[PATCH v4 3/5] clk: rockchip: add a clock-type for muxes based in the pmugrf

[Elaine Zhang <zhangqing@rock-chips.com>]

Rockchip socs often have some tiny number of muxes not controlled from
the core clock controller but through bits set in the pmugrf.
Use MUXPMUGRF() to cover this special clock-type.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
---
 drivers/clk/rockchip/clk.c |  9 +++++++++
 drivers/clk/rockchip/clk.h | 17 +++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c
index 8f77c3f9fab7..4f238f2851ac 100644
--- a/drivers/clk/rockchip/clk.c
+++ b/drivers/clk/rockchip/clk.c
@@ -407,6 +407,8 @@ struct rockchip_clk_provider * __init rockchip_clk_init(struct device_node *np,
 
 	ctx->grf = syscon_regmap_lookup_by_phandle(ctx->cru_node,
 						   "rockchip,grf");
+	ctx->pmugrf = syscon_regmap_lookup_by_phandle(ctx->cru_node,
+						   "rockchip,pmugrf");
 
 	return ctx;
 
@@ -482,6 +484,13 @@ void __init rockchip_clk_register_branches(
 				list->mux_shift, list->mux_width,
 				list->mux_flags);
 			break;
+		case branch_muxpmugrf:
+			clk = rockchip_clk_register_muxgrf(list->name,
+				list->parent_names, list->num_parents,
+				flags, ctx->pmugrf, list->muxdiv_offset,
+				list->mux_shift, list->mux_width,
+				list->mux_flags);
+			break;
 		case branch_divider:
 			if (list->div_table)
 				clk = clk_register_divider_table(NULL,
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
index 0d401ce09a54..ae059b7744f9 100644
--- a/drivers/clk/rockchip/clk.h
+++ b/drivers/clk/rockchip/clk.h
@@ -238,6 +238,7 @@ struct rockchip_clk_provider {
 	struct clk_onecell_data clk_data;
 	struct device_node *cru_node;
 	struct regmap *grf;
+	struct regmap *pmugrf;
 	spinlock_t lock;
 };
 
@@ -390,6 +391,7 @@ enum rockchip_clk_branch_type {
 	branch_composite,
 	branch_mux,
 	branch_muxgrf,
+	branch_muxpmugrf,
 	branch_divider,
 	branch_fraction_divider,
 	branch_gate,
@@ -662,6 +664,21 @@ struct rockchip_clk_branch {
 		.gate_offset	= -1,				\
 	}
 
+#define MUXPMUGRF(_id, cname, pnames, f, o, s, w, mf)		\
+	{							\
+		.id		= _id,				\
+		.branch_type	= branch_muxpmugrf,		\
+		.name		= cname,			\
+		.parent_names	= pnames,			\
+		.num_parents	= ARRAY_SIZE(pnames),		\
+		.flags		= f,				\
+		.muxdiv_offset	= o,				\
+		.mux_shift	= s,				\
+		.mux_width	= w,				\
+		.mux_flags	= mf,				\
+		.gate_offset	= -1,				\
+	}
+
 #define DIV(_id, cname, pname, f, o, s, w, df)			\
 	{							\
 		.id		= _id,				\
-- 
2.17.1