[RFC 2/2] irqdomain/powerpc: Replace custom xlate functions with library functions
Grant Likely
grant.likely at secretlab.ca
Wed Jan 25 11:18:39 EST 2012
This patch converts a number of the powerpc drivers to use the common library
of irq_domain xlate functions, dropping a bunch of lines in the process.
Signed-off-by: Grant Likely <grant.likely at secretlab.ca>
Cc: Rob Herring <rob.herring at calxeda.com>
Cc: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
This builds on top of my irq_domain series and will be included with it when
I post v3. **completely untested**. I will do some due diligence before I
post it again. Ben, if you're okay with this approach, then I'll make it
part of the irq_domain series.
g.
arch/powerpc/platforms/86xx/gef_pic.c | 17 ++---------------
arch/powerpc/platforms/powermac/pic.c | 13 +------------
arch/powerpc/platforms/wsp/opb_pic.c | 13 +------------
arch/powerpc/sysdev/cpm2_pic.c | 14 +-------------
arch/powerpc/sysdev/ipic.c | 18 +-----------------
arch/powerpc/sysdev/qe_lib/qe_ic.c | 15 +--------------
arch/powerpc/sysdev/tsi108_pci.c | 12 ++----------
arch/powerpc/sysdev/uic.c | 14 +-------------
arch/powerpc/sysdev/xics/xics-common.c | 24 ++++++++----------------
drivers/gpio/gpio-mpc8xxx.c | 17 +----------------
10 files changed, 19 insertions(+), 138 deletions(-)
diff --git a/arch/powerpc/platforms/86xx/gef_pic.c b/arch/powerpc/platforms/86xx/gef_pic.c
index 126a94b..de614b1 100644
--- a/arch/powerpc/platforms/86xx/gef_pic.c
+++ b/arch/powerpc/platforms/86xx/gef_pic.c
@@ -163,23 +163,9 @@ static int gef_pic_host_map(struct irq_domain *h, unsigned int virq,
return 0;
}
-static int gef_pic_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-{
-
- *out_hwirq = intspec[0];
- if (intsize > 1)
- *out_flags = intspec[1];
- else
- *out_flags = IRQ_TYPE_LEVEL_HIGH;
-
- return 0;
-}
-
static struct irq_domain_ops gef_pic_host_ops = {
.map = gef_pic_host_map,
- .xlate = gef_pic_host_xlate,
+ .xlate = irq_domain_xlate_onetwocell,
};
@@ -216,6 +202,7 @@ void __init gef_pic_init(struct device_node *np)
&gef_pic_host_ops, NULL);
if (gef_pic_irq_host == NULL)
return;
+ gef_pic_irq_host->xlate_default_type = IRQ_TYPE_LEVEL_HIGH;
/* Chain with parent controller */
irq_set_chained_handler(gef_pic_cascade_irq, gef_pic_cascade);
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 646fdf3..576cb32 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -288,21 +288,10 @@ static int pmac_pic_host_map(struct irq_domain *h, unsigned int virq,
return 0;
}
-static int pmac_pic_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq,
- unsigned int *out_flags)
-
-{
- *out_flags = IRQ_TYPE_NONE;
- *out_hwirq = *intspec;
- return 0;
-}
-
static struct irq_domain_ops pmac_pic_host_ops = {
.match = pmac_pic_host_match,
.map = pmac_pic_host_map,
- .xlate = pmac_pic_host_xlate,
+ .xlate = irq_domain_xlate_onecell;
};
static void __init pmac_pic_probe_oldstyle(void)
diff --git a/arch/powerpc/platforms/wsp/opb_pic.c b/arch/powerpc/platforms/wsp/opb_pic.c
index 4837515..8bd4136 100644
--- a/arch/powerpc/platforms/wsp/opb_pic.c
+++ b/arch/powerpc/platforms/wsp/opb_pic.c
@@ -196,20 +196,9 @@ static int opb_host_map(struct irq_domain *host, unsigned int virq,
return 0;
}
-static int opb_host_xlate(struct irq_domain *host, struct device_node *dn,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_type)
-{
- /* Interrupt size must == 2 */
- BUG_ON(intsize != 2);
- *out_hwirq = intspec[0];
- *out_type = intspec[1];
- return 0;
-}
-
static struct irq_domain_ops opb_host_ops = {
.map = opb_host_map,
- .xlate = opb_host_xlate,
+ .xlate = irq_domain_xlate_twocell,
};
irqreturn_t opb_irq_handler(int irq, void *private)
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index b364332..1430201 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -224,21 +224,9 @@ static int cpm2_pic_host_map(struct irq_domain *h, unsigned int virq,
return 0;
}
-static int cpm2_pic_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-{
- *out_hwirq = intspec[0];
- if (intsize > 1)
- *out_flags = intspec[1];
- else
- *out_flags = IRQ_TYPE_NONE;
- return 0;
-}
-
static struct irq_domain_ops cpm2_pic_host_ops = {
.map = cpm2_pic_host_map,
- .xlate = cpm2_pic_host_xlate,
+ .xlate = irq_domain_xlate_onetwocell,
};
void cpm2_pic_init(struct device_node *node)
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 0eaaa01..b50f978 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -692,26 +692,10 @@ static int ipic_host_map(struct irq_domain *h, unsigned int virq,
return 0;
}
-static int ipic_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-
-{
- /* interrupt sense values coming from the device tree equal either
- * LEVEL_LOW (low assertion) or EDGE_FALLING (high-to-low change)
- */
- *out_hwirq = intspec[0];
- if (intsize > 1)
- *out_flags = intspec[1];
- else
- *out_flags = IRQ_TYPE_NONE;
- return 0;
-}
-
static struct irq_domain_ops ipic_host_ops = {
.match = ipic_host_match,
.map = ipic_host_map,
- .xlate = ipic_host_xlate,
+ .xlate = irq_domain_xlate_onetwocell,
};
struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index e9b3d5c..2fba6ef 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -272,23 +272,10 @@ static int qe_ic_host_map(struct irq_domain *h, unsigned int virq,
return 0;
}
-static int qe_ic_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 * intspec, unsigned int intsize,
- irq_hw_number_t * out_hwirq,
- unsigned int *out_flags)
-{
- *out_hwirq = intspec[0];
- if (intsize > 1)
- *out_flags = intspec[1];
- else
- *out_flags = IRQ_TYPE_NONE;
- return 0;
-}
-
static struct irq_domain_ops qe_ic_host_ops = {
.match = qe_ic_host_match,
.map = qe_ic_host_map,
- .xlate = qe_ic_host_xlate,
+ .xlate = irq_domain_xlate_onetwocell,
};
/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 188012c..4085ada 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -376,15 +376,6 @@ static struct irq_chip tsi108_pci_irq = {
.irq_unmask = tsi108_pci_irq_unmask,
};
-static int pci_irq_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-{
- *out_hwirq = intspec[0];
- *out_flags = IRQ_TYPE_LEVEL_HIGH;
- return 0;
-}
-
static int pci_irq_host_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{ unsigned int irq;
@@ -399,7 +390,7 @@ static int pci_irq_host_map(struct irq_domain *h, unsigned int virq,
static struct irq_domain_ops pci_irq_domain_ops = {
.map = pci_irq_host_map,
- .xlate = pci_irq_host_xlate,
+ .xlate = irq_domain_xlate_onecell,
};
/*
@@ -424,6 +415,7 @@ void __init tsi108_pci_int_init(struct device_node *node)
printk(KERN_ERR "pci_irq_host: failed to allocate irq domain!\n");
return;
}
+ pci_irq_host->xlate_type = IRQ_TYPE_LEVEL_HIGH;
init_pci_source();
}
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index 84e59c9..9203393 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -190,21 +190,9 @@ static int uic_host_map(struct irq_domain *h, unsigned int virq,
return 0;
}
-static int uic_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_type)
-
-{
- /* UIC intspecs must have 2 cells */
- BUG_ON(intsize != 2);
- *out_hwirq = intspec[0];
- *out_type = intspec[1];
- return 0;
-}
-
static struct irq_domain_ops uic_host_ops = {
.map = uic_host_map,
- .xlate = uic_host_xlate,
+ .xlate = irq_domain_xlate_twocell,
};
void uic_irq_cascade(unsigned int virq, struct irq_desc *desc)
diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index ea5e204..754d22a 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -351,31 +351,23 @@ static int xics_host_map(struct irq_domain *h, unsigned int virq,
return -EINVAL;
}
-static int xics_host_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-
-{
- /* Current xics implementation translates everything
- * to level. It is not technically right for MSIs but this
- * is irrelevant at this point. We might get smarter in the future
- */
- *out_hwirq = intspec[0];
- *out_flags = IRQ_TYPE_LEVEL_LOW;
-
- return 0;
-}
-
static struct irq_domain_ops xics_host_ops = {
.match = xics_host_match,
.map = xics_host_map,
- .xlate = xics_host_xlate,
+ .xlate = irq_domain_xlate_onecell,
};
static void __init xics_init_host(void)
{
xics_host = irq_domain_add_tree(NULL, &xics_host_ops, NULL);
BUG_ON(xics_host == NULL);
+
+ /*
+ * Current xics implementation translates everything to level. It is
+ * not technically right for MSIs but this is irrelevant at this point.
+ * We might get smarter in the future
+ */
+ xics_host->xlate_type = IRQ_TYPE_LEVEL_LOW;
irq_set_default_host(xics_host);
}
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 149d987..e6568c1 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -296,24 +296,9 @@ static int mpc8xxx_gpio_irq_map(struct irq_domain *h, unsigned int virq,
return 0;
}
-static int mpc8xxx_gpio_irq_xlate(struct irq_domain *h, struct device_node *ct,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq,
- unsigned int *out_flags)
-
-{
- /* interrupt sense values coming from the device tree equal either
- * EDGE_FALLING or EDGE_BOTH
- */
- *out_hwirq = intspec[0];
- *out_flags = intspec[1];
-
- return 0;
-}
-
static struct irq_domain_ops mpc8xxx_gpio_irq_ops = {
.map = mpc8xxx_gpio_irq_map,
- .xlate = mpc8xxx_gpio_irq_xlate,
+ .xlate = irq_domain_xlate_twocell,
};
static struct of_device_id mpc8xxx_gpio_ids[] __initdata = {
--
1.7.5.4
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