[alsa-devel] [RESEND PATCH] ASoC: rsnd: dma: fix SSI9 4/5/6/7 busif dma address

[Kuninori Morimoto]

Hi

> From: Jiada Wang <jiada_wang at mentor.com>
> 
> Currently each SSI unit's busif dma address is calculated by
> following calculation formula:
> 0xec540000 + 0x1000 * id + busif / 4 * 0xA000 + busif % 4 * 0x400
> 
> But according to R-Car3 HW 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 formula to correct
> ssi9 4/5/6/7 busif data register address.
> 
> Fixes: 5e45a6fab3b9 ("ASoc: rsnd: dma: Calculate dma address with consider of BUSIF")
> Signed-off-by: Jiada Wang <jiada_wang at mentor.com>
> Signed-off-by: Timo Wischer <twischer at de.adit-jv.com>
> [erosca: minor improvements in commit description]
> Cc: Andrew Gabbasov <andrew_gabbasov at mentor.com>
> Cc: stable at vger.kernel.org # v4.20+
> Signed-off-by: Eugeniu Rosca <erosca at de.adit-jv.com>
> ---

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>