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752b5ed5f6
Add Clock Domain support to the Clock Pulse Generator (CPG) Module Stop (MSTP) Clocks driver using the generic PM Domain. This allows to power-manage the module clocks of SoC devices that are part of the CPG/MSTP Clock Domain using Runtime PM, or for system suspend/resume. SoC devices that are part of the CPG/MSTP Clock Domain and can be power-managed through an MSTP clock should be tagged in DT with a proper "power-domains" property. The CPG/MSTP Clock Domain code will scan such devices for clocks that are suitable for power-managing the device, by looking for a clock that is compatible with "renesas,cpg-mstp-clocks". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
36 lines
1.0 KiB
C
36 lines
1.0 KiB
C
/*
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* Copyright 2013 Ideas On Board SPRL
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* Copyright 2013, 2014 Horms Solutions Ltd.
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*
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* Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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* Contact: Simon Horman <horms@verge.net.au>
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*
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __LINUX_CLK_SHMOBILE_H_
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#define __LINUX_CLK_SHMOBILE_H_
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#include <linux/types.h>
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struct device;
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struct device_node;
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struct generic_pm_domain;
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void r8a7778_clocks_init(u32 mode);
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void r8a7779_clocks_init(u32 mode);
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void rcar_gen2_clocks_init(u32 mode);
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#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
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void cpg_mstp_add_clk_domain(struct device_node *np);
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int cpg_mstp_attach_dev(struct generic_pm_domain *domain, struct device *dev);
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void cpg_mstp_detach_dev(struct generic_pm_domain *domain, struct device *dev);
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#else
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static inline void cpg_mstp_add_clk_domain(struct device_node *np) {}
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#endif
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#endif
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