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path: root/include/clocksource/samsung_pwm.h
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/*
 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __CLOCKSOURCE_SAMSUNG_PWM_H
#define __CLOCKSOURCE_SAMSUNG_PWM_H

#include <linux/spinlock.h>

#define SAMSUNG_PWM_NUM		5

/*
 * Following declaration must be in an ifdef due to this symbol being static
 * in pwm-samsung driver if the clocksource driver is not compiled in and the
 * spinlock is not shared between both drivers.
 */
#ifdef CONFIG_CLKSRC_SAMSUNG_PWM
extern spinlock_t samsung_pwm_lock;
#endif

struct samsung_pwm_variant {
	u8 bits;
	u8 div_base;
	u8 tclk_mask;
	u8 output_mask;
	bool has_tint_cstat;
};

void samsung_pwm_clocksource_init(void __iomem *base,
		unsigned int *irqs, struct samsung_pwm_variant *variant);

#endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */
lementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/batman-adv/netlink.c')