diff mbox series

[2/2] mmc: sdhci-esdhc-imx: add support for disabling HS400 mode via DT

Message ID 20210508205658.91105-2-dev@lynxeye.de
State New
Headers show
Series [1/2] dt-bindings: mmc: add no-mmc-hs400 flag | expand

Commit Message

Lucas Stach May 8, 2021, 8:56 p.m. UTC 
On some boards the data strobe line isn't wired up, rendering HS400
support broken, even if both the controller and the eMMC claim to
support it. Allow to disable HS400 mode via DT.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index a20459744d21..1d6068507fb6 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1483,6 +1483,9 @@  sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
 	if (of_find_property(np, "no-1-8-v", NULL))
 		host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
 
+	if (of_find_property(np, "no-mmc-hs400", NULL))
+		host->quirks2 &= ~SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400;
+
 	if (of_property_read_u32(np, "fsl,delay-line", &boarddata->delay_line))
 		boarddata->delay_line = 0;