clk: mediatek: mt7622: 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 all the MT7622 clock drivers, instead of a
dedicated probe per controller.

The apmixedsys and topckgen 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 apmixedsys probe still performs
its SoC specific register tweaks. The infracfg and pericfg controllers share
the same ops, flags and (absent) bind() callback and are merged into a
single driver.

No functional change intended.

Signed-off-by: Julien Stephan <[email protected]>
Link: https://patch.msgid.link/20260715-b4-mtk-clk-cleanup-clock-gate-drivers-v2-4-23e907516010@baylibre.com
Signed-off-by: David Lechner <[email protected]>

1 files changed, 22 insertions, 38 deletions

diff --git a/drivers/clk/mediatek/clk-mt7622.c b/drivers/clk/mediatek/clk-mt7622.c
index 0a8185f9027..b085689f4d4 100644
--- a/drivers/clk/mediatek/clk-mt7622.c
+++ b/drivers/clk/mediatek/clk-mt7622.c
@@ -699,9 +699,10 @@ static int mt7622_mcucfg_probe(struct udevice *dev)
 static int mt7622_apmixedsys_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);
 	int ret;
 
-	ret = mtk_common_clk_init(dev, &mt7622_apmixed_clk_tree);
+	ret = mtk_common_clk_init(dev, tree);
 	if (ret)
 		return ret;
 
@@ -715,21 +716,6 @@ static int mt7622_apmixedsys_probe(struct udevice *dev)
 	return 0;
 }
 
-static int mt7622_topckgen_probe(struct udevice *dev)
-{
-	return mtk_common_clk_init(dev, &mt7622_topckgen_clk_tree);
-}
-
-static int mt7622_infracfg_probe(struct udevice *dev)
-{
-	return mtk_common_clk_init(dev, &mt7622_infra_clk_tree);
-}
-
-static int mt7622_pericfg_probe(struct udevice *dev)
-{
-	return mtk_common_clk_init(dev, &mt7622_peri_clk_tree);
-}
-
 static int mt7622_clk_probe(struct udevice *dev)
 {
 	const struct mtk_clk_tree *tree = (void *)dev_get_driver_data(dev);
@@ -751,22 +737,30 @@ static int mt7622_reset_bind(struct udevice *dev)
 }
 
 static const struct udevice_id mt7622_apmixed_compat[] = {
-	{ .compatible = "mediatek,mt7622-apmixedsys" },
+	{
+		.compatible = "mediatek,mt7622-apmixedsys",
+		.data = (ulong)&mt7622_apmixed_clk_tree,
+	},
 	{ }
 };
 
 static const struct udevice_id mt7622_topckgen_compat[] = {
-	{ .compatible = "mediatek,mt7622-topckgen" },
-	{ }
-};
-
-static const struct udevice_id mt7622_infracfg_compat[] = {
-	{ .compatible = "mediatek,mt7622-infracfg", },
+	{
+		.compatible = "mediatek,mt7622-topckgen",
+		.data = (ulong)&mt7622_topckgen_clk_tree,
+	},
 	{ }
 };
 
-static const struct udevice_id mt7622_pericfg_compat[] = {
-	{ .compatible = "mediatek,mt7622-pericfg", },
+static const struct udevice_id of_match_mt7622_infracfg[] = {
+	{
+		.compatible = "mediatek,mt7622-infracfg",
+		.data = (ulong)&mt7622_infra_clk_tree,
+	},
+	{
+		.compatible = "mediatek,mt7622-pericfg",
+		.data = (ulong)&mt7622_peri_clk_tree,
+	},
 	{ }
 };
 
@@ -823,7 +817,7 @@ U_BOOT_DRIVER(mt7622_clk_topckgen) = {
 	.id = UCLASS_CLK,
 	.of_match = mt7622_topckgen_compat,
 	.bind = mtk_common_clk_parent_bind,
-	.probe = mt7622_topckgen_probe,
+	.probe = mt7622_clk_probe,
 	.priv_auto	= sizeof(struct mtk_clk_priv),
 	.ops = &mtk_clk_topckgen_ops,
 	.flags = DM_FLAG_PRE_RELOC,
@@ -832,23 +826,13 @@ U_BOOT_DRIVER(mt7622_clk_topckgen) = {
 U_BOOT_DRIVER(mt7622_clk_infracfg) = {
 	.name = "mt7622-clock-infracfg",
 	.id = UCLASS_CLK,
-	.of_match = mt7622_infracfg_compat,
-	.probe = mt7622_infracfg_probe,
+	.of_match = of_match_mt7622_infracfg,
+	.probe = mt7622_clk_probe,
 	.priv_auto	= sizeof(struct mtk_clk_priv),
 	.ops = &mtk_clk_infrasys_ops,
 	.flags = DM_FLAG_PRE_RELOC,
 };
 
-U_BOOT_DRIVER(mt7622_clk_pericfg) = {
-	.name = "mt7622-clock-pericfg",
-	.id = UCLASS_CLK,
-	.of_match = mt7622_pericfg_compat,
-	.probe = mt7622_pericfg_probe,
-	.priv_auto = sizeof(struct mtk_clk_priv),
-	.ops = &mtk_clk_infrasys_ops,
-	.flags = DM_FLAG_PRE_RELOC,
-};
-
 U_BOOT_DRIVER(mt7622_clk_eth) = {
 	.name = "mt7622-clk-eth",
 	.id = UCLASS_CLK,