[PATCH v6 1/5] drm/msm/disp/dpu1: set mdp clk to the maximum frequency in opp table during probe

[Vinod Polimera]

use max clock during probe/bind sequence from the opp table.
The clock will be scaled down when framework sends an update.

Fixes: 25fdd5933("drm/msm: Add SDM845 DPU support")
Signed-off-by: Vinod Polimera <quic_vpoli...@quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index e29796c..9c346ce 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1202,7 +1202,9 @@ static int dpu_bind(struct device *dev, struct device 
*master, void *data)
        struct platform_device *pdev = to_platform_device(dev);
        struct drm_device *ddev = priv->dev;
        struct dpu_kms *dpu_kms;
+       struct dev_pm_opp *opp;
        int ret = 0;
+       unsigned long max_freq = ULONG_MAX;
 
        dpu_kms = devm_kzalloc(&pdev->dev, sizeof(*dpu_kms), GFP_KERNEL);
        if (!dpu_kms)
@@ -1225,6 +1227,12 @@ static int dpu_bind(struct device *dev, struct device 
*master, void *data)
        }
        dpu_kms->num_clocks = ret;
 
+       opp = dev_pm_opp_find_freq_floor(dev, &max_freq);
+       if (!IS_ERR(opp))
+               dev_pm_opp_put(opp);
+
+       dev_pm_opp_set_rate(dev, max_freq);
+
        platform_set_drvdata(pdev, dpu_kms);
 
        ret = msm_kms_init(&dpu_kms->base, &kms_funcs);
-- 
2.7.4