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| author | Marek Vasut <marek.vasut+renesas@mailbox.org> | 2024-08-31 22:31:45 +0200 |
|---|---|---|
| committer | Marek Vasut <marek.vasut+renesas@mailbox.org> | 2024-09-09 01:10:33 +0200 |
| commit | 3fba388e611e27e663c7cb4c1d1483e8909bdbc0 (patch) | |
| tree | cac6bad3adc685fbf89466cd71dbbd0ea7ec2774 | |
| parent | 1cc7c7e119a31c64cf64d887374c95b58ffe9993 (diff) | |
| download | u-boot-3fba388e611e27e663c7cb4c1d1483e8909bdbc0.tar.gz u-boot-3fba388e611e27e663c7cb4c1d1483e8909bdbc0.tar.bz2 u-boot-3fba388e611e27e663c7cb4c1d1483e8909bdbc0.zip | |
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 <marek.vasut+renesas@mailbox.org>
| -rw-r--r-- | drivers/spi/renesas_rpc_spi.c | 6 |
1 files 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); |