IBIs. Some of the struct, constant and enum definitions could be
shared, but most of the I3C slave framework logic will be different
Signed-off-by: Boris Brezillon
---
Changes in v3:
- Fix locking issues
- Explicitly include a bu
A new I3C subsystem has been added and a generic description has been
created to represent the I3C bus and the devices connected on it.
Document this generic representation.
Signed-off-by: Boris Brezillon
---
Changes in v4:
- Clarify the fact that static address == I3C address and dynamic
tchwork.ozlabs.org/project/linux-i2c/list/?series=35687
Boris Brezillon (10):
i3c: Add core I3C infrastructure
docs: driver-api: Add I3C documentation
i3c: Add sysfs ABI spec
dt-bindings: i3c: Document core bindings
dt-bindings: i3c: Add macros to help fill I3C/I2C device's reg
Document sysfs files/directories/symlinks exposed by the I3C subsystem.
Signed-off-by: Boris Brezillon
---
Changes in v2:
- new patch
---
Documentation/ABI/testing/sysfs-bus-i3c | 95 +
1 file changed, 95 insertions(+)
create mode 100644 Documentation/ABI
Create an entry for the I3C subsystem and mark it as maintained by me.
There's no official git repository, patchwork instance, mailing list or
website yet, but this will be added after the subsystem has been
accepted.
Signed-off-by: Boris Brezillon
---
MAINTAINERS | 9 +
1 file ch
Document Cadence I3C master DT bindings.
Signed-off-by: Boris Brezillon
---
Changes in v4:
- Fix example to match the new representation
---
.../devicetree/bindings/i3c/cdns,i3c-master.txt| 44 ++
1 file changed, 44 insertions(+)
create mode 100644 Documentation
The reg property of devices connected to an I3C bus have 3 cells, and
filling them manually is not trivial. Provides macros to help doing
that.
Signed-off-by: Boris Brezillon
Reviewed-by: Rob Herring
---
include/dt-bindings/i3c/i3c.h | 28
1 file changed, 28
Add a driver for Cadence I3C master IP.
Signed-off-by: Boris Brezillon
---
Changes in v4:
- Fix potential unsigned integer underflow
- Add missing static specific on IBI related functions
Changes in v3:
- Adjust to match I3C framework changes
- Implement support the CMD RESPONSE QUEUE and IBI
Document the Cadence I3C gpio expander bindings.
Signed-off-by: Boris Brezillon
---
Changes in v4:
- Use GPIO_ and IRQ_TYPE_ macros instead of raw numbers
- Fix the unit-address in the example
---
.../devicetree/bindings/gpio/gpio-cdns-i3c.txt | 39 ++
1 file changed, 39
Add the I3C documentation describing the protocol, the master driver API
and the device driver API.
Signed-off-by: Boris Brezillon
---
Changes in v2:
- Moved out of patch "i3c: Add core I3C infrastructure"
- Add link to the I3C spec
- Move rst files in Documentation/driv
Add a driver for Cadence I3C GPIO expander.
Signed-off-by: Boris Brezillon
---
drivers/gpio/Kconfig | 11 ++
drivers/gpio/Makefile| 1 +
drivers/gpio/gpio-cdns-i3c.c | 380 +++
3 files changed, 392 insertions(+)
create mode 100644
(part->header.BAMOffset), SECTOR_SIZE);
>
> offset = xfer->Offset + le32_to_cpu(part->header.BAMOffset);
> ctl = cpu_to_le32(BLOCK_CONTROL);
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
gt; mtd
> > topcis, I'm off-line almost all the time :(
> >
> > Sorry guys and thanks for your concern, Marek! :)
> That's kinda sad, I'd like to NAK this patch.
Yes, it's sad. Anyway, thanks for clarifying the situation.
Regards,
Boris
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
s DMA or
not, no whether it should be enabled on a per-board basis.
> associated with a module parameter as well (use_dma,).
That's true for the use_dma module param, I didn't add it back when
reworking the driver.
>
> Is it only managed by old DT binding?
It is. I'm real
On Thu, 29 Mar 2018 15:37:43 +0200
Peter Rosin wrote:
> On 2018-03-29 15:33, Boris Brezillon wrote:
> > On Thu, 29 Mar 2018 15:10:54 +0200
> > Peter Rosin wrote:
> >
> >> On a sama5d31 with a Full-HD dual LVDS panel (132MHz pixel clock) NAND
> >>
urn ret;
> }
>
> - if (nc->caps->has_dma) {
> + if (nc->caps->has_dma && !atmel_nand_avoid_dma) {
> dma_cap_mask_t mask;
>
> dma_cap_zero(mask);
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
EV() macros in the bindings doc?
> > And if I do, should I use them my example?
>
> Well, I don't want to see "device@I3C_DEV(...)" for unit-addresses.
That wouldn't work anyway.
> You can use them for reg property, but it's somewhat pointless to
On Wed, 28 Mar 2018 14:22:36 +0200
Daniel Vetter wrote:
> On Wed, Mar 28, 2018 at 09:34:54AM +0200, Boris Brezillon wrote:
> > Hi Peter,
> >
> > On Mon, 26 Mar 2018 09:35:02 +0200
> > Peter Rosin wrote:
> >
> > > I have an sama5d31-based system with
tic address. */
> > + thermal_sensor: sensor@68,39200144004 {
> > + reg = <0x68 0x392 0x144004>;
> > + assigned-address = <0xa>;
> > + };
> > +
> > + /*
> > +* I3C device without a static address but requiring resources
> > +* described in the DT.
> > +*/
> > + sensor@0,39200154004 {
> > + reg = <0x0 0x392 0x154004>;
> > + clocks = <&clock_provider 0>;
> > + };
> > + };
> > +
> > --
> > 2.14.1
> >
[1]http://www.i2c-bus.org/addressing
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
h) {
> + case 0: /* driver default */
> + case 8:
> + case 16:
> + case 24:
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> ddev = drm_dev_alloc(&atmel_hlcdc_dc_driver, &pdev->dev);
> if (IS_ERR(ddev))
> return PTR_ERR(ddev);
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
in the kernel
Note that I'm not saying never, but you have to accept to wait longer
for this kind of patches, and more importantly, if you keep sending
only coding style patches, we might decide to ignore your contributions
at some point.
Regards,
Boris
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
On Mon, 26 Mar 2018 12:12:54 +0200
Geert Uytterhoeven wrote:
> Hi Boris,
>
> On Fri, Mar 23, 2018 at 12:00 PM, Boris Brezillon
> wrote:
> > Document the Cadence I3C gpio expander bindings.
> >
> > Signed-off-by: Boris Brezillon
>
> Thanks for your p
Hi Geert,
On Mon, 26 Mar 2018 12:17:26 +0200
Geert Uytterhoeven wrote:
> Hi Boris,
>
> On Fri, Mar 23, 2018 at 12:00 PM, Boris Brezillon
> wrote:
> > Document the Cadence I3C gpio expander bindings.
> >
> > Signed-off-by: Boris Brezillon
>
> Thanks
Hi Geert,
On Mon, 26 Mar 2018 12:22:24 +0200
Geert Uytterhoeven wrote:
> Hi Boris,
>
> On Fri, Mar 23, 2018 at 12:00 PM, Boris Brezillon
> wrote:
> > From: Boris Brezillon
> >
> > A new I3C subsystem has been added and a generic description has been
> >
closer look
and it seems the only user of info->archdata is i2c-core-of.c, so we
can even remove the info->archdata field.
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
ut any further
modification, and leaving info->archdata to NULL has the exact same
effect (see [1]).
Regards,
Boris
[1]https://elixir.bootlin.com/linux/v4.16-rc6/source/drivers/i2c/i2c-core-base.c#L711
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
16 insertions(+), 26 deletions(-)
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
On Fri, 23 Mar 2018 12:10:35 +0100
Thomas Petazzoni wrote:
> Hello,
>
> On Fri, 23 Mar 2018 12:00:18 +0100, Boris Brezillon wrote:
>
> > +Optional properties defined by the generic binding (see
> > +Documentation/devicetree/bindings/i3c/i3c.txt for more details):
> &
ot;;
> > + i2c-scl-frequency = <10>;
>
> Another s/frequency/hz/ instance, similar to those reported by Thomas.
Will fix it in v4.
Thanks,
Boris
--
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
From: Boris Brezillon
Document sysfs files/directories/symlinks exposed by the I3C subsystem.
Signed-off-by: Boris Brezillon
---
Changes in v2:
- new patch
---
Documentation/ABI/testing/sysfs-bus-i3c | 95 +
1 file changed, 95 insertions(+)
create mode 100644
On Fri, 23 Mar 2018 12:00:09 +0100
Boris Brezillon wrote:
> This patch series is a proposal for a new I3C [1] subsystem.
>
> This infrastructure is not complete yet and will be extended over
> time.
>
> There are a few design choices that are worth mentioning because they
&g
From: Boris Brezillon
Add core infrastructure to support I3C in Linux and document it.
This infrastructure is not complete yet and will be extended over
time.
There are a few design choices that are worth mentioning because they
impact the way I3C device drivers can interact with their devices
Create an entry for the I3C subsystem and mark it as maintained by me.
There's no official git repository, patchwork instance, mailing list or
website yet, but this will be added after the subsystem has been
accepted.
Signed-off-by: Boris Brezillon
---
MAINTAINERS | 9 +
1 file ch
From: Boris Brezillon
A new I3C subsystem has been added and a generic description has been
created to represent the I3C bus and the devices connected on it.
Document this generic representation.
Signed-off-by: Boris Brezillon
---
Changes in v3:
- Rename {i2c,i3c}-scl-frequency DT prop into
The reg property of devices connected to an I3C bus have 3 cells, and
filling them manually is not trivial. Provides macros to help doing
that.
Signed-off-by: Boris Brezillon
---
include/dt-bindings/i3c/i3c.h | 28
1 file changed, 28 insertions(+)
create mode
From: Boris Brezillon
Document Cadence I3C master DT bindings.
Signed-off-by: Boris Brezillon
---
.../devicetree/bindings/i3c/cdns,i3c-master.txt| 45 ++
1 file changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i3c/cdns,i3c-master.txt
From: Boris Brezillon
Add a driver for Cadence I3C master IP.
Signed-off-by: Boris Brezillon
---
Changes in v3:
- Adjust to match I3C framework changes
- Implement support the CMD RESPONSE QUEUE and IBI QUEUE added in the
latest revision of Cadence master IP
- Remove support for HDR modes
From: Boris Brezillon
I3C busses have to know about all I2C devices connected on the I3C bus
to properly initialize the I3C master, and I2C frames can't be sent on
the bus until this initialization is done.
We can't let the I2C core parse the DT and instantiate I2C devices as
p
Add a driver for Cadence I3C GPIO expander.
Signed-off-by: Boris Brezillon
---
drivers/gpio/Kconfig | 11 ++
drivers/gpio/Makefile| 1 +
drivers/gpio/gpio-cdns-i3c.c | 380 +++
3 files changed, 392 insertions(+)
create mode 100644
Document the Cadence I3C gpio expander bindings.
Signed-off-by: Boris Brezillon
---
.../devicetree/bindings/gpio/gpio-cdns-i3c.txt | 38 ++
1 file changed, 38 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-cdns-i3c.txt
diff --git a
From: Boris Brezillon
Add the I3C documentation describing the protocol, the master driver API
and the device driver API.
Signed-off-by: Boris Brezillon
---
Changes in v2:
- Moved out of patch "i3c: Add core I3C infrastructure"
- Add link to the I3C spec
- Move rst files in Doc
, this way maybe I'll have reviews
on the doc itself :-).
Thanks,
Boris
Boris Brezillon (11):
i2c: Export of_i2c_get_board_info()
i3c: Add core I3C infrastructure
docs: driver-api: Add I3C documentation
i3c: Add sysfs ABI spec
dt-bindings: i3c: Document core bindings
dt-bi
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