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irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse

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It has become obvious that switching a number of irqchip drivers
to being platform drivers without considering the platform was a
mistake. We have multiple reports of end-point drivers not
probing because the irqchip driver isn't there yet, breaking
the expectations of the users.

This patch reverts:

920ecb8c35 ("irqchip/mtk-cirq: Convert to a platform driver")
f97dbf48ca ("irqchip/mtk-sysirq: Convert to a platform driver")
5be57099d4 ("irqchip/qcom-pdc: Switch to using IRQCHIP_PLATFORM_DRIVER helper macros")
95bf9305d2 ("irqchip/qcom-pdc: Allow QCOM_PDC to be loadable as a permanent module")

and leave QCOM PDC, MTK sysrq and cirq drivers as built-in, special purpose
drivers for the time being until we have worked out a better solution.

Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reported-by: Frank Wunderlich <linux@fw-web.de>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/93debe6a0308b66d3f307af67ba7ec2c@kernel.org
This commit is contained in:
Marc Zyngier 2020-08-25 10:38:39 +01:00
parent 7828a3ef86
commit a150dac5a8
4 changed files with 4 additions and 14 deletions
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2
drivers/irqchip/Kconfig
View File

@ -425,7 +425,7 @@ config GOLDFISH_PIC
for Goldfish based virtual platforms.
config QCOM_PDC
tristate "QCOM PDC"
bool "QCOM PDC"
depends on ARCH_QCOM
select IRQ_DOMAIN_HIERARCHY
help

4
drivers/irqchip/irq-mtk-cirq.c
View File

@ -295,6 +295,4 @@ static int __init mtk_cirq_of_init(struct device_node *node,
return ret;
}
IRQCHIP_PLATFORM_DRIVER_BEGIN(mtk_cirq)
IRQCHIP_MATCH("mediatek,mtk-cirq", mtk_cirq_of_init)
IRQCHIP_PLATFORM_DRIVER_END(mtk_cirq)
IRQCHIP_DECLARE(mtk_cirq, "mediatek,mtk-cirq", mtk_cirq_of_init);

4
drivers/irqchip/irq-mtk-sysirq.c
View File

@ -231,6 +231,4 @@ static int __init mtk_sysirq_of_init(struct device_node *node,
kfree(chip_data);
return ret;
}
IRQCHIP_PLATFORM_DRIVER_BEGIN(mtk_sysirq)
IRQCHIP_MATCH("mediatek,mt6577-sysirq", mtk_sysirq_of_init)
IRQCHIP_PLATFORM_DRIVER_END(mtk_sysirq)
IRQCHIP_DECLARE(mtk_sysirq, "mediatek,mt6577-sysirq", mtk_sysirq_of_init);

8
drivers/irqchip/qcom-pdc.c
View File

@ -11,11 +11,9 @@
#include <linux/irqdomain.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/soc/qcom/irq.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
@ -432,8 +430,4 @@ static int qcom_pdc_init(struct device_node *node, struct device_node *parent)
return ret;
}
IRQCHIP_PLATFORM_DRIVER_BEGIN(qcom_pdc)
IRQCHIP_MATCH("qcom,pdc", qcom_pdc_init)
IRQCHIP_PLATFORM_DRIVER_END(qcom_pdc)
MODULE_DESCRIPTION("Qualcomm Technologies, Inc. Power Domain Controller");
MODULE_LICENSE("GPL v2");
IRQCHIP_DECLARE(qcom_pdc, "qcom,pdc", qcom_pdc_init);