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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2017-04-18 02:18:19 +0000
committerStephen Boyd <sboyd@codeaurora.org>2017-04-19 10:18:52 -0700
commitd127967a7b18598b8922bf9a4b984fae899787dc (patch)
tree019cd10427ab72fd1968d6032648766a9a50af92 /drivers/clk
parent4a43e35d19c1379c255a8abab3d6303ed382dcf1 (diff)
downloadlinux-d127967a7b18598b8922bf9a4b984fae899787dc.tar.bz2
clk: cs2000: enable clock skipping mode
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>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/clk-cs2000-cp.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/clk/clk-cs2000-cp.c b/drivers/clk/clk-cs2000-cp.c
index 4df38c5ff96c..a8fa6bdd0e55 100644
--- a/drivers/clk/clk-cs2000-cp.c
+++ b/drivers/clk/clk-cs2000-cp.c
@@ -54,6 +54,7 @@
#define ENDEV2 (0x1)
/* FUNC_CFG1 */
+#define CLKSKIPEN (1 << 7)
#define REFCLKDIV(x) (((x) & 0x3) << 3)
#define REFCLKDIV_MASK REFCLKDIV(0x3)
@@ -122,6 +123,11 @@ static int cs2000_enable_dev_config(struct cs2000_priv *priv, bool enable)
if (ret < 0)
return ret;
+ ret = cs2000_bset(priv, FUNC_CFG1, CLKSKIPEN,
+ enable ? CLKSKIPEN : 0);
+ if (ret < 0)
+ return ret;
+
return 0;
}