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