On 11.01.2022 14:53, Tudor Ambarus wrote:
> MCK1 feeds the External Bus Interface (EBI). EBI's clock rate is used
> to translate EBI's timmings to SMC timings, thus we need to handle MCK1
> in the EBI driver. Allow MCK1 to be referenced as a PMC_TYPE_CORE clock
> from phandle in DT.
>
> Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Reviewed-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
> ---
> drivers/clk/at91/sama7g5.c | 8 +++++++-
> include/dt-bindings/clock/at91.h | 1 +
> 2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c
> index 369dfafabbca..e43458673afb 100644
> --- a/drivers/clk/at91/sama7g5.c
> +++ b/drivers/clk/at91/sama7g5.c
> @@ -302,6 +302,7 @@ static const struct {
> * @ep_count: extra parents count
> * @ep_mux_table: mux table for extra parents
> * @id: clock id
> + * @eid: export index in sama7g5->chws[] array
> * @c: true if clock is critical and cannot be disabled
> */
> static const struct {
> @@ -311,6 +312,7 @@ static const struct {
> u8 ep_count;
> u8 ep_mux_table[4];
> u8 id;
> + u8 eid;
> u8 c;
> } sama7g5_mckx[] = {
> { .n = "mck1",
> @@ -319,6 +321,7 @@ static const struct {
> .ep_mux_table = { 5, },
> .ep_count = 1,
> .ep_chg_id = INT_MIN,
> + .eid = PMC_MCK1,
> .c = 1, },
>
> { .n = "mck2",
> @@ -913,7 +916,7 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
> if (IS_ERR(regmap))
> return;
>
> - sama7g5_pmc = pmc_data_allocate(PMC_CPU + 1,
> + sama7g5_pmc = pmc_data_allocate(PMC_MCK1 + 1,
> nck(sama7g5_systemck),
> nck(sama7g5_periphck),
> nck(sama7g5_gck), 8);
> @@ -1027,6 +1030,9 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
> goto err_free;
>
> alloc_mem[alloc_mem_size++] = mux_table;
> +
> + if (sama7g5_mckx[i].eid)
> + sama7g5_pmc->chws[sama7g5_mckx[i].eid] = hw;
> }
>
> hw = at91_clk_sama7g5_register_utmi(regmap, "utmick", "main_xtal");
> diff --git a/include/dt-bindings/clock/at91.h b/include/dt-bindings/clock/at91.h
> index 98e1b2ab6403..8498c0cd95fe 100644
> --- a/include/dt-bindings/clock/at91.h
> +++ b/include/dt-bindings/clock/at91.h
> @@ -35,6 +35,7 @@
> #define PMC_AUDIOIOPLL (PMC_MAIN + 7)
> #define PMC_ETHPLL (PMC_MAIN + 8)
> #define PMC_CPU (PMC_MAIN + 9)
> +#define PMC_MCK1 (PMC_MAIN + 10)
>
> #ifndef AT91_PMC_MOSCS
> #define AT91_PMC_MOSCS 0 /* MOSCS Flag */
