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(parent: 04000dc) | patch
spi: rockchip: adjust dma watermark and burstlen
authorHuibin Hong <huibin.hong@rock-chips.com>
Wed, 10 Oct 2018 09:00:33 +0000 (11:00 +0200)
committerMark Brown <broonie@kernel.org>
Thu, 11 Oct 2018 14:14:37 +0000 (15:14 +0100)
commitdcfc861d24ec19f0d0d3d55bb016646794571fbb
tree8d319d40fe8cf3835e3ae40f3a93f1be32b82093tree | snapshot
parent04000dc6f7e3ce24677f2895ea41746ed29a4498commit | diff
spi: rockchip: adjust dma watermark and burstlen

Signal tx dma when spi fifo is less than half full,
and limit tx bursts to half the fifo length.

Clamp rx burst length to 1 to avoid alignment issues.

Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi-rockchip.c diff | blob | history
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