linux-kernel - [PATCH mips-next 5/5] Revert "MIPS: Add custom serial.h with BASE

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Date:   Wed, 22 Jan 2020 13:58:52 +0300
From:   Alexander Lobakin <alobakin@...nk.ru>
To:     Paul Burton <paulburton@...nel.org>
Cc:     Ralf Baechle <ralf@...ux-mips.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Will Deacon <will@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Alexander Lobakin <alobakin@...nk.ru>,
        Michal Simek <michal.simek@...inx.com>,
        Allison Randal <allison@...utok.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH mips-next 5/5] Revert "MIPS: Add custom serial.h with BASE_BAUD override for generic kernel"

This reverts commit c8ec2041f549e7f2dee0c34d25381be6f7805f99.

There's no more need to set BASE_BAUD to 0 to make earlycon work
properly on DTS-based boards since such cases were handled in commit
182ead3e418a ("earlycon: Remove hardcoded port->uartclk initialization
in of_setup_earlycon"). earlycon no longer initializes port->uartclk
with a value of BASE_BAUD * 16 when starting from FDT/OF.

Signed-off-by: Alexander Lobakin <alobakin@...nk.ru>
---
 arch/mips/include/asm/Kbuild   |  1 +
 arch/mips/include/asm/serial.h | 18 ------------------
 2 files changed, 1 insertion(+), 18 deletions(-)
 delete mode 100644 arch/mips/include/asm/serial.h

diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 61b0fc2026e6..16d1eb4c8fe6 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -19,6 +19,7 @@ generic-y += preempt.h
 generic-y += qrwlock.h
 generic-y += qspinlock.h
 generic-y += sections.h
+generic-y += serial.h
 generic-y += trace_clock.h
 generic-y += unaligned.h
 generic-y += user.h
diff --git a/arch/mips/include/asm/serial.h b/arch/mips/include/asm/serial.h
deleted file mode 100644
index 2777148dbfc5..000000000000
--- a/arch/mips/include/asm/serial.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (C) 2017 MIPS Tech, LLC
- */
-#ifndef __ASM__SERIAL_H
-#define __ASM__SERIAL_H
-
-#ifdef CONFIG_MIPS_GENERIC
-/*
- * Generic kernels cannot know a correct value for all platforms at
- * compile time. Set it to 0 to prevent 8250_early using it
- */
-#define BASE_BAUD 0
-#else
-#include <asm-generic/serial.h>
-#endif
-
-#endif /* __ASM__SERIAL_H */
-- 
2.25.0