mirror of
https://github.com/LibreELEC/LibreELEC.tv
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104 lines
3.0 KiB
Diff
104 lines
3.0 KiB
Diff
From 55cfa664c6e07b2902ac3666fdf9d00c6ebeac70 Mon Sep 17 00:00:00 2001
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From: Randy Li <ayaka@soulik.info>
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Date: Sun, 6 Jan 2019 01:48:37 +0800
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Subject: [PATCH 30/59] WIP/1001: soc: rockchip: power-domain: export idle
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request
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We need to put the power status of HEVC IP into IDLE unless
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we can't reset that IP or the SoC would crash down.
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rockchip_pmu_idle_request(dev, true)---> enter idle
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rockchip_pmu_idle_request(dev, false)---> exit idle
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Signed-off-by: Caesar Wang <wxt@rock-chips.com>
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Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
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Signed-off-by: Randy Li <ayaka@soulik.info>
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---
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drivers/pmdomain/rockchip/pm-domains.c | 23 +++++++++++++++++++++++
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include/linux/rockchip_pmu.h | 15 +++++++++++++++
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include/soc/rockchip/pm_domains.h | 6 ++++++
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3 files changed, 44 insertions(+)
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create mode 100644 include/linux/rockchip_pmu.h
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diff --git a/drivers/pmdomain/rockchip/pm-domains.c b/drivers/pmdomain/rockchip/pm-domains.c
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index 4cce407bb1eb..ead8b1e380d5 100644
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--- a/drivers/pmdomain/rockchip/pm-domains.c
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+++ b/drivers/pmdomain/rockchip/pm-domains.c
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@@ -417,6 +417,29 @@ static int rockchip_pmu_set_idle_request(struct rockchip_pm_domain *pd,
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return 0;
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}
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+int rockchip_pmu_idle_request(struct device *dev, bool idle)
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+{
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+ struct generic_pm_domain *genpd;
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+ struct rockchip_pm_domain *pd;
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+ int ret;
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+
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+ if (IS_ERR_OR_NULL(dev))
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+ return -EINVAL;
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+
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+ if (IS_ERR_OR_NULL(dev->pm_domain))
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+ return -EINVAL;
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+
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+ genpd = pd_to_genpd(dev->pm_domain);
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+ pd = to_rockchip_pd(genpd);
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+
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+ mutex_lock(&pd->pmu->mutex);
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+ ret = rockchip_pmu_set_idle_request(pd, idle);
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+ mutex_unlock(&pd->pmu->mutex);
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+
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+ return ret;
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+}
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+EXPORT_SYMBOL(rockchip_pmu_idle_request);
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+
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static int rockchip_pmu_save_qos(struct rockchip_pm_domain *pd)
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{
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int i;
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diff --git a/include/linux/rockchip_pmu.h b/include/linux/rockchip_pmu.h
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new file mode 100644
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index 000000000000..720b3314e71a
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--- /dev/null
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+++ b/include/linux/rockchip_pmu.h
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@@ -0,0 +1,15 @@
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+/*
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+ * pm_domain.h - Definitions and headers related to device power domains.
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+ *
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+ * Copyright (C) 2017 Randy Li <ayaka@soulik.info>.
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+ *
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+ * This file is released under the GPLv2.
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+ */
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+
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+#ifndef _LINUX_ROCKCHIP_PM_H
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+#define _LINUX_ROCKCHIP_PM_H
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+#include <linux/device.h>
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+
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+int rockchip_pmu_idle_request(struct device *dev, bool idle);
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+
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+#endif /* _LINUX_ROCKCHIP_PM_H */
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diff --git a/include/soc/rockchip/pm_domains.h b/include/soc/rockchip/pm_domains.h
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index 7dbd941fc937..c5a59dd71754 100644
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--- a/include/soc/rockchip/pm_domains.h
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+++ b/include/soc/rockchip/pm_domains.h
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@@ -10,6 +10,7 @@
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int rockchip_pmu_block(void);
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void rockchip_pmu_unblock(void);
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+int rockchip_pmu_idle_request(struct device *dev, bool idle);
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#else /* CONFIG_ROCKCHIP_PM_DOMAINS */
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@@ -20,6 +21,11 @@ static inline int rockchip_pmu_block(void)
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static inline void rockchip_pmu_unblock(void) { }
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+static inline int rockchip_pmu_idle_request(struct device *dev, bool idle)
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+{
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+ return -ENOTSUPP;
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+}
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+
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#endif /* CONFIG_ROCKCHIP_PM_DOMAINS */
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#endif /* __SOC_ROCKCHIP_PM_DOMAINS_H__ */
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--
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2.34.1
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