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Thu, 9 Oct 2025 10:52:31 +0200 (CEST) Message-ID: Date: Thu, 9 Oct 2025 10:52:30 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/5] clk: mediatek: Refactor pll registration to pass device To: Chen-Yu Tsai Cc: Nicolas Frattaroli , 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 References: <20251008-mtk-pll-rpm-v2-0-170ed0698560@collabora.com> <20251008-mtk-pll-rpm-v2-2-170ed0698560@collabora.com> <2477df4e-c89e-408f-bb2a-d5af51f78ef8@collabora.com> From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251009_095238_877964_9D3BD232 X-CRM114-Status: GOOD ( 19.71 ) 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 Il 09/10/25 10:18, Chen-Yu Tsai ha scritto: > On Thu, Oct 9, 2025 at 4:09 PM AngeloGioacchino Del Regno > wrote: >> >> Il 08/10/25 18:05, Nicolas Frattaroli ha scritto: >>> As it stands, mtk_clk_register_plls takes a struct device_node pointer >>> as its first argument. This is a tragic happenstance, as it's trivial to >>> get the device_node from a struct device, but the opposite not so much. >>> The struct device is a much more useful thing to have passed down. >>> >>> Refactor mtk_clk_register_plls to take a struct device pointer instead >>> of a struct device_node pointer, and fix up all users of this function. >>> >>> Signed-off-by: Nicolas Frattaroli >>> --- >>> drivers/clk/mediatek/clk-mt2701.c | 2 +- >>> drivers/clk/mediatek/clk-mt2712-apmixedsys.c | 2 +- >>> drivers/clk/mediatek/clk-mt6735-apmixedsys.c | 4 ++-- >>> drivers/clk/mediatek/clk-mt6765.c | 2 +- >>> drivers/clk/mediatek/clk-mt6779.c | 2 +- >>> drivers/clk/mediatek/clk-mt6797.c | 2 +- >>> drivers/clk/mediatek/clk-mt7622-apmixedsys.c | 2 +- >>> drivers/clk/mediatek/clk-mt7629.c | 2 +- >>> drivers/clk/mediatek/clk-mt7981-apmixed.c | 2 +- >>> drivers/clk/mediatek/clk-mt7986-apmixed.c | 2 +- >>> drivers/clk/mediatek/clk-mt7988-apmixed.c | 2 +- >>> drivers/clk/mediatek/clk-mt8135-apmixedsys.c | 3 ++- >>> drivers/clk/mediatek/clk-mt8167-apmixedsys.c | 2 +- >>> drivers/clk/mediatek/clk-mt8183-apmixedsys.c | 2 +- >>> drivers/clk/mediatek/clk-mt8188-apmixedsys.c | 2 +- >>> drivers/clk/mediatek/clk-mt8195-apusys_pll.c | 3 ++- >>> drivers/clk/mediatek/clk-mt8196-apmixedsys.c | 3 ++- >>> drivers/clk/mediatek/clk-mt8196-mcu.c | 2 +- >>> drivers/clk/mediatek/clk-mt8196-mfg.c | 2 +- >>> drivers/clk/mediatek/clk-mt8196-vlpckgen.c | 2 +- >>> drivers/clk/mediatek/clk-mt8365-apmixedsys.c | 2 +- >>> drivers/clk/mediatek/clk-mt8516-apmixedsys.c | 2 +- >>> drivers/clk/mediatek/clk-pll.c | 7 ++++--- >>> drivers/clk/mediatek/clk-pll.h | 6 +++--- >>> 24 files changed, 33 insertions(+), 29 deletions(-) >>> >> >> ..snip.. >> >>> diff --git a/drivers/clk/mediatek/clk-pll.h b/drivers/clk/mediatek/clk-pll.h >>> index d71c150ce83e4bb2fe78290c2d5570a90084246d..0e2b94b9cd4b56adceee3b04e9ab24c2526471da 100644 >>> --- a/drivers/clk/mediatek/clk-pll.h >>> +++ b/drivers/clk/mediatek/clk-pll.h >>> @@ -78,9 +78,9 @@ struct mtk_clk_pll { >>> const struct mtk_pll_data *data; >>> }; >>> >> >> There's a forward declaration of struct device_node in this header: with this >> change, that becomes unused. >> >> Please change that to a forward declaration of struct device instead. >> >> While at it, I'd appreciate if you could either: >> A. Remove the forward declaration for `struct clk_hw_onecell_data` and for >> `struct clk_ops` (as both come from clk-provider.h - which this already >> includes); >> ...or... >> B. Remove the inclusion of clk-provider.h and keep the forward declarations. > > Prefer (B) since no APIs from clk-provider.h are referenced in the header. > It is up to the implementation to directly include any and all headers it > needs. > Me too. Also because other drivers are doing that. I didn't have strong opinions about this anyway, so I didn't want to influence the decision too much - but at this point I just said it so I could've said it before anyway :-P Angelo > ChenYu > >> After which: >> >> Reviewed-by: AngeloGioacchino Del Regno >> >>> -int mtk_clk_register_plls(struct device_node *node, >>> - const struct mtk_pll_data *plls, int num_plls, >>> - struct clk_hw_onecell_data *clk_data); >>> +int mtk_clk_register_plls(struct device *dev, const struct mtk_pll_data *plls, >>> + int num_plls, struct clk_hw_onecell_data *clk_data); >>> + >>> void mtk_clk_unregister_plls(const struct mtk_pll_data *plls, int num_plls, >>> struct clk_hw_onecell_data *clk_data); >>> >>> >> >> -- AngeloGioacchino Del Regno Senior Software Engineer Collabora Ltd. Platinum Building, St John's Innovation Park, Cambridge CB4 0DS, UK Registered in England & Wales, no. 5513718