linux-kernel - [PATCH 0/7] serial: 8250_fintek: Fix the IRQ mode and code refactoring

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Date:   Thu,  1 Sep 2016 11:39:49 +0800
From:   "Ji-Ze Hong (Peter Hong)" <hpeter@...il.com>
To:     gregkh@...uxfoundation.org, jslaby@...e.com,
        ricardo.ribalda@...il.com
Cc:     arnd@...db.de, peter@...leysoftware.com,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        tom_tsai@...tek.com.tw, peter_hong@...tek.com.tw,
        "Ji-Ze Hong (Peter Hong)" <hpeter+linux_kernel@...il.com>
Subject: [PATCH 0/7] serial: 8250_fintek: Fix the IRQ mode and code refactoring

The following patches will fix the Fintek LPC to UARTs IRQ mode mismatch
issue, code refactoring and this series patches should follow by patch
rename IRQ_MODE macro on
'commit 87a713c8ffca ("8250/fintek: rename IRQ_MODE macro")'.
with tty-linus branch.

Some BIOS only use _OSI("Linux") to distinguish between Linux & Windows.
Apply Level/Low to UART trigger mode if Windows, Edge/High otherwise.
But since 2.6.23 the mainline kernel no longer returns true for
_OSI(“Linux”). The BIOS ASL should avoid to use _OSI() to check system
type and use ACPI MADT override IRQ mode instead.

We'll try to refactoring the source code more readable with SuperIO
read/write register functions.

Ricardo Ribalda Delgado suggest fixing a potential NULL pointer
dereference with applied patch
fix the mismatched IRQ mode on
'commit 4da22f1418cb ("serial: 8250_fintek: fix the mismatched IRQ mode")'.
had been implemented with 8250_fintek: Set IRQ Mode when port probed.

Ji-Ze Hong (Peter Hong) (7):
  serial: 8250_fintek: Refactoring read/write method
  serial: 8250_fintek: Set IRQ Mode when port probed
  serial: 8250_fintek: Set maximum FIFO of F81216H
  serial: 8250_fintek: Rearrange function
  serial: 8250_fintek: Add F81216 Support
  serial: 8250_fintek: Add F81866 Support
  serial: 8250_fintek: Add F81865 Support

 drivers/tty/serial/8250/8250_fintek.c | 233 +++++++++++++++++++++++++---------
 1 file changed, 175 insertions(+), 58 deletions(-)

-- 
1.9.1