Re: [PATCH RFC 3/8] clk: sunxi-ng: a733: Add PRCM CCU

From: Enzo Adriano <enzo.adriano.code@gmail.com>
To: Junhui Liu <junhui.liu@pigmoral.tech>
Cc: Andre Przywara <andre.przywara@arm.com>,
	Brian Masney <bmasney@redhat.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, Chen-Yu Tsai <wens@kernel.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Richard Cochran <richardcochran@gmail.com>,
	linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-riscv@lists.infradead.org,
	devicetree@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH RFC 3/8] clk: sunxi-ng: a733: Add PRCM CCU
Date: Thu,  2 Jul 2026 12:59:44 -0400	[thread overview]
Message-ID: <20260702165944.828550-1-enzo.adriano.code@gmail.com> (raw)
In-Reply-To: <20260310-a733-clk-v1-3-36b4e9b24457@pigmoral.tech>

Hi Junhui,

Register check for the PRCM driver against the public A733 User Manual
V0.92, chapter 4.2.5: all 41 entries I could extract (13 reset-map
entries, 18 bus gates, 10 mod/mux clocks) match the manual's register
offsets and bit positions. No discrepancies found in this patch.

For what it's worth, we have also exercised the R-domain at runtime on a
Radxa Cubie A7S (r-ahb/r-apb0 rates with live consumers on r-pinctrl,
r-rtc and the PPU, bus-r-cpucfg via its critical flag), with no
misbehavior attributable to the PRCM model.

Thanks,
Enzo