diff options
| author | Vijaya Krishna Nivarthi <quic_vnivarth@quicinc.com> | 2023-05-17 17:48:13 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-06-06 18:38:33 +0100 |
| commit | 6d6e57594957ee9131bc3802dfc8657ca6f78fee (patch) | |
| tree | 4e51e995364bd2a093901fc07ed98db49fed372f /include/linux/soc | |
| parent | 9561de3a55bed6bdd44a12820ba81ec416e705a7 (diff) | |
soc: qcom: geni-se: Add interfaces geni_se_tx_init_dma() and geni_se_rx_init_dma()
The geni_se_xx_dma_prep() interfaces necessarily do DMA mapping before
initiating DMA transfers. This is not suitable for spi where framework
is expected to handle map/unmap.
Expose new interfaces geni_se_xx_init_dma() which do only DMA transfer.
Signed-off-by: Vijaya Krishna Nivarthi <quic_vnivarth@quicinc.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/1684325894-30252-2-git-send-email-quic_vnivarth@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/soc')
| -rw-r--r-- | include/linux/soc/qcom/geni-se.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/soc/qcom/geni-se.h b/include/linux/soc/qcom/geni-se.h index c55a0bc8cb0e..821a19135bb6 100644 --- a/include/linux/soc/qcom/geni-se.h +++ b/include/linux/soc/qcom/geni-se.h @@ -490,9 +490,13 @@ int geni_se_clk_freq_match(struct geni_se *se, unsigned long req_freq, unsigned int *index, unsigned long *res_freq, bool exact); +void geni_se_tx_init_dma(struct geni_se *se, dma_addr_t iova, size_t len); + int geni_se_tx_dma_prep(struct geni_se *se, void *buf, size_t len, dma_addr_t *iova); +void geni_se_rx_init_dma(struct geni_se *se, dma_addr_t iova, size_t len); + int geni_se_rx_dma_prep(struct geni_se *se, void *buf, size_t len, dma_addr_t *iova); |