From mboxrd@z Thu Jan 1 00:00:00 1970 From: dahuang@nvidia.com (Danny Huang) Date: Tue, 19 Mar 2013 10:33:25 +0800 Subject: [PATCH] ARM: tegra: fuse: add fuctions to read speedo id and process id Message-ID: <1363660405-10668-1-git-send-email-dahuang@nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add functions to read the speedo and process id of both cpu and soc. There might be some drivers need the information as well. Signed-off-by: Danny Huang --- arch/arm/mach-tegra/fuse.c | 24 ++++++++++++++++++++++++ include/linux/tegra-soc.h | 6 +++++- 2 files changed, 29 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c index f7db078..f0e356e 100644 --- a/arch/arm/mach-tegra/fuse.c +++ b/arch/arm/mach-tegra/fuse.c @@ -2,6 +2,7 @@ * arch/arm/mach-tegra/fuse.c * * Copyright (C) 2010 Google, Inc. + * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. * * Author: * Colin Cross @@ -161,3 +162,26 @@ unsigned long long tegra_chip_uid(void) return (hi << 32ull) | lo; } EXPORT_SYMBOL(tegra_chip_uid); + +int tegra_get_cpu_process_id(void) +{ + return tegra_cpu_process_id; +} + +int tegra_get_core_process_id(void) +{ + return tegra_core_process_id; +} + +int tegra_get_cpu_speedo_id(void) +{ + if (tegra_chip_id == TEGRA20) + return -EINVAL; + + return tegra_cpu_speedo_id; +} + +int tegra_get_soc_speedo_id(void) +{ + return tegra_soc_speedo_id; +} diff --git a/include/linux/tegra-soc.h b/include/linux/tegra-soc.h index 95f611d..b3e4b74 100644 --- a/include/linux/tegra-soc.h +++ b/include/linux/tegra-soc.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2012,2013, NVIDIA CORPORATION. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -18,5 +18,9 @@ #define __LINUX_TEGRA_SOC_H_ u32 tegra_read_chipid(void); +int tegra_get_cpu_process_id(void); +int tegra_get_core_process_id(void); +int tegra_get_cpu_speedo_id(void); +int tegra_get_soc_speedo_id(void); #endif /* __LINUX_TEGRA_SOC_H_ */ -- 1.8.2