[PATCH v2 2/4] mmc: sdhci-esdhc-imx: add 1-bit bus width support
From: <hidden>
Date: 2026-03-03 10:48:21
Also in:
imx, linux-mmc, lkml
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, secure digital host controller interface (sdhci) driver, secure digital host controller interface (sdhci) nxp i.mx driver, the rest · Maintainers:
Ulf Hansson, Adrian Hunter, Haibo Chen, Linus Torvalds
From: Luke Wang <redacted> Add sdhci_get_property() call to parse common SDHCI DT properties, including "bus-width = <1>" which sets SDHCI_QUIRK_FORCE_1_BIT_DATA quirk for 1-bit data bus width configuration. Remove the duplicate "no-1-8-v" property parsing since sdhci_get_property() already handles it. Signed-off-by: Luke Wang <redacted> --- drivers/mmc/host/sdhci-esdhc-imx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 97461e20425d..b607d4ffc562 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c@@ -1813,8 +1813,6 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, of_property_read_u32(np, "fsl,strobe-dll-delay-target", &boarddata->strobe_dll_delay_target); - if (of_property_read_bool(np, "no-1-8-v")) - host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V; if (of_property_read_u32(np, "fsl,delay-line", &boarddata->delay_line)) boarddata->delay_line = 0;
@@ -1833,6 +1831,8 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, if (ret) return ret; + sdhci_get_property(pdev); + /* HS400/HS400ES require 8 bit bus */ if (!(host->mmc->caps & MMC_CAP_8_BIT_DATA)) host->mmc->caps2 &= ~(MMC_CAP2_HS400 | MMC_CAP2_HS400_ES);
--
2.34.1