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[PATCH] misc/pca9552: Fix LED status register indexing in pca955x_get_le


From: Andrew Jeffery
Subject: [PATCH] misc/pca9552: Fix LED status register indexing in pca955x_get_led()
Date: Fri, 23 Jul 2021 14:06:24 +0930

There was a bit of a thinko in the state calculation where every odd pin
in was reported in e.g. "pwm0" mode rather than "off". This was the
result of an incorrect bit shift for the 2-bit field representing each
LED state.

Fixes: a90d8f84674d ("misc/pca9552: Add qom set and get")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
---
 hw/misc/pca9552.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/misc/pca9552.c b/hw/misc/pca9552.c
index b7686e27d7fa..fff19e369a39 100644
--- a/hw/misc/pca9552.c
+++ b/hw/misc/pca9552.c
@@ -272,7 +272,7 @@ static void pca955x_get_led(Object *obj, Visitor *v, const 
char *name,
      * reading the INPUTx reg
      */
     reg = PCA9552_LS0 + led / 4;
-    state = (pca955x_read(s, reg) >> (led % 8)) & 0x3;
+    state = (pca955x_read(s, reg) >> ((led % 4) * 2)) & 0x3;
     visit_type_str(v, name, (char **)&led_state[state], errp);
 }
 
-- 
2.30.2




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