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Subject[PATCH v4 5/5] dmaengine: imx-sdma: Add i2c dma support
From: Robin Gong <yibin.gong@nxp.com>

New sdma script (sdma-6q: v3.6, sdma-7d: v4.6) support i2c at imx8mp and
imx6ull. So add I2C dma support.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Acked-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Joy Zou <joy.zou@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
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 f68ab34a3c880..1ab8a7d3a50dc 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 */
s32 mcu_2_zqspi_addr;
/* End of v4 array */
@@ -1081,6 +1083,11 @@ 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 {
--
2.34.1


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