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authorSaravana Kannan <saravanak@google.com>2021-02-04 17:38:46 -0800
committerShawn Guo <shawnguo@kernel.org>2021-03-15 12:21:18 +0800
commite2c1b0ff38c961d49ce34efda48fa45eb1cb5f19 (patch)
tree13a31a5b1fe53ec8fdec74eb4c27e20241f246f9 /arch/arm/mach-imx
parenta38fd8748464831584a19438cbb3082b5a2dab15 (diff)
ARM: imx: avic: Convert to using IRQCHIP_DECLARE
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: e590474768f1 ("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>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r--arch/arm/mach-imx/avic.c16
-rw-r--r--arch/arm/mach-imx/common.h1
-rw-r--r--arch/arm/mach-imx/mach-imx1.c11
-rw-r--r--arch/arm/mach-imx/mach-imx25.c12
-rw-r--r--arch/arm/mach-imx/mach-imx27.c12
-rw-r--r--arch/arm/mach-imx/mach-imx31.c1
-rw-r--r--arch/arm/mach-imx/mach-imx35.c1
-rw-r--r--arch/arm/mach-imx/mm-imx3.c24
8 files changed, 15 insertions, 63 deletions
diff --git a/arch/arm/mach-imx/avic.c b/arch/arm/mach-imx/avic.c
index 322caa21bcb3..21bce4049cec 100644
--- a/arch/arm/mach-imx/avic.c
+++ b/arch/arm/mach-imx/avic.c
@@ -7,6 +7,7 @@
#include <linux/module.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
+#include <linux/irqchip.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
@@ -162,7 +163,7 @@ static void __exception_irq_entry avic_handle_irq(struct pt_regs *regs)
* interrupts. It registers the interrupt enable and disable functions
* to the kernel for each interrupt source.
*/
-void __init mxc_init_irq(void __iomem *irqbase)
+static void __init mxc_init_irq(void __iomem *irqbase)
{
struct device_node *np;
int irq_base;
@@ -220,3 +221,16 @@ void __init mxc_init_irq(void __iomem *irqbase)
printk(KERN_INFO "MXC IRQ initialized\n");
}
+
+static int __init imx_avic_init(struct device_node *node,
+ struct device_node *parent)
+{
+ void __iomem *avic_base;
+
+ avic_base = of_iomap(node, 0);
+ BUG_ON(!avic_base);
+ mxc_init_irq(avic_base);
+ return 0;
+}
+
+IRQCHIP_DECLARE(imx_avic, "fsl,avic", imx_avic_init);
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 2b004cc4f95e..474dedb73bc7 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -22,7 +22,6 @@ void mx35_map_io(void);
void imx21_init_early(void);
void imx31_init_early(void);
void imx35_init_early(void);
-void mxc_init_irq(void __iomem *);
void mx31_init_irq(void);
void mx35_init_irq(void);
void mxc_set_cpu_type(unsigned int type);
diff --git a/arch/arm/mach-imx/mach-imx1.c b/arch/arm/mach-imx/mach-imx1.c
index 32df3b8012f9..8eca92d66a2e 100644
--- a/arch/arm/mach-imx/mach-imx1.c
+++ b/arch/arm/mach-imx/mach-imx1.c
@@ -17,16 +17,6 @@ static void __init imx1_init_early(void)
mxc_set_cpu_type(MXC_CPU_MX1);
}
-static void __init imx1_init_irq(void)
-{
- void __iomem *avic_addr;
-
- avic_addr = ioremap(MX1_AVIC_ADDR, SZ_4K);
- WARN_ON(!avic_addr);
-
- mxc_init_irq(avic_addr);
-}
-
static const char * const imx1_dt_board_compat[] __initconst = {
"fsl,imx1",
NULL
@@ -34,7 +24,6 @@ static const char * const imx1_dt_board_compat[] __initconst = {
DT_MACHINE_START(IMX1_DT, "Freescale i.MX1 (Device Tree Support)")
.init_early = imx1_init_early,
- .init_irq = imx1_init_irq,
.dt_compat = imx1_dt_board_compat,
.restart = mxc_restart,
MACHINE_END
diff --git a/arch/arm/mach-imx/mach-imx25.c b/arch/arm/mach-imx/mach-imx25.c
index 95de48a1aa7d..51927bd08aef 100644
--- a/arch/arm/mach-imx/mach-imx25.c
+++ b/arch/arm/mach-imx/mach-imx25.c
@@ -22,17 +22,6 @@ static void __init imx25_dt_init(void)
imx_aips_allow_unprivileged_access("fsl,imx25-aips");
}
-static void __init mx25_init_irq(void)
-{
- struct device_node *np;
- void __iomem *avic_base;
-
- np = of_find_compatible_node(NULL, NULL, "fsl,avic");
- avic_base = of_iomap(np, 0);
- BUG_ON(!avic_base);
- mxc_init_irq(avic_base);
-}
-
static const char * const imx25_dt_board_compat[] __initconst = {
"fsl,imx25",
NULL
@@ -42,6 +31,5 @@ DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)")
.init_early = imx25_init_early,
.init_machine = imx25_dt_init,
.init_late = imx25_pm_init,
- .init_irq = mx25_init_irq,
.dt_compat = imx25_dt_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-imx/mach-imx27.c b/arch/arm/mach-imx/mach-imx27.c
index 262422a9c196..e325c9468105 100644
--- a/arch/arm/mach-imx/mach-imx27.c
+++ b/arch/arm/mach-imx/mach-imx27.c
@@ -56,17 +56,6 @@ static void __init imx27_init_early(void)
mxc_set_cpu_type(MXC_CPU_MX27);
}
-static void __init mx27_init_irq(void)
-{
- void __iomem *avic_base;
- struct device_node *np;
-
- np = of_find_compatible_node(NULL, NULL, "fsl,avic");
- avic_base = of_iomap(np, 0);
- BUG_ON(!avic_base);
- mxc_init_irq(avic_base);
-}
-
static const char * const imx27_dt_board_compat[] __initconst = {
"fsl,imx27",
NULL
@@ -75,7 +64,6 @@ static const char * const imx27_dt_board_compat[] __initconst = {
DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)")
.map_io = mx27_map_io,
.init_early = imx27_init_early,
- .init_irq = mx27_init_irq,
.init_late = imx27_pm_init,
.dt_compat = imx27_dt_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-imx/mach-imx31.c b/arch/arm/mach-imx/mach-imx31.c
index dc69dfe600df..e9a1092b6093 100644
--- a/arch/arm/mach-imx/mach-imx31.c
+++ b/arch/arm/mach-imx/mach-imx31.c
@@ -14,6 +14,5 @@ static const char * const imx31_dt_board_compat[] __initconst = {
DT_MACHINE_START(IMX31_DT, "Freescale i.MX31 (Device Tree Support)")
.map_io = mx31_map_io,
.init_early = imx31_init_early,
- .init_irq = mx31_init_irq,
.dt_compat = imx31_dt_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-imx/mach-imx35.c b/arch/arm/mach-imx/mach-imx35.c
index ec5c3068715c..0fc08218b77d 100644
--- a/arch/arm/mach-imx/mach-imx35.c
+++ b/arch/arm/mach-imx/mach-imx35.c
@@ -27,6 +27,5 @@ DT_MACHINE_START(IMX35_DT, "Freescale i.MX35 (Device Tree Support)")
.l2c_aux_mask = ~0,
.map_io = mx35_map_io,
.init_early = imx35_init_early,
- .init_irq = mx35_init_irq,
.dt_compat = imx35_dt_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c
index 5056438e5b42..28db97289ee8 100644
--- a/arch/arm/mach-imx/mm-imx3.c
+++ b/arch/arm/mach-imx/mm-imx3.c
@@ -109,18 +109,6 @@ void __init imx31_init_early(void)
mx3_ccm_base = of_iomap(np, 0);
BUG_ON(!mx3_ccm_base);
}
-
-void __init mx31_init_irq(void)
-{
- void __iomem *avic_base;
- struct device_node *np;
-
- np = of_find_compatible_node(NULL, NULL, "fsl,imx31-avic");
- avic_base = of_iomap(np, 0);
- BUG_ON(!avic_base);
-
- mxc_init_irq(avic_base);
-}
#endif /* ifdef CONFIG_SOC_IMX31 */
#ifdef CONFIG_SOC_IMX35
@@ -158,16 +146,4 @@ void __init imx35_init_early(void)
mx3_ccm_base = of_iomap(np, 0);
BUG_ON(!mx3_ccm_base);
}
-
-void __init mx35_init_irq(void)
-{
- void __iomem *avic_base;
- struct device_node *np;
-
- np = of_find_compatible_node(NULL, NULL, "fsl,imx35-avic");
- avic_base = of_iomap(np, 0);
- BUG_ON(!avic_base);
-
- mxc_init_irq(avic_base);
-}
#endif /* ifdef CONFIG_SOC_IMX35 */