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054ccdef8b
Add optional reset-gpios pin control. If present, de-assert the specified reset gpio pin to bring the chip out of reset. v2: - Specify that reset signal to PCA953x chip is active low, in binding doc. - reorder includes in gpio-pca953x.c. - remove dev_err() on devm_gpiod_get_optional() error return. Cc: Alexandre Courbot <gnurou@gmail.com> Cc: linux-gpio@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
47 lines
785 B
Plaintext
47 lines
785 B
Plaintext
* NXP PCA953x I2C GPIO multiplexer
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Required properties:
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- compatible: Has to contain one of the following:
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nxp,pca9505
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nxp,pca9534
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nxp,pca9535
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nxp,pca9536
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nxp,pca9537
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nxp,pca9538
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nxp,pca9539
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nxp,pca9554
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nxp,pca9555
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nxp,pca9556
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nxp,pca9557
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nxp,pca9574
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nxp,pca9575
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nxp,pca9698
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maxim,max7310
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maxim,max7312
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maxim,max7313
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maxim,max7315
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ti,pca6107
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ti,pca9536
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ti,tca6408
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ti,tca6416
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ti,tca6424
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ti,tca9539
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onsemi,pca9654
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exar,xra1202
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Optional properties:
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- reset-gpios: GPIO specification for the RESET input. This is an
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active low signal to the PCA953x.
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Example:
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gpio@20 {
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compatible = "nxp,pca9505";
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reg = <0x20>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_pca9505>;
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interrupt-parent = <&gpio3>;
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interrupts = <23 IRQ_TYPE_LEVEL_LOW>;
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};
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