From: Vinod Koul <vkoul@kernel.org>
To: tglx@kernel.org, John Madieu <john.madieu.xa@bp.renesas.com>
Cc: Frank.Li@kernel.org, claudiu.beznea.uj@bp.renesas.com,
biju.das.jz@bp.renesas.com, geert+renesas@glider.be,
cosmin-gabriel.tanislav.xa@renesas.com,
dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,
john.madieu@gmail.com
Subject: Re: [PATCH v4 0/2] Add DMA ACK signal routing for RZ/V2H family
Date: Mon, 08 Jun 2026 17:43:13 +0530 [thread overview]
Message-ID: <178092079307.96550.9925462090761726451.b4-ty@kernel.org> (raw)
In-Reply-To: <20260525110750.4020112-1-john.madieu.xa@bp.renesas.com>
On Mon, 25 May 2026 11:07:48 +0000, John Madieu wrote:
> Some peripherals on RZ/V2H, RZ/V2N, and RZ/G3E SoCs require explicit
> DMA ACK signal routing through the ICU for level-based DMA handshaking.
>
> Rather than encoding the ACK signal number as a second DMA specifier
> cell, derive it in-driver from the MID/RID request number using
> arithmetic formulas based on ICU Table 4.6-28 (3 linear peripheral
> groups). It must also be noted that DMA ack register is located in
> the ICU block
>
> [...]
Applied, thanks!
[1/2] irqchip/renesas-rzv2h: Add DMA ACK signal routing support
commit: 5d596b9139f59ce412f41283baadaf809936eaf4
[2/2] dma: sh: rz-dmac: Add DMA ACK signal routing support
commit: c0a207898fca8cbb4fad0da1e950d477b6afbf64
Best regards,
--
~Vinod
prev parent reply other threads:[~2026-06-08 12:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-25 11:07 John Madieu
2026-05-25 11:07 ` [PATCH v4 1/2] irqchip/renesas-rzv2h: Add DMA ACK signal routing support John Madieu
2026-05-25 11:07 ` [PATCH v4 2/2] dma: sh: rz-dmac: " John Madieu
2026-06-08 12:13 ` Vinod Koul [this message]
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