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Subject[PATCH 16/50] staging: omap-thermal: read status only once inside alert IRQ
Date
There is no need to re-read status register.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
---
drivers/staging/omap-thermal/omap-bandgap.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index 531e853..fce3942 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -164,15 +164,15 @@ static irqreturn_t omap_bandgap_talert_irq_handler(int irq, void *data)
u32 t_hot = 0, t_cold = 0, ctrl;
int i;

- /* Read the status of t_hot */
for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
tsr = bg_ptr->conf->sensors[i].registers;
- t_hot = omap_bandgap_readl(bg_ptr, tsr->bgap_status);
- t_hot &= tsr->status_hot_mask;
+ ctrl = omap_bandgap_readl(bg_ptr, tsr->bgap_status);
+
+ /* Read the status of t_hot */
+ t_hot = ctrl & tsr->status_hot_mask;

/* Read the status of t_cold */
- t_cold = omap_bandgap_readl(bg_ptr, tsr->bgap_status);
- t_cold &= tsr->status_cold_mask;
+ t_cold = ctrl & tsr->status_cold_mask;

if (!t_cold && !t_hot)
continue;
--
1.7.7.1.488.ge8e1c


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