linux-kernel - [PATCH 00/18] serial: sc16is7xx: fixes, cleanups and improvements

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Message-Id: <20231219171903.3530985-1-hugo@hugovil.com>
Date: Tue, 19 Dec 2023 12:18:44 -0500
From: Hugo Villeneuve <hugo@...ovil.com>
To: gregkh@...uxfoundation.org,
	jirislaby@...nel.org,
	jringle@...dpoint.com,
	kubakici@...pl,
	phil@...pberrypi.org,
	bo.svangard@...eddedart.se
Cc: linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	hugo@...ovil.com,
	Hugo Villeneuve <hvilleneuve@...onoff.com>
Subject: [PATCH 00/18] serial: sc16is7xx: fixes, cleanups and improvements

From: Hugo Villeneuve <hvilleneuve@...onoff.com>

Hello,
this patch series brings a few fixes, clean-ups and improvements to the
sc16is7xx driver.

Some of the patches have been suggested by Andy Shevchenko following this
dicussion:

Link: https://lore.kernel.org/all/CAHp75VebCZckUrNraYQj9k=Mrn2kbYs1Lx26f5-8rKJ3RXeh-w@mail.gmail.com/

I have tested the changes on a custom board with two SC16IS752 DUART over
a SPI interface using a Variscite IMX8MN NANO SOM. The four UARTs are
configured in RS-485 mode.

I did not test the change on a SC16is7xx using I2C interface, as my custom
board is only using SPI.

Thank you.

Hugo Villeneuve (18):
  serial: sc16is7xx: fix segfault when removing driver
  serial: sc16is7xx: fix invalid sc16is7xx_lines bitfield in case of
    probe error
  serial: sc16is7xx: remove obsolete loop in sc16is7xx_port_irq()
  serial: sc16is7xx: improve do/while loop in sc16is7xx_irq()
  serial: sc16is7xx: use DECLARE_BITMAP for sc16is7xx_lines bitfield
  serial: sc16is7xx: use spi_get_device_match_data()
  serial: sc16is7xx: use i2c_get_match_data()
  serial: sc16is7xx: add driver name to struct uart_driver
  serial: sc16is7xx: add macro for max number of UART ports
  serial: sc16is7xx: use HZ_PER_MHZ macro to improve readability
  serial: sc16is7xx: add explicit return for some switch default cases
  serial: sc16is7xx: replace hardcoded divisor value with BIT() macro
  serial: sc16is7xx: use in_range() for DT properties bound checks
  serial: sc16is7xx: drop unneeded MODULE_ALIAS
  serial: sc16is7xx: pass R/W buffer in FIFO functions
  serial: sc16is7xx: reorder code to remove prototype declarations
  serial: sc16is7xx: refactor EFR lock
  serial: sc16is7xx: fix whitespace in sc16is7xx_startup() comments

 drivers/tty/serial/sc16is7xx.c | 392 ++++++++++++++++-----------------
 1 file changed, 191 insertions(+), 201 deletions(-)


base-commit: 43f012df3c1e979966524f79b5371fde6545488a
-- 
2.39.2