Re: [PATCH] ASoC: rsnd: dma: fix SSI9 4/5/6/7 busif dma address

From: Kuninori Morimoto
Date: Sun Feb 24 2019 - 20:15:45 EST



Hi Jiada

Thank you for your patch

> Currently each SSI unit 's busif dma address is calculated by
> following calculation formulation:
> 0xec540000 + 0x1000 * id + busif / 4 * 0xA000 + busif % 4 * 0x400
>
> But according to user manual 41.1.4 Register Configuration
> ssi9 4/5/6/7 busif data register address
> (SSI9_4_BUSIF/SSI9_5_BUSIF/SSI9_6_BUSIF/SSI9_7_BUSIF)
> are out of this rule.
>
> This patch updates the calculation formulation to correct
> ssi9 4/5/6/7 busif data register address
>
> Fixes: commit 5e45a6fab3b9 ("ASoc: rsnd: dma: Calculate dma address with consider of BUSIF")
> Signed-off-by: Jiada Wang <jiada_wang@xxxxxxxxxx>
> Signed-off-by: Timo Wischer <twischer@xxxxxxxxxxxxxx>
> ---

We don't need below anymore by this patch ?

--- dma.c ----
/*
* FIXME
*
* We can't support SSI9-4/5/6/7, because its address is
* out of calculation rule
*/
if ((id == 9) && (busif >= 4))
dev_err(dev, "This driver doesn't support SSI%d-%d, so far",
id, busif);



Best regards
---
Kuninori Morimoto