git.stricted.de - GitHub/LineageOS/android_kernel_samsung

author	Vignesh R <vigneshr@ti.com>
	Thu, 9 Jun 2016 05:32:04 +0000 (11:02 +0530)
committer	Danny Wood <danwood76@gmail.com>
	Tue, 29 Jan 2019 13:13:52 +0000 (13:13 +0000)
commit	eb82acf5e0f4dda9a2428404e594f8e45a40bb2a
tree	79e0e9876b89143acad3a93c9e70149ebbc5158f	tree \| snapshot (tar.gz zip)
parent	513c5f5b4ab477f300d8c7c17af9b46b0be3210c	commit \| diff

gpio: pca953x: Fix NBANK calculation for PCA9536

commit a246b8198f776a16d1d3a3bbfc2d437bad766b29 upstream.

NBANK() macro assumes that ngpios is a multiple of 8(BANK_SZ) and
hence results in 0 banks for PCA9536 which has just 4 gpios. This is
wrong as PCA9356 has 1 bank with 4 gpios. This results in uninitialized
PCA953X_INVERT register. Fix this by using DIV_ROUND_UP macro in
NBANK().

Cc: stable@vger.kernel.org
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>