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[43/50] staging: omap-thermal: document omap_bandgap_alert_init function

Message ID 1363352438-15935-44-git-send-email-eduardo.valentin@ti.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Eduardo Valentin March 15, 2013, 1 p.m. UTC 
Document function that sets talert handling up.

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

diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index f2ebbcf..3150ec2 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -842,7 +842,17 @@  static int omap_bandgap_tshut_init(struct omap_bandgap *bg_ptr,
 	return 0;
 }
 
-/* Initialization of Talert. Call it only if HAS(TALERT) is set */
+/**
+ * omap_bandgap_alert_init() - setup and initialize talert handling
+ * @bg_ptr: pointer to struct omap_bandgap
+ * @pdev: pointer to device struct platform_device
+ *
+ * Call this function only in case the bandgap features HAS(TALERT).
+ * In this case, the driver needs to handle the TALERT signals as an IRQs.
+ * TALERT is a normal IRQ and it is fired any time thresholds (hot or cold)
+ * are violated. In these situation, the driver must reprogram the thresholds,
+ * accordingly to specified policy.
+ */
 static int omap_bandgap_talert_init(struct omap_bandgap *bg_ptr,
 				    struct platform_device *pdev)
 {