drm/msm/dp: Simplify with drm_dp_{max_link_rate, max_lane_count}()

These are open-coded versions of common functions. Replace them with the
common code to improve readability.

Cc: Vinod Polimera <quic_vpolimer@quicinc.com>
Cc: Kuogee Hsieh <quic_khsieh@quicinc.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/554990/
Link: https://lore.kernel.org/r/20230829184735.2841739-6-swboyd@chromium.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c
index 0893522ae1583110e524fb7e7c0ec09e95f9ab08..97ba41593820eb6f1a79aa45f1c77c1fe91ef8c1 100644 (file)
--- a/drivers/gpu/drm/msm/dp/dp_panel.c
+++ b/drivers/gpu/drm/msm/dp/dp_panel.c
@@ -58,8 +58,8 @@ static int dp_panel_read_dpcd(struct dp_panel *dp_panel)
        major = (link_info->revision >> 4) & 0x0f;
        minor = link_info->revision & 0x0f;
 
-       link_info->rate = drm_dp_bw_code_to_link_rate(dpcd[DP_MAX_LINK_RATE]);
-       link_info->num_lanes = dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK;
+       link_info->rate = drm_dp_max_link_rate(dpcd);
+       link_info->num_lanes = drm_dp_max_lane_count(dpcd);
 
        /* Limit data lanes from data-lanes of endpoint property of dtsi */
        if (link_info->num_lanes > dp_panel->max_dp_lanes)