[PATCH 1/7] memory: renesas-rpc-if: Mark XSPI_CDD1BUF0 as volatile

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Add XSPI_CDD1BUF0 to the xSPI regmap volatile register table.

XSPI_CDD1BUF0 is a data buffer register used during manual transfers and,
like XSPI_CDD0BUF0, its contents are transient and should not be cached
by regmap. Mark it as volatile so reads always access the hardware
register.

Fixes: 687cac9559d8 ("memory: renesas-rpc-if: Add RZ/G3E xSPI support")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
 drivers/memory/renesas-rpc-if.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c
index 3755956ae906..104c28532c20 100644
--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -34,6 +34,7 @@ static const struct regmap_access_table rpcif_volatile_table = {
 
 static const struct regmap_range xspi_volatile_ranges[] = {
 	regmap_reg_range(XSPI_CDD0BUF0, XSPI_CDD0BUF0),
+	regmap_reg_range(XSPI_CDD1BUF0, XSPI_CDD1BUF0),
 };
 
 static const struct regmap_access_table xspi_volatile_table = {
-- 
2.54.0