From: "Kory Maincent (TI.com)" <kory.maincent@bootlin.com>
To: Aaro Koskinen <aaro.koskinen@iki.fi>,
Andreas Kemnade <andreas@kemnade.info>,
Kevin Hilman <khilman@baylibre.com>,
Roger Quadros <rogerq@kernel.org>,
Tony Lindgren <tony@atomide.com>, Lee Jones <lee@kernel.org>,
Shree Ramamoorthy <s-ramamoorthy@ti.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: Andrew Davis <afd@ti.com>, Bajjuri Praneeth <praneeth@ti.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org,
"Kory Maincent (TI.com)" <kory.maincent@bootlin.com>,
stable@vger.kernel.org
Subject: [PATCH v2 0/2] Enable 1GHz OPP am335x-bonegreen-eco
Date: Thu, 06 Nov 2025 11:49:01 +0100 [thread overview]
Message-ID: <20251106-fix_tps65219-v2-0-a7d608c4272f@bootlin.com> (raw)
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.
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,
--
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
next reply other threads:[~2025-11-06 10:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-06 10:49 Kory Maincent (TI.com) [this message]
2025-11-06 10:49 ` [PATCH v2 1/2] mfd: tps65219: Implement LOCK register handling for TPS65214 Kory Maincent (TI.com)
2025-11-06 22:18 ` kernel test robot
2025-11-10 13:42 ` Lee Jones
2025-11-12 8:59 ` Kory Maincent
2025-11-06 10:49 ` [PATCH v2 2/2] ARM: dts: am335x-bonegreen-eco: Enable 1GHz OPP by increasing vdd_mpu voltage Kory Maincent (TI.com)
2025-11-07 21:25 ` [PATCH v2 0/2] Enable 1GHz OPP am335x-bonegreen-eco Shree Ramamoorthy
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