linux-kernel - [PATCH v4 19/23] clk: mediatek: clk-mt8192: Migrate topckgen to mtk_clk_simple

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Message-Id: <20230120092053.182923-20-angelogioacchino.delregno@collabora.com>
Date:   Fri, 20 Jan 2023 10:20:49 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     mturquette@...libre.com
Cc:     sboyd@...nel.org, matthias.bgg@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org,
        angelogioacchino.delregno@...labora.com, wenst@...omium.org,
        johnson.wang@...iatek.com, miles.chen@...iatek.com,
        fparent@...libre.com, chun-jie.chen@...iatek.com,
        sam.shih@...iatek.com, y.oudjana@...tonmail.com,
        nfraprado@...labora.com, rex-bc.chen@...iatek.com,
        ryder.lee@...nel.org, daniel@...rotopia.org,
        jose.exposito89@...il.com, yangyingliang@...wei.com,
        pablo.sun@...iatek.com, msp@...libre.com, weiyi.lu@...iatek.com,
        ikjn@...omium.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        kernel@...labora.com
Subject: [PATCH v4 19/23] clk: mediatek: clk-mt8192: Migrate topckgen to mtk_clk_simple_probe()

Since the common simple probe function for MediaTek clock drivers can
now register the MFG MUX notifier, it's possible to migrate MT8192's
topckgen to that, allowing for some code size reduction.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Reviewed-by: Chen-Yu Tsai <wenst@...omium.org>
Tested-by: Miles Chen <miles.chen@...iatek.com>
---
 drivers/clk/mediatek/clk-mt8192.c | 85 +++++++------------------------
 1 file changed, 17 insertions(+), 68 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt8192.c b/drivers/clk/mediatek/clk-mt8192.c
index 1ffff53bbe90..61299960d28a 100644
--- a/drivers/clk/mediatek/clk-mt8192.c
+++ b/drivers/clk/mediatek/clk-mt8192.c
@@ -1064,71 +1064,6 @@ static int clk_mt8192_reg_mfg_mux_notifier(struct device *dev, struct clk *clk)
 	return devm_mtk_clk_mux_notifier_register(dev, clk, mfg_mux_nb);
 }
 
-static int clk_mt8192_top_probe(struct platform_device *pdev)
-{
-	struct device_node *node = pdev->dev.of_node;
-	struct clk_hw_onecell_data *top_clk_data;
-	int r;
-	void __iomem *base;
-
-	base = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(base))
-		return PTR_ERR(base);
-
-	top_clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
-	if (!top_clk_data)
-		return -ENOMEM;
-
-	r = mtk_clk_register_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks), top_clk_data);
-	if (r)
-		return r;
-
-	r = mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs), top_clk_data);
-	if (r)
-		goto unregister_fixed_clks;
-
-	r = mtk_clk_register_muxes(&pdev->dev, top_mtk_muxes,
-				   ARRAY_SIZE(top_mtk_muxes), node,
-				   &mt8192_clk_lock, top_clk_data);
-	if (r)
-		goto unregister_factors;
-
-	r = mtk_clk_register_composites(&pdev->dev, top_muxes,
-					ARRAY_SIZE(top_muxes), base,
-					&mt8192_clk_lock, top_clk_data);
-	if (r)
-		goto unregister_muxes;
-
-	r = mtk_clk_register_gates(&pdev->dev, node, top_clks,
-				   ARRAY_SIZE(top_clks), top_clk_data);
-	if (r)
-		goto unregister_top_composites;
-
-	r = clk_mt8192_reg_mfg_mux_notifier(&pdev->dev,
-					    top_clk_data->hws[CLK_TOP_MFG_PLL_SEL]->clk);
-	if (r)
-		goto unregister_gates;
-
-	r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, top_clk_data);
-	if (r)
-		goto unregister_gates;
-
-	return 0;
-
-unregister_gates:
-	mtk_clk_unregister_gates(top_clks, ARRAY_SIZE(top_clks), top_clk_data);
-unregister_top_composites:
-	mtk_clk_unregister_composites(top_muxes, ARRAY_SIZE(top_muxes), top_clk_data);
-unregister_muxes:
-	mtk_clk_unregister_muxes(top_mtk_muxes, ARRAY_SIZE(top_mtk_muxes), top_clk_data);
-unregister_factors:
-	mtk_clk_unregister_factors(top_divs, ARRAY_SIZE(top_divs), top_clk_data);
-unregister_fixed_clks:
-	mtk_clk_unregister_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks),
-				      top_clk_data);
-	return r;
-}
-
 static int clk_mt8192_apmixed_probe(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -1162,9 +1097,6 @@ static const struct of_device_id of_match_clk_mt8192[] = {
 	{
 		.compatible = "mediatek,mt8192-apmixedsys",
 		.data = clk_mt8192_apmixed_probe,
-	}, {
-		.compatible = "mediatek,mt8192-topckgen",
-		.data = clk_mt8192_top_probe,
 	}, {
 		/* sentinel */
 	}
@@ -1197,9 +1129,26 @@ static const struct mtk_clk_desc peri_desc = {
 	.num_clks = ARRAY_SIZE(peri_clks),
 };
 
+static const struct mtk_clk_desc topck_desc = {
+	.fixed_clks = top_fixed_clks,
+	.num_fixed_clks = ARRAY_SIZE(top_fixed_clks),
+	.factor_clks = top_divs,
+	.num_factor_clks = ARRAY_SIZE(top_divs),
+	.mux_clks = top_mtk_muxes,
+	.num_mux_clks = ARRAY_SIZE(top_mtk_muxes),
+	.composite_clks = top_muxes,
+	.num_composite_clks = ARRAY_SIZE(top_muxes),
+	.clks = top_clks,
+	.num_clks = ARRAY_SIZE(top_clks),
+	.clk_lock = &mt8192_clk_lock,
+	.clk_notifier_func = clk_mt8192_reg_mfg_mux_notifier,
+	.mfg_clk_idx = CLK_TOP_MFG_PLL_SEL,
+};
+
 static const struct of_device_id of_match_clk_mt8192_simple[] = {
 	{ .compatible = "mediatek,mt8192-infracfg", .data = &infra_desc },
 	{ .compatible = "mediatek,mt8192-pericfg", .data = &peri_desc },
+	{ .compatible = "mediatek,mt8192-topckgen", .data = &topck_desc },
 	{ /* sentinel */ }
 };
 
-- 
2.39.0