[PATCH v3 0/8] Add support for the rest of Renesas RZ/G3S serial interfaces

Claudiu
2024-11-15T13:44:11Z

From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

Hi,

The Renesas RZ/G3S SoC has 6 serial interfaces. One of them is used
as debug console (and it is already enabled in the current code base).
Series adds support for the remaining ones.

Patches:
- 01/08 - adds clock, reset and power domain support for the serial
interfaces
- 02/08 - serial driver fix patch identified while adding RZ/G3S
support
- 03/08 - extends suspend to RAM support on the serial driver for
the RZ/G3S SoC
- 04-08/08 - add device tree support

Merge strategy, if any:
- patch 01/08 can go through Renesas tree
- patches 02-03/08 can go through serial tree
- patches 04-08/08 can go through Renesas tree

Thank you,
Claudiu Beznea

Changes in v3:
- in patch "serial: sh-sci: Check if TX data was written to device in
.tx_empty()":
-- check the status of the DMA transaction in tx_empty()
-- changed the variable name that tracks if TX occurred

Changes in v2:
- drop patch "serial: sh-sci: Clean sci_ports[0] after at earlycon exit"
from v1 as it was already applied
- used bool instead of atomic_t in patch
"serial: sh-sci: Check if TX data was written to device in .tx_empty()"

Claudiu Beznea (8):
clk: renesas: r9a08g045: Add clock, reset and power domain for the
remaining SCIFs
serial: sh-sci: Check if TX data was written to device in .tx_empty()
serial: sh-sci: Update the suspend/resume support
arm64: dts: renesas: r9a08g045: Add the remaining SCIF interfaces
arm64: dts: renesas: rzg3s-smarc: Fix the debug serial alias
arm64: dts: renesas: rzg3s-smarc-switches: Add a header to describe
different switches
arm64: dts: renesas: rzg3s-smarc: Enable SCIF3
arm64: dts: renesas: r9a08g045s33-smarc-pmod: Add overlay for SCIF1

arch/arm64/boot/dts/renesas/Makefile | 3 +
arch/arm64/boot/dts/renesas/r9a08g045.dtsi | 90 +++++++++++++++++++
.../dts/renesas/r9a08g045s33-smarc-pmod.dtso | 48 ++++++++++
.../boot/dts/renesas/rzg3s-smarc-som.dtsi | 25 +-----
.../boot/dts/renesas/rzg3s-smarc-switches.h | 32 +++++++
arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi | 25 +++++-
drivers/clk/renesas/r9a08g045-cpg.c | 20 +++++
drivers/tty/serial/sh-sci.c | 79 ++++++++++++++--
8 files changed, 288 insertions(+), 34 deletions(-)
create mode 100644 arch/arm64/boot/dts/renesas/r9a08g045s33-smarc-pmod.dtso
create mode 100644 arch/arm64/boot/dts/renesas/rzg3s-smarc-switches.h

--
2.39.2