linux-kernel - [PATCH] mmc: sdhci-of-dwcmshc: Use inverted-wp quirk for CV18xx and SG200x SoCs

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Date: Fri, 31 May 2024 14:13:47 +0000
From: Haylen Chu <heylenay@...look.com>
To: Adrian Hunter <adrian.hunter@...el.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Jisheng Zhang <jszhang@...nel.org>
Cc: linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Haylen Chu <heylenay@...look.com>
Subject: [PATCH] mmc: sdhci-of-dwcmshc: Use inverted-wp quirk for CV18xx and SG200x SoCs

MMC controller integrated in Sophgo CV18xx and SG200x SoCs has an
inverted write-protect flag, causing SDCards misdetected as read-only.
So set SDHCI_QURIK_INVERTED_WRITE_PROTECT to make write protection work
correctly.

Fixes: 017199c2849c ("mmc: sdhci-of-dwcmshc: Add support for Sophgo CV1800B and SG2002")
Signed-off-by: Haylen Chu <heylenay@...look.com>
---
 drivers/mmc/host/sdhci-of-dwcmshc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
index 39edf04fedcf..62b7f28de54f 100644
--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
+++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
@@ -962,7 +962,8 @@ static const struct sdhci_pltfm_data sdhci_dwcmshc_th1520_pdata = {
 
 static const struct sdhci_pltfm_data sdhci_dwcmshc_cv18xx_pdata = {
 	.ops = &sdhci_dwcmshc_cv18xx_ops,
-	.quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
+	.quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
+		  SDHCI_QUIRK_INVERTED_WRITE_PROTECT,
 	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 };
 
-- 
2.45.1