mfd: max8998: Add irq domain support
This patch adds irq domain support for max8998 interrupts.
To keep both non-DT and DT worlds happy, simple domain is used, which is
linear when no explicit IRQ base is specified and legacy, with static
mapping, otherwise.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/rtc/rtc-max8998.c b/drivers/rtc/rtc-max8998.c
index d5af7ba..46f2301 100644
--- a/drivers/rtc/rtc-max8998.c
+++ b/drivers/rtc/rtc-max8998.c
@@ -16,6 +16,7 @@
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/bcd.h>
+#include <linux/irqdomain.h>
#include <linux/rtc.h>
#include <linux/platform_device.h>
#include <linux/mfd/max8998.h>
@@ -264,7 +265,6 @@
info->dev = &pdev->dev;
info->max8998 = max8998;
info->rtc = max8998->rtc;
- info->irq = max8998->irq_base + MAX8998_IRQ_ALARM0;
platform_set_drvdata(pdev, info);
@@ -277,6 +277,15 @@
goto out_rtc;
}
+ if (!max8998->irq_domain)
+ goto no_irq;
+
+ info->irq = irq_create_mapping(max8998->irq_domain, MAX8998_IRQ_ALARM0);
+ if (!info->irq) {
+ dev_warn(&pdev->dev, "Failed to map alarm IRQ\n");
+ goto no_irq;
+ }
+
ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
max8998_rtc_alarm_irq, 0, "rtc-alarm0", info);
@@ -284,6 +293,7 @@
dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
info->irq, ret);
+no_irq:
dev_info(&pdev->dev, "RTC CHIP NAME: %s\n", pdev->id_entry->name);
if (pdata && pdata->rtc_delay) {
info->lp3974_bug_workaround = true;