On 5/24/2023 12:14 PM, Marijn Suijten wrote:
On 2023-05-24 10:45:16, Jessica Zhang wrote:
Add helper to get the integer value of drm_dsc_config.bits_per_pixel
Reviewed-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx>
Nit: if there comes a v15, perhaps this can be squashed with patch 1/9?
I always thought they were separate because one extends the header while
this extends the C file... but now both extend the C file with helpers.
Hi Marijn,
Sure, will squash this if there is a v15.
---
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);
You did not add linux/bug.h back, presumably because Dmitry added
another use of WARN_ON_ONCE to this file in a previous series and it
compiles fine as the definition trickles in via another header?
Yep, this compiles fine without any error or warning.
Thanks,
Jessica Zhang
- Marijn
+ 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
