From 3fba388e611e27e663c7cb4c1d1483e8909bdbc0 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 31 Aug 2024 22:31:45 +0200 Subject: [PATCH] mtd: spi: renesas: Write DRDMCR register once Instead of writing DRDMCR with 0 first and then overwriting DRDMCR again in case any dummy bytes have to be sent out, write DRDMCR in every case with the amount of dummy bytes that have to be sent out. In case no dummy bytes have to be sent out, the value written into DRDMCR is zero, so no dummy bytes are sent out. No functional change. Signed-off-by: Marek Vasut --- drivers/spi/renesas_rpc_spi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/spi/renesas_rpc_spi.c b/drivers/spi/renesas_rpc_spi.c index 749c686a6c..a2ac5525b9 100644 --- a/drivers/spi/renesas_rpc_spi.c +++ b/drivers/spi/renesas_rpc_spi.c @@ -289,12 +289,10 @@ static int rpc_spi_mem_exec_op(struct spi_slave *spi, smenr |= RPC_DRENR_ADE(0); } - writel(0, priv->regs + RPC_DRDMCR); - if (op->dummy.nbytes) { - writel(8 * op->dummy.nbytes - 1, priv->regs + RPC_DRDMCR); + if (op->dummy.nbytes) smenr |= RPC_DRENR_DME; - } + writel(8 * op->dummy.nbytes - 1, priv->regs + RPC_DRDMCR); writel(0, priv->regs + RPC_DROPR); writel(smenr, priv->regs + RPC_DRENR); -- 2.39.5