linux-kernel - [PATCH 0/2] mmc: mmci: stm32: manage unaligned DMA req for SDIO

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Date:   Thu, 17 Mar 2022 12:19:42 +0100
From:   Yann Gautier <yann.gautier@...s.st.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
CC:     Christophe Kerello <christophe.kerello@...s.st.com>,
        Ludovic Barre <ludovic.barre@...s.st.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        <linux-mmc@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Yann Gautier <yann.gautier@...s.st.com>
Subject: [PATCH 0/2] mmc: mmci: stm32: manage unaligned DMA req for SDIO

The first patch corrects an issue when parsing the sg list to check DMA
constraints.
The second patch manages those DMA alignment by copying from or to a
bounce buffer, the way it is done in meson-gx-mmc.

Yann Gautier (2):
  mmc: mmci: stm32: correctly check all elements of sg list
  mmc: mmci: stm32: use a buffer for unaligned DMA requests

 drivers/mmc/host/mmci_stm32_sdmmc.c | 86 ++++++++++++++++++++++-------
 1 file changed, 66 insertions(+), 20 deletions(-)

-- 
2.25.1