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gpio: pca953x: add more register definitions for pcal6524
The pcal6524 has another set of registers to fine control the interrupt handling. 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>
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#define PCAL953X_INT_STAT 0x26
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#define PCAL953X_OUT_CONF 0x27
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#define PCAL6524_INT_EDGE 0x28
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#define PCAL6524_INT_CLR 0x2a
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#define PCAL6524_IN_STATUS 0x2b
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#define PCAL6524_OUT_INDCONF 0x2c
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#define PCAL6524_DEBOUNCE 0x2d
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#define PCA_GPIO_MASK 0x00FF
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#define PCA_INT 0x0100
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#define PCA_PCAL 0x0200
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