clk: mediatek: cpumux: Clean up included headers

Some headers with the declaration of functions and structures aren't
directly included. Explicitly include them so that future changes to
other headers would not result in an unexpected build break.

On the header side, add forward declarations for any data structures
whose pointers are used in function signatures. No headers are
required.

Signed-off-by: Chen-Yu Tsai <[email protected]>
Reviewed-by: Miles Chen <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Chun-Jie Chen <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

2 files changed, 7 insertions, 0 deletions

diff --git a/drivers/clk/mediatek/clk-cpumux.c b/drivers/clk/mediatek/clk-cpumux.c
index 344c6399b22f..658aee789f44 100644
--- a/drivers/clk/mediatek/clk-cpumux.c
+++ b/drivers/clk/mediatek/clk-cpumux.c
@@ -5,8 +5,11 @@
  */
 
 #include <linux/clk-provider.h>
+#include <linux/container_of.h>
+#include <linux/err.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
+#include <linux/regmap.h>
 #include <linux/slab.h>
 
 #include "clk-mtk.h"
diff --git a/drivers/clk/mediatek/clk-cpumux.h b/drivers/clk/mediatek/clk-cpumux.h
index a538f2bbef0d..b07e89f7c283 100644
--- a/drivers/clk/mediatek/clk-cpumux.h
+++ b/drivers/clk/mediatek/clk-cpumux.h
@@ -7,6 +7,10 @@
 #ifndef __DRV_CLK_CPUMUX_H
 #define __DRV_CLK_CPUMUX_H
 
+struct clk_onecell_data;
+struct device_node;
+struct mtk_composite;
+
 int mtk_clk_register_cpumuxes(struct device_node *node,
 			      const struct mtk_composite *clks, int num,
 			      struct clk_onecell_data *clk_data);