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e2c1b0ff38
Using IRQCHIP_DECLARE lets fw_devlink know that it should not wait for
these interrupt controllers to be populated as struct devices. Without
this change, fw_devlink=on will make the consumers of these interrupt
controllers wait for the struct device to be added and thereby block the
consumers' probes forever. Converting to IRQCHIP_DECLARE addresses boot
issues on imx25 with fw_devlink=on that were reported by Martin.
This also removes a lot of boilerplate code.
Fixes: e590474768 ("driver core: Set fw_devlink=on by default")
Reported-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: Martin Kaiser <martin@kaiser.cx>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright 2012 Sascha Hauer, Pengutronix
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*/
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/of_address.h>
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#include <linux/of_irq.h>
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#include <linux/of_platform.h>
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#include <linux/mm.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/time.h>
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#include "common.h"
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#include "hardware.h"
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#include "mx27.h"
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/* MX27 memory map definition */
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static struct map_desc imx27_io_desc[] __initdata = {
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/*
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* this fixed mapping covers:
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* - AIPI1
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* - AIPI2
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* - AITC
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* - ROM Patch
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* - and some reserved space
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*/
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imx_map_entry(MX27, AIPI, MT_DEVICE),
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/*
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* this fixed mapping covers:
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* - CSI
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* - ATA
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*/
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imx_map_entry(MX27, SAHB1, MT_DEVICE),
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/*
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* this fixed mapping covers:
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* - EMI
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*/
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imx_map_entry(MX27, X_MEMC, MT_DEVICE),
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};
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/*
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* Initialize the memory map. It is called during the
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* system startup to create static physical to virtual
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* memory map for the IO modules.
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*/
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static void __init mx27_map_io(void)
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{
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iotable_init(imx27_io_desc, ARRAY_SIZE(imx27_io_desc));
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}
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static void __init imx27_init_early(void)
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{
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mxc_set_cpu_type(MXC_CPU_MX27);
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}
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static const char * const imx27_dt_board_compat[] __initconst = {
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"fsl,imx27",
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NULL
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};
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DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)")
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.map_io = mx27_map_io,
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.init_early = imx27_init_early,
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.init_late = imx27_pm_init,
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.dt_compat = imx27_dt_board_compat,
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MACHINE_END
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