diff mbox series

[v3,5/5] dmaengine: imx-sdma: Add i2c dma support

Message ID 20240318-sdma_upstream-v3-5-da37ddd44d49@nxp.com (mailing list archive)
State Superseded
Headers show
Series dmaengine: fsl-sdma: Some improvement for fsl-sdma | expand

Commit Message

Frank Li March 18, 2024, 8:44 p.m. UTC 
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 mbox series

Patch

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 35fb69a84a8da..5bc4419fd45f3 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -247,6 +247,8 @@  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 */
@@ -1077,6 +1079,11 @@  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 {