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Subject[PATCH] mmc: dt: Add property for broken hs200 quirk
Date
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
---
Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++
drivers/mmc/host/sdhci-pltfm.c | 3 +++
2 files changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index b52628b..04f80ef 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -22,6 +22,8 @@ Optional properties:
- wp-inverted: when present, polarity on the WP line is inverted. See the note
below for the case, when a GPIO is used for the WP line
- max-frequency: maximum operating clock frequency
+- broken-hs200: when present, denotes that eMMC HS200 modes are not supported on
+ this system, even if the controller claims it is.
- no-1-8-v: when present, denotes that 1.8v card voltage is not supported on
this system, even if the controller claims it is.
- cap-sd-highspeed: SD high-speed timing is supported
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index c5b01d6..570837f 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -90,6 +90,9 @@ void sdhci_get_of_property(struct platform_device *pdev)
if (of_get_property(np, "broken-cd", NULL))
host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;

+ if (of_get_property(np, "broken-hs200", NULL))
+ host->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
+
if (of_get_property(np, "no-1-8-v", NULL))
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;

--
1.8.2.2


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