[PATCH 4/9] arm: imx: imx8mm: add enable_pwm_clk function

[Michael Nazzareno Trimarchi]

Hi

On Wed, Mar 16, 2022 at 10:02 AM Tommaso Merciai
<tommaso.merciai at amarulasolutions.com> wrote:
>
> Add function to enable_pwm_clck function into clock_imx8mm.c. This
> function first configure, then enable pwm1 clock from clock control
> register. The following configuration is used:
>
> source(0) -> 24 MHz ref clock
> div(0)    -> no division for this clock
>
> References:
>  - iMX8MMRM.pdf p 303
>
> Signed-off-by: Tommaso Merciai <tommaso.merciai at amarulasolutions.com>
> ---
>  arch/arm/mach-imx/imx8m/clock_imx8mm.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
>
> diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mm.c b/arch/arm/mach-imx/imx8m/clock_imx8mm.c
> index 49945faf2c..5f2eddf715 100644
> --- a/arch/arm/mach-imx/imx8m/clock_imx8mm.c
> +++ b/arch/arm/mach-imx/imx8m/clock_imx8mm.c
> @@ -313,6 +313,17 @@ void enable_usboh3_clk(unsigned int enable)
>         }
>  }
>
> +void enable_pwm_clk(unsigned char enable)
> +{
> +       if (enable) {
> +               clock_enable(CCGR_PWM1, false);
> +               clock_set_target_val(PWM1_CLK_ROOT, CLK_ROOT_ON | CLK_ROOT_SOURCE_SEL(0) |CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1));
> +               clock_enable(CCGR_PWM1, true);
> +       } else {
> +               clock_enable(CCGR_PWM1, false);
> +       }
> +}
> +

Show not be somenthing like
enable_pwm_clk(enum pwm_id, bool enable)

?

>  void init_uart_clk(u32 index)
>  {
>         /*
> --
> 2.25.1
>


-- 
Michael Nazzareno Trimarchi
Co-Founder & Chief Executive Officer
M. +39 347 913 2170
michael at amarulasolutions.com
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