[PATCH v8 0/6] serial: mvebu-uart: Support for higher baudrates

From: Marek Behún
Date: Fri Feb 11 2022 - 14:12:49 EST


Hello Greg, Stephen, Gregory,

at Pali's request I have reviewed, updated and tested his series adding
support for higher baudrates on Marvell Armada A37xx boards.

I have updated commit messages, some comments and indentation at some
places. As per Stephen Boyd's request, commit message of patch 3 now
contains more information about why we need to have UART
clock-controller binding defined in such a way (due to backwards
compatibility).

Marek

Changes in v7:
* fixed lint errors in yaml binding file
* added Reviewed-by tags
* changed commit messages and comments a little
* fixed indentation at some places
* swapped patch 2 and 3 (dt-binding defining new binding should go
before the driver adding usage of that new binding)

Changes in v6:
* fixed yaml binding file and dts files

Changes in v5:
* fixed yaml binding file

Changes in v4:
* converted armada3700-uart-clock documentation to YAML
* split documentation changes into two commits:
- first which adds clock documentation
- second which updates UART documentation

Changes in v3:
v3 is rebased on top of Linus master branch and all already applied patches
were dropped. There are no changes in patches itself since v2.

Pali Rohár (6):
math64: New DIV_U64_ROUND_CLOSEST helper
dt-bindings: mvebu-uart: document DT bindings for
marvell,armada-3700-uart-clock
serial: mvebu-uart: implement UART clock driver for configuring UART
base clock
dt-bindings: mvebu-uart: update information about UART clock
arm64: dts: marvell: armada-37xx: add device node for UART clock and
use it
serial: mvebu-uart: implement support for baudrates higher than 230400
Bd

.../clock/marvell,armada-3700-uart-clock.yaml | 59 ++
.../devicetree/bindings/serial/mvebu-uart.txt | 9 +-
arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 14 +-
drivers/tty/serial/Kconfig | 1 +
drivers/tty/serial/mvebu-uart.c | 596 +++++++++++++++++-
include/linux/math64.h | 13 +
6 files changed, 671 insertions(+), 21 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/marvell,armada-3700-uart-clock.yaml

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2.34.1