[PATCH] MFD: ab8500: pass AB8500 IRQ to debugfs code by resource

From: Linus Walleij
Date: Thu Apr 11 2013 - 05:09:53 EST


From: Linus Walleij <linus.walleij@xxxxxxxxxx>

The AB8500 debug code which was merged in parallell with the
multiplatform work incidentally introduced a new instance using
the <mach/irqs.h> header which is now deleted, causing this
build regression:

drivers/mfd/ab8500-debugfs.c:95:23:
fatal error: mach/irqs.h: No such file or directory
compilation terminated.
make[4]: *** [drivers/mfd/ab8500-debugfs.o] Error 1

The code most certainly never worked with device tree either
since that does not rely on this kind of hard-coded interrupt
numbers.

Fix the problem at the root by passing it as a named resource
from the ab8500-core driver.

Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
Sam this would have to go into the v3.10-targetted stuff...
Either immediately before you send it upstream or as a fixup.
---
drivers/mfd/ab8500-core.c | 11 +++++++++++
drivers/mfd/ab8500-debugfs.c | 14 ++++++++++----
2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 8e8a016..dd72914 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -868,6 +868,11 @@ static struct resource ab8500_chargalg_resources[] = {};
#ifdef CONFIG_DEBUG_FS
static struct resource ab8500_debug_resources[] = {
{
+ .name = "IRQ_AB8500",
+ /* Number will be filled in */
+ .flags = IORESOURCE_IRQ,
+ },
+ {
.name = "IRQ_FIRST",
.start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
.end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
@@ -1712,6 +1717,12 @@ static int ab8500_probe(struct platform_device *pdev)
if (ret)
return ret;

+#if CONFIG_DEBUG_FS
+ /* Pass to debugfs */
+ ab8500_debug_resources[0].start = ab8500->irq;
+ ab8500_debug_resources[0].end = ab8500->irq;
+#endif
+
if (is_ab9540(ab8500))
ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
ARRAY_SIZE(ab9540_devs), NULL,
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index b88bbbc..bd39146 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -91,12 +91,10 @@
#include <linux/ctype.h>
#endif

-/* TODO: this file should not reference IRQ_DB8500_AB8500! */
-#include <mach/irqs.h>
-
static u32 debug_bank;
static u32 debug_address;

+static int irq_ab8500;
static int irq_first;
static int irq_last;
static u32 *irq_count;
@@ -1589,7 +1587,7 @@ void ab8500_debug_register_interrupt(int line)
{
if (line < num_interrupt_lines) {
num_interrupts[line]++;
- if (suspend_test_wake_cause_interrupt_is_mine(IRQ_DB8500_AB8500))
+ if (suspend_test_wake_cause_interrupt_is_mine(irq_ab8500))
num_wake_interrupts[line]++;
}
}
@@ -2959,6 +2957,14 @@ static int ab8500_debug_probe(struct platform_device *plf)
if (!event_name)
goto out_freedev_attr;

+ irq_ab8500 = platform_get_irq_byname(plf, "IRQ_AB8500");
+ if (irq_ab8500 < 0) {
+ dev_err(&plf->dev, "AB8500 irq not found, err %d\n",
+ irq_first);
+ ret = irq_ab8500;
+ goto out_freeevent_name;
+ }
+
irq_first = platform_get_irq_byname(plf, "IRQ_FIRST");
if (irq_first < 0) {
dev_err(&plf->dev, "First irq not found, err %d\n",
--
1.7.11.3

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