Release 4.11 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: Tiffany Lin <tiffany.lin@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>
#include <soc/mediatek/smi.h>
#include "mtk_vcodec_dec_pm.h"
#include "mtk_vcodec_util.h"
#include "mtk_vpu.h"
int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)
{
struct device_node *node;
struct platform_device *pdev;
struct mtk_vcodec_pm *pm;
int ret = 0;
pdev = mtkdev->plat_dev;
pm = &mtkdev->pm;
pm->mtkdev = mtkdev;
node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0);
if (!node) {
mtk_v4l2_err("of_parse_phandle mediatek,larb fail!");
return -1;
}
pdev = of_find_device_by_node(node);
if (WARN_ON(!pdev)) {
of_node_put(node);
return -1;
}
pm->larbvdec = &pdev->dev;
pdev = mtkdev->plat_dev;
pm->dev = &pdev->dev;
pm->vcodecpll = devm_clk_get(&pdev->dev, "vcodecpll");
if (IS_ERR(pm->vcodecpll)) {
mtk_v4l2_err("devm_clk_get vcodecpll fail");
ret = PTR_ERR(pm->vcodecpll);
}
pm->univpll_d2 = devm_clk_get(&pdev->dev, "univpll_d2");
if (IS_ERR(pm->univpll_d2)) {
mtk_v4l2_err("devm_clk_get univpll_d2 fail");
ret = PTR_ERR(pm->univpll_d2);
}
pm->clk_cci400_sel = devm_clk_get(&pdev->dev, "clk_cci400_sel");
if (IS_ERR(pm->clk_cci400_sel)) {
mtk_v4l2_err("devm_clk_get clk_cci400_sel fail");
ret = PTR_ERR(pm->clk_cci400_sel);
}
pm->vdec_sel = devm_clk_get(&pdev->dev, "vdec_sel");
if (IS_ERR(pm->vdec_sel)) {
mtk_v4l2_err("devm_clk_get vdec_sel fail");
ret = PTR_ERR(pm->vdec_sel);
}
pm->vdecpll = devm_clk_get(&pdev->dev, "vdecpll");
if (IS_ERR(pm->vdecpll)) {
mtk_v4l2_err("devm_clk_get vdecpll fail");
ret = PTR_ERR(pm->vdecpll);
}
pm->vencpll = devm_clk_get(&pdev->dev, "vencpll");
if (IS_ERR(pm->vencpll)) {
mtk_v4l2_err("devm_clk_get vencpll fail");
ret = PTR_ERR(pm->vencpll);
}
pm->venc_lt_sel = devm_clk_get(&pdev->dev, "venc_lt_sel");
if (IS_ERR(pm->venc_lt_sel)) {
mtk_v4l2_err("devm_clk_get venc_lt_sel fail");
ret = PTR_ERR(pm->venc_lt_sel);
}
pm->vdec_bus_clk_src = devm_clk_get(&pdev->dev, "vdec_bus_clk_src");
if (IS_ERR(pm->vdec_bus_clk_src)) {
mtk_v4l2_err("devm_clk_get vdec_bus_clk_src");
ret = PTR_ERR(pm->vdec_bus_clk_src);
}
pm_runtime_enable(&pdev->dev);
return ret;
}
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void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev)
{
pm_runtime_disable(dev->pm.dev);
}
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void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
{
int ret;
ret = pm_runtime_get_sync(pm->dev);
if (ret)
mtk_v4l2_err("pm_runtime_get_sync fail %d", ret);
}
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void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm)
{
int ret;
ret = pm_runtime_put_sync(pm->dev);
if (ret)
mtk_v4l2_err("pm_runtime_put_sync fail %d", ret);
}
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void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)
{
int ret;
ret = clk_set_rate(pm->vcodecpll, 1482 * 1000000);
if (ret)
mtk_v4l2_err("clk_set_rate vcodecpll fail %d", ret);
ret = clk_set_rate(pm->vencpll, 800 * 1000000);
if (ret)
mtk_v4l2_err("clk_set_rate vencpll fail %d", ret);
ret = clk_prepare_enable(pm->vcodecpll);
if (ret)
mtk_v4l2_err("clk_prepare_enable vcodecpll fail %d", ret);
ret = clk_prepare_enable(pm->vencpll);
if (ret)
mtk_v4l2_err("clk_prepare_enable vencpll fail %d", ret);
ret = clk_prepare_enable(pm->vdec_bus_clk_src);
if (ret)
mtk_v4l2_err("clk_prepare_enable vdec_bus_clk_src fail %d",
ret);
ret = clk_prepare_enable(pm->venc_lt_sel);
if (ret)
mtk_v4l2_err("clk_prepare_enable venc_lt_sel fail %d", ret);
ret = clk_set_parent(pm->venc_lt_sel, pm->vdec_bus_clk_src);
if (ret)
mtk_v4l2_err("clk_set_parent venc_lt_sel vdec_bus_clk_src fail %d",
ret);
ret = clk_prepare_enable(pm->univpll_d2);
if (ret)
mtk_v4l2_err("clk_prepare_enable univpll_d2 fail %d", ret);
ret = clk_prepare_enable(pm->clk_cci400_sel);
if (ret)
mtk_v4l2_err("clk_prepare_enable clk_cci400_sel fail %d", ret);
ret = clk_set_parent(pm->clk_cci400_sel, pm->univpll_d2);
if (ret)
mtk_v4l2_err("clk_set_parent clk_cci400_sel univpll_d2 fail %d",
ret);
ret = clk_prepare_enable(pm->vdecpll);
if (ret)
mtk_v4l2_err("clk_prepare_enable vdecpll fail %d", ret);
ret = clk_prepare_enable(pm->vdec_sel);
if (ret)
mtk_v4l2_err("clk_prepare_enable vdec_sel fail %d", ret);
ret = clk_set_parent(pm->vdec_sel, pm->vdecpll);
if (ret)
mtk_v4l2_err("clk_set_parent vdec_sel vdecpll fail %d", ret);
ret = mtk_smi_larb_get(pm->larbvdec);
if (ret)
mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret);
}
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void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm)
{
mtk_smi_larb_put(pm->larbvdec);
clk_disable_unprepare(pm->vdec_sel);
clk_disable_unprepare(pm->vdecpll);
clk_disable_unprepare(pm->univpll_d2);
clk_disable_unprepare(pm->clk_cci400_sel);
clk_disable_unprepare(pm->venc_lt_sel);
clk_disable_unprepare(pm->vdec_bus_clk_src);
clk_disable_unprepare(pm->vencpll);
clk_disable_unprepare(pm->vcodecpll);
}
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