diff options
Diffstat (limited to 'drivers/gpu/drm/arm/display/include/malidp_utils.h')
| -rw-r--r-- | drivers/gpu/drm/arm/display/include/malidp_utils.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/display/include/malidp_utils.h b/drivers/gpu/drm/arm/display/include/malidp_utils.h index 63cc47cefcf8..8cfd91196e15 100644 --- a/drivers/gpu/drm/arm/display/include/malidp_utils.h +++ b/drivers/gpu/drm/arm/display/include/malidp_utils.h @@ -7,10 +7,41 @@ #ifndef _MALIDP_UTILS_ #define _MALIDP_UTILS_ +#include <linux/delay.h> + #define has_bit(nr, mask) (BIT(nr) & (mask)) #define has_bits(bits, mask) (((bits) & (mask)) == (bits)) #define dp_for_each_set_bit(bit, mask) \ for_each_set_bit((bit), ((unsigned long *)&(mask)), sizeof(mask) * 8) +#define dp_wait_cond(__cond, __tries, __min_range, __max_range) \ +({ \ + int num_tries = __tries; \ + while (!__cond && (num_tries > 0)) { \ + usleep_range(__min_range, __max_range); \ + if (__cond) \ + break; \ + num_tries--; \ + } \ + num_tries; \ +}) + +/* the restriction of range is [start, end] */ +struct malidp_range { + u32 start; + u32 end; +}; + +static inline void set_range(struct malidp_range *rg, u32 start, u32 end) +{ + rg->start = start; + rg->end = end; +} + +static inline bool in_range(struct malidp_range *rg, u32 v) +{ + return (v >= rg->start) && (v <= rg->end); +} + #endif /* _MALIDP_UTILS_ */ |