linux-kernel - [PATCH] gpio: pca953x: Add support for the PCAL9535

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Message-ID: <53b5504b-dd06-c1d5-5334-d4c5525eca93@web.de>
Date:   Sat, 13 Jun 2020 16:39:15 +0200
From:   Jan Kiszka <jan.kiszka@....de>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     linux-gpio <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] gpio: pca953x: Add support for the PCAL9535

From: Jan Kiszka <jan.kiszka@...mens.com>

The PCAL9535 [1] is compatible to the PCA9535. Additionally, it comes
with interrupt support and input latching. Other features are not
supported by the GPIO subsystem.

[1] https://www.nxp.com/docs/en/data-sheet/PCAL9535A.pdf

Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
---
 drivers/gpio/gpio-pca953x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 1fca8dd7824f..34d635e51dda 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -1131,6 +1131,7 @@ static const struct of_device_id pca953x_dt_ids[] = {
 	{ .compatible = "nxp,pca9505", .data = OF_953X(40, PCA_INT), },
 	{ .compatible = "nxp,pca9534", .data = OF_953X( 8, PCA_INT), },
 	{ .compatible = "nxp,pca9535", .data = OF_953X(16, PCA_INT), },
+	{ .compatible = "nxp,pcal9535", .data = OF_953X(16, PCA_LATCH_INT), },
 	{ .compatible = "nxp,pca9536", .data = OF_953X( 4, 0), },
 	{ .compatible = "nxp,pca9537", .data = OF_953X( 4, PCA_INT), },
 	{ .compatible = "nxp,pca9538", .data = OF_953X( 8, PCA_INT), },
--
2.26.2