From: Yangtao Li <tiny.win...@gmail.com>

Use resource-managed OPP API to simplify code.

Signed-off-by: Yangtao Li <tiny.win...@gmail.com>
Signed-off-by: Dmitry Osipenko <dig...@gmail.com>
---
 drivers/media/platform/qcom/venus/core.h      |  1 -
 .../media/platform/qcom/venus/pm_helpers.c    | 35 +++++--------------
 2 files changed, 8 insertions(+), 28 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.h 
b/drivers/media/platform/qcom/venus/core.h
index a252ed32cc14..d35f60d2cb56 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -125,7 +125,6 @@ struct venus_core {
        struct clk *vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX];
        struct icc_path *video_path;
        struct icc_path *cpucfg_path;
-       struct opp_table *opp_table;
        bool has_opp_table;
        struct device *pmdomains[VIDC_PMDOMAINS_NUM_MAX];
        struct device_link *opp_dl_venus;
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c 
b/drivers/media/platform/qcom/venus/pm_helpers.c
index 43c4e3d9e281..e61317220b9a 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -756,7 +756,6 @@ static int venc_power_v4(struct device *dev, int on)
 static int vcodec_domains_get(struct device *dev)
 {
        int ret;
-       struct opp_table *opp_table;
        struct device **opp_virt_dev;
        struct venus_core *core = dev_get_drvdata(dev);
        const struct venus_resources *res = core->res;
@@ -779,11 +778,9 @@ static int vcodec_domains_get(struct device *dev)
                return 0;
 
        /* Attach the power domain for setting performance state */
-       opp_table = dev_pm_opp_attach_genpd(dev, res->opp_pmdomain, 
&opp_virt_dev);
-       if (IS_ERR(opp_table)) {
-               ret = PTR_ERR(opp_table);
+       ret = devm_pm_opp_attach_genpd(dev, res->opp_pmdomain, &opp_virt_dev);
+       if (ret)
                goto opp_attach_err;
-       }
 
        core->opp_pmdomain = *opp_virt_dev;
        core->opp_dl_venus = device_link_add(dev, core->opp_pmdomain,
@@ -792,13 +789,11 @@ static int vcodec_domains_get(struct device *dev)
                                             DL_FLAG_STATELESS);
        if (!core->opp_dl_venus) {
                ret = -ENODEV;
-               goto opp_dl_add_err;
+               goto opp_attach_err;
        }
 
        return 0;
 
-opp_dl_add_err:
-       dev_pm_opp_detach_genpd(core->opp_table);
 opp_attach_err:
        for (i = 0; i < res->vcodec_pmdomains_num; i++) {
                if (IS_ERR_OR_NULL(core->pmdomains[i]))
@@ -830,8 +825,6 @@ static void vcodec_domains_put(struct device *dev)
 
        if (core->opp_dl_venus)
                device_link_del(core->opp_dl_venus);
-
-       dev_pm_opp_detach_genpd(core->opp_table);
 }
 
 static int core_get_v4(struct device *dev)
@@ -860,45 +853,33 @@ static int core_get_v4(struct device *dev)
        if (legacy_binding)
                return 0;
 
-       core->opp_table = dev_pm_opp_set_clkname(dev, "core");
-       if (IS_ERR(core->opp_table))
-               return PTR_ERR(core->opp_table);
+       ret = devm_pm_opp_set_clkname(dev, "core");
+       if (ret)
+               return ret;
 
        if (core->res->opp_pmdomain) {
-               ret = dev_pm_opp_of_add_table(dev);
+               ret = devm_pm_opp_of_add_table(dev);
                if (!ret) {
                        core->has_opp_table = true;
                } else if (ret != -ENODEV) {
                        dev_err(dev, "invalid OPP table in device tree\n");
-                       dev_pm_opp_put_clkname(core->opp_table);
                        return ret;
                }
        }
 
        ret = vcodec_domains_get(dev);
-       if (ret) {
-               if (core->has_opp_table)
-                       dev_pm_opp_of_remove_table(dev);
-               dev_pm_opp_put_clkname(core->opp_table);
+       if (ret)
                return ret;
-       }
 
        return 0;
 }
 
 static void core_put_v4(struct device *dev)
 {
-       struct venus_core *core = dev_get_drvdata(dev);
-
        if (legacy_binding)
                return;
 
        vcodec_domains_put(dev);
-
-       if (core->has_opp_table)
-               dev_pm_opp_of_remove_table(dev);
-       dev_pm_opp_put_clkname(core->opp_table);
-
 }
 
 static int core_power_v4(struct device *dev, int on)
-- 
2.30.2

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