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path: root/drivers/power/reset/gemini-poweroff.c
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Diffstat (limited to 'drivers/power/reset/gemini-poweroff.c')
-rw-r--r--drivers/power/reset/gemini-poweroff.c30
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/power/reset/gemini-poweroff.c b/drivers/power/reset/gemini-poweroff.c
index ff75af5abbc5..2ac291af1265 100644
--- a/drivers/power/reset/gemini-poweroff.c
+++ b/drivers/power/reset/gemini-poweroff.c
@@ -47,8 +47,12 @@ static irqreturn_t gemini_powerbutton_interrupt(int irq, void *data)
val &= 0x70U;
switch (val) {
case GEMINI_STAT_CIR:
- dev_info(gpw->dev, "infrared poweroff\n");
- orderly_poweroff(true);
+ /*
+ * We do not yet have a driver for the infrared
+ * controller so it can cause spurious poweroff
+ * events. Ignore those for now.
+ */
+ dev_info(gpw->dev, "infrared poweroff - ignored\n");
break;
case GEMINI_STAT_RTC:
dev_info(gpw->dev, "RTC poweroff\n");
@@ -116,7 +120,17 @@ static int gemini_poweroff_probe(struct platform_device *pdev)
return -ENODEV;
}
- /* Clear the power management IRQ */
+ /*
+ * Enable the power controller. This is crucial on Gemini
+ * systems: if this is not done, pressing the power button
+ * will result in unconditional poweroff without any warning.
+ * This makes the kernel handle the poweroff.
+ */
+ val = readl(gpw->base + GEMINI_PWC_CTRLREG);
+ val |= GEMINI_CTRL_ENABLE;
+ writel(val, gpw->base + GEMINI_PWC_CTRLREG);
+
+ /* Now that the state machine is active, clear the IRQ */
val = readl(gpw->base + GEMINI_PWC_CTRLREG);
val |= GEMINI_CTRL_IRQ_CLR;
writel(val, gpw->base + GEMINI_PWC_CTRLREG);
@@ -129,16 +143,6 @@ static int gemini_poweroff_probe(struct platform_device *pdev)
pm_power_off = gemini_poweroff;
gpw_poweroff = gpw;
- /*
- * Enable the power controller. This is crucial on Gemini
- * systems: if this is not done, pressing the power button
- * will result in unconditional poweroff without any warning.
- * This makes the kernel handle the poweroff.
- */
- val = readl(gpw->base + GEMINI_PWC_CTRLREG);
- val |= GEMINI_CTRL_ENABLE;
- writel(val, gpw->base + GEMINI_PWC_CTRLREG);
-
dev_info(dev, "Gemini poweroff driver registered\n");
return 0;