linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
To: Stephen Boyd <sboyd@codeaurora.org>,
	Michael Turquette <mturquette@baylibre.com>
Cc: <linux-renesas-soc@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <linux-clk@vger.kernel.org>
Subject: [PATCH 3/3] clk: cs2000: select 12.20 High Accuracy on LFRatioCfg
Date: Tue, 18 Apr 2017 02:20:03 +0000	[thread overview]
Message-ID: <87pogaxxyb.wl%kuninori.morimoto.gx@renesas.com> (raw)
In-Reply-To: <87tw5mxy2h.wl%kuninori.morimoto.gx@renesas.com>


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 --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;
 }
 
-- 
1.9.1

  parent reply	other threads:[~2017-04-18  2:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-18  2:17 [PATCH 0/3] clk: cs2000: tidyup missing settings Kuninori Morimoto
2017-04-18  2:18 ` [PATCH 1/3] clk: cs2000: enable clock skipping mode Kuninori Morimoto
2017-04-18  2:19 ` [PATCH 2/3] clk: cs2000: tidyup DEVICE_CFG2 settings Kuninori Morimoto
2017-04-18  2:20 ` Kuninori Morimoto [this message]
2017-04-19 17:19 ` [PATCH 0/3] clk: cs2000: tidyup missing settings Stephen Boyd

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87pogaxxyb.wl%kuninori.morimoto.gx@renesas.com \
    --to=kuninori.morimoto.gx@renesas.com \
    --cc=linux-clk@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-renesas-soc@vger.kernel.org \
    --cc=mturquette@baylibre.com \
    --cc=sboyd@codeaurora.org \
    --subject='Re: [PATCH 3/3] clk: cs2000: select 12.20 High Accuracy on LFRatioCfg' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).