| From 99335526b57f9e586ddaf3c2cc102abd9eb65e73 Mon Sep 17 00:00:00 2001 |
| From: Wu Zhangjin <wuzhangjin@gmail.com> |
| Date: Wed, 10 Mar 2010 02:11:26 +0800 |
| Subject: [PATCH] RT: MIPS: Loongson: make the MFGPT timer depends on !PREEMPT_RT |
| |
| commit 99335526b57f9e586ddaf3c2cc102abd9eb65e73 in tip. |
| |
| There is a MFGPT timer in Lemote-2F family of machines, which have low |
| precision and not support oneshot mode, so, only let it be un-available |
| in PREEMTPT_RT for we have an MIPS-builtin high-resolution timer: r4k |
| timer. |
| |
| For we disable it for PREEMPT_RT, there is no need to convert the |
| related lock to raw_ one. |
| |
| Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> |
| |
| diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig |
| index 3df1967..ab08247 100644 |
| --- a/arch/mips/loongson/Kconfig |
| +++ b/arch/mips/loongson/Kconfig |
| @@ -64,7 +64,7 @@ config CS5536 |
| |
| config CS5536_MFGPT |
| bool "CS5536 MFGPT Timer" |
| - depends on CS5536 |
| + depends on CS5536 && !PREEMPT_RT |
| select MIPS_EXTERNAL_TIMER |
| help |
| This option enables the mfgpt0 timer of AMD CS5536. |
| -- |
| 1.7.1.1 |
| |
