linux-kernel - [PATCH v4 04/54] clk: mediatek: Add divider clocks to mtk_clk_simple

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Message-Id: <20230221115549.360132-5-angelogioacchino.delregno@collabora.com>
Date:   Tue, 21 Feb 2023 12:54:59 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     mturquette@...libre.com
Cc:     sboyd@...nel.org, matthias.bgg@...il.com,
        angelogioacchino.delregno@...labora.com, wenst@...omium.org,
        johnson.wang@...iatek.com, miles.chen@...iatek.com,
        chun-jie.chen@...iatek.com, daniel@...rotopia.org,
        fparent@...libre.com, msp@...libre.com, nfraprado@...labora.com,
        rex-bc.chen@...iatek.com, zhaojh329@...il.com,
        sam.shih@...iatek.com, edward-jw.yang@...iatek.com,
        yangyingliang@...wei.com, granquet@...libre.com,
        pablo.sun@...iatek.com, sean.wang@...iatek.com,
        chen.zhong@...iatek.com, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH v4 04/54] clk: mediatek: Add divider clocks to mtk_clk_simple_{probe,remove}()

Add support for divider clocks register/unregister in the common
mtk_clk_simple_probe() and mtk_clk_simple_remove() functions.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Reviewed-by: Chen-Yu Tsai <wenst@...omium.org>
---
 drivers/clk/mediatek/clk-mtk.c | 19 +++++++++++++++++--
 drivers/clk/mediatek/clk-mtk.h |  2 ++
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
index 990be3d62db2..01224cfbcc79 100644
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c
@@ -496,7 +496,7 @@ static int __mtk_clk_simple_probe(struct platform_device *pdev,
 	/* Calculate how many clk_hw_onecell_data entries to allocate */
 	num_clks = mcd->num_clks + mcd->num_composite_clks;
 	num_clks += mcd->num_fixed_clks + mcd->num_factor_clks;
-	num_clks += mcd->num_mux_clks;
+	num_clks += mcd->num_mux_clks + mcd->num_divider_clks;
 
 	clk_data = mtk_alloc_clk_data(num_clks);
 	if (!clk_data)
@@ -534,11 +534,19 @@ static int __mtk_clk_simple_probe(struct platform_device *pdev,
 			goto unregister_muxes;
 	}
 
+	if (mcd->divider_clks) {
+		r = mtk_clk_register_dividers(mcd->divider_clks,
+					      mcd->num_divider_clks,
+					      base, mcd->clk_lock, clk_data);
+		if (r)
+			goto unregister_composites;
+	}
+
 	if (mcd->clks) {
 		r = mtk_clk_register_gates(&pdev->dev, node, mcd->clks,
 					   mcd->num_clks, clk_data);
 		if (r)
-			goto unregister_composites;
+			goto unregister_dividers;
 	}
 
 	if (mcd->clk_notifier_func) {
@@ -567,6 +575,10 @@ static int __mtk_clk_simple_probe(struct platform_device *pdev,
 unregister_clks:
 	if (mcd->clks)
 		mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
+unregister_dividers:
+	if (mcd->divider_clks)
+		mtk_clk_unregister_dividers(mcd->divider_clks,
+					    mcd->num_divider_clks, clk_data);
 unregister_composites:
 	if (mcd->composite_clks)
 		mtk_clk_unregister_composites(mcd->composite_clks,
@@ -599,6 +611,9 @@ static int __mtk_clk_simple_remove(struct platform_device *pdev,
 	of_clk_del_provider(node);
 	if (mcd->clks)
 		mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
+	if (mcd->divider_clks)
+		mtk_clk_unregister_dividers(mcd->divider_clks,
+					    mcd->num_divider_clks, clk_data);
 	if (mcd->composite_clks)
 		mtk_clk_unregister_composites(mcd->composite_clks,
 					      mcd->num_composite_clks, clk_data);
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index b8e0ff8f52fa..554aecdc1015 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -222,6 +222,8 @@ struct mtk_clk_desc {
 	size_t num_clks;
 	const struct mtk_composite *composite_clks;
 	size_t num_composite_clks;
+	const struct mtk_clk_divider *divider_clks;
+	size_t num_divider_clks;
 	const struct mtk_fixed_clk *fixed_clks;
 	size_t num_fixed_clks;
 	const struct mtk_fixed_factor *factor_clks;
-- 
2.39.1