Hi Kory,
On 11/6/2025 4:49 AM, Kory Maincent (TI.com) wrote:
The vdd_mpu regulator maximum voltage was previously limited to 1.2985V, which prevented the CPU from reaching the 1GHz operating point. This limitation was put in place because voltage changes were not working correctly, causing the board to stall when attempting higher frequencies. Increase the maximum voltage to 1.3515V to allow the full 1GHz OPP to be used.
Add a TPS65219 PMIC driver fixes that properly implement the LOCK register handling, to make voltage transitions work reliably.
Changes in v2:
- Setup a custom regmap_bus only for the TPS65214 instead of checking the chip_id every time reg_write is called.
- Add the am335x-bonegreen-eco devicetree change in the same patch series.
Reviewed-by: Shree Ramamoorthy s-ramamoorthy@ti.com
Signed-off-by: Kory Maincent (TI.com) kory.maincent@bootlin.com
Kory Maincent (TI.com) (2): mfd: tps65219: Implement LOCK register handling for TPS65214 ARM: dts: am335x-bonegreen-eco: Enable 1GHz OPP by increasing vdd_mpu voltage
arch/arm/boot/dts/ti/omap/am335x-bonegreen-eco.dts | 2 +- drivers/mfd/tps65219.c | 51 +++++++++++++++++++++- include/linux/mfd/tps65219.h | 2 + 3 files changed, 53 insertions(+), 2 deletions(-)
base-commit: 1c353dc8d962de652bc7ad2ba2e63f553331391c change-id: 20251106-fix_tps65219-dd62141d22cf
Best regards,