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authorVignesh R <vigneshr@ti.com>2016-06-09 07:32:04 +0200
committerLinus Walleij <linus.walleij@linaro.org>2016-06-13 09:21:28 +0200
commita246b8198f776a16d1d3a3bbfc2d437bad766b29 (patch)
tree706415a262cac9849cf7134e5831d9e4d31ba57d /drivers/gpio/gpio-mxc.c
parentgpio: mmio: add MyBook Live GPIO support (diff)
downloadlinux-a246b8198f776a16d1d3a3bbfc2d437bad766b29.tar.xz
linux-a246b8198f776a16d1d3a3bbfc2d437bad766b29.zip
gpio: pca953x: Fix NBANK calculation for PCA9536
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>
Diffstat (limited to 'drivers/gpio/gpio-mxc.c')
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