samsung-sm8650/android_kernel_samsung_sm8650-modules
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disp: msm: dp: add support for PLL programming

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Add support for PLL programming in the DisplayPort driver.

Change-Id: I4f08a621dcae5d1f54d67bb5c34409249012cc7b
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
This commit is contained in:
Tatenda Chipeperekwa
2020-01-15 16:49:50 -08:00
parent 9b75dd6713
commit 37412f5add
15 changed files with 1896 additions and 362 deletions
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22
msm/dp/dp_panel.c
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@@ -1528,6 +1528,18 @@ skip_dpcd_read:
link_info->num_lanes = dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK;
if (is_link_rate_valid(panel->dp_panel.link_bw_code)) {
DP_DEBUG("debug link bandwidth code: 0x%x\n",
panel->dp_panel.link_bw_code);
link_info->rate = drm_dp_bw_code_to_link_rate(
panel->dp_panel.link_bw_code);
}
if (is_lane_count_valid(panel->dp_panel.lane_count)) {
DP_DEBUG("debug lane count: %d\n", panel->dp_panel.lane_count);
link_info->num_lanes = panel->dp_panel.lane_count;
}
if (multi_func)
link_info->num_lanes = min_t(unsigned int,
link_info->num_lanes, 2);
@@ -2272,11 +2284,6 @@ static int dp_panel_deinit_panel_info(struct dp_panel *dp_panel, u32 flags)
struct drm_connector *connector;
struct sde_connector_state *c_state;
if (!dp_panel) {
DP_ERR("invalid input\n");
return -EINVAL;
}
if (flags & DP_PANEL_SRC_INITIATED_POWER_DOWN) {
DP_DEBUG("retain states in src initiated power down request\n");
return 0;
@@ -2318,6 +2325,9 @@ static int dp_panel_deinit_panel_info(struct dp_panel *dp_panel, u32 flags)
memset(&c_state->hdr_meta, 0, sizeof(c_state->hdr_meta));
memset(&c_state->dyn_hdr_meta, 0, sizeof(c_state->dyn_hdr_meta));
dp_panel->link_bw_code = 0;
dp_panel->lane_count = 0;
return rc;
}
@@ -3001,6 +3011,8 @@ struct dp_panel *dp_panel_get(struct dp_panel_in *in)
dp_panel = &panel->dp_panel;
dp_panel->max_bw_code = DP_LINK_BW_8_1;
dp_panel->spd_enabled = true;
dp_panel->link_bw_code = 0;
dp_panel->lane_count = 0;
memcpy(panel->spd_vendor_name, vendor_name, (sizeof(u8) * 8));
memcpy(panel->spd_product_description, product_desc, (sizeof(u8) * 16));
dp_panel->connector = in->connector;