2024-12-19 21:34:44 +00:00
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From fbb8be7ab811050e143b6449ce01dc30ac6a3a4c Mon Sep 17 00:00:00 2001
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2024-12-15 18:29:23 +00:00
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From: ningyu <ningyu@eswincomputing.com>
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Date: Mon, 17 Jun 2024 17:42:34 +0800
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Subject: [PATCH 133/219] refactor:add vo qos config
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Changelogs:
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Add VO Qos configuration, set to 9, in order to resolve hdmi display tear
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Signed-off-by: ningyu <ningyu@eswincomputing.com>
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---
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drivers/gpu/drm/eswin/es_dc.c | 19 ++++++++++++++++++-
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1 file changed, 18 insertions(+), 1 deletion(-)
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diff --git a/drivers/gpu/drm/eswin/es_dc.c b/drivers/gpu/drm/eswin/es_dc.c
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index 2eddebbd2ddb..ac43c604a2dc 100644
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--- a/drivers/gpu/drm/eswin/es_dc.c
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+++ b/drivers/gpu/drm/eswin/es_dc.c
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@@ -977,6 +977,23 @@ const struct component_ops dc_component_ops = {
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.unbind = dc_unbind,
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};
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+static void vo_qos_cfg(void)
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+{
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+ void __iomem *qos;
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+
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+ #define VO_QOS_CSR 0x50281050UL
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+ qos = ioremap(VO_QOS_CSR, 8);
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+ if (!qos) {
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+ printk("qos ioremap fail---------------\n");
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+ return;
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+ }
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+ writel(0x9, qos);
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+ writel(0x9, (char *)qos + 4);
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+
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+ iounmap(qos);
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+ return;
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+}
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+
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static const struct of_device_id dc_driver_dt_match[] = {
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{
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.compatible = "eswin,dc",
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@@ -1093,7 +1110,7 @@ static int dc_probe(struct platform_device *pdev)
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}
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dev_set_drvdata(dev, dc);
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-
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+ vo_qos_cfg();
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return component_add(dev, &dc_component_ops);
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}
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--
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2.47.0
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