linux-kernel - [PATCH AUTOSEL for 3.18 038/101] mmc: sdhci-esdhc: Add SDHCI_QUIRK_32BIT_DMA

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Message-ID: <20180409003505.164715-38-alexander.levin@microsoft.com>
Date:   Mon, 9 Apr 2018 00:35:47 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Benoît Thébaudeau <benoit@...stem.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 3.18 038/101] mmc: sdhci-esdhc: Add
 SDHCI_QUIRK_32BIT_DMA_ADDR

From: Benoît Thébaudeau <benoit@...stem.com>

[ Upstream commit cbb4509374963bea440c15ff26e2501d15e7927a ]

The eSDHC can only DMA from 32-bit-aligned addresses.

This fixes the following test cases of mmc_test:
  11:	Badly aligned write
  12:	Badly aligned read
  13:	Badly aligned multi-block write
  14:	Badly aligned multi-block read

Signed-off-by: Benoît Thébaudeau <benoit@...stem.com>
Acked-by: Adrian Hunter <adrian.hunter@...el.com>
Reviewed-by: Fabio Estevam <fabio.estevam@....com>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/mmc/host/sdhci-esdhc.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index a870c42731d7..4cc119072fe9 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -19,6 +19,7 @@
  */
 
 #define ESDHC_DEFAULT_QUIRKS	(SDHCI_QUIRK_FORCE_BLK_SZ_2048 | \
+				SDHCI_QUIRK_32BIT_DMA_ADDR | \
 				SDHCI_QUIRK_NO_BUSY_IRQ | \
 				SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \
 				SDHCI_QUIRK_PIO_NEEDS_DELAY)
-- 
2.15.1