[PATCH v2 0/3] mmc: sdhci-of-k1: add reset support

Yixun Lan
2025-12-23T02:25:38Z

This series try to add reset support explicitly to SpacemiT SDHCI controller.
Previous it works well for eMMC due to it's already initialized at brom or
bootloader phase.
The controller has two reset lines, one connect to AXI bus which shared by
all controllers, while another one connect to individual controller separately.

Signed-off-by: Yixun Lan <dlan@gentoo.org>
---
Changes in v2:
- To not break DT ABI, make the reset line request optional
- Use devm_reset_control_get_optional() api
- Link to v1: https://lore.kernel.org/r/20251221-07-k1-sdhci-reset-v1-0-6780af7fa6e7@gentoo.org

---
Yixun Lan (3):
dt-bindings: mmc: spacemit,sdhci: add reset support
mmc: sdhci-of-k1: add reset support
riscv: dts: spacemit: sdhci: add reset support

.../devicetree/bindings/mmc/spacemit,sdhci.yaml | 10 ++++++++++
arch/riscv/boot/dts/spacemit/k1.dtsi | 3 +++
drivers/mmc/host/sdhci-of-k1.c | 20 ++++++++++++++++++++
3 files changed, 33 insertions(+)
---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20251221-07-k1-sdhci-reset-1990d1170437

Best regards,
--
Yixun Lan