From: Chen-Yu Tsai <wens@csie.org>
To: Maxime Ripard <maxime.ripard@free-electrons.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-sunxi@googlegroups.com
Subject: [PATCH v2 03/10] clk: sunxi-ng: mux: Get closest parent rate possible with CLK_SET_RATE_PARENT
Date: Sat, 28 Jan 2017 20:22:32 +0800 [thread overview]
Message-ID: <20170128122239.4480-4-wens@csie.org> (raw)
In-Reply-To: <20170128122239.4480-1-wens@csie.org>
If the CLK_SET_RATE_PARENT flag is set, we want to try getting the
closest parent rate.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
drivers/clk/sunxi-ng/ccu_mux.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/sunxi-ng/ccu_mux.c b/drivers/clk/sunxi-ng/ccu_mux.c
index d0d69c7eb516..c6bb1f523232 100644
--- a/drivers/clk/sunxi-ng/ccu_mux.c
+++ b/drivers/clk/sunxi-ng/ccu_mux.c
@@ -93,7 +93,18 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
if (!parent)
continue;
- parent_rate = clk_hw_get_rate(parent);
+ if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) {
+ struct clk_rate_request parent_req = *req;
+ int ret = __clk_determine_rate(parent, &parent_req);
+
+ if (ret)
+ continue;
+
+ parent_rate = parent_req.rate;
+ } else {
+ parent_rate = clk_hw_get_rate(parent);
+ }
+
adj_parent_rate = parent_rate;
ccu_mux_helper_adjust_parent_for_prediv(common, cm, i,
&adj_parent_rate);
--
2.11.0
next prev parent reply other threads:[~2017-01-28 12:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-28 12:22 [PATCH v2 00/10] clk: sunxi-ng: Add support for A80 CCUs Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 01/10] clk: sunxi-ng: mux: Fix determine_rate for mux clocks with pre-dividers Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 02/10] clk: sunxi-ng: mux: honor CLK_SET_RATE_NO_REPARENT flag Chen-Yu Tsai
2017-01-28 12:22 ` Chen-Yu Tsai [this message]
2017-01-28 12:22 ` [PATCH v2 04/10] clk: sunxi-ng: Support separately grouped PLL lock status register Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 05/10] clk: sunxi-ng: Add A80 CCU Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 06/10] clk: sunxi-ng: Add A80 USB CCU Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 07/10] clk: sunxi-ng: Add A80 Display Engine CCU Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 08/10] ARM: dts: sun8i-a23-q8-tablet: Drop pinmux setting for codec PA gpio Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 09/10] ARM: dts: sunxi: Remove no longer used pinctrl/sun4i-a10.h header Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 10/10] ARM: dts: sun9i: Switch to new clock bindings Chen-Yu Tsai
2017-01-30 7:42 ` [PATCH v2 00/10] clk: sunxi-ng: Add support for A80 CCUs Maxime Ripard
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=20170128122239.4480-4-wens@csie.org \
--to=wens@csie.org \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sunxi@googlegroups.com \
--cc=mark.rutland@arm.com \
--cc=maxime.ripard@free-electrons.com \
--cc=mturquette@baylibre.com \
--cc=robh+dt@kernel.org \
--cc=sboyd@codeaurora.org \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).