linux-kernel - [PATCH 2/7] mmc: sdhci-of-arasan: Add "SDHCI_QUIRK_MULTIBLOCK_READ

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Message-ID: <1623753837-21035-3-git-send-email-manish.narani@xilinx.com>
Date:   Tue, 15 Jun 2021 16:13:52 +0530
From:   Manish Narani <manish.narani@...inx.com>
To:     <michal.simek@...inx.com>, <adrian.hunter@...el.com>,
        <ulf.hansson@...aro.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Manish Narani <manish.narani@...inx.com>
Subject: [PATCH 2/7] mmc: sdhci-of-arasan: Add "SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12" quirk.

Arasan controller supports AUTO CMD12, this patch adds
"SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12" quirk to enable auto cmd12
feature.
By using auto cmd12 we can also avoid following error message
"Got data interrupt even though no data operation in progress"

Signed-off-by: Manish Narani <manish.narani@...inx.com>
---
 drivers/mmc/host/sdhci-of-arasan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index fc3e41c..b13e719 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -1616,6 +1616,7 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
 			arasan_zynqmp_execute_tuning;
 
 		sdhci_arasan->quirks |= SDHCI_ARASAN_QUIRK_CLOCK_25_BROKEN;
+		host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
 	}
 
 	arasan_dt_parse_clk_phases(dev, &sdhci_arasan->clk_data);
-- 
2.1.1