forked from mirrors/linux
177cf6e52b
All the clocksource drivers's init function are now converted to return an error code. CLOCKSOURCE_OF_DECLARE is no longer used as well as the clksrc-of table. Let's convert back the names: - CLOCKSOURCE_OF_DECLARE_RET => CLOCKSOURCE_OF_DECLARE - clksrc-of-ret => clksrc-of Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> For exynos_mct and samsung_pwm_timer: Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> For arch/arc: Acked-by: Vineet Gupta <vgupta@synopsys.com> For mediatek driver: Acked-by: Matthias Brugger <matthias.bgg@gmail.com> For the Rockchip-part Acked-by: Heiko Stuebner <heiko@sntech.de> For STi : Acked-by: Patrice Chotard <patrice.chotard@st.com> For the mps2-timer.c and versatile.c changes: Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> For the OXNAS part : Acked-by: Neil Armstrong <narmstrong@baylibre.com> For LPC32xx driver: Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com> For Broadcom Kona timer change: Acked-by: Ray Jui <ray.jui@broadcom.com> For Sun4i and Sun5i: Acked-by: Chen-Yu Tsai <wens@csie.org> For Meson6: Acked-by: Carlo Caione <carlo@caione.org> For Keystone: Acked-by: Santosh Shilimkar <ssantosh@kernel.org> For NPS: Acked-by: Noam Camus <noamca@mellanox.com> For bcm2835: Acked-by: Eric Anholt <eric@anholt.net>
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Copyright (C) 2014 ARM Limited
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*/
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#include <linux/clocksource.h>
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#include <linux/io.h>
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#include <linux/of_address.h>
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#include <linux/sched_clock.h>
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#define SYS_24MHZ 0x05c
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static void __iomem *versatile_sys_24mhz;
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static u64 notrace versatile_sys_24mhz_read(void)
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{
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return readl(versatile_sys_24mhz);
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}
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static int __init versatile_sched_clock_init(struct device_node *node)
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{
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void __iomem *base = of_iomap(node, 0);
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if (!base)
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return -ENXIO;
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versatile_sys_24mhz = base + SYS_24MHZ;
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sched_clock_register(versatile_sys_24mhz_read, 32, 24000000);
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return 0;
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}
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CLOCKSOURCE_OF_DECLARE(vexpress, "arm,vexpress-sysreg",
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versatile_sched_clock_init);
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CLOCKSOURCE_OF_DECLARE(versatile, "arm,versatile-sysreg",
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versatile_sched_clock_init);
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