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The mach/hardware.h is included in lots of places, and it provides three different things on pxa: - the cpu_is_pxa* macros - an indirect inclusion of mach/addr-map.h - the __REG() and io_pv2() helper macros Split it up into separate <linux/soc/pxa/cpu.h> and mach/pxa-regs.h headers, then change all the files that use mach/hardware.h to include the exact set of those three headers that they actually need, allowing for further more targeted cleanup. linux/soc/pxa/cpu.h can remain permanently exported and is now in a global location along with similar headers. pxa-regs.h and addr-map.h are only used in a very small number of drivers now and can be moved to arch/arm/mach-pxa/ directly when those drivers are to pass the necessary data as resources. Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guenter Roeck <linux@roeck-us.net> Acked-by: Mark Brown <broonie@kernel.org> Cc: linux-clk@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: linux-leds@vger.kernel.org Cc: linux-mmc@vger.kernel.org Cc: linux-mtd@lists.infradead.org Cc: linux-rtc@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Cc: alsa-devel@alsa-project.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* linux/arch/arm/mach-pxa/mfp.c
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*
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* PXA3xx Multi-Function Pin Support
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*
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* Copyright (C) 2007 Marvell Internation Ltd.
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*
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* 2007-08-21: eric miao <eric.miao@marvell.com>
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* initial version
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/syscore_ops.h>
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#include "mfp-pxa3xx.h"
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#include <mach/pxa3xx-regs.h>
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#ifdef CONFIG_PM
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/*
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* Configure the MFPs appropriately for suspend/resume.
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* FIXME: this should probably depend on which system state we're
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* entering - for instance, we might not want to place MFP pins in
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* a pull-down mode if they're an active low chip select, and we're
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* just entering standby.
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*/
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static int pxa3xx_mfp_suspend(void)
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{
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mfp_config_lpm();
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return 0;
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}
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static void pxa3xx_mfp_resume(void)
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{
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mfp_config_run();
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/* clear RDH bit when MFP settings are restored
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*
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* NOTE: the last 3 bits DxS are write-1-to-clear so carefully
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* preserve them here in case they will be referenced later
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*/
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ASCR &= ~(ASCR_RDH | ASCR_D1S | ASCR_D2S | ASCR_D3S);
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}
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#else
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#define pxa3xx_mfp_suspend NULL
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#define pxa3xx_mfp_resume NULL
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#endif
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struct syscore_ops pxa3xx_mfp_syscore_ops = {
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.suspend = pxa3xx_mfp_suspend,
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.resume = pxa3xx_mfp_resume,
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};
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