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Thu, 19 May 2022 01:15:14 -0700 (PDT) MIME-Version: 1.0 References: <20220518111652.223727-7-angelogioacchino.delregno@collabora.com> <20220519044153.11078-1-miles.chen@mediatek.com> <7e60b63c-2bf7-a77e-fe0f-a891efa77a47@collabora.com> In-Reply-To: <7e60b63c-2bf7-a77e-fe0f-a891efa77a47@collabora.com> From: Chen-Yu Tsai Date: Thu, 19 May 2022 16:15:03 +0800 Message-ID: Subject: Re: [PATCH v2 6/7] clk: mediatek: Export required symbols to compile clk drivers as module To: AngeloGioacchino Del Regno Cc: Miles Chen , bgolaszewski@baylibre.com, chun-jie.chen@mediatek.com, ck.hu@mediatek.com, devicetree@vger.kernel.org, fparent@baylibre.com, ikjn@chromium.org, jason-jh.lin@mediatek.com, kernel@collabora.com, konrad.dybcio@somainline.org, krzysztof.kozlowski+dt@linaro.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, marijn.suijten@somainline.org, martin.botka@somainline.org, matthias.bgg@gmail.com, mturquette@baylibre.com, p.zabel@pengutronix.de, paul.bouchara@somainline.org, phone-devel@vger.kernel.org, rex-bc.chen@mediatek.com, robh+dt@kernel.org, sam.shih@mediatek.com, sboyd@kernel.org, tinghan.shen@mediatek.com, weiyi.lu@mediatek.com, y.oudjana@protonmail.com, ~postmarketos/upstreaming@lists.sr.ht Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 19, 2022 at 4:05 PM AngeloGioacchino Del Regno wrote: > > Il 19/05/22 06:41, Miles Chen ha scritto: > > > > Hi Angelo, > > > >> In order to compile the clock drivers for various MediaTek SoCs as > >> modules, it is necessary to export a few functions from the MediaTek > >> specific clocks (and reset) libraries. > >> > >> Signed-off-by: AngeloGioacchino Del Regno > >> --- > >> drivers/clk/mediatek/clk-apmixed.c | 1 + > >> drivers/clk/mediatek/clk-cpumux.c | 2 ++ > >> drivers/clk/mediatek/clk-mtk.c | 2 ++ > >> drivers/clk/mediatek/reset.c | 1 + > >> 4 files changed, 6 insertions(+) > >> > >> diff --git a/drivers/clk/mediatek/clk-apmixed.c b/drivers/clk/mediatek/clk-apmixed.c > >> index 6b0ab0a346e8..f126da693a7f 100644 > >> --- a/drivers/clk/mediatek/clk-apmixed.c > >> +++ b/drivers/clk/mediatek/clk-apmixed.c > >> @@ -98,5 +98,6 @@ struct clk_hw *mtk_clk_register_ref2usb_tx(const char *name, > >> > >> return &tx->hw; > >> } > >> +EXPORT_SYMBOL_GPL(mtk_clk_register_ref2usb_tx); > >> > >> MODULE_LICENSE("GPL"); > >> diff --git a/drivers/clk/mediatek/clk-cpumux.c b/drivers/clk/mediatek/clk-cpumux.c > >> index 2b5d48591738..25618eff6f2a 100644 > >> --- a/drivers/clk/mediatek/clk-cpumux.c > >> +++ b/drivers/clk/mediatek/clk-cpumux.c > >> @@ -150,6 +150,7 @@ int mtk_clk_register_cpumuxes(struct device_node *node, > >> > >> return PTR_ERR(hw); > >> } > >> +EXPORT_SYMBOL_GPL(mtk_clk_register_cpumuxes); > >> > >> void mtk_clk_unregister_cpumuxes(const struct mtk_composite *clks, int num, > >> struct clk_hw_onecell_data *clk_data) > >> @@ -166,5 +167,6 @@ void mtk_clk_unregister_cpumuxes(const struct mtk_composite *clks, int num, > >> clk_data->hws[mux->id] = ERR_PTR(-ENOENT); > >> } > >> } > >> +EXPORT_SYMBOL_GPL(mtk_clk_unregister_cpumuxes); > >> > >> MODULE_LICENSE("GPL"); > >> diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c > >> index 05a188c62119..41e60a7e8ff9 100644 > >> --- a/drivers/clk/mediatek/clk-mtk.c > >> +++ b/drivers/clk/mediatek/clk-mtk.c > >> @@ -459,6 +459,7 @@ int mtk_clk_simple_probe(struct platform_device *pdev) > >> mtk_free_clk_data(clk_data); > >> return r; > >> } > >> +EXPORT_SYMBOL_GPL(mtk_clk_simple_probe); > >> > >> int mtk_clk_simple_remove(struct platform_device *pdev) > >> { > >> @@ -472,5 +473,6 @@ int mtk_clk_simple_remove(struct platform_device *pdev) > >> > >> return 0; > >> } > >> +EXPORT_SYMBOL_GPL(mtk_clk_simple_remove); > > > > Thanks, I need this too. I am preparing a patch to use mtk_clk_simple_remove/mtk_clk_simple_probe > > for MT6779 clks first and maybe I can apply this to all MediaTek clk drivers. > > > > Reviewed-by: Miles Chen > > Hello Miles, > > thanks for telling me, because my next step would have been exactly what > you're doing, for all MediaTek clk drivers... otherwise we'd be doing > redundant work going afterwards. Should we consider using symbol namespaces (EXPORT_SYMBOL_NS)? ChenYu > Regards, > Angelo > > > > > thanks, > > Miles > >> > >> MODULE_LICENSE("GPL"); > >> diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c > >> index 179505549a7c..290ceda84ce4 100644 > >> --- a/drivers/clk/mediatek/reset.c > >> +++ b/drivers/clk/mediatek/reset.c > >> @@ -228,5 +228,6 @@ int mtk_register_reset_controller_with_dev(struct device *dev, > >> > >> return 0; > >> } > >> +EXPORT_SYMBOL_GPL(mtk_register_reset_controller_with_dev); > >> > >> MODULE_LICENSE("GPL"); > >> -- > >> 2.35.1 > >> > >> >