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Subject[PATCH v2] gpio/pca953x: Add TI TCA9539 support
Date
From: Thierry Reding <treding@nvidia.com>

The TCA9539 is almost identical to the PCA9555 and software-compatible
with this driver. It exposes 16 general purpose I/O pins in two 8-bit
configurations.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
Changes in v2:
- update device tree binding documentation

Documentation/devicetree/bindings/gpio/gpio-pca953x.txt | 1 +
drivers/gpio/gpio-pca953x.c | 2 ++
2 files changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
index b9a42f294dd0..13df9933f4cd 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt
@@ -24,6 +24,7 @@ Required properties:
ti,tca6408
ti,tca6416
ti,tca6424
+ ti,tca9539
exar,xra1202

Example:
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 50caeb1ee350..b28791279173 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -67,6 +67,7 @@ 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, },
{ "xra1202", 8 | PCA953X_TYPE },
{ }
};
@@ -754,6 +755,7 @@ static const struct of_device_id pca953x_dt_ids[] = {
{ .compatible = "ti,tca6408", },
{ .compatible = "ti,tca6416", },
{ .compatible = "ti,tca6424", },
+ { .compatible = "ti,tca9539", },

{ .compatible = "exar,xra1202", },
{ }
--
2.5.0


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