From: Rasmus Villemoes Date: Thu, 28 Nov 2019 14:55:17 +0000 (+0100) Subject: soc: fsl: qe: move calls of qe_ic_init out of arch/powerpc/ X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4e0e161d3cc403823159b2c15b6f4c9f642fd1d3;p=linux.git soc: fsl: qe: move calls of qe_ic_init out of arch/powerpc/ Having to call qe_ic_init() from platform-specific code makes it awkward to allow building the QE drivers for ARM. It's also a needless duplication of code, and slightly error-prone: Instead of the caller needing to know the details of whether the QUICC Engine High and QUICC Engine Low are actually the same interrupt (see e.g. the machine_is() in mpc85xx_mds_qeic_init), just let the init function choose the appropriate handlers after it has parsed the DT and figured it out. If the two interrupts are distinct, use separate handlers, otherwise use the handler which first checks the CHIVEC register (for the high priority interrupts), then the CIVEC. All existing callers pass 0 for flags, so continue to do that from the new single caller. Later cleanups will remove that argument from qe_ic_init and simplify the body, as well as make qe_ic_init into a proper init function for an IRQCHIP_DECLARE, eliminating the need to manually look up the fsl,qe-ic node. Reviewed-by: Timur Tabi Signed-off-by: Rasmus Villemoes Signed-off-by: Li Yang --- diff --git a/arch/powerpc/platforms/83xx/km83xx.c b/arch/powerpc/platforms/83xx/km83xx.c index 273145aed90a1..5c6227f7bc378 100644 --- a/arch/powerpc/platforms/83xx/km83xx.c +++ b/arch/powerpc/platforms/83xx/km83xx.c @@ -34,7 +34,6 @@ #include #include #include -#include #include "mpc83xx.h" diff --git a/arch/powerpc/platforms/83xx/misc.c b/arch/powerpc/platforms/83xx/misc.c index 02e4341fa0d80..41a9aed9f4ae8 100644 --- a/arch/powerpc/platforms/83xx/misc.c +++ b/arch/powerpc/platforms/83xx/misc.c @@ -14,7 +14,6 @@ #include #include #include -#include #include #include @@ -92,24 +91,9 @@ 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_mpic, qe_ic_cascade_high_mpic); - 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/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c index b428835e5919e..1c73af104d190 100644 --- a/arch/powerpc/platforms/83xx/mpc832x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c @@ -33,7 +33,6 @@ #include #include #include -#include #include "mpc83xx.h" diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c index 4588ce632484e..87f68ca062557 100644 --- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c +++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include diff --git a/arch/powerpc/platforms/83xx/mpc836x_mds.c b/arch/powerpc/platforms/83xx/mpc836x_mds.c index 240a26d88b07d..1264fac54c30c 100644 --- a/arch/powerpc/platforms/83xx/mpc836x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc836x_mds.c @@ -40,7 +40,6 @@ #include #include #include -#include #include "mpc83xx.h" diff --git a/arch/powerpc/platforms/83xx/mpc836x_rdk.c b/arch/powerpc/platforms/83xx/mpc836x_rdk.c index 9923059cb111c..b7119e443920a 100644 --- a/arch/powerpc/platforms/83xx/mpc836x_rdk.c +++ b/arch/powerpc/platforms/83xx/mpc836x_rdk.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h index 4591456233342..d343f6ce2599e 100644 --- a/arch/powerpc/platforms/83xx/mpc83xx.h +++ b/arch/powerpc/platforms/83xx/mpc83xx.h @@ -73,10 +73,8 @@ extern int mpc834x_usb_cfg(void); extern int mpc831x_usb_cfg(void); extern void mpc83xx_ipic_init_IRQ(void); #ifdef CONFIG_QUICC_ENGINE -extern void mpc83xx_qe_init_IRQ(void); extern void mpc83xx_ipic_and_qe_init_IRQ(void); #else -static inline void __init mpc83xx_qe_init_IRQ(void) {} #define mpc83xx_ipic_and_qe_init_IRQ mpc83xx_ipic_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 a328a741b4572..27ac38f7e1a9b 100644 --- a/arch/powerpc/platforms/85xx/corenet_generic.c +++ b/arch/powerpc/platforms/85xx/corenet_generic.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include @@ -38,8 +37,6 @@ 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; @@ -47,13 +44,6 @@ 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 381a6ac8cb4bf..7759eca7d535a 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -44,7 +44,6 @@ #include #include #include -#include #include #include #include "smp.h" @@ -268,33 +267,8 @@ static void __init mpc85xx_mds_qe_init(void) } } -static void __init mpc85xx_mds_qeic_init(void) -{ - struct device_node *np; - - np = of_find_compatible_node(NULL, NULL, "fsl,qe"); - if (!of_device_is_available(np)) { - 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) { } -static void __init mpc85xx_mds_qeic_init(void) { } #endif /* CONFIG_QUICC_ENGINE */ static void __init mpc85xx_mds_setup_arch(void) @@ -364,7 +338,6 @@ static void __init mpc85xx_mds_pic_init(void) BUG_ON(mpic == NULL); mpic_init(mpic); - mpc85xx_mds_qeic_init(); } static int __init mpc85xx_mds_probe(void) diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c index 7f9a84f857664..80a80174768c3 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include @@ -44,10 +43,6 @@ 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 | @@ -62,18 +57,6 @@ 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 6c3c0cdaee9ad..9abb1e9f73c40 100644 --- a/arch/powerpc/platforms/85xx/twr_p102x.c +++ b/arch/powerpc/platforms/85xx/twr_p102x.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include @@ -31,26 +30,12 @@ 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/soc/fsl/qe/qe_ic.c b/drivers/soc/fsl/qe/qe_ic.c index f170926ce4d16..a062efac398bc 100644 --- a/drivers/soc/fsl/qe/qe_ic.c +++ b/drivers/soc/fsl/qe/qe_ic.c @@ -314,10 +314,10 @@ unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic) return irq_linear_revmap(qe_ic->irqhost, irq); } -void __init qe_ic_init(struct device_node *node, unsigned int flags, - void (*low_handler)(struct irq_desc *desc), - void (*high_handler)(struct irq_desc *desc)) +static void __init qe_ic_init(struct device_node *node, unsigned int flags) { + void (*low_handler)(struct irq_desc *desc); + void (*high_handler)(struct irq_desc *desc); struct qe_ic *qe_ic; struct resource res; u32 temp = 0, ret; @@ -349,6 +349,13 @@ void __init qe_ic_init(struct device_node *node, unsigned int flags, kfree(qe_ic); return; } + if (qe_ic->virq_high != qe_ic->virq_low) { + low_handler = qe_ic_cascade_low_mpic; + high_handler = qe_ic_cascade_high_mpic; + } else { + low_handler = qe_ic_cascade_muxed_mpic; + high_handler = NULL; + } /* default priority scheme is grouped. If spread mode is */ /* required, configure cicr accordingly. */ @@ -381,6 +388,22 @@ void __init qe_ic_init(struct device_node *node, unsigned int flags, } } +static int __init qe_ic_of_init(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 -ENODEV; + } + qe_ic_init(np, 0); + of_node_put(np); + return 0; +} +subsys_initcall(qe_ic_of_init); + void qe_ic_set_highest_priority(unsigned int virq, int high) { struct qe_ic *qe_ic = qe_ic_from_irq(virq); diff --git a/include/soc/fsl/qe/qe_ic.h b/include/soc/fsl/qe/qe_ic.h index bfaa233d83280..a47a0d26acbd9 100644 --- a/include/soc/fsl/qe/qe_ic.h +++ b/include/soc/fsl/qe/qe_ic.h @@ -54,16 +54,9 @@ enum qe_ic_grp_id { }; #ifdef CONFIG_QUICC_ENGINE -void qe_ic_init(struct device_node *node, unsigned int flags, - void (*low_handler)(struct irq_desc *desc), - void (*high_handler)(struct irq_desc *desc)); unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic); unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic); #else -static inline void qe_ic_init(struct device_node *node, unsigned int flags, - void (*low_handler)(struct irq_desc *desc), - void (*high_handler)(struct irq_desc *desc)) -{} static inline unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic) { return 0; } static inline unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic)