[PATCH v3 0/2] Add regulator support to qcom-ufs driver
Federico Amedeo Izzo via B4 Relay
devnull+federico.izzo.pro at kernel.org
Sat May 23 12:25:50 CEST 2026
This series enables UFS support on SC7280 devices with UFS3.1.
SC7280 devices with UFS2.2 were already working.
The root cause was ABL leaving vcc-supply regulator disabled on UFS3.1
devices, and enabled on UFS2.2 devices that worked fine without
regulator support.
Signed-off-by: Federico Amedeo Izzo <federico at izzo.pro>
---
Changes in v3:
- Fix bug causing HPM mode not being applied. Removed LPM/HPM hack
- Read regulator mode from dts property instead of hardcoding it
- Link to v2: https://patch.msgid.link/20260521-qcom-ufs-regulator-support-v2-1-d3ec82ae5dbc@izzo.pro
Changes in v2:
- Add vccq2-supply for UFS2.2 devices without internal eLDO regulator
- Fix wrong topic
- Link to v1: https://patch.msgid.link/20260521-dpu-add-dspp-gc-driver-v1-1-83372488cdcf@izzo.pro
To: Sumit Garg <sumit.garg at kernel.org>
To: u-boot-qcom at groups.io
To: u-boot at lists.denx.de
Cc: Jaehoon Chung <jh80.chung at samsung.com>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Casey Connolly <casey.connolly at linaro.org>
Cc: Neil Armstrong <neil.armstrong at linaro.org>
Cc: Tom Rini <trini at konsulko.com>
Cc: Luca Weiss <luca.weiss at fairphone.com>
Cc: Aswin Murugan <aswin.murugan at oss.qualcomm.com>
Cc: Federico Amedeo Izzo <federico at izzo.pro>
Cc: Bhupesh Sharma <bhupesh.linux at gmail.com>
Cc: Neha Malcom Francis <n-francis at ti.com>
Cc: Julien Stephan <jstephan at baylibre.com>
Cc: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
Federico Amedeo Izzo (2):
regulator: qcom-rpmh-regulator: fix regulator mode mismatch
ufs: qcom: add ufs host regulator support
drivers/power/regulator/qcom-rpmh-regulator.c | 3 +--
drivers/ufs/ufs-qcom.c | 33 +++++++++++++++++++++++++++
drivers/ufs/ufs-qcom.h | 4 ++++
3 files changed, 38 insertions(+), 2 deletions(-)
---
base-commit: 744cf5d4e398c5f657e5c3eeb44d00fa5175dc85
change-id: 20260521-qcom-ufs-regulator-support-466ea6ad202a
Best regards,
--
Federico Amedeo Izzo <federico at izzo.pro>
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