linux-kernel - [PATCH v2 3/5] mmc: sdhci-sprd: add SDHCI_QUIRK2_PRESET_VALUE

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Date:   Wed, 28 Aug 2019 10:17:34 +0800
From:   Chunyan Zhang <zhang.lyra@...il.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang@...aro.org>
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chunyan Zhang <zhang.lyra@...il.com>
Subject: [PATCH v2 3/5] mmc: sdhci-sprd: add SDHCI_QUIRK2_PRESET_VALUE_BROKEN

From: Chunyan Zhang <chunyan.zhang@...soc.com>

The bit of PRESET_VAL_ENABLE in HOST_CONTROL2 register is reserved on
sprd's sd host controller, set quirk2 to disable configuring this.

Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host
controller")
Signed-off-by: Chunyan Zhang <chunyan.zhang@...soc.com>
Signed-off-by: Chunyan Zhang <zhang.lyra@...il.com>
Reviewed-by: Baolin Wang <baolin.wang@...aro.org>
Tested-by: Baolin Wang <baolin.wang@...aro.org>
---
 drivers/mmc/host/sdhci-sprd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
index 90cb2af91159..27d0b57f3f89 100644
--- a/drivers/mmc/host/sdhci-sprd.c
+++ b/drivers/mmc/host/sdhci-sprd.c
@@ -510,7 +510,8 @@ static void sdhci_sprd_phy_param_parse(struct sdhci_sprd_host *sprd_host,
 static const struct sdhci_pltfm_data sdhci_sprd_pdata = {
 	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK,
 	.quirks2 = SDHCI_QUIRK2_BROKEN_HS200 |
-		   SDHCI_QUIRK2_USE_32BIT_BLK_CNT,
+		   SDHCI_QUIRK2_USE_32BIT_BLK_CNT |
+		   SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 	.ops = &sdhci_sprd_ops,
 };
 
-- 
2.20.1