linux-kernel - [PATCH v2 19/23] clk: mediatek: clk-mt8192: Migrate topckgen to mtk_clk_simple

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Date:   Fri, 23 Dec 2022 10:42:55 +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 v2 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>
---
 drivers/clk/mediatek/clk-mt8192.c | 80 +++++++------------------------
 1 file changed, 17 insertions(+), 63 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt8192.c b/drivers/clk/mediatek/clk-mt8192.c
index 702770326286..adde457e6277 100644
--- a/drivers/clk/mediatek/clk-mt8192.c
+++ b/drivers/clk/mediatek/clk-mt8192.c
@@ -1064,66 +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;
-
-	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(top_mtk_muxes, ARRAY_SIZE(top_mtk_muxes), node,
-				   &mt8192_clk_lock, top_clk_data, &pdev->dev);
-	if (r)
-		goto unregister_factors;
-
-	r = mtk_clk_register_composites(top_muxes, ARRAY_SIZE(top_muxes), base,
-					&mt8192_clk_lock, top_clk_data, &pdev->dev);
-	if (r)
-		goto unregister_muxes;
-
-	r = mtk_clk_register_gates(node, top_clks, ARRAY_SIZE(top_clks),
-					    top_clk_data, &pdev->dev);
-	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;
-
-	return of_clk_add_hw_provider(node, of_clk_hw_onecell_get,
-				      top_clk_data);
-
-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;
@@ -1158,9 +1098,6 @@ 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 */
 	}
@@ -1193,9 +1130,26 @@ 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