[PATCH] Revert "leds-pca955x: Remove the unused function pca95xx_num_led_regs()"

[Eddie James <eajames@linux.ibm.com>]

This reverts commit 38bcb51f81af17a6d40fc135e565fc1fb8aa8e9d. This
function is needed by the hardware blink support just introduced. Also
rename the function to pca955x_num_led_regs to match the rest of the
functions in the driver.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
Sorry for the build failure everyone. My series was pretty old so I didn't
have that commit to remove the function. Simple rebase didn't conflict so
I didn't notice. Will make sure to test build *after* rebasing next time.

 drivers/leds/leds-pca955x.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c
index 156649e1e1c4f..e9cfde9fe4b13 100644
--- a/drivers/leds/leds-pca955x.c
+++ b/drivers/leds/leds-pca955x.c
@@ -147,6 +147,12 @@ static inline int pca955x_num_input_regs(int bits)
 	return (bits + 7) / 8;
 }
 
+/* 4 bits per LED selector register */
+static inline int pca955x_num_led_regs(int bits)
+{
+	return (bits + 3)  / 4;
+}
+
 /*
  * Return an LED selector register value based on an existing one, with
  * the appropriate 2-bit state value set for the given LED number (0-3).
-- 
2.43.5