linux-kernel - [PATCH 13/50] staging: omap-thermal: update documentation for talert irq handler

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Date:	Fri, 15 Mar 2013 09:00:01 -0400
From:	Eduardo Valentin <eduardo.valentin@...com>
To:	<gregkh@...uxfoundation.org>
CC:	<devel@...verdev.osuosl.org>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
	Eduardo Valentin <eduardo.valentin@...com>
Subject: [PATCH 13/50] staging: omap-thermal: update documentation for talert irq handler

Document the Talert IRQ handler.

Signed-off-by: Eduardo Valentin <eduardo.valentin@...com>
---
 drivers/staging/omap-thermal/omap-bandgap.c |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index 1906ef1..aa60b7b 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -146,7 +146,17 @@ static u32 omap_bandgap_read_temp(struct omap_bandgap *bg_ptr, int id)
 	return temp;
 }
 
-/* This is the Talert handler. Call it only if HAS(TALERT) is set */
+/**
+ * omap_bandgap_talert_irq_handler() - handles Temperature alert IRQs
+ * @irq: IRQ number
+ * @data: private data (struct omap_bandgap *)
+ *
+ * This is the Talert handler. Use it only if bandgap device features
+ * HAS(TALERT). This handler goes over all sensors and checks their
+ * conditions and acts accordingly. In case there are events pending,
+ * it will reset the event mask to wait for the opposite event (next event).
+ * Every time there is a new event, it will be reported to thermal layer.
+ */
 static irqreturn_t omap_bandgap_talert_irq_handler(int irq, void *data)
 {
 	struct omap_bandgap *bg_ptr = data;
-- 
1.7.7.1.488.ge8e1c

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