The PRU_ICSSG subsystems in am64x SoC, the PRU subsystem in am62 SoC, and
PRU_ICSS subsystem in am335x SoC include a UART sub-module. This patch
series introduces the driver and the corresponding binding documentation
for this UART sub-module.

The DTS patches for adding PRU UART nodes and enabling PRU UART is added
in this v1 version, but marked as DONOTMERGE since the patches only add
context to this series.

This driver version has been tested on the following boards: am64x SK and
am62x SK.

The RFC version of this driver has been previously tested on am335x SK as
well. DTS patches for enabling PRU UART for am335x SK will be sent as a
separate series once this series is merged.

Changes since RFC:
- Add DTS patches 3-6
- Fix include list
- Switch to platform_get_resource & uart_read_port_properties
- Remove custom speed hack in pruss8250_get_divisor
- Use port->serial_out functions provided by core driver instead of
  local writel() functions
- Switch to UPIO_MEM32 since largest UART register is 18 bits in length
- Cleanup whitspace, comments, variable/structure names, error paths
  and GPL licensing

Link to RFC:
https://lore.kernel.org/all/20250501003113.1609342-1-jm@ti.com/

Bin Liu (2):
  dt-bindings: serial: add binding documentation for TI PRUSS UART
  serial: 8250: Add PRUSS UART driver

Judith Mendez (5):
  dt-bindings: soc: ti: pruss: Add documentation for PRU UART support
  DONOTMERGE: arm64: dts: ti: k3-am64-main: Add PRU UART nodes
  DONOTMERGE: arm64: dts: ti: k3-am642-sk: Enable PRU UART
  DONOTMERGE: arm64: dts: ti: k3-am62-main: Add PRU UART node
  DONOTMERGE: arm64: dts: ti: k3-am62x-sk: Enable PRU UART

 .../bindings/serial/ti,pruss-uart.yaml        |  54 ++++++
 .../devicetree/bindings/soc/ti/ti,pruss.yaml  |   7 +
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi      |   9 +
 .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi |  14 ++
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi      |  18 ++
 arch/arm64/boot/dts/ti/k3-am642-sk.dts        |  16 ++
 drivers/tty/serial/8250/8250_pruss.c          | 178 ++++++++++++++++++
 drivers/tty/serial/8250/Kconfig               |  11 ++
 drivers/tty/serial/8250/Makefile              |   1 +
 9 files changed, 308 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/ti,pruss-uart.yaml
 create mode 100644 drivers/tty/serial/8250/8250_pruss.c


base-commit: edef457004774e598fc4c1b7d1d4f0bcd9d0bb30
-- 
2.49.0

On Tue, May 13, 2025 at 04:59:27PM -0500, Judith Mendez wrote:
> The PRU_ICSSG subsystems in am64x SoC, the PRU subsystem in am62 SoC, and
> PRU_ICSS subsystem in am335x SoC include a UART sub-module. This patch
> series introduces the driver and the corresponding binding documentation
> for this UART sub-module.
> 
> The DTS patches for adding PRU UART nodes and enabling PRU UART is added
> in this v1 version, but marked as DONOTMERGE since the patches only add
> context to this series.

This prevents the series from being merged as our tools want to take the
whole series :(

So please, submit this in a format that we can handle.  As-is, this just
makes me want to ignore it totally and focus on patch series that can be
applied.  In other words, what would you do if you were in the position
of attempting to review this?

thanks,

greg k-h

On 13/05/2025 23:59, Judith Mendez wrote:
> The PRU_ICSSG subsystems in am64x SoC, the PRU subsystem in am62 SoC, and
> PRU_ICSS subsystem in am335x SoC include a UART sub-module. This patch
> series introduces the driver and the corresponding binding documentation
> for this UART sub-module.
> 
> The DTS patches for adding PRU UART nodes and enabling PRU UART is added
> in this v1 version, but marked as DONOTMERGE since the patches only add
> context to this series.
> 
> This driver version has been tested on the following boards: am64x SK and
> am62x SK.
> 
> The RFC version of this driver has been previously tested on am335x SK as
> well. DTS patches for enabling PRU UART for am335x SK will be sent as a
> separate series once this series is merged.
> 
> Changes since RFC:
So this is v2 or v3. If this is confusing, just use b4 which does it for
you.

Otherwise how are we supposed to compare it with b4 diff?

Best regards,
Krzysztof