[PATCH v5 5/5] drm/msm/disp/dpu1: set mdp clk to the maximum frequency in opp table during probe

From: Vinod Polimera <quic_vpolimer@quicinc.com>
To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Cc: Vinod Polimera <quic_vpolimer@quicinc.com>,
	linux-kernel@vger.kernel.org, robdclark@gmail.com,
	dianders@chromium.org, swboyd@chromium.org,
	quic_kalyant@quicinc.com
Subject: [PATCH v5 5/5] drm/msm/disp/dpu1: set mdp clk to the maximum frequency in opp table during probe
Date: Tue,  8 Mar 2022 22:25:00 +0530	[thread overview]
Message-ID: <1646758500-3776-6-git-send-email-quic_vpolimer@quicinc.com> (raw)
In-Reply-To: <1646758500-3776-1-git-send-email-quic_vpolimer@quicinc.com>

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

Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index d550f90..d9922b9 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1221,6 +1221,7 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)
 	struct dpu_kms *dpu_kms;
 	struct dss_module_power *mp;
 	int ret = 0;
+	unsigned long max_freq = ULONG_MAX;
 
 	dpu_kms = devm_kzalloc(&pdev->dev, sizeof(*dpu_kms), GFP_KERNEL);
 	if (!dpu_kms)
@@ -1243,6 +1244,8 @@ static int dpu_bind(struct device *dev, struct device *master, void *data)
 		return ret;
 	}
 
+	dev_pm_opp_find_freq_floor(dev, &max_freq);
+	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

