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dmaengine: imx-sdma: Add i2c dma support 

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>
Link: https://lore.kernel.org/r/20240419150729.1071904-3-Frank.Li@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Robin Gong 2024-04-19 11:07:29 -04:00 committed by Vinod Koul
parent 1cb49f389d
commit d850b5bae0
2 changed files with 8 additions and 0 deletions
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7
drivers/dma/imx-sdma.c
View File

@ -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;

1
include/linux/dma/imx-dma.h
View File

@ -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 {