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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2019-02-19 18:01:56 +0100
committerStephen Boyd <sboyd@kernel.org>2019-04-25 20:43:15 +0200
commit5c16ffa795b7bcdbd73d5983482c5c0fe5566c06 (patch)
tree45309b0d5823585574e98aadb6fecbc24590ffd5 /drivers/clk/at91
parentclk: at91: modernize sckc binding (diff)
downloadlinux-5c16ffa795b7bcdbd73d5983482c5c0fe5566c06.tar.xz
linux-5c16ffa795b7bcdbd73d5983482c5c0fe5566c06.zip
clk: at91: sckc: handle different RC startup time
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> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/at91')
-rw-r--r--drivers/clk/at91/sckc.c17
1 files 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);