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Message-Id: <20240303-sdma_upstream-v1-4-869cd0165b09@nxp.com>
Date: Sun, 03 Mar 2024 23:32:56 -0500
From: Frank Li <Frank.Li@....com>
To: Vinod Koul <vkoul@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>, NXP Linux Team <linux-imx@....com>
Cc: dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, imx@...ts.linux.dev,
Frank Li <Frank.Li@....com>, Robin Gong <yibin.gong@....com>,
Clark Wang <xiaoning.wang@....com>
Subject: [PATCH 4/4] dmaengine: imx-sdma: Add i2c dma support
From: Robin Gong <yibin.gong@....com>
New sdma script support i2c. So add I2C dma support.
Signed-off-by: Robin Gong <yibin.gong@....com>
Acked-by: Clark Wang <xiaoning.wang@....com>
Signed-off-by: Frank Li <Frank.Li@....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 9b133990afa39..832be7eccb335 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 */
@@ -1078,6 +1080,11 @@ 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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