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Message-ID: <20171101013627.17437-2-qiang.zhao@nxp.com>
Date: Wed, 1 Nov 2017 09:36:24 +0800
From: Zhao Qiang <qiang.zhao@....com>
To: <tglx@...utronix.de>, <jason@...edaemon.net>,
<marc.zyngier@....com>
CC: <linux-kernel@...r.kernel.org>, Zhao Qiang <qiang.zhao@....com>
Subject: [Patch v11 1/4] irqchip/qeic: merge qeic init code from platforms to a common function
The codes of qe_ic init from a variety of platforms are redundant,
merge them to a common function and put it to irqchip/irq-qeic.c
For non-p1021_mds mpc85xx_mds boards, use "qe_ic_init(np, 0,
qe_ic_cascade_low_mpic, qe_ic_cascade_high_mpic);" instead of
"qe_ic_init(np, 0, qe_ic_cascade_muxed_mpic, NULL);".
qe_ic_cascade_muxed_mpic was used for boards has the same interrupt
number for low interrupt and high interrupt, qe_ic_init has checked
if "low interrupt == high interrupt"
Signed-off-by: Zhao Qiang <qiang.zhao@....com>
---
arch/powerpc/platforms/83xx/misc.c | 15 ---------------
arch/powerpc/platforms/85xx/corenet_generic.c | 9 ---------
arch/powerpc/platforms/85xx/mpc85xx_mds.c | 14 --------------
arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 16 ----------------
arch/powerpc/platforms/85xx/twr_p102x.c | 14 --------------
drivers/irqchip/irq-qeic.c | 13 +++++++++++++
6 files changed, 13 insertions(+), 68 deletions(-)
diff --git a/arch/powerpc/platforms/83xx/misc.c b/arch/powerpc/platforms/83xx/misc.c
index d75c9816a5c9..c09a13532c89 100644
--- a/arch/powerpc/platforms/83xx/misc.c
+++ b/arch/powerpc/platforms/83xx/misc.c
@@ -93,24 +93,9 @@ void __init mpc83xx_ipic_init_IRQ(void)
}
#ifdef CONFIG_QUICC_ENGINE
-void __init mpc83xx_qe_init_IRQ(void)
-{
- struct device_node *np;
-
- np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
- if (!np) {
- np = of_find_node_by_type(NULL, "qeic");
- if (!np)
- return;
- }
- qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
- of_node_put(np);
-}
-
void __init mpc83xx_ipic_and_qe_init_IRQ(void)
{
mpc83xx_ipic_init_IRQ();
- mpc83xx_qe_init_IRQ();
}
#endif /* CONFIG_QUICC_ENGINE */
diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c
index ac191a7a1337..1b385acbf4dd 100644
--- a/arch/powerpc/platforms/85xx/corenet_generic.c
+++ b/arch/powerpc/platforms/85xx/corenet_generic.c
@@ -41,8 +41,6 @@ void __init corenet_gen_pic_init(void)
unsigned int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU |
MPIC_NO_RESET;
- struct device_node *np;
-
if (ppc_md.get_irq == mpic_get_coreint_irq)
flags |= MPIC_ENABLE_COREINT;
@@ -50,13 +48,6 @@ void __init corenet_gen_pic_init(void)
BUG_ON(mpic == NULL);
mpic_init(mpic);
-
- np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
- if (np) {
- qe_ic_init(np, 0, qe_ic_cascade_low_mpic,
- qe_ic_cascade_high_mpic);
- of_node_put(np);
- }
}
/*
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index d7e440e6dba3..06f34a99152e 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -283,20 +283,6 @@ static void __init mpc85xx_mds_qeic_init(void)
of_node_put(np);
return;
}
-
- np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
- if (!np) {
- np = of_find_node_by_type(NULL, "qeic");
- if (!np)
- return;
- }
-
- if (machine_is(p1021_mds))
- qe_ic_init(np, 0, qe_ic_cascade_low_mpic,
- qe_ic_cascade_high_mpic);
- else
- qe_ic_init(np, 0, qe_ic_cascade_muxed_mpic, NULL);
- of_node_put(np);
}
#else
static void __init mpc85xx_mds_qe_init(void) { }
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index 10069503e39f..000d385933af 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
@@ -48,10 +48,6 @@ void __init mpc85xx_rdb_pic_init(void)
{
struct mpic *mpic;
-#ifdef CONFIG_QUICC_ENGINE
- struct device_node *np;
-#endif
-
if (of_machine_is_compatible("fsl,MPC85XXRDB-CAMP")) {
mpic = mpic_alloc(NULL, 0, MPIC_NO_RESET |
MPIC_BIG_ENDIAN |
@@ -66,18 +62,6 @@ void __init mpc85xx_rdb_pic_init(void)
BUG_ON(mpic == NULL);
mpic_init(mpic);
-
-#ifdef CONFIG_QUICC_ENGINE
- np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
- if (np) {
- qe_ic_init(np, 0, qe_ic_cascade_low_mpic,
- qe_ic_cascade_high_mpic);
- of_node_put(np);
-
- } else
- pr_err("%s: Could not find qe-ic node\n", __func__);
-#endif
-
}
/*
diff --git a/arch/powerpc/platforms/85xx/twr_p102x.c b/arch/powerpc/platforms/85xx/twr_p102x.c
index 360f6253e9ff..6be9b337035a 100644
--- a/arch/powerpc/platforms/85xx/twr_p102x.c
+++ b/arch/powerpc/platforms/85xx/twr_p102x.c
@@ -35,26 +35,12 @@ static void __init twr_p1025_pic_init(void)
{
struct mpic *mpic;
-#ifdef CONFIG_QUICC_ENGINE
- struct device_node *np;
-#endif
-
mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
MPIC_SINGLE_DEST_CPU,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
mpic_init(mpic);
-
-#ifdef CONFIG_QUICC_ENGINE
- np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
- if (np) {
- qe_ic_init(np, 0, qe_ic_cascade_low_mpic,
- qe_ic_cascade_high_mpic);
- of_node_put(np);
- } else
- pr_err("Could not find qe-ic node\n");
-#endif
}
/* ************************************************************************
diff --git a/drivers/irqchip/irq-qeic.c b/drivers/irqchip/irq-qeic.c
index 9b4660cf9267..8287c22d954a 100644
--- a/drivers/irqchip/irq-qeic.c
+++ b/drivers/irqchip/irq-qeic.c
@@ -18,6 +18,7 @@
#include <linux/of_address.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/irqchip.h>
#include <linux/errno.h>
#include <linux/reboot.h>
#include <linux/slab.h>
@@ -598,4 +599,16 @@ static int __init init_qe_ic_sysfs(void)
return 0;
}
+static int __init qeic_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ if (!node)
+ return -ENODEV;
+ qe_ic_init(node, 0, qe_ic_cascade_low_mpic,
+ qe_ic_cascade_high_mpic);
+ of_node_put(node);
+ return 0;
+}
+
+IRQCHIP_DECLARE(qeic, "fsl,qe-ic", qeic_of_init);
subsys_initcall(init_qe_ic_sysfs);
--
2.14.1
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