linux-kernel - [PATCH v3 2/2] gpio: pca953x: Add support for the PCAL9535

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Message-Id: <eecfadcb92f9f9c1446b4824471e9d7f45a9d8aa.1592227348.git.jan.kiszka@siemens.com>
Date:   Mon, 15 Jun 2020 15:22:29 +0200
From:   Jan Kiszka <jan.kiszka@...mens.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH v3 2/2] gpio: pca953x: Add support for the PCAL9535

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

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

Datasheet: https://www.nxp.com/docs/en/data-sheet/PCAL9535A.pdf

Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
---
 drivers/gpio/gpio-pca953x.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 1fca8dd7824f..cd5fb522563e 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -89,6 +89,7 @@ static const struct i2c_device_id pca953x_id[] = {
 
 	{ "pcal6416", 16 | PCA953X_TYPE | PCA_LATCH_INT, },
 	{ "pcal6524", 24 | PCA953X_TYPE | PCA_LATCH_INT, },
+	{ "pcal9535", 16 | PCA953X_TYPE | PCA_LATCH_INT, },
 	{ "pcal9555a", 16 | PCA953X_TYPE | PCA_LATCH_INT, },
 
 	{ "max7310", 8  | PCA953X_TYPE, },
@@ -1145,6 +1146,7 @@ static const struct of_device_id pca953x_dt_ids[] = {
 
 	{ .compatible = "nxp,pcal6416", .data = OF_953X(16, PCA_LATCH_INT), },
 	{ .compatible = "nxp,pcal6524", .data = OF_953X(24, PCA_LATCH_INT), },
+	{ .compatible = "nxp,pcal9535", .data = OF_953X(16, PCA_LATCH_INT), },
 	{ .compatible = "nxp,pcal9555a", .data = OF_953X(16, PCA_LATCH_INT), },
 
 	{ .compatible = "maxim,max7310", .data = OF_953X( 8, 0), },
-- 
2.26.2