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<20260209-a9_clock_driver-v1-0-a9198dc03d2a@amlogic.com> (Chuan Liu via's message of "Mon, 09 Feb 2026 13:48:46 +0800") References: <20260209-a9_clock_driver-v1-0-a9198dc03d2a@amlogic.com> User-Agent: mu4e 1.12.9; emacs 30.1 Date: Wed, 11 Feb 2026 09:34:52 +0100 Message-ID: <1jseb7y8yb.fsf@starbuckisacylon.baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260211_003457_734578_F364595D X-CRM114-Status: GOOD ( 17.19 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org T24gbHVuLiAwOSBmw6l2ci4gMjAyNiBhdCAxMzo0OCwgQ2h1YW4gTGl1IHZpYSBCNCBSZWxheSA8 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clk: amlogic: Introduce A9 PLL and CCU driver support In-Reply-To: <20260209-a9_clock_driver-v1-0-a9198dc03d2a@amlogic.com> (Chuan Liu via's message of "Mon, 09 Feb 2026 13:48:46 +0800") References: <20260209-a9_clock_driver-v1-0-a9198dc03d2a@amlogic.com> User-Agent: mu4e 1.12.9; emacs 30.1 Date: Wed, 11 Feb 2026 09:34:52 +0100 Message-ID: <1jseb7y8yb.fsf@starbuckisacylon.baylibre.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On lun. 09 f=C3=A9vr. 2026 at 13:48, Chuan Liu via B4 Relay wrote: > This patch adds driver support for Phase-Locked Loop (PLL) controllers > and Clock Control Units (CCUs) in A9 SoC family. > > In the A9 SoC architecture, PLLs and clock control units are implemented > as standardized hardware instances to reduce unnecessary differentiation > across individual units. > > All A9 PLLs and CCUs are exposed as device tree nodes, providing an > accurate representation of the SoC's internal clock hardware structure. > > These drivers are designed for reuse in subsequent SoC generations, > guaranteeing code inheritance and maximizing reusability. > > Makefile rules compile A9 PLL and CCU drivers into clk-amlogic.o (see > drivers/clk/amlogic/Makefile), simplifying deployment and enhancing load > efficiency (single insmod for kernel module). > > Since the foundational A9 DTS hasn't been upstreamed yet, I'm temporarily > pushing the PLL/CCU DTS files to github for driver comprehension [1]. > These patches will be included in a later release after the base A9 DTS > is merged. Creating a new vendor directory and re-inventing supported driver without an explanation, coding style, build problems ... the list goes on. You've outdone yourself ! So NACK. Chuan has been warned numerous times about his submission to the kernel mailing lists, without a noticeable effect. I can only suggest other reviewers do not waste their time reviewing this. > > [1] https://github.com/torvalds/linux/commit/d6a82e4cce675fa5146c5f638c2a= 926c1c8cb1d9 > > Signed-off-by: Chuan Liu > --- > Chuan Liu (13): > dt-bindings: clock: Add Amlogic A9 standardized model clock control= units > dt-bindings: clock: Add Amlogic A9 PLL controllers > dt-bindings: clock: Add Amlogic A9 misc clock control units > clk: amlogic: Add basic clock driver > clk: amlogic: Add composite clock driver > clk: amlogic: Add noglitch clock driver > clk: amlogic: Add duandiv clock driver > clk: amlogic: Add PLL driver > clk: amlogic: Add DT-based clock registration functions > clk: amlogic: Add A9 standardized model clock control units driver > clk: amlogic: Add A9 PLL controllers driver > clk: amlogic: Add A9 misc clock control units driver > clk: amlogic: Add support for building as combined kernel module > > .../bindings/clock/amlogic,a9-misc-ccu.yaml | 523 +++++++++++ > .../bindings/clock/amlogic,a9-model-ccu.yaml | 435 +++++++++ > .../devicetree/bindings/clock/amlogic,a9-pll.yaml | 134 +++ > drivers/clk/Kconfig | 1 + > drivers/clk/Makefile | 1 + > drivers/clk/amlogic/Kconfig | 52 ++ > drivers/clk/amlogic/Makefile | 23 + > drivers/clk/amlogic/a9-misc-ccu.c | 970 +++++++++++++++= ++++++ > drivers/clk/amlogic/a9-model-ccu.c | 475 ++++++++++ > drivers/clk/amlogic/a9-pll.c | 156 ++++ > drivers/clk/amlogic/clk-basic.c | 219 +++++ > drivers/clk/amlogic/clk-basic.h | 39 + > drivers/clk/amlogic/clk-composite.c | 280 ++++++ > drivers/clk/amlogic/clk-composite.h | 20 + > drivers/clk/amlogic/clk-dualdiv.c | 365 ++++++++ > drivers/clk/amlogic/clk-dualdiv.h | 27 + > drivers/clk/amlogic/clk-module.c | 42 + > drivers/clk/amlogic/clk-module.h | 53 ++ > drivers/clk/amlogic/clk-noglitch.c | 584 +++++++++++++ > drivers/clk/amlogic/clk-noglitch.h | 29 + > drivers/clk/amlogic/clk-pll.c | 701 +++++++++++++++ > drivers/clk/amlogic/clk-pll.h | 43 + > drivers/clk/amlogic/clk.c | 464 ++++++++++ > drivers/clk/amlogic/clk.h | 56 ++ > include/dt-bindings/clock/amlogic,a9-misc-ccu.h | 53 ++ > 25 files changed, 5745 insertions(+) > --- > base-commit: 4d310797262f0ddf129e76c2aad2b950adaf1fda > change-id: 20260130-a9_clock_driver-ddd90357848c > > Best regards, --=20 Jerome