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Message-ID: <bc609725-9201-49e7-bb34-3b3b4077c0e6@gmail.com> Date: Fri, 28 Jun 2024 15:17:53 +0800 From: Shan-Chun Hung <shanchun1218@...il.com> To: Adrian Hunter <adrian.hunter@...el.com>, ulf.hansson@...aro.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, p.zabel@...gutronix.de, pbrobinson@...il.com, serghox@...il.com, mcgrof@...nel.org, prabhakar.mahadev-lad.rj@...renesas.com, forbidden405@...look.com, tmaimon77@...il.com, andy.shevchenko@...il.com, linux-arm-kernel@...ts.infradead.org, linux-mmc@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org Cc: ychuang3@...oton.com, schung@...oton.com Subject: Re: [PATCH v2 2/2] mmc: sdhci-of-ma35d1: Add Nuvoton MA35D1 SDHCI driver Dear Adrian, Yes, that is correct. It relates to the AHB bus DMA burst size. /* * Split data into chunks of 16 or 8 bytes for sending. * Each chunk transfer is guaranteed to be uninterrupted on the bus. * This likely corresponds to the AHB bus DMA burst size. */ Best Regards, Shan-Chun On 2024/6/28 下午 02:59, Adrian Hunter wrote: > On 28/06/24 09:30, Shan-Chun Hung wrote: >> On 2024/6/27 下午 05:40, Adrian Hunter wrote: >>> On 26/06/24 12:49, Shan-Chun Hung wrote: >>>> + /* Enable INCR16 and INCR8 */ >>> Comment would be more useful if it said what INCR16 and >>> INCR8 are >> I will modify as follows: >> >> /* >> * Split data into chunks of 16 or 8 bytes for sending. >> * Each chunk transfer is guaranteed to be uninterrupted on the bus. >> */ >> > AFAICT, it relates to AHB bus DMA burst size, so maybe add > that if it is correct. >
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