Re: [PATCH 08/19] clk: at91: sam9x60: fix main rc oscillator frequency

Alexandre Belloni
2020-07-17T09:18:22Z

On 15/07/2020 14:24:16+0300, Claudiu Beznea wrote:
> Main RC oscillator frequency is 12MHz according to datasheet
> (chapter 27.2).
>
> Fixes: 01e2113de9a52 ("clk: at91: add sam9x60 pmc driver")
> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

For the record I got that value from:
https://github.com/linux4sam/linux-at91/blob/c5fcb086200dc3b2e4a2b306778c6c7283d95755/arch/arm/boot/dts/sam9x60.dtsi#L701

> ---
> drivers/clk/at91/sam9x60.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/at91/sam9x60.c b/drivers/clk/at91/sam9x60.c
> index 633891b98d43..c8703d2a0886 100644
> --- a/drivers/clk/at91/sam9x60.c
> +++ b/drivers/clk/at91/sam9x60.c
> @@ -189,7 +189,7 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
> if (!sam9x60_pmc)
> return;
>
> - hw = at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 24000000,
> + hw = at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000000,
> 50000000);
> if (IS_ERR(hw))
> goto err_free;
> --
> 2.7.4
>

--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering