On Fri, Jun 02, 2023 at 09:41:19AM +0000, Joy Zou wrote:
> > + .chreg_off = EDMA_TCD,
> > + .chreg_space_sz = sizeof(struct fsl_edma_hw_tcd),
> > .flags = FSL_EDMA_DRV_HAS_DMACLK | FSL_EDMA_DRV_CONFIG32,
> > .setup_irq = fsl_edma2_irq_init,
> > };
> >
> > +static struct fsl_edma_drvdata imx8qm_data = {
> > + .flags = FSL_EDMA_DRV_HAS_CHMUX | FSL_EDMA_DRV_HAS_PD
> > + | FSL_EDMA_DRV_EDMA3,
> > + .chreg_space_sz = 0x10000,
> > + .chreg_off = 0x10000,
> > + .setup_irq = fsl_edma3_irq_init,
> > +};
> Hi frank,
> There are many dma controllers in imx8qm. But not all dma controllers support ch-mux.
> In addition, Imx93 edma v3 also doesn't support ch-mux.
> You can confirm with RM. Can we use the dts node property instead of drvdata flags?
> BR
> Joy Zou
> > +
I tested all i.mx8qxp have not ch-mux. did you find any one have ch-mux at imx8qm?
I will remove FSL_EDMA_DRV_HAS_CHMUX at imx8qm and imx93 at next version.
It works just because dmamuxs is 0. ch-mux register have not written at all.
we have compatible string, which are enough to distinguish the difference.
not neccesary to add property for that.
Frank Li
> > --
> > 2.34.1
>
