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: Ie9062aa0741be4daf059d6141cef619d78e87f3f
Signed-off-by: Shreshtha SAHU <ssahu@nvidia.com>
Reviewed-on: http://git-master/r/743610
(cherry picked from commit f0dc3a93f225dbbcb6d57f2ac9d73439042aeb24)
Reviewed-on: http://git-master/r/764214
Reviewed-by: Hayden Du <haydend@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index b753de34ebcb1f6810298e869209286768ee7bd2..ab410975a1daacece5bf24c2a405704cb24fa3e7 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", },
        { }
 };