gpio: pca953x: add DT ID for TCA9539

Add DT ID for TCA9539 which has ditto register map as PCA9539, with
lower power consumption. Hence it is software compatible with PCA9539
driver.

Bug 1606897

Change-Id: I90b3b9286725c5bd42122f5639af9652f17b803c
Signed-off-by: Shreshtha SAHU <ssahu@nvidia.com>
Reviewed-on: http://git-master/r/743610
Reviewed-by: Kerwin Wan <kerwinw@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 8b549863a950d6092717ff0ba23e0cf2d4082340..134f77f1ab083c8d3930f17052b10ea08be36da4 100644 (file)
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -69,6 +69,7 @@ static const struct i2c_device_id pca953x_id[] = {
        { "tca6408", 8  | PCA953X_TYPE | PCA_INT, },
        { "tca6416", 16 | PCA953X_TYPE | PCA_INT, },
        { "tca6424", 24 | PCA953X_TYPE | PCA_INT, },
+       { "tca9539", 16 | PCA953X_TYPE | PCA_INT, },
        { }
 };
 MODULE_DEVICE_TABLE(i2c, pca953x_id);
@@ -838,6 +839,7 @@ static const struct of_device_id pca953x_dt_ids[] = {
        { .compatible = "ti,tca6408", },
        { .compatible = "ti,tca6416", },
        { .compatible = "ti,tca6424", },
+       { .compatible = "ti,tca9539", },
        { }
 };