On 29-03-24, 10:34, Frank Li wrote:
> From: Robin Gong <yibin.gong@xxxxxxx>
>
> 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@xxxxxxx>
> Acked-by: Clark Wang <xiaoning.wang@xxxxxxx>
> Reviewed-by: Joy Zou <joy.zou@xxxxxxx>
> Reviewed-by: Daniel Baluta <daniel.baluta@xxxxxxx>
> Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
> ---
> 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 */
I have HDMI Audio: 26 already?
--
~Vinod
