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Thu, 09 Oct 2025 01:32:56 -0700 (PDT) MIME-Version: 1.0 References: <20251008-mtk-pll-rpm-v2-0-170ed0698560@collabora.com> <20251008-mtk-pll-rpm-v2-3-170ed0698560@collabora.com> In-Reply-To: <20251008-mtk-pll-rpm-v2-3-170ed0698560@collabora.com> From: Chen-Yu Tsai Date: Thu, 9 Oct 2025 16:32:45 +0800 X-Gm-Features: AS18NWD6JVU3Hv0pwNvYA85CDPCr9XWrThP36lbmILYiActB6r-bT0qxLSR0NtI Message-ID: Subject: Re: [PATCH v2 3/5] clk: mediatek: Pass device to clk_hw_register for PLLs To: Nicolas Frattaroli Cc: AngeloGioacchino Del Regno , Michael Turquette , Stephen Boyd , Dong Aisheng , Matthias Brugger , Yassine Oudjana , Laura Nao , =?UTF-8?B?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= , Chia-I Wu , kernel@collabora.com, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Stephen Boyd Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251009_093303_900572_BF342D94 X-CRM114-Status: GOOD ( 15.12 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Oct 9, 2025 at 12:06=E2=80=AFAM Nicolas Frattaroli wrote: > > Passing the struct device pointer to clk_hw_register allows for runtime > power management to work for the registered clock controllers. However, > the mediatek PLL clocks do not do this. > > Change this by adding a struct device pointer argument to > mtk_clk_register_pll, and fix up the only other user of it. Also add a > new member to the struct mtk_clk_pll for the struct device pointer, > which is set by mtk_clk_register_pll and is used by > mtk_clk_register_pll_ops. > > If mtk_clk_register_pll is called with a NULL struct device pointer, > then everything still works as expected; the clock core will simply > treat them as previously, i.e. without runtime power management. > > Signed-off-by: Nicolas Frattaroli Reviewed-by: Chen-Yu Tsai