[PATCH] iio: light: stk3310: add chip id for STK3311-X variant

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From: Icenowy Zheng <icenowy@xxxxxxx>

The STK3311 chip has a variant called STK3311-X, which has a different
chip id of 0x12.

Add the chip id to the driver.

Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx>
Signed-off-by: Ondrej Jirman <megous@xxxxxxxxxx>
---
 drivers/iio/light/stk3310.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index 185c24a75ae6..1a8401d198a4 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -37,6 +37,7 @@
 
 #define STK3310_CHIP_ID_VAL			0x13
 #define STK3311_CHIP_ID_VAL			0x1D
+#define STK3311X_CHIP_ID_VAL			0x12
 #define STK3335_CHIP_ID_VAL			0x51
 #define STK3310_PSINT_EN			0x01
 #define STK3310_PS_MAX_VAL			0xFFFF
@@ -453,6 +454,7 @@ static int stk3310_init(struct iio_dev *indio_dev)
 
 	if (chipid != STK3310_CHIP_ID_VAL &&
 	    chipid != STK3311_CHIP_ID_VAL &&
+	    chipid != STK3311X_CHIP_ID_VAL &&
 	    chipid != STK3335_CHIP_ID_VAL) {
 		dev_err(&client->dev, "invalid chip id: 0x%x\n", chipid);
 		return -ENODEV;
-- 
2.27.0




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