From: Chris Brandt <chris.brandt@renesas.com>
To: Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>
Cc: <linux-spi@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-renesas-soc@vger.kernel.org>, <linux-clk@vger.kernel.org>,
Mason Yang <masonccyang@mxic.com.tw>,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
Chris Brandt <chris.brandt@renesas.com>
Subject: [PATCH 1/6] clk: renesas: mstp: Add critical clock from device tree support
Date: Mon, 2 Dec 2019 22:45:14 -0500 [thread overview]
Message-ID: <20191203034519.5640-2-chris.brandt@renesas.com> (raw)
In-Reply-To: <20191203034519.5640-1-chris.brandt@renesas.com>
Allow critical clocks to be specified in the Device Tree.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
drivers/clk/renesas/clk-mstp.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c
index 003e9ce45757..8e28e9671265 100644
--- a/drivers/clk/renesas/clk-mstp.c
+++ b/drivers/clk/renesas/clk-mstp.c
@@ -148,7 +148,7 @@ static const struct clk_ops cpg_mstp_clock_ops = {
static struct clk * __init cpg_mstp_clock_register(const char *name,
const char *parent_name, unsigned int index,
- struct mstp_clock_group *group)
+ struct mstp_clock_group *group, unsigned long flags)
{
struct clk_init_data init;
struct mstp_clock *clock;
@@ -160,12 +160,12 @@ static struct clk * __init cpg_mstp_clock_register(const char *name,
init.name = name;
init.ops = &cpg_mstp_clock_ops;
- init.flags = CLK_SET_RATE_PARENT;
+ init.flags = CLK_SET_RATE_PARENT | flags;
/* INTC-SYS is the module clock of the GIC, and must not be disabled */
- if (!strcmp(name, "intc-sys")) {
- pr_debug("MSTP %s setting CLK_IS_CRITICAL\n", name);
+ if (!strcmp(name, "intc-sys"))
init.flags |= CLK_IS_CRITICAL;
- }
+ if (init.flags & CLK_IS_CRITICAL)
+ pr_debug("MSTP %s setting CLK_IS_CRITICAL\n", name);
init.parent_names = &parent_name;
init.num_parents = 1;
@@ -187,6 +187,7 @@ static void __init cpg_mstp_clocks_init(struct device_node *np)
const char *idxname;
struct clk **clks;
unsigned int i;
+ unsigned long flags;
group = kzalloc(struct_size(group, clks, MSTP_MAX_CLOCKS), GFP_KERNEL);
if (!group)
@@ -239,8 +240,11 @@ static void __init cpg_mstp_clocks_init(struct device_node *np)
continue;
}
+ flags = 0;
+ of_clk_detect_critical(np, i, &flags);
+
clks[clkidx] = cpg_mstp_clock_register(name, parent_name,
- clkidx, group);
+ clkidx, group, flags);
if (!IS_ERR(clks[clkidx])) {
group->data.clk_num = max(group->data.clk_num,
clkidx + 1);
--
2.23.0
next prev parent reply other threads:[~2019-12-03 4:07 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-03 3:45 [PATCH 0/6] spi: Add Renesas SPIBSC controller Chris Brandt
2019-12-03 3:45 ` Chris Brandt [this message]
2019-12-03 18:32 ` [PATCH 1/6] clk: renesas: mstp: Add critical clock from device tree support Geert Uytterhoeven
2019-12-03 18:46 ` Chris Brandt
2019-12-03 18:51 ` Geert Uytterhoeven
2019-12-03 3:45 ` [PATCH 2/6] ARM: dts: r7s72100: Add SPIBSC clocks Chris Brandt
2019-12-03 18:42 ` Geert Uytterhoeven
2019-12-03 18:57 ` Chris Brandt
2019-12-03 19:12 ` Geert Uytterhoeven
2019-12-04 8:38 ` Lee Jones
2019-12-04 9:03 ` Geert Uytterhoeven
2019-12-04 9:47 ` Lee Jones
2019-12-04 11:00 ` Chris Brandt
2019-12-03 3:45 ` [PATCH 3/6] clk: renesas: r7s9210: Add SPIBSC clock Chris Brandt
2019-12-03 18:49 ` Geert Uytterhoeven
2019-12-03 19:09 ` Chris Brandt
2019-12-03 20:40 ` Geert Uytterhoeven
2019-12-04 3:09 ` Chris Brandt
2019-12-03 3:45 ` [PATCH 4/6] spi: Add SPIBSC driver Chris Brandt
2019-12-03 14:19 ` Mark Brown
2019-12-03 15:00 ` Chris Brandt
2019-12-03 18:29 ` Geert Uytterhoeven
2019-12-04 11:25 ` Mark Brown
2019-12-04 12:14 ` Geert Uytterhoeven
2019-12-04 15:51 ` Chris Brandt
2019-12-04 16:49 ` Mark Brown
2019-12-03 18:28 ` Geert Uytterhoeven
2019-12-04 11:18 ` Mark Brown
2019-12-04 22:12 ` Chris Brandt
2019-12-03 3:45 ` [PATCH 5/6] ARM: dts: r7s9210: Add SPIBSC Device support Chris Brandt
2019-12-03 18:59 ` Geert Uytterhoeven
2019-12-03 22:38 ` Chris Brandt
2019-12-04 7:57 ` Geert Uytterhoeven
2019-12-04 11:04 ` Chris Brandt
2019-12-03 3:45 ` [PATCH 6/6] dt-bindings: spi: Document Renesas SPIBSC bindings Chris Brandt
2019-12-03 9:14 ` Sergei Shtylyov
2019-12-03 13:27 ` Chris Brandt
2019-12-03 16:04 ` Sergei Shtylyov
2019-12-03 16:35 ` Chris Brandt
2019-12-03 18:57 ` Geert Uytterhoeven
2019-12-03 20:39 ` Geert Uytterhoeven
2019-12-04 2:54 ` Chris Brandt
2019-12-04 8:56 ` Geert Uytterhoeven
2019-12-04 13:31 ` Chris Brandt
2019-12-05 15:48 ` Geert Uytterhoeven
2019-12-05 16:00 ` Chris Brandt
2019-12-04 8:40 ` Geert Uytterhoeven
2019-12-03 22:33 ` Chris Brandt
2019-12-04 8:43 ` Geert Uytterhoeven
2019-12-04 11:19 ` Chris Brandt
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=20191203034519.5640-2-chris.brandt@renesas.com \
--to=chris.brandt@renesas.com \
--cc=broonie@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=geert+renesas@glider.be \
--cc=linux-clk@vger.kernel.org \
--cc=linux-renesas-soc@vger.kernel.org \
--cc=linux-spi@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=masonccyang@mxic.com.tw \
--cc=mturquette@baylibre.com \
--cc=robh+dt@kernel.org \
--cc=sboyd@kernel.org \
--cc=sergei.shtylyov@cogentembedded.com \
/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).