Move the DSC parsing logic into separate function.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
---
drivers/gpu/drm/drm_edid.c | 128 ++++++++++++++++++++-----------------
1 file changed, 69 insertions(+), 59 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index cdf10279e1bd..ffff1d08b3a4 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5703,6 +5703,73 @@ static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
hdmi->y420_dc_modes = dc_mask;
}
+static void drm_parse_dsc_info(struct drm_hdmi_dsc_cap *hdmi_dsc,
+ const u8 *hf_scds)
+{
+ u8 dsc_max_slices;
+ u8 dsc_max_frl_rate;
+
+ hdmi_dsc->v_1p2 = hf_scds[11] & DRM_EDID_DSC_1P2;
+
+ if (!hdmi_dsc->v_1p2)
+ return;
+
+ hdmi_dsc->native_420 = hf_scds[11] & DRM_EDID_DSC_NATIVE_420;
+ hdmi_dsc->all_bpp = hf_scds[11] & DRM_EDID_DSC_ALL_BPP;
+
+ if (hf_scds[11] & DRM_EDID_DSC_16BPC)
+ hdmi_dsc->bpc_supported = 16;
+ else if (hf_scds[11] & DRM_EDID_DSC_12BPC)
+ hdmi_dsc->bpc_supported = 12;
+ else if (hf_scds[11] & DRM_EDID_DSC_10BPC)
+ hdmi_dsc->bpc_supported = 10;
+ else
+ /* Supports min 8 BPC if DSC1.2 is supported*/
+ hdmi_dsc->bpc_supported = 8;
+
+ dsc_max_frl_rate = (hf_scds[12] & DRM_EDID_DSC_MAX_FRL_RATE_MASK) >> 4;
+ drm_get_max_frl_rate(dsc_max_frl_rate, &hdmi_dsc->max_lanes,
+ &hdmi_dsc->max_frl_rate_per_lane);
+ hdmi_dsc->total_chunk_kbytes = hf_scds[13] & DRM_EDID_DSC_TOTAL_CHUNK_KBYTES;
+
+ dsc_max_slices = hf_scds[12] & DRM_EDID_DSC_MAX_SLICES;
+
+ switch (dsc_max_slices) {
+ case 1:
+ hdmi_dsc->max_slices = 1;
+ hdmi_dsc->clk_per_slice = 340;
+ break;
+ case 2:
+ hdmi_dsc->max_slices = 2;
+ hdmi_dsc->clk_per_slice = 340;
+ break;
+ case 3:
+ hdmi_dsc->max_slices = 4;
+ hdmi_dsc->clk_per_slice = 340;
+ break;
+ case 4:
+ hdmi_dsc->max_slices = 8;
+ hdmi_dsc->clk_per_slice = 340;
+ break;
+ case 5:
+ hdmi_dsc->max_slices = 8;
+ hdmi_dsc->clk_per_slice = 400;
+ break;
+ case 6:
+ hdmi_dsc->max_slices = 12;
+ hdmi_dsc->clk_per_slice = 400;
+ break;
+ case 7:
+ hdmi_dsc->max_slices = 16;
+ hdmi_dsc->clk_per_slice = 400;
+ break;
+ case 0:
+ default:
+ hdmi_dsc->max_slices = 0;
+ hdmi_dsc->clk_per_slice = 0;
+ }
+}
+
/* Sink Capability Data Structure */
static void drm_parse_hdmi_forum_scds(struct drm_connector *connector,
const u8 *hf_scds)
@@ -5749,71 +5816,14 @@ static void drm_parse_hdmi_forum_scds(struct drm_connector *connector,
if (hf_scds[7]) {
u8 max_frl_rate;
- u8 dsc_max_frl_rate;
- u8 dsc_max_slices;
struct drm_hdmi_dsc_cap *hdmi_dsc = &hdmi->dsc_cap;
DRM_DEBUG_KMS("hdmi_21 sink detected. parsing edid\n");
max_frl_rate = (hf_scds[7] & DRM_EDID_MAX_FRL_RATE_MASK) >> 4;
drm_get_max_frl_rate(max_frl_rate, &hdmi->max_lanes,
&hdmi->max_frl_rate_per_lane);
- hdmi_dsc->v_1p2 = hf_scds[11] & DRM_EDID_DSC_1P2;
-
- if (hdmi_dsc->v_1p2) {
- hdmi_dsc->native_420 = hf_scds[11] & DRM_EDID_DSC_NATIVE_420;
- hdmi_dsc->all_bpp = hf_scds[11] & DRM_EDID_DSC_ALL_BPP;
-
- if (hf_scds[11] & DRM_EDID_DSC_16BPC)
- hdmi_dsc->bpc_supported = 16;
- else if (hf_scds[11] & DRM_EDID_DSC_12BPC)
- hdmi_dsc->bpc_supported = 12;
- else if (hf_scds[11] & DRM_EDID_DSC_10BPC)
- hdmi_dsc->bpc_supported = 10;
- else
- /* Supports min 8 BPC if DSC1.2 is supported*/
- hdmi_dsc->bpc_supported = 8;
-
- dsc_max_frl_rate = (hf_scds[12] & DRM_EDID_DSC_MAX_FRL_RATE_MASK) >> 4;
- drm_get_max_frl_rate(dsc_max_frl_rate, &hdmi_dsc->max_lanes,
- &hdmi_dsc->max_frl_rate_per_lane);
- hdmi_dsc->total_chunk_kbytes = hf_scds[13] & DRM_EDID_DSC_TOTAL_CHUNK_KBYTES;
-
- dsc_max_slices = hf_scds[12] & DRM_EDID_DSC_MAX_SLICES;
- switch (dsc_max_slices) {
- case 1:
- hdmi_dsc->max_slices = 1;
- hdmi_dsc->clk_per_slice = 340;
- break;
- case 2:
- hdmi_dsc->max_slices = 2;
- hdmi_dsc->clk_per_slice = 340;
- break;
- case 3:
- hdmi_dsc->max_slices = 4;
- hdmi_dsc->clk_per_slice = 340;
- break;
- case 4:
- hdmi_dsc->max_slices = 8;
- hdmi_dsc->clk_per_slice = 340;
- break;
- case 5:
- hdmi_dsc->max_slices = 8;
- hdmi_dsc->clk_per_slice = 400;
- break;
- case 6:
- hdmi_dsc->max_slices = 12;
- hdmi_dsc->clk_per_slice = 400;
- break;
- case 7:
- hdmi_dsc->max_slices = 16;
- hdmi_dsc->clk_per_slice = 400;
- break;
- case 0:
- default:
- hdmi_dsc->max_slices = 0;
- hdmi_dsc->clk_per_slice = 0;
- }
- }
+
+ drm_parse_dsc_info(hdmi_dsc, hf_scds);
}
drm_parse_ycbcr420_deep_color_info(connector, hf_scds);
--
2.25.1
