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 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 index 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
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