Hi!

+static int rx85x1_nvram_read(void *priv, unsigned int offset, void *val,
+ size_t bytes)
+{
+ struct rx8581 *rx8581 = priv;
+ unsigned int tmp_val;
+ int ret;
+
+ ret = regmap_read(rx8581->regmap, RX8581_REG_RAM, &tmp_val);
+ (*(unsigned char *)val) = (unsigned char) tmp_val;
+
+ return ret;
+}
+
+static int rx85x1_nvram_write(void *priv, unsigned int offset, void *val,
+ size_t bytes)
+{
+ struct rx8581 *rx8581 = priv;
+ unsigned char tmp_val;
+
+ tmp_val = *((unsigned char *)val);
+ return regmap_write(rx8581->regmap, RX8581_REG_RAM,
+ (unsigned int)tmp_val);
+}

I see that 85x1 has single byte of RAM. I'd still expect return of
error in case of offset != 0 or bytes != 1.

Probably best done in mainline first...

Best regards,
Pavel
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