diff mbox

[3/3] clk: cs2000: select 12.20 High Accuracy on LFRatioCfg

Message ID 87pogaxxyb.wl%kuninori.morimoto.gx@renesas.com (mailing list archive)
State Accepted
Delegated to: Stephen Boyd
Headers show

Commit Message

Kuninori Morimoto April 18, 2017, 2:20 a.m. UTC 
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

cs2000 can select Static/Dynamic ratio based Frequency Synthesizer
Mode, it can select 20.12 High Multiplier interpret for 32-bit
User Defined Ratio if Dynamic ratio mode. Otherwise it should select
12.20 High Accuracy mode.
Current cs2000 is supporting Static ratio mode only, so it should
select 12.20 High Accuracy mode, not 20.12 High Multiplier mode.
This patch fixes it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 drivers/clk/clk-cs2000-cp.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox

Patch

diff --git a/drivers/clk/clk-cs2000-cp.c b/drivers/clk/clk-cs2000-cp.c
index f3ab0ca..c54baed 100644
--- a/drivers/clk/clk-cs2000-cp.c
+++ b/drivers/clk/clk-cs2000-cp.c
@@ -60,6 +60,11 @@ 
 #define REFCLKDIV(x)	(((x) & 0x3) << 3)
 #define REFCLKDIV_MASK	REFCLKDIV(0x3)
 
+/* FUNC_CFG2 */
+#define LFRATIO_MASK	(1 << 3)
+#define LFRATIO_20_12	(0 << 3)
+#define LFRATIO_12_20	(1 << 3)
+
 #define CH_SIZE_ERR(ch)		((ch < 0) || (ch >= CH_MAX))
 #define hw_to_priv(_hw)		container_of(_hw, struct cs2000_priv, hw)
 #define priv_to_client(priv)	(priv->client)
@@ -130,6 +135,12 @@  static int cs2000_enable_dev_config(struct cs2000_priv *priv, bool enable)
 	if (ret < 0)
 		return ret;
 
+	/* FIXME: for Static ratio mode */
+	ret = cs2000_bset(priv, FUNC_CFG2, LFRATIO_MASK,
+			  LFRATIO_12_20);
+	if (ret < 0)
+		return ret;
+
 	return 0;
 }