[PATCH 2/2] gpio: 74x164: add support for 74lv164 shift register variant

[Christian Marangi <ansuelsmth@gmail.com>]

Add compatible and spi define to support 74lv164 shift register variant.
These work the same way as the 59x chip family with the only difference of
not having a "storage" feature by directly changing the outputs as bits are
shifted in without having to toggle extra pins.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 drivers/gpio/gpio-74x164.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index 5ca61cf5206a..46562c348c9c 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -181,6 +181,7 @@ static int gen_74x164_probe(struct spi_device *spi)
 
 static const struct spi_device_id gen_74x164_spi_ids[] = {
 	{ .name = "74hc595" },
+	{ .name = "74lv164" },
 	{ .name = "74lvc594" },
 	{},
 };
@@ -188,6 +189,7 @@ MODULE_DEVICE_TABLE(spi, gen_74x164_spi_ids);
 
 static const struct of_device_id gen_74x164_dt_ids[] = {
 	{ .compatible = "fairchild,74hc595" },
+	{ .compatible = "nxp,74lv164" },
 	{ .compatible = "nxp,74lvc594" },
 	{},
 };
-- 
2.55.0