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gpio: pca953x: add more register definitions for pcal953x

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PCAL chips ("L" seems to stand for "latched") have additional
registers starting at address 0x40 to control the latches,
interrupt mask, pull-up and pull down etc.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
H. Nikolaus Schaller 2018-04-28 18:31:32 +02:00 committed by Linus Walleij
parent 0950c19aca
commit 6315d231ef
1 changed files with 4 additions and 0 deletions
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4
drivers/gpio/gpio-pca953x.c
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@ -41,9 +41,13 @@
#define PCA957X_MSK 0x06
#define PCA957X_INTS 0x07
#define PCAL953X_OUT_STRENGTH 0x20
#define PCAL953X_IN_LATCH 0x22
#define PCAL953X_PULL_EN 0x23
#define PCAL953X_PULL_SEL 0x24
#define PCAL953X_INT_MASK 0x25
#define PCAL953X_INT_STAT 0x26
#define PCAL953X_OUT_CONF 0x27
#define PCA_GPIO_MASK 0x00FF
#define PCA_INT 0x0100