Commit d850b5ba authored by Robin Gong's avatar Robin Gong Committed by Vinod Koul
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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: default avatarRobin Gong <yibin.gong@nxp.com>
Acked-by: default avatarClark Wang <xiaoning.wang@nxp.com>
Reviewed-by: default avatarJoy Zou <joy.zou@nxp.com>
Reviewed-by: default avatarDaniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: default avatarFrank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240419150729.1071904-3-Frank.Li@nxp.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 1cb49f38

drivers/dma/imx-sdma.c

+7 −0
Original line number Diff line number Diff line
@@ -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;

include/linux/dma/imx-dma.h

+1 −0
Original line number Diff line number Diff line
@@ -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 {