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clk: gate: support sandbox

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Introduce io_gate_val for sandbox clk gate test usage

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2019-07-31 07:01:57 +00:00 committed by Lukasz Majewski
parent 0009763588
commit 2b12957d01
2 changed files with 14 additions and 0 deletions
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11
drivers/clk/clk-gate.c
View File

@ -55,7 +55,11 @@ static void clk_gate_endisable(struct clk *clk, int enable)
if (set)
reg |= BIT(gate->bit_idx);
} else {
#if CONFIG_IS_ENABLED(SANDBOX_CLK_CCF)
reg = gate->io_gate_val;
#else
reg = readl(gate->reg);
#endif
if (set)
reg |= BIT(gate->bit_idx);
@ -86,7 +90,11 @@ int clk_gate_is_enabled(struct clk *clk)
dev_get_clk_ptr(clk->dev) : clk);
u32 reg;
#if CONFIG_IS_ENABLED(SANDBOX_CLK_CCF)
reg = gate->io_gate_val;
#else
reg = readl(gate->reg);
#endif
/* if a set bit disables this clk, flip it before masking */
if (gate->flags & CLK_GATE_SET_TO_DISABLE)
@ -128,6 +136,9 @@ struct clk *clk_register_gate(struct device *dev, const char *name,
gate->reg = reg;
gate->bit_idx = bit_idx;
gate->flags = clk_gate_flags;
#if CONFIG_IS_ENABLED(SANDBOX_CLK_CCF)
gate->io_gate_val = *(u32 *)reg;
#endif
clk = &gate->clk;

3
include/linux/clk-provider.h
View File

@ -75,6 +75,9 @@ struct clk_gate {
void __iomem *reg;
u8 bit_idx;
u8 flags;
#if CONFIG_IS_ENABLED(SANDBOX_CLK_CCF)
u32 io_gate_val;
#endif
};
#define to_clk_gate(_clk) container_of(_clk, struct clk_gate, clk)