[PATCH 3/3] spi: cadence-xspi: Use writel_relaxed() for cmd regs

[Jisheng Zhang <jszhang@kernel.org>]

Use writel_relaxed() for all command register writes except the last
one in cdns_xspi_trigger_command(). The ordering guarantees provided
by the final writel() ensure that all preceding writes are completed
before the command is triggered.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 drivers/spi/spi-cadence-xspi.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spi-cadence-xspi.c b/drivers/spi/spi-cadence-xspi.c
index d9996ec42edd..72852849ba27 100644
--- a/drivers/spi/spi-cadence-xspi.c
+++ b/drivers/spi/spi-cadence-xspi.c
@@ -494,11 +494,11 @@ static int cdns_xspi_wait_for_controller_idle(struct cdns_xspi_dev *cdns_xspi)
 static void cdns_xspi_trigger_command(struct cdns_xspi_dev *cdns_xspi,
 				      u32 cmd_regs[6])
 {
-	writel(cmd_regs[5], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_5);
-	writel(cmd_regs[4], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_4);
-	writel(cmd_regs[3], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_3);
-	writel(cmd_regs[2], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_2);
-	writel(cmd_regs[1], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_1);
+	writel_relaxed(cmd_regs[5], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_5);
+	writel_relaxed(cmd_regs[4], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_4);
+	writel_relaxed(cmd_regs[3], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_3);
+	writel_relaxed(cmd_regs[2], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_2);
+	writel_relaxed(cmd_regs[1], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_1);
 	writel(cmd_regs[0], cdns_xspi->iobase + CDNS_XSPI_CMD_REG_0);
 }
 
-- 
2.55.0