[PATCH v2 0/2] CQE support for cadence eMMC host controller
From: Rohan Joshi via B4 Relay
Date: Wed May 06 2026 - 05:05:24 EST
Hi,
This series adds CQE (Command Queue Engine) support for cadence
eMMC host controller. The Cadence controller can support CQE which
is determined by reading a non standard capability register.
Updates to devicetree are also made to identify CQE register space
which may be used by the driver.
Signed-off-by: Rohan Joshi <rohan1sj@xxxxxxxxxxx>
---
Changes in v2:
- Use dev_err_probe() for error messages when in probe path
- Updated commit messages as per subsystem naming conventions
- Select MMC_CQHCI in Kconfig for MMC_SDHCI_CADENCE
- Drop new dt-binding example and corrected existing one
- Link to v1: https://patch.msgid.link/20260407-cdns_sdhci_cqe-support-v1-0-13efc0810631@xxxxxxxxxxx
---
Rohan Joshi (2):
dt-bindings: mmc: cdns,sdhci: Add CQE support
mmc: sdhci-cadence: add CQE support
.../devicetree/bindings/mmc/cdns,sdhci.yaml | 41 +++++++---------------
drivers/mmc/host/Kconfig | 1 +
drivers/mmc/host/sdhci-cadence.c | 13 +++----
3 files changed, 17 insertions(+), 38 deletions(-)
---
base-commit: 6d32b7db25329b4492f35a79fed6b1eef48959d2
change-id: 20260505-cdns_sdhci_cqe-support-388542fced5e
Best regards,
--
Rohan Joshi <rohan1sj@xxxxxxxxxxx>