[PATCH 0/4] Add Microchip I3C controller
Durai.ManickamKR at microchip.com
Durai.ManickamKR at microchip.com
Tue Sep 9 23:14:21 PDT 2025
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?
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