[PATCH 5/7] clk: mvebu: Embed syscore_ops in clock context

[Thierry Reding]

From: Thierry Reding <tred...@nvidia.com>

This enables the syscore callbacks to obtain the clock context without
relying on a separate global variable.

Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
 drivers/clk/mvebu/common.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/mvebu/common.c b/drivers/clk/mvebu/common.c
index ee77d307efe0..53712c3e5087 100644
--- a/drivers/clk/mvebu/common.c
+++ b/drivers/clk/mvebu/common.c
@@ -189,6 +189,7 @@ void __init mvebu_coreclk_setup(struct device_node *np,
 DEFINE_SPINLOCK(ctrl_gating_lock);
 
 struct clk_gating_ctrl {
+       struct syscore_ops syscore;
        spinlock_t *lock;
        struct clk **gates;
        int num_gates;
@@ -196,11 +197,15 @@ struct clk_gating_ctrl {
        u32 saved_reg;
 };
 
-static struct clk_gating_ctrl *ctrl;
+static inline struct clk_gating_ctrl *from_syscore(struct syscore_ops *ops)
+{
+       return container_of(ops, struct clk_gating_ctrl, syscore);
+}
 
 static struct clk *clk_gating_get_src(
        struct of_phandle_args *clkspec, void *data)
 {
+       struct clk_gating_ctrl *ctrl = data;
        int n;
 
        if (clkspec->args_count < 1)
@@ -217,23 +222,23 @@ static struct clk *clk_gating_get_src(
 
 static int mvebu_clk_gating_suspend(struct syscore_ops *ops)
 {
+       struct clk_gating_ctrl *ctrl = from_syscore(ops);
+
        ctrl->saved_reg = readl(ctrl->base);
        return 0;
 }
 
 static void mvebu_clk_gating_resume(struct syscore_ops *ops)
 {
+       struct clk_gating_ctrl *ctrl = from_syscore(ops);
+
        writel(ctrl->saved_reg, ctrl->base);
 }
 
-static struct syscore_ops clk_gate_syscore_ops = {
-       .suspend = mvebu_clk_gating_suspend,
-       .resume = mvebu_clk_gating_resume,
-};
-
 void __init mvebu_clk_gating_setup(struct device_node *np,
                                   const struct clk_gating_soc_desc *desc)
 {
+       static struct clk_gating_ctrl *ctrl;
        struct clk *clk;
        void __iomem *base;
        const char *default_parent = NULL;
@@ -284,7 +289,9 @@ void __init mvebu_clk_gating_setup(struct device_node *np,
 
        of_clk_add_provider(np, clk_gating_get_src, ctrl);
 
-       register_syscore_ops(&clk_gate_syscore_ops);
+       ctrl->syscore.suspend = mvebu_clk_gating_suspend;
+       ctrl->syscore.resume = mvebu_clk_gating_resume;
+       register_syscore_ops(&ctrl->syscore);
 
        return;
 gates_out:
-- 
2.48.1