Add helper to get the integer value of drm_dsc_config.bits_per_pixel
Reviewed-by: Marijn Suijten <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Jessica Zhang <[email protected]>
---
drivers/gpu/drm/display/drm_dsc_helper.c | 13 +++++++++++++
include/drm/display/drm_dsc_helper.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/display/drm_dsc_helper.c
b/drivers/gpu/drm/display/drm_dsc_helper.c
index b31fe9849784..4424380c6cb6 100644
--- a/drivers/gpu/drm/display/drm_dsc_helper.c
+++ b/drivers/gpu/drm/display/drm_dsc_helper.c
@@ -1436,6 +1436,19 @@ int drm_dsc_compute_rc_parameters(struct drm_dsc_config
*vdsc_cfg)
}
EXPORT_SYMBOL(drm_dsc_compute_rc_parameters);
+/**
+ * drm_dsc_get_bpp_int() - Get integer bits per pixel value for the given DRM
DSC config
+ * @vdsc_cfg: Pointer to DRM DSC config struct
+ *
+ * Return: Integer BPP value
+ */
+u32 drm_dsc_get_bpp_int(const struct drm_dsc_config *vdsc_cfg)
+{
+ WARN_ON_ONCE(vdsc_cfg->bits_per_pixel & 0xf);
+ return vdsc_cfg->bits_per_pixel >> 4;
+}
+EXPORT_SYMBOL(drm_dsc_get_bpp_int);
+
/**
* drm_dsc_initial_scale_value() - Calculate the initial scale value for the
given DSC config
* @dsc: Pointer to DRM DSC config struct
diff --git a/include/drm/display/drm_dsc_helper.h
b/include/drm/display/drm_dsc_helper.h
index f4e18e5d077a..913aa2071232 100644
--- a/include/drm/display/drm_dsc_helper.h
+++ b/include/drm/display/drm_dsc_helper.h
@@ -27,6 +27,7 @@ int drm_dsc_setup_rc_params(struct drm_dsc_config *vdsc_cfg,
enum drm_dsc_params
int drm_dsc_compute_rc_parameters(struct drm_dsc_config *vdsc_cfg);
u8 drm_dsc_initial_scale_value(const struct drm_dsc_config *dsc);
u32 drm_dsc_flatness_det_thresh(const struct drm_dsc_config *dsc);
+u32 drm_dsc_get_bpp_int(const struct drm_dsc_config *vdsc_cfg);
#endif /* _DRM_DSC_HELPER_H_ */
--
2.40.1
