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tegra: correct gpio_index_to_port() calculation

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The gpio_index_to_port() incorrectly was dividing by
GPIO_PORTS_PER_BANK on a value including the bit number. After
masking off the BANK offset just divide by the number of gpios
in a port to get the port offset.

BUG=chrome-os-partner:29981
BRANCH=None
TEST=Built and ran through to depthcharge. Printed bank, port, and
     bit numbers for validation.

Change-Id: I8bb50e922c9fd7c0a1c247ba95394f6deb9f1533
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/210909
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
This commit is contained in:
Aaron Durbin 2014-08-04 15:40:50 -05:00 • committed by chrome-internal-fetch
commit 97e1f830b4
1 changed files with 1 additions and 1 deletions
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2
src/soc/nvidia/tegra/gpio.h
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@ -90,7 +90,7 @@ static inline int gpio_index_to_bank(int index)
static inline int gpio_index_to_port(int index)
{
return (index % GPIO_GPIOS_PER_BANK) / GPIO_PORTS_PER_BANK;
return (index % GPIO_GPIOS_PER_BANK) / GPIO_GPIOS_PER_PORT;
}
static inline int gpio_to_bit(int index)