[PATCH 0/4] Add Microchip I3C controller

Conor Dooley conor at kernel.org
Wed Sep 10 10:54:58 PDT 2025


On Wed, Sep 10, 2025 at 06:14:21AM +0000, Durai.ManickamKR at microchip.com wrote:
> On 10/09/25 01:16, Conor Dooley wrote:
> > On Tue, Sep 09, 2025 at 04:43:29PM +0530, Durai Manickam KR wrote:
> >> Add support for microchip SAMA7D65 I3C HCI master only IP. This
> >> hardware is an instance of the MIPI I3C HCI Controller implementing
> >> version 1.0 specification. This driver adds platform-specific
> >> support for SAMA7D65 SoC.
> >>
> >> I3C in master mode supports up to 12.5MHz, SDR mode data transfer in
> >> mixed bus mode (I2C and I3C target devices on same i3c bus). It also
> >> supports IBI mechanism.
> >>      
> >> Features tested and supported :
> >> 	Standard CCC commands.
> >>         	I3C SDR mode private transfers in PIO mode.
> >>         	I2C transfers in PIO mode.
> >>         	Pure bus mode and mixed bus mode.
> >>
> >> Testing done:
> >> With this patch we are able to fully configure the lsm6dso I3C slave
> >> device. Unlike I2C, I hope there is no linux utility to check the
> >> various transactions supported in the host controller. These features
> >> will be added later on this driver after testing (probably with I3C
> >> analyser KIT).
> >>
> >> Durai Manickam KR (4):
> >>    clk: at91: sama7d65: add peripheral clock for I3C
> >>    i3c: master: add Microchip SAMA7D65 I3C HCI master driver
> >>    ARM: configs: at91: sama7: Add SAMA7D65 I3C HCI master
> >>    ARM: dts: microchip: add I3C controller
> >>
> >>   arch/arm/boot/dts/microchip/sama7d65.dtsi    |   12 +
> >>   arch/arm/configs/sama7_defconfig             |    2 +
> >>   drivers/clk/at91/sama7d65.c                  |    5 +-
> >>   drivers/i3c/master/Kconfig                   |   14 +
> >>   drivers/i3c/master/Makefile                  |    1 +
> >>   drivers/i3c/master/sama7d65-i3c-hci-master.c | 2705 ++++++++++++++++++
> >>   6 files changed, 2737 insertions(+), 2 deletions(-)
> >>   create mode 100644 drivers/i3c/master/sama7d65-i3c-hci-master.c
> 
> Hi Conor,
> 
> Was planning to sent along with the review comments received for the i3c 
> driver. Will add this and send in patch v2 series.
> 
> > Where is your dt-binding?

Weird quoting going on here. Why didn't you just send it with the v1,
like is normally done? There's no explanation provided about why you've
omitted it.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-i3c/attachments/20250910/f8e60f8c/attachment-0001.sig>


More information about the linux-i3c mailing list