Re: [PATCH 06/14] dmaengine: dma-jz4780: Add support for the JZ4725B SoC

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 03-07-18, 14:32, Paul Cercueil wrote:
> The JZ4725B has one DMA core starring six DMA channels.
> As for the JZ4770, each DMA channel's clock can be enabled with
> a register write, the difference here being that once started, it
> is not possible to turn it off.

ok so disable for this, right..

> @@ -204,6 +205,8 @@ static inline void jz4780_dma_chan_enable(struct jz4780_dma_dev *jzdma,
>  {
>  	if (jzdma->version == ID_JZ4770)
>  		jz4780_dma_ctrl_writel(jzdma, JZ_DMA_REG_DCKES, BIT(chn));
> +	else if (jzdma->version == ID_JZ4725B)
> +		jz4780_dma_ctrl_writel(jzdma, JZ_DMA_REG_DCKE, BIT(chn));

but you are writing to a different register here.. 

-- 
~Vinod
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux