Hi,
This series addresses the power management for SAMA7G5 and also updates
the master clock prescaller and master clock divider drivers to accommodate
the requests at [1].
The power management part is implemented by adding
save_context()/restore_context() on each clock driver (patch 1/5). Since
the PM part is necessary only for backup mode (supported on SAMA5D2 and
SAMA7G5) the pmc.c has been adapted to call the
save_context()/restore_context() only on switches to/from backup mode
(patch 2/5).
Patch 3/5 adds the securam clock on SAMA7G5. This is necessary for
backup mode of SAMA7G5.
Patch 4/5 adds registers definitions for the new master clocks (MCK1..4) of
SAMA7G5 and adapt the clk-master.c. The defines exported in
include/linux/clk/at91_pmc.h will be also used by platform specific PM
code.
Patch 5/5 adpat the master clock divider and master clock prescaller
to address the requests at [1].
Thank you,
Claudiu Beznea
[1] https://lore.kernel.org/lkml/20210105104426.4tmgc2l3vyicwedd@vireshk-i7/
Claudiu Beznea (5):
clk: at91: re-factor clocks suspend/resume
clk: at91: pmc: execute suspend/resume only for backup mode
clk: at91: sama7g5: add securam's peripheral clock
clk: at91: clk-master: add register definition for sama7g5's master
clock
clk: at91: clk-master: update for dvfs
drivers/clk/at91/at91rm9200.c | 2 +-
drivers/clk/at91/at91sam9260.c | 2 +-
drivers/clk/at91/at91sam9g45.c | 2 +-
drivers/clk/at91/at91sam9n12.c | 2 +-
drivers/clk/at91/at91sam9rl.c | 2 +-
drivers/clk/at91/at91sam9x5.c | 2 +-
drivers/clk/at91/clk-generated.c | 45 +++-
drivers/clk/at91/clk-main.c | 66 +++++
drivers/clk/at91/clk-master.c | 395 +++++++++++++++++++++-------
drivers/clk/at91/clk-peripheral.c | 38 ++-
drivers/clk/at91/clk-pll.c | 37 +++
drivers/clk/at91/clk-programmable.c | 29 +-
drivers/clk/at91/clk-sam9x60-pll.c | 68 ++++-
drivers/clk/at91/clk-system.c | 20 ++
drivers/clk/at91/clk-usb.c | 27 ++
drivers/clk/at91/clk-utmi.c | 47 +++-
drivers/clk/at91/dt-compat.c | 2 +-
drivers/clk/at91/pmc.c | 175 +++---------
drivers/clk/at91/pmc.h | 27 +-
drivers/clk/at91/sam9x60.c | 2 +-
drivers/clk/at91/sama5d2.c | 2 +-
drivers/clk/at91/sama5d3.c | 2 +-
drivers/clk/at91/sama5d4.c | 2 +-
drivers/clk/at91/sama7g5.c | 3 +-
include/linux/clk/at91_pmc.h | 26 ++
25 files changed, 750 insertions(+), 275 deletions(-)
--
2.25.1
Add SECURAM's peripheral clock.
Signed-off-by: Claudiu Beznea <[email protected]>
---
drivers/clk/at91/sama7g5.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c
index a6e20b35960e..28e26fb90417 100644
--- a/drivers/clk/at91/sama7g5.c
+++ b/drivers/clk/at91/sama7g5.c
@@ -377,6 +377,7 @@ static const struct {
u8 id;
} sama7g5_periphck[] = {
{ .n = "pioA_clk", .p = "mck0", .id = 11, },
+ { .n = "securam_clk", .p = "mck0", .id = 18, },
{ .n = "sfr_clk", .p = "mck1", .id = 19, },
{ .n = "hsmc_clk", .p = "mck1", .id = 21, },
{ .n = "xdmac0_clk", .p = "mck1", .id = 22, },
--
2.25.1
On 24/03/2021 at 10:43, Claudiu Beznea wrote:
> Add SECURAM's peripheral clock.
>
> Signed-off-by: Claudiu Beznea <[email protected]>
Acked-by: Nicolas Ferre <[email protected]>
> ---
> drivers/clk/at91/sama7g5.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c
> index a6e20b35960e..28e26fb90417 100644
> --- a/drivers/clk/at91/sama7g5.c
> +++ b/drivers/clk/at91/sama7g5.c
> @@ -377,6 +377,7 @@ static const struct {
> u8 id;
> } sama7g5_periphck[] = {
> { .n = "pioA_clk", .p = "mck0", .id = 11, },
> + { .n = "securam_clk", .p = "mck0", .id = 18, },
> { .n = "sfr_clk", .p = "mck1", .id = 19, },
> { .n = "hsmc_clk", .p = "mck1", .id = 21, },
> { .n = "xdmac0_clk", .p = "mck1", .id = 22, },
>
Thanks,
Nicolas
--
Nicolas Ferre