[PATCH 08/12] clk: mediatek: provide common clk init function for infrasys

[Christian Marangi]

Provide common clk init function for infrasys that defaults to topckgen
driver if clock-parent is not defined. This is the case for upstream
DTSI that doesn't provide this entry.

This is needed for infracfg driver that will make use of the unified
gates + muxes implementation.

Signed-off-by: Christian Marangi <ansuels...@gmail.com>
---
 drivers/clk/mediatek/clk-mtk.c | 22 ++++++++++++++++++----
 drivers/clk/mediatek/clk-mtk.h |  2 ++
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
index 4a057059407..8a7a61d6740 100644
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c
@@ -707,8 +707,9 @@ const struct clk_ops mtk_clk_gate_ops = {
        .get_rate = mtk_clk_gate_get_rate,
 };
 
-int mtk_common_clk_init(struct udevice *dev,
-                       const struct mtk_clk_tree *tree)
+static int mtk_common_clk_init_drv(struct udevice *dev,
+                                  const struct mtk_clk_tree *tree,
+                                  const struct driver *drv)
 {
        struct mtk_clk_priv *priv = dev_get_priv(dev);
        struct udevice *parent;
@@ -720,8 +721,7 @@ int mtk_common_clk_init(struct udevice *dev,
 
        ret = uclass_get_device_by_phandle(UCLASS_CLK, dev, "clock-parent", 
&parent);
        if (ret || !parent) {
-               ret = uclass_get_device_by_driver(UCLASS_CLK,
-                               DM_DRIVER_GET(mtk_clk_apmixedsys), &parent);
+               ret = uclass_get_device_by_driver(UCLASS_CLK, drv, &parent);
                if (ret || !parent)
                        return -ENOENT;
        }
@@ -732,6 +732,20 @@ int mtk_common_clk_init(struct udevice *dev,
        return 0;
 }
 
+int mtk_common_clk_init(struct udevice *dev,
+                       const struct mtk_clk_tree *tree)
+{
+       return mtk_common_clk_init_drv(dev, tree,
+                                      DM_DRIVER_GET(mtk_clk_apmixedsys));
+}
+
+int mtk_common_clk_infrasys_init(struct udevice *dev,
+                                const struct mtk_clk_tree *tree)
+{
+       return mtk_common_clk_init_drv(dev, tree,
+                                      DM_DRIVER_GET(mtk_clk_topckgen));
+}
+
 int mtk_common_clk_gate_init(struct udevice *dev,
                             const struct mtk_clk_tree *tree,
                             const struct mtk_gate *gates)
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index 4423689803a..e9c8a52ce8f 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -266,6 +266,8 @@ extern const struct clk_ops mtk_clk_gate_ops;
 
 int mtk_common_clk_init(struct udevice *dev,
                        const struct mtk_clk_tree *tree);
+int mtk_common_clk_infrasys_init(struct udevice *dev,
+                                const struct mtk_clk_tree *tree);
 int mtk_common_clk_gate_init(struct udevice *dev,
                             const struct mtk_clk_tree *tree,
                             const struct mtk_gate *gates);
-- 
2.45.1