pinctrl: aspeed: Add SIG_DESC_CLEAR() helper

The complement of SIG_DESC_SET().

Signed-off-by: Andrew Jeffery <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>

Author: amboar

drivers/pinctrl/aspeed/pinmux-aspeed.h

@@ -508,6 +508,7 @@ struct aspeed_pin_desc {
  * @idx: The bit index in the register
  */
 #define SIG_DESC_SET(reg, idx) SIG_DESC_IP_BIT(ASPEED_IP_SCU, reg, idx, 1)
+#define SIG_DESC_CLEAR(reg, idx) SIG_DESC_IP_BIT(ASPEED_IP_SCU, reg, idx, 0)
 
 #define SIG_DESC_LIST_SYM(sig, group) sig_descs_ ## sig ## _ ## group
 #define SIG_DESC_LIST_DECL(sig, group, ...) \