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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>
This commit is contained in:
Alexandre Belloni 2019-02-19 18:01:56 +01:00 committed by Stephen Boyd
parent 45b5ec8498
commit 5c16ffa795
1 changed files with 15 additions and 2 deletions
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17
drivers/clk/at91/sckc.c
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@ -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);