irq_domain/powerpc: Replace custom xlate functions with library functions

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.

v5: - Remove tsi108 changes from patch

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Milton Miller <miltonm@bga.com>
Tested-by: Olof Johansson <olof@lixom.net>

diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 46a5f32..92afc38 100644 (file)
--- 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 const 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 0c6fe0b..cb565bf 100644 (file)
--- 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 const 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 8c9fc9c..d3be961 100644 (file)
--- 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 const 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 (file)
--- 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 (file)
--- 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/uic.c b/arch/powerpc/sysdev/uic.c
index 84e59c9..9203393 100644 (file)
--- 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/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 149d987..e6568c1 100644 (file)
--- 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 = {