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So add I2C dma support. Signed-off-by: Robin Gong Acked-by: Clark Wang Reviewed-by: Joy Zou Reviewed-by: Daniel Baluta Signed-off-by: Frank Li --- Notes: Change from v1 to v2 - remove ccb_phy from struct sdma_engine - add i2c test platform and sdma script version informaiton at commit message. drivers/dma/imx-sdma.c | 7 +++++++ include/linux/dma/imx-dma.h | 1 + 2 files changed, 8 insertions(+) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 4a4d44ed03c8b..003e1580b9023 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -251,6 +251,8 @@ struct sdma_script_start_addrs { s32 sai_2_mcu_addr; s32 uart_2_mcu_rom_addr; s32 uartsh_2_mcu_rom_addr; + s32 i2c_2_mcu_addr; + s32 mcu_2_i2c_addr; /* End of v3 array */ union { s32 v3_end; s32 mcu_2_zqspi_addr; }; /* End of v4 array */ @@ -1082,6 +1084,11 @@ static int sdma_get_pc(struct sdma_channel *sdmac, per_2_emi = sdma->script_addrs->sai_2_mcu_addr; emi_2_per = sdma->script_addrs->mcu_2_sai_addr; break; + case IMX_DMATYPE_I2C: + per_2_emi = sdma->script_addrs->i2c_2_mcu_addr; + emi_2_per = sdma->script_addrs->mcu_2_i2c_addr; + sdmac->is_ram_script = true; + break; case IMX_DMATYPE_HDMI: emi_2_per = sdma->script_addrs->hdmi_dma_addr; sdmac->is_ram_script = true; diff --git a/include/linux/dma/imx-dma.h b/include/linux/dma/imx-dma.h index cfec5f946e237..76a8de9ae1517 100644 --- a/include/linux/dma/imx-dma.h +++ b/include/linux/dma/imx-dma.h @@ -41,6 +41,7 @@ enum sdma_peripheral_type { IMX_DMATYPE_SAI, /* SAI */ IMX_DMATYPE_MULTI_SAI, /* MULTI FIFOs For Audio */ IMX_DMATYPE_HDMI, /* HDMI Audio */ + IMX_DMATYPE_I2C, /* I2C */ }; enum imx_dma_prio {