From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Stephen Boyd <sboyd@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>,
Claudiu Beznea <claudiu.beznea@microchip.com>,
Michael Turquette <mturquette@baylibre.com>,
linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH 3/7] clk: at91: sckc: handle different RC startup time
Date: Tue, 19 Feb 2019 18:01:56 +0100 [thread overview]
Message-ID: <20190219170200.3608-4-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20190219170200.3608-1-alexandre.belloni@bootlin.com>
The sama5d3 slow RC oscillator as a different startup time than all the
previous SoCs. Handle that using its own compatible.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
drivers/clk/at91/sckc.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c
index 470aef586f57..e76b1d64e905 100644
--- a/drivers/clk/at91/sckc.c
+++ b/drivers/clk/at91/sckc.c
@@ -321,7 +321,8 @@ at91_clk_register_sam9x5_slow(void __iomem *sckcr,
return hw;
}
-static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
+static void __init at91sam9x5_sckc_register(struct device_node *np,
+ unsigned int rc_osc_startup_us)
{
const char *parent_names[2] = { "slow_rc_osc", "slow_osc" };
void __iomem *regbase = of_iomap(np, 0);
@@ -334,7 +335,7 @@ static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
return;
hw = at91_clk_register_slow_rc_osc(regbase, parent_names[0], 32768,
- 50000000, 75);
+ 50000000, rc_osc_startup_us);
if (IS_ERR(hw))
return;
@@ -371,9 +372,21 @@ static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
if (child)
of_clk_add_hw_provider(child, of_clk_hw_simple_get, hw);
}
+
+static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
+{
+ at91sam9x5_sckc_register(np, 75);
+}
CLK_OF_DECLARE(at91sam9x5_clk_sckc, "atmel,at91sam9x5-sckc",
of_at91sam9x5_sckc_setup);
+static void __init of_sama5d3_sckc_setup(struct device_node *np)
+{
+ at91sam9x5_sckc_register(np, 500);
+}
+CLK_OF_DECLARE(sama5d3_clk_sckc, "atmel,sama5d3-sckc",
+ of_sama5d3_sckc_setup);
+
static int clk_sama5d4_slow_osc_prepare(struct clk_hw *hw)
{
struct clk_sama5d4_slow_osc *osc = to_clk_sama5d4_slow_osc(hw);
--
2.20.1
next prev parent reply other threads:[~2019-02-19 17:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-19 17:01 [PATCH 0/7] clk: at91: rework sckc bindings Alexandre Belloni
2019-02-19 17:01 ` [PATCH 1/7] dt-bindings: clock: at91: new " Alexandre Belloni
2019-03-25 21:49 ` Rob Herring
2019-04-25 18:43 ` Stephen Boyd
2019-02-19 17:01 ` [PATCH 2/7] clk: at91: modernize sckc binding Alexandre Belloni
2019-04-25 18:43 ` Stephen Boyd
2019-02-19 17:01 ` Alexandre Belloni [this message]
2019-04-25 18:43 ` [PATCH 3/7] clk: at91: sckc: handle different RC startup time Stephen Boyd
2019-02-19 17:01 ` [PATCH 4/7] ARM: dts: at91: at91sam9x5: switch to new sckc bindings Alexandre Belloni
2019-02-19 17:01 ` [PATCH 5/7] ARM: dts: at91: at91sam9g45: " Alexandre Belloni
2019-02-19 17:01 ` [PATCH 6/7] ARM: dts: at91: at91sam9rl: " Alexandre Belloni
2019-02-19 17:02 ` [PATCH 7/7] ARM: dts: at91: sama5d3: " Alexandre Belloni
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