46 lines
1.5 KiB
Diff
46 lines
1.5 KiB
Diff
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From d2e8b87c1211226cc6e1f4a0ecf6da589dc7093d Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <megous@megous.com>
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Date: Sat, 1 May 2021 14:04:05 +0200
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Subject: [PATCH 424/478] devfreq: sun8i-mbus: Set default minimum frequency
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for the governor
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Set it by default to second lowest, so that people don't complain
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about the low mmc performance. But allow people who want higher
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power savings to set it still lower.
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Yes, this should be done in userspace, but some had already disabled
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the mbus devfreq driver completely, instead of tuning the governor,
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so let's have higher perf by default, instead of losing testers... ;)
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Signed-off-by: Ondrej Jirman <megous@megous.com>
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---
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drivers/devfreq/sun8i-mbus.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/drivers/devfreq/sun8i-mbus.c b/drivers/devfreq/sun8i-mbus.c
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index d3c1655f1550..a2d44d422586 100644
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--- a/drivers/devfreq/sun8i-mbus.c
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+++ b/drivers/devfreq/sun8i-mbus.c
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@@ -10,6 +10,7 @@
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/property.h>
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+#include <linux/pm_qos.h>
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#define MBUS_CR 0x0000
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#define MBUS_CR_GET_DRAM_TYPE(x) (((x) >> 16) & 0x7)
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@@ -437,6 +438,10 @@ static int sun8i_mbus_probe(struct platform_device *pdev)
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goto err_unlock_dram;
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}
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+ if (max_state > 0)
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+ dev_pm_qos_update_request(&priv->devfreq_dram->user_min_freq_req,
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+ priv->freq_table[1] / 1000);
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+
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priv->devfreq_dram->suspend_freq = priv->freq_table[0];
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debugfs_create_devm_seqfile(dev, "sun8i-mbus", NULL,
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--
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2.35.3
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