Hi Geert,
On 20.09.2017 16:44, Geert Uytterhoeven wrote:
Hi Vladimir,
On Thu, Sep 14, 2017 at 4:19 PM, Vladimir Barinov
<[email protected]> wrote:
This supports PCA9539 gpio expanders on I2C2 bus on ULCB Kingfisher board
Signed-off-by: Vladimir Barinov <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -48,6 +48,28 @@
status = "okay";
};
+&i2c2 {
+ gpio_exp_74: gpio@74 {
+ compatible = "nxp,pca9539";
According to the schematics, this is the TI TCA9539, an enhanced version
of the NXP PCA9539. So I'd expect "ti,tca9539".
However, using the latter may not work (I didn't try), as pca953x_id[]
lists both parts, while pca953x_dt_ids[] lists only the NXP part number.
It works with "ti,tca9539"
--
Regards,
Vladimir
