diff options
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/bridge/sec_mipi_dsim.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/drm/bridge/sec_mipi_dsim.h b/include/drm/bridge/sec_mipi_dsim.h index 911513ac9c51..44842184cff2 100644 --- a/include/drm/bridge/sec_mipi_dsim.h +++ b/include/drm/bridge/sec_mipi_dsim.h @@ -16,15 +16,70 @@ #define __SEC_MIPI_DSIM_H__ #include <drm/drmP.h> +#include <linux/bsearch.h> + +struct sec_mipi_dsim_dphy_timing; struct sec_mipi_dsim_plat_data { uint32_t version; uint32_t max_data_lanes; uint64_t max_data_rate; + const struct sec_mipi_dsim_dphy_timing *dphy_timing; + uint32_t num_dphy_timing; + int (*dphy_timing_cmp)(const void *key, const void *elt); enum drm_mode_status (*mode_valid)(struct drm_connector *connector, struct drm_display_mode *mode); }; +/* DPHY timings structure */ +struct sec_mipi_dsim_dphy_timing { + uint32_t bit_clk; /* MHz */ + + uint32_t clk_prepare; + uint32_t clk_zero; + uint32_t clk_post; + uint32_t clk_trail; + + uint32_t hs_prepare; + uint32_t hs_zero; + uint32_t hs_trail; + + uint32_t lpx; + uint32_t hs_exit; +}; + +#define DSIM_DPHY_TIMING(bclk, cpre, czero, cpost, ctrail, \ + hpre, hzero, htrail, lp, hexit) \ + .bit_clk = bclk, \ + .clk_prepare = cpre, \ + .clk_zero = czero, \ + .clk_post = cpost, \ + .hs_prepare = hpre, \ + .hs_zero = hzero, \ + .hs_trail = htrail, \ + .lpx = lp, \ + .hs_exit = hexit + +static inline int dphy_timing_default_cmp(const void *key, const void *elt) +{ + const struct sec_mipi_dsim_dphy_timing *_key = key; + const struct sec_mipi_dsim_dphy_timing *_elt = elt; + + /* find an element whose 'bit_clk' is equal to the + * the key's 'bit_clk' value or, the difference + * between them is less than 5. + */ + if (abs((int)(_elt->bit_clk - _key->bit_clk)) <= 5) + return 0; + + if (_key->bit_clk < _elt->bit_clk) + /* search bottom half */ + return 1; + else + /* search top half */ + return -1; +} + int sec_mipi_dsim_check_pll_out(void *driver_private, const struct drm_display_mode *mode); int sec_mipi_dsim_bind(struct device *dev, struct device *master, void *data, |