diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2013-04-12 17:02:09 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-05-17 00:42:31 +0200 |
| commit | 6999181eecb11863b78030c68037a9f851522735 (patch) | |
| tree | fb0efde78f52e36a6493ab71cb0f387e85997a97 | |
| parent | 33a0d1907fb442cd59b8e2eb83be79c4ab1cb791 (diff) | |
mfd: ab8500: Pass AB8500 IRQ to debugfs code by resource
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. Use an untyped resource to
stop the MFD core from remapping this IRQ relative to the
AB8500 irqdomain.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/mfd/ab8500-core.c | 15 | ||||
| -rw-r--r-- | drivers/mfd/ab8500-debugfs.c | 16 |
2 files changed, 27 insertions, 4 deletions
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 8e8a016effe9..65cd46bbe336 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -868,6 +868,15 @@ static struct resource ab8500_chargalg_resources[] = {}; #ifdef CONFIG_DEBUG_FS static struct resource ab8500_debug_resources[] = { { + .name = "IRQ_AB8500", + /* + * Number will be filled in. NOTE: this is deliberately + * not flagged as an IRQ in ordet to avoid remapping using + * the irqdomain in the MFD core, so that this IRQ passes + * unremapped to the debug code. + */ + }, + { .name = "IRQ_FIRST", .start = AB8500_INT_MAIN_EXT_CH_NOT_OK, .end = AB8500_INT_MAIN_EXT_CH_NOT_OK, @@ -1712,6 +1721,12 @@ 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 b88bbbc15f1e..37b7ce4c7c3b 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]++; } } @@ -2941,6 +2939,7 @@ static int ab8500_debug_probe(struct platform_device *plf) struct dentry *file; int ret = -ENOMEM; struct ab8500 *ab8500; + struct resource *res; debug_bank = AB8500_MISC; debug_address = AB8500_REV_REG & 0x00FF; @@ -2959,6 +2958,15 @@ static int ab8500_debug_probe(struct platform_device *plf) if (!event_name) goto out_freedev_attr; + res = platform_get_resource_byname(plf, 0, "IRQ_AB8500"); + if (!res) { + dev_err(&plf->dev, "AB8500 irq not found, err %d\n", + irq_first); + ret = -ENXIO; + goto out_freeevent_name; + } + irq_ab8500 = res->start; + irq_first = platform_get_irq_byname(plf, "IRQ_FIRST"); if (irq_first < 0) { dev_err(&plf->dev, "First irq not found, err %d\n", |