gpio: pca953x: add compatibility for pcal6524 and pcal9555a

The Pyra-Handheld originally used the tca6424 but recently we have
replaced it by the pin and package compatible pcal6524. So let's
add this to the bindings and the driver.

And while we are at it, the pcal9555a does not have a compatible entry
either but is already supported by the device id table.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2 files changed, 6 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
index 0d0158728f89..d2a937682836 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
@@ -16,6 +16,8 @@ Required properties:
         nxp,pca9574
         nxp,pca9575
         nxp,pca9698
+        nxp,pcal6524
+        nxp,pcal9555a
         maxim,max7310
         maxim,max7312
         maxim,max7313
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index a0a5f9730aa7..d2ead4b1cf61 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -70,6 +70,7 @@ static const struct i2c_device_id pca953x_id[] = {
         { "pca9575", 16 | PCA957X_TYPE | PCA_INT, },
         { "pca9698", 40 | PCA953X_TYPE, },
 
+        { "pcal6524", 24 | PCA953X_TYPE | PCA_INT | PCA_PCAL, },
         { "pcal9555a", 16 | PCA953X_TYPE | PCA_INT | PCA_PCAL, },
 
         { "max7310", 8  | PCA953X_TYPE, },
@@ -935,6 +936,9 @@ static const struct of_device_id pca953x_dt_ids[] = {
         { .compatible = "nxp,pca9575", .data = OF_957X(16, PCA_INT), },
         { .compatible = "nxp,pca9698", .data = OF_953X(40, 0), },
 
+        { .compatible = "nxp,pcal6524", .data = OF_953X(24, PCA_INT), },
+        { .compatible = "nxp,pcal9555a", .data = OF_953X(16, PCA_INT), },
+
         { .compatible = "maxim,max7310", .data = OF_953X( 8, 0), },
         { .compatible = "maxim,max7312", .data = OF_953X(16, PCA_INT), },
         { .compatible = "maxim,max7313", .data = OF_953X(16, PCA_INT), },