[PATCH] spi: rockchip-sfc: Remove redundant IO operations

[PATCH] spi: rockchip-sfc: Remove redundant IO operations

[Jon Lin]

Coherent dma buffer is uncached and memcpy is enough.

Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
---

 drivers/spi/spi-rockchip-sfc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-rockchip-sfc.c b/drivers/spi/spi-rockchip-sfc.c
index 7c4d47fe80c2..81154a8836fc 100644
--- a/drivers/spi/spi-rockchip-sfc.c
+++ b/drivers/spi/spi-rockchip-sfc.c
@@ -453,7 +453,7 @@ static int rockchip_sfc_xfer_data_dma(struct rockchip_sfc *sfc,
 	dev_dbg(sfc->dev, "sfc xfer_dma len=%x\n", len);
 
 	if (op->data.dir == SPI_MEM_DATA_OUT)
-		memcpy_toio(sfc->buffer, op->data.buf.out, len);
+		memcpy(sfc->buffer, op->data.buf.out, len);
 
 	ret = rockchip_sfc_fifo_transfer_dma(sfc, sfc->dma_buffer, len);
 	if (!wait_for_completion_timeout(&sfc->cp, msecs_to_jiffies(2000))) {
@@ -462,7 +462,7 @@ static int rockchip_sfc_xfer_data_dma(struct rockchip_sfc *sfc,
 	}
 	rockchip_sfc_irq_mask(sfc, SFC_IMR_DMA);
 	if (op->data.dir == SPI_MEM_DATA_IN)
-		memcpy_fromio(op->data.buf.in, sfc->buffer, len);
+		memcpy(op->data.buf.in, sfc->buffer, len);
 
 	return ret;
 }
-- 
2.17.1

Re: [PATCH] spi: rockchip-sfc: Remove redundant IO operations

[Mark Brown]

On Sat, 21 Aug 2021 20:49:25 +0800, Jon Lin wrote:
> Coherent dma buffer is uncached and memcpy is enough.
> 
> 
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next

Thanks!

[1/1] spi: rockchip-sfc: Remove redundant IO operations
      commit: 8d00f9819458b95301e274c6df705df2963ba34f

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark