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clk: cs2000: enable clock skipping mode

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CLK_IN skipping mode allows the PLL to maintain lock even when the
CLK_IN signal has missing pulses for up to 20 ms (t CS) at a time.
This patch enables it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Kuninori Morimoto
2017-04-18 02:18:19 +00:00
committed by Stephen Boyd
parent 4a43e35d19
commit d127967a7b
1 changed files with 6 additions and 0 deletions
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6
drivers/clk/clk-cs2000-cp.c
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@@ -54,6 +54,7 @@
#define ENDEV2 (0x1) #define ENDEV2 (0x1)
/* FUNC_CFG1 */ /* FUNC_CFG1 */
#define CLKSKIPEN (1 << 7)
#define REFCLKDIV(x) (((x) & 0x3) << 3) #define REFCLKDIV(x) (((x) & 0x3) << 3)
#define REFCLKDIV_MASK REFCLKDIV(0x3) #define REFCLKDIV_MASK REFCLKDIV(0x3)
@@ -122,6 +123,11 @@ static int cs2000_enable_dev_config(struct cs2000_priv *priv, bool enable)
if (ret < 0) if (ret < 0)
return ret; return ret;
ret = cs2000_bset(priv, FUNC_CFG1, CLKSKIPEN,
enable ? CLKSKIPEN : 0);
if (ret < 0)
return ret;
return 0; return 0;
} }