Resend patch series to fix cc list
There are MMC boot failures seen with V1P8_SIGNAL_ENA on Kingston eMMC and Microcenter/Patriot SD cards on Sitara K3 boards due to the HS200 initialization sequence involving V1P8_SIGNAL_ENA. Since V1P8_SIGNAL_ENA is optional for eMMC, do not set V1P8_SIGNAL_ENA by default for eMMC. For SD cards we shall parse DT for ti,suppress-v1p8-ena property to determine whether to suppress V1P8_SIGNAL_ENA. Add new ti,suppress-v1p8-ena to am62x, am62ax, and am62px SoC dtsi files since there is no internal LDO tied to sdhci1 interface so V1P8_SIGNAL_ENA only affects timing.
This fix was previously merged in the kernel, but was reverted due to the "heuristics for enabling the quirk"[0]. This issue is adressed in this patch series by adding optional ti,suppress-v1p8-ena DT property which determines whether to apply the quirk for SD.
Changes since v2: - Include patch 3/3 - Reword cover letter - Reword binding patch description - Add fixes/cc tags to driver patch - Reorder patches according to binding patch first - Resend to fix cc list in original v3 series
Link to v2: https://lore.kernel.org/linux-mmc/20250417182652.3521104-1-jm@ti.com/ Link to v1: https://lore.kernel.org/linux-mmc/20250407222702.2199047-1-jm@ti.com/
[0] https://lore.kernel.org/linux-mmc/20250127-am654-mmc-regression-v2-1-9bb39fb...
Judith Mendez (3): dt-bindings: mmc: sdhci-am654: Add ti,suppress-v1p8-ena mmc: sdhci_am654: Add sdhci_am654_start_signal_voltage_switch arm64: dts: ti: k3-am62*: add ti,suppress-v1p8-ena
.../devicetree/bindings/mmc/sdhci-am654.yaml | 5 +++ arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 1 + arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 1 + .../dts/ti/k3-am62p-j722s-common-main.dtsi | 1 + drivers/mmc/host/sdhci_am654.c | 32 +++++++++++++++++++ 5 files changed, 40 insertions(+)
base-commit: 1be38f81251f6d276713c259ecf4414f82f22c29