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/gpu/drm/msm/adreno/a5xx_gpu.c   |  2 +-
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c   |  2 +-
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c   | 11 +++------
 drivers/gpu/drm/msm/adreno/a6xx_gpu.h   |  2 --
 drivers/gpu/drm/msm/adreno/adreno_gpu.c |  2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 23 +++++++------------
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h |  2 --
 drivers/gpu/drm/msm/dp/dp_ctrl.c        | 30 +++++--------------------
 drivers/gpu/drm/msm/dp/dp_ctrl.h        |  1 -
 drivers/gpu/drm/msm/dp/dp_display.c     |  5 +----
 drivers/gpu/drm/msm/dsi/dsi_host.c      | 13 ++++-------
 11 files changed, 25 insertions(+), 68 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index 7e553d3efeb2..caf747ba8d5b 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -1705,7 +1705,7 @@ static void check_speed_bin(struct device *dev)
                nvmem_cell_put(cell);
        }
 
-       dev_pm_opp_set_supported_hw(dev, &val, 1);
+       devm_pm_opp_set_supported_hw(dev, &val, 1);
 }
 
 struct msm_gpu *a5xx_gpu_init(struct drm_device *dev)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c 
b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 91cf46f84025..232940b41720 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -1340,7 +1340,7 @@ static int a6xx_gmu_pwrlevels_probe(struct a6xx_gmu *gmu)
         * The GMU handles its own frequency switching so build a list of
         * available frequencies to send during initialization
         */
-       ret = dev_pm_opp_of_add_table(gmu->dev);
+       ret = devm_pm_opp_of_add_table(gmu->dev);
        if (ret) {
                DRM_DEV_ERROR(gmu->dev, "Unable to set the OPP table for the 
GMU\n");
                return ret;
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 690409ca8a18..c87b4665bb37 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1265,9 +1265,6 @@ static void a6xx_destroy(struct msm_gpu *gpu)
 
        adreno_gpu_cleanup(adreno_gpu);
 
-       if (a6xx_gpu->opp_table)
-               dev_pm_opp_put_supported_hw(a6xx_gpu->opp_table);
-
        kfree(a6xx_gpu);
 }
 
@@ -1400,7 +1397,6 @@ static u32 fuse_to_supp_hw(struct device *dev, u32 revn, 
u32 fuse)
 static int a6xx_set_supported_hw(struct device *dev, struct a6xx_gpu *a6xx_gpu,
                u32 revn)
 {
-       struct opp_table *opp_table;
        u32 supp_hw = UINT_MAX;
        u16 speedbin;
        int ret;
@@ -1417,11 +1413,10 @@ static int a6xx_set_supported_hw(struct device *dev, 
struct a6xx_gpu *a6xx_gpu,
        supp_hw = fuse_to_supp_hw(dev, revn, speedbin);
 
 done:
-       opp_table = dev_pm_opp_set_supported_hw(dev, &supp_hw, 1);
-       if (IS_ERR(opp_table))
-               return PTR_ERR(opp_table);
+       ret = devm_pm_opp_set_supported_hw(dev, &supp_hw, 1);
+       if (ret)
+               return ret;
 
-       a6xx_gpu->opp_table = opp_table;
        return 0;
 }
 
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h 
b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
index ce0610c5256f..e793d329e77b 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
@@ -33,8 +33,6 @@ struct a6xx_gpu {
        void *llc_slice;
        void *htw_llc_slice;
        bool have_mmu500;
-
-       struct opp_table *opp_table;
 };
 
 #define to_a6xx_gpu(x) container_of(x, struct a6xx_gpu, base)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c 
b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 0f184c3dd9d9..dfd3cac50f7f 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -841,7 +841,7 @@ static void adreno_get_pwrlevels(struct device *dev,
        if (!of_find_property(dev->of_node, "operating-points-v2", NULL))
                ret = adreno_get_legacy_pwrlevels(dev);
        else {
-               ret = dev_pm_opp_of_add_table(dev);
+               ret = devm_pm_opp_of_add_table(dev);
                if (ret)
                        DRM_DEV_ERROR(dev, "Unable to set the OPP table\n");
        }
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 5a8e3e1fc48c..0c057e73ebf5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1088,21 +1088,21 @@ static int dpu_bind(struct device *dev, struct device 
*master, void *data)
        if (!dpu_kms)
                return -ENOMEM;
 
-       dpu_kms->opp_table = dev_pm_opp_set_clkname(dev, "core");
-       if (IS_ERR(dpu_kms->opp_table))
-               return PTR_ERR(dpu_kms->opp_table);
+       ret = devm_pm_opp_set_clkname(dev, "core");
+       if (ret)
+               return ret;
        /* OPP table is optional */
-       ret = dev_pm_opp_of_add_table(dev);
+       ret = devm_pm_opp_of_add_table(dev);
        if (ret && ret != -ENODEV) {
                dev_err(dev, "invalid OPP table in device tree\n");
-               goto put_clkname;
+               return ret;
        }
 
        mp = &dpu_kms->mp;
        ret = msm_dss_parse_clock(pdev, mp);
        if (ret) {
                DPU_ERROR("failed to parse clocks, ret=%d\n", ret);
-               goto err;
+               return ret;
        }
 
        platform_set_drvdata(pdev, dpu_kms);
@@ -1110,7 +1110,7 @@ static int dpu_bind(struct device *dev, struct device 
*master, void *data)
        ret = msm_kms_init(&dpu_kms->base, &kms_funcs);
        if (ret) {
                DPU_ERROR("failed to init kms, ret=%d\n", ret);
-               goto err;
+               return ret;
        }
        dpu_kms->dev = ddev;
        dpu_kms->pdev = pdev;
@@ -1119,11 +1119,7 @@ static int dpu_bind(struct device *dev, struct device 
*master, void *data)
        dpu_kms->rpm_enabled = true;
 
        priv->kms = &dpu_kms->base;
-       return ret;
-err:
-       dev_pm_opp_of_remove_table(dev);
-put_clkname:
-       dev_pm_opp_put_clkname(dpu_kms->opp_table);
+
        return ret;
 }
 
@@ -1139,9 +1135,6 @@ static void dpu_unbind(struct device *dev, struct device 
*master, void *data)
 
        if (dpu_kms->rpm_enabled)
                pm_runtime_disable(&pdev->dev);
-
-       dev_pm_opp_of_remove_table(dev);
-       dev_pm_opp_put_clkname(dpu_kms->opp_table);
 }
 
 static const struct component_ops dpu_ops = {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index d6717d6672f7..1483995a94d9 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -130,8 +130,6 @@ struct dpu_kms {
        struct platform_device *pdev;
        bool rpm_enabled;
 
-       struct opp_table *opp_table;
-
        struct dss_module_power mp;
 
        /* reference count bandwidth requests, so we know when we can
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index 1390f3547fde..d20386a5c190 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -77,8 +77,6 @@ struct dp_ctrl_private {
        struct dp_parser *parser;
        struct dp_catalog *catalog;
 
-       struct opp_table *opp_table;
-
        struct completion idle_comp;
        struct completion video_comp;
 };
@@ -1886,20 +1884,17 @@ struct dp_ctrl *dp_ctrl_get(struct device *dev, struct 
dp_link *link,
                return ERR_PTR(-ENOMEM);
        }
 
-       ctrl->opp_table = dev_pm_opp_set_clkname(dev, "ctrl_link");
-       if (IS_ERR(ctrl->opp_table)) {
+       ret = devm_pm_opp_set_clkname(dev, "ctrl_link");
+       if (ret) {
                dev_err(dev, "invalid DP OPP table in device tree\n");
-               /* caller do PTR_ERR(ctrl->opp_table) */
-               return (struct dp_ctrl *)ctrl->opp_table;
+               /* caller do PTR_ERR(opp_table) */
+               return (struct dp_ctrl *)ERR_PTR(ret);
        }
 
        /* OPP table is optional */
-       ret = dev_pm_opp_of_add_table(dev);
-       if (ret) {
+       ret = devm_pm_opp_of_add_table(dev);
+       if (ret)
                dev_err(dev, "failed to add DP OPP table\n");
-               dev_pm_opp_put_clkname(ctrl->opp_table);
-               ctrl->opp_table = NULL;
-       }
 
        init_completion(&ctrl->idle_comp);
        init_completion(&ctrl->video_comp);
@@ -1915,16 +1910,3 @@ struct dp_ctrl *dp_ctrl_get(struct device *dev, struct 
dp_link *link,
 
        return &ctrl->dp_ctrl;
 }
-
-void dp_ctrl_put(struct dp_ctrl *dp_ctrl)
-{
-       struct dp_ctrl_private *ctrl;
-
-       ctrl = container_of(dp_ctrl, struct dp_ctrl_private, dp_ctrl);
-
-       if (ctrl->opp_table) {
-               dev_pm_opp_of_remove_table(ctrl->dev);
-               dev_pm_opp_put_clkname(ctrl->opp_table);
-               ctrl->opp_table = NULL;
-       }
-}
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.h b/drivers/gpu/drm/msm/dp/dp_ctrl.h
index a836bd358447..a6f6fa2c2aef 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.h
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.h
@@ -31,6 +31,5 @@ struct dp_ctrl *dp_ctrl_get(struct device *dev, struct 
dp_link *link,
                        struct dp_panel *panel, struct drm_dp_aux *aux,
                        struct dp_power *power, struct dp_catalog *catalog,
                        struct dp_parser *parser);
-void dp_ctrl_put(struct dp_ctrl *dp_ctrl);
 
 #endif /* _DP_CTRL_H_ */
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c 
b/drivers/gpu/drm/msm/dp/dp_display.c
index 5a39da6e1eaf..6dde09c0c52e 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -720,7 +720,6 @@ static int dp_irq_hpd_handle(struct dp_display_private *dp, 
u32 data)
 static void dp_display_deinit_sub_modules(struct dp_display_private *dp)
 {
        dp_debug_put(dp->debug);
-       dp_ctrl_put(dp->ctrl);
        dp_panel_put(dp->panel);
        dp_aux_put(dp->aux);
        dp_audio_put(dp->audio);
@@ -814,13 +813,11 @@ static int dp_init_sub_modules(struct dp_display_private 
*dp)
                rc = PTR_ERR(dp->audio);
                pr_err("failed to initialize audio, rc = %d\n", rc);
                dp->audio = NULL;
-               goto error_audio;
+               goto error_ctrl;
        }
 
        return rc;
 
-error_audio:
-       dp_ctrl_put(dp->ctrl);
 error_ctrl:
        dp_panel_put(dp->panel);
 error_link:
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c 
b/drivers/gpu/drm/msm/dsi/dsi_host.c
index ab281cba0f08..e0fca4224cfd 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -113,8 +113,6 @@ struct msm_dsi_host {
        struct clk *pixel_clk_src;
        struct clk *byte_intf_clk;
 
-       struct opp_table *opp_table;
-
        u32 byte_clk_rate;
        u32 pixel_clk_rate;
        u32 esc_clk_rate;
@@ -1886,14 +1884,13 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
                goto fail;
        }
 
-       msm_host->opp_table = dev_pm_opp_set_clkname(&pdev->dev, "byte");
-       if (IS_ERR(msm_host->opp_table))
-               return PTR_ERR(msm_host->opp_table);
+       ret = devm_pm_opp_set_clkname(&pdev->dev, "byte");
+       if (ret)
+               return ret;
        /* OPP table is optional */
-       ret = dev_pm_opp_of_add_table(&pdev->dev);
+       ret = devm_pm_opp_of_add_table(&pdev->dev);
        if (ret && ret != -ENODEV) {
                dev_err(&pdev->dev, "invalid OPP table in device tree\n");
-               dev_pm_opp_put_clkname(msm_host->opp_table);
                return ret;
        }
 
@@ -1932,8 +1929,6 @@ void msm_dsi_host_destroy(struct mipi_dsi_host *host)
        mutex_destroy(&msm_host->cmd_mutex);
        mutex_destroy(&msm_host->dev_mutex);
 
-       dev_pm_opp_of_remove_table(&msm_host->pdev->dev);
-       dev_pm_opp_put_clkname(msm_host->opp_table);
        pm_runtime_disable(&msm_host->pdev->dev);
 }
 
-- 
2.30.2

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