clk: mediatek: add CLK_XTAL support for clock driver
This adds the CLK_XTAL macro/flag to allow modeling clocks which are
directly connected to the xtal clock.
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
index 207a4c6..4303300 100644
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c
@@ -296,6 +296,7 @@
rate = mtk_clk_find_parent_rate(clk, fdiv->parent, NULL);
break;
+ case CLK_PARENT_XTAL:
default:
rate = priv->tree->xtal_rate;
}
@@ -314,6 +315,9 @@
rate = mtk_clk_find_parent_rate(clk, fdiv->parent,
priv->parent);
break;
+ case CLK_PARENT_XTAL:
+ rate = priv->tree->xtal_rate;
+ break;
default:
rate = mtk_clk_find_parent_rate(clk, fdiv->parent, NULL);
}
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index e7c61ae..48ce164 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -29,7 +29,8 @@
#define CLK_PARENT_APMIXED BIT(4)
#define CLK_PARENT_TOPCKGEN BIT(5)
#define CLK_PARENT_INFRASYS BIT(6)
-#define CLK_PARENT_MASK GENMASK(6, 4)
+#define CLK_PARENT_XTAL BIT(7)
+#define CLK_PARENT_MASK GENMASK(7, 4)
#define ETHSYS_HIFSYS_RST_CTRL_OFS 0x34