clk: mediatek: mt7988: use driver data to store the clock tree

Pass each controller's struct mtk_clk_tree through the driver data and use
the generic probe function for the MT7988 clock drivers, instead of a
dedicated probe per controller.

The fixed-pll, topckgen and infracfg controllers keep their own U_BOOT_DRIVER
since they rely on dedicated ops and on the parent bind() callback, but they
now get their tree from the compatible data. The topckgen probe still
performs its SoC specific register tweaks.

No functional change intended.

Signed-off-by: Julien Stephan <[email protected]>
Link: https://patch.msgid.link/20260715-b4-mtk-clk-cleanup-clock-gate-drivers-v2-16-23e907516010@baylibre.com
Signed-off-by: David Lechner <[email protected]>

1 files changed, 20 insertions, 17 deletions

diff --git a/drivers/clk/mediatek/clk-mt7988.c b/drivers/clk/mediatek/clk-mt7988.c
index 6637ab4c287..2208185274a 100644
--- a/drivers/clk/mediatek/clk-mt7988.c
+++ b/drivers/clk/mediatek/clk-mt7988.c
@@ -846,31 +846,36 @@ static int mt7988_clk_probe(struct udevice *dev)
 }
 
 static const struct udevice_id mt7988_fixed_pll_compat[] = {
-	{ .compatible = "mediatek,mt7988-fixed-plls" },
-	{ .compatible = "mediatek,mt7988-apmixedsys" },
+	{
+		.compatible = "mediatek,mt7988-fixed-plls",
+		.data = (ulong)&mt7988_fixed_pll_clk_tree,
+	},
+	{
+		.compatible = "mediatek,mt7988-apmixedsys",
+		.data = (ulong)&mt7988_fixed_pll_clk_tree,
+	},
 	{}
 };
 
 static const struct udevice_id mt7988_topckgen_compat[] = {
-	{ .compatible = "mediatek,mt7988-topckgen" },
+	{
+		.compatible = "mediatek,mt7988-topckgen",
+		.data = (ulong)&mt7988_topckgen_clk_tree,
+	},
 	{}
 };
 
-static int mt7988_fixed_pll_probe(struct udevice *dev)
-{
-	return mtk_common_clk_init(dev, &mt7988_fixed_pll_clk_tree);
-}
-
 static int mt7988_topckgen_probe(struct udevice *dev)
 {
 	struct mtk_clk_priv *priv = dev_get_priv(dev);
+	const struct mtk_clk_tree *tree = (void *)dev_get_driver_data(dev);
 
 	priv->base = dev_read_addr_ptr(dev);
 	if (!priv->base)
 		return -ENOENT;
 
 	writel(MT7988_CLK_PDN_EN_WRITE, priv->base + MT7988_CLK_PDN);
-	return mtk_common_clk_init(dev, &mt7988_topckgen_clk_tree);
+	return mtk_common_clk_init(dev, tree);
 }
 
 U_BOOT_DRIVER(mt7988_clk_apmixedsys) = {
@@ -878,7 +883,7 @@ U_BOOT_DRIVER(mt7988_clk_apmixedsys) = {
 	.id = UCLASS_CLK,
 	.of_match = mt7988_fixed_pll_compat,
 	.bind = mtk_common_clk_parent_bind,
-	.probe = mt7988_fixed_pll_probe,
+	.probe = mt7988_clk_probe,
 	.priv_auto = sizeof(struct mtk_clk_priv),
 	.ops = &mtk_clk_fixed_pll_ops,
 	.flags = DM_FLAG_PRE_RELOC,
@@ -896,21 +901,19 @@ U_BOOT_DRIVER(mt7988_clk_topckgen) = {
 };
 
 static const struct udevice_id mt7988_infracfg_compat[] = {
-	{ .compatible = "mediatek,mt7988-infracfg" },
+	{
+		.compatible = "mediatek,mt7988-infracfg",
+		.data = (ulong)&mt7988_infracfg_clk_tree,
+	},
 	{}
 };
 
-static int mt7988_infracfg_probe(struct udevice *dev)
-{
-	return mtk_common_clk_init(dev, &mt7988_infracfg_clk_tree);
-}
-
 U_BOOT_DRIVER(mt7988_clk_infracfg) = {
 	.name = "mt7988-clock-infracfg",
 	.id = UCLASS_CLK,
 	.of_match = mt7988_infracfg_compat,
 	.bind = mtk_common_clk_parent_bind,
-	.probe = mt7988_infracfg_probe,
+	.probe = mt7988_clk_probe,
 	.priv_auto = sizeof(struct mtk_clk_priv),
 	.ops = &mtk_clk_infrasys_ops,
 	.flags = DM_FLAG_PRE_RELOC,