diff options
| author | Alex Elder <elder@riscstar.com> | 2025-07-02 06:37:05 -0500 |
|---|---|---|
| committer | Yixun Lan <dlan@gentoo.org> | 2025-07-03 23:24:00 +0800 |
| commit | 988543522ebd6a9af53c288833503f0501e401b0 (patch) | |
| tree | 040510607d2a77ddd98c3961cb375f0b9470675b /include | |
| parent | bf6239ddaa6a73a44cd8ea3afec5fc82ed900038 (diff) | |
clk: spacemit: set up reset auxiliary devices
Add a new reset_name field to the spacemit_ccu_data structure. If it is
non-null, the CCU implements a reset controller, and the name will be
used in the name for the auxiliary device that implements it.
Define a new type to hold an auxiliary device as well as the regmap
pointer that will be needed by CCU reset controllers. Set up code to
initialize and add an auxiliary device for any CCU that implements reset
functionality.
Make it optional for a CCU to implement a clock controller. This
doesn't apply to any of the existing CCUs but will for some new ones
that will be added soon.
Signed-off-by: Alex Elder <elder@riscstar.com>
Reviewed-by: Haylen Chu <heylenay@4d2.org>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Link: https://lore.kernel.org/r/20250702113709.291748-4-elder@riscstar.com
Signed-off-by: Yixun Lan <dlan@gentoo.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/soc/spacemit/k1-syscon.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/soc/spacemit/k1-syscon.h b/include/soc/spacemit/k1-syscon.h index 039a448c51a0..53eff7691f33 100644 --- a/include/soc/spacemit/k1-syscon.h +++ b/include/soc/spacemit/k1-syscon.h @@ -5,6 +5,18 @@ #ifndef __SOC_K1_SYSCON_H__ #define __SOC_K1_SYSCON_H__ +/* Auxiliary device used to represent a CCU reset controller */ +struct spacemit_ccu_adev { + struct auxiliary_device adev; + struct regmap *regmap; +}; + +static inline struct spacemit_ccu_adev * +to_spacemit_ccu_adev(struct auxiliary_device *adev) +{ + return container_of(adev, struct spacemit_ccu_adev, adev); +} + /* APBS register offset */ #define APBS_PLL1_SWCR1 0x100 #define APBS_PLL1_SWCR2 0x104 |