[PATCH v2 2/2] gpio: xilinx: drop bitmap_complement() where feasible

[Yury Norov]

The drivers reproduces the following pattern:

	bitmap_complement(tmp, data1, nbits);
	bitmap_and(dst, data2, tmp, nbits);

This can be done in a single pass:

	bitmap_andnot(dst, data2, data1, nbits);

Reviewed-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
Signed-off-by: Yury Norov <ynorov at nvidia.com>
---
 drivers/gpio/gpio-xilinx.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c
index be4b4d730547..532205175827 100644
--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -495,13 +495,11 @@ static void xgpio_irqhandler(struct irq_desc *desc)
 
 	xgpio_read_ch_all(chip, XGPIO_DATA_OFFSET, hw);
 
-	bitmap_complement(rising, chip->last_irq_read, 64);
-	bitmap_and(rising, rising, hw, 64);
+	bitmap_andnot(rising, hw, chip->last_irq_read, 64);
 	bitmap_and(rising, rising, chip->enable, 64);
 	bitmap_and(rising, rising, chip->rising_edge, 64);
 
-	bitmap_complement(falling, hw, 64);
-	bitmap_and(falling, falling, chip->last_irq_read, 64);
+	bitmap_andnot(falling, chip->last_irq_read, hw, 64);
 	bitmap_and(falling, falling, chip->enable, 64);
 	bitmap_and(falling, falling, chip->falling_edge, 64);
 
-- 
2.51.0