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OpenCloudOS-Kernel/include/soc/imx/cpuidle.h

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-29 22:18:02 +08:00
/* SPDX-License-Identifier: GPL-2.0-only */
ARM: imx6: disable deeper idle states when FEC is active w/o HW workaround The i.MX6 Q/DL has an erratum (ERR006687) that prevents the FEC from waking the CPUs when they are in wait(unclocked) state. As the hardware workaround isn't applicable to all boards, disable the deeper idle state when the workaround isn't present and the FEC is in use. This allows to safely run a kernel with CPUidle enabled on all i.MX6 boards. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: David S. Miller <davem@davemloft.net> (for network changes) Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-04 00:31:19 +08:00
/*
* Copyright 2016 Pengutronix, <kernel@pengutronix.de>
*/
#ifndef __SOC_IMX_CPUIDLE_H__
#define __SOC_IMX_CPUIDLE_H__
#if defined(CONFIG_CPU_IDLE) && defined(CONFIG_SOC_IMX6Q)
void imx6q_cpuidle_fec_irqs_used(void);
void imx6q_cpuidle_fec_irqs_unused(void);
#else
ARM: imx6: fix static declaration in include/soc/imx/cpuidle.h If both CONFIG_CPU_IDLE or CONFIG_SOC_IMX6Q are not set then the imx6q_cpuidle_fec_irqs_used() and other functions should be marked static inline to avoid the following warnings whilst building drivers/net/ethernet/freescale: include/soc/imx/cpuidle.h:21:6: warning: symbol 'imx6q_cpuidle_fec_irqs_used' was not declared. Should it be static? include/soc/imx/cpuidle.h:22:6: warning: symbol 'imx6q_cpuidle_fec_irqs_unused' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-17 22:51:41 +08:00
static inline void imx6q_cpuidle_fec_irqs_used(void) { }
static inline void imx6q_cpuidle_fec_irqs_unused(void) { }
ARM: imx6: disable deeper idle states when FEC is active w/o HW workaround The i.MX6 Q/DL has an erratum (ERR006687) that prevents the FEC from waking the CPUs when they are in wait(unclocked) state. As the hardware workaround isn't applicable to all boards, disable the deeper idle state when the workaround isn't present and the FEC is in use. This allows to safely run a kernel with CPUidle enabled on all i.MX6 boards. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: David S. Miller <davem@davemloft.net> (for network changes) Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-04 00:31:19 +08:00
#endif
#endif /* __SOC_IMX_CPUIDLE_H__ */