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| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2024-04-05 08:08:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-09 15:28:03 +0200 |
| commit | f8fef2fa419febbfed2d04f0518111565df2673d (patch) | |
| tree | d3cff979b5fa693eaef08965e6681d0b1ca76b56 /drivers/tty/serial/serial-tegra.c | |
| parent | 9054605ab8468936a514298211d9e9bb68bf24bd (diff) | |
| download | linux-f8fef2fa419febbfed2d04f0518111565df2673d.tar.gz linux-f8fef2fa419febbfed2d04f0518111565df2673d.tar.bz2 linux-f8fef2fa419febbfed2d04f0518111565df2673d.zip | |
tty: msm_serial: use dmaengine_prep_slave_sg()
This is a preparatory for the serial-to-kfifo switch. kfifo understands
only scatter-gatter approach, so switch to that.
No functional change intended, it's just dmaengine_prep_slave_single()
inline expanded.
And in this case, switch from dma_map_single() to dma_map_sg() too. This
needs struct msm_dma changes. I split the rx and tx parts into an union.
TX is now struct scatterlist, RX remains the old good phys-virt-count
triple.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Link: https://lore.kernel.org/r/20240405060826.2521-12-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/serial-tegra.c')
0 files changed, 0 insertions, 0 deletions