From: Sean Paul seanpaul@chromium.org
Now that we don't have any event handlers, remove dpu_power_handle!
Changes in v2: - None
Reviewed-by: Jeykumar Sankaran jsanka@codeaurora.org Signed-off-by: Sean Paul seanpaul@chromium.org --- drivers/gpu/drm/msm/Makefile | 1 - drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 11 -- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 3 - .../gpu/drm/msm/disp/dpu1/dpu_power_handle.c | 136 ------------------ .../gpu/drm/msm/disp/dpu1/dpu_power_handle.h | 113 --------------- 5 files changed, 264 deletions(-) delete mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c delete mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile index 19ab521d4c3a..7d02ef3655b5 100644 --- a/drivers/gpu/drm/msm/Makefile +++ b/drivers/gpu/drm/msm/Makefile @@ -72,7 +72,6 @@ msm-y := \ disp/dpu1/dpu_kms.o \ disp/dpu1/dpu_mdss.o \ disp/dpu1/dpu_plane.o \ - disp/dpu1/dpu_power_handle.o \ disp/dpu1/dpu_rm.o \ disp/dpu1/dpu_vbif.o \ msm_atomic.o \ diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index af666d917a0b..9f7da56bb453 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -1060,8 +1060,6 @@ static int dpu_bind(struct device *dev, struct device *master, void *data) return ret; }
- dpu_power_resource_init(pdev, &dpu_kms->phandle); - platform_set_drvdata(pdev, dpu_kms);
msm_kms_init(&dpu_kms->base, &kms_funcs); @@ -1081,7 +1079,6 @@ static void dpu_unbind(struct device *dev, struct device *master, void *data) struct dpu_kms *dpu_kms = platform_get_drvdata(pdev); struct dss_module_power *mp = &dpu_kms->mp;
- dpu_power_resource_deinit(pdev, &dpu_kms->phandle); msm_dss_put_clk(mp->clk_config, mp->num_clk); devm_kfree(&pdev->dev, mp->clk_config); mp->num_clk = 0; @@ -1120,10 +1117,6 @@ static int __maybe_unused dpu_runtime_suspend(struct device *dev) return rc; }
- rc = dpu_power_resource_enable(&dpu_kms->phandle, false); - if (rc) - DPU_ERROR("resource disable failed: %d\n", rc); - rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false); if (rc) DPU_ERROR("clock disable failed rc:%d\n", rc); @@ -1157,10 +1150,6 @@ static int __maybe_unused dpu_runtime_resume(struct device *dev) drm_for_each_crtc(crtc, ddev) dpu_crtc_runtime_resume(crtc);
- rc = dpu_power_resource_enable(&dpu_kms->phandle, true); - if (rc) - DPU_ERROR("resource enable failed: %d\n", rc); - return rc; }
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index 4e5acacb3065..59e18e2d3c59 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -31,7 +31,6 @@ #include "dpu_hw_top.h" #include "dpu_io_util.h" #include "dpu_rm.h" -#include "dpu_power_handle.h" #include "dpu_irq.h" #include "dpu_core_perf.h"
@@ -114,8 +113,6 @@ struct dpu_kms { int core_rev; struct dpu_mdss_cfg *catalog;
- struct dpu_power_handle phandle; - /* directory entry for debugfs */ struct dentry *debugfs_root; struct dentry *debugfs_danger; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c deleted file mode 100644 index 8e64f0a52147..000000000000 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.c +++ /dev/null @@ -1,136 +0,0 @@ -/* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only 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. - * - */ - -#define pr_fmt(fmt) "[drm:%s:%d]: " fmt, __func__, __LINE__ - -#include <linux/kernel.h> -#include <linux/of.h> -#include <linux/string.h> -#include <linux/of_address.h> -#include <linux/slab.h> -#include <linux/mutex.h> -#include <linux/of_platform.h> - -#include "dpu_power_handle.h" -#include "dpu_trace.h" - -static void dpu_power_event_trigger_locked(struct dpu_power_handle *phandle, - u32 event_type) -{ - struct dpu_power_event *event; - - list_for_each_entry(event, &phandle->event_list, list) { - if (event->event_type & event_type) - event->cb_fnc(event_type, event->usr); - } -} - -void dpu_power_resource_init(struct platform_device *pdev, - struct dpu_power_handle *phandle) -{ - phandle->dev = &pdev->dev; - - INIT_LIST_HEAD(&phandle->event_list); - - mutex_init(&phandle->phandle_lock); -} - -void dpu_power_resource_deinit(struct platform_device *pdev, - struct dpu_power_handle *phandle) -{ - struct dpu_power_event *curr_event, *next_event; - - if (!phandle || !pdev) { - pr_err("invalid input param\n"); - return; - } - - mutex_lock(&phandle->phandle_lock); - list_for_each_entry_safe(curr_event, next_event, - &phandle->event_list, list) { - pr_err("event:%d, client:%s still registered\n", - curr_event->event_type, - curr_event->client_name); - curr_event->active = false; - list_del(&curr_event->list); - } - mutex_unlock(&phandle->phandle_lock); -} - -int dpu_power_resource_enable(struct dpu_power_handle *phandle, bool enable) -{ - u32 event_type; - - if (!phandle) { - pr_err("invalid input argument\n"); - return -EINVAL; - } - - mutex_lock(&phandle->phandle_lock); - - event_type = enable ? DPU_POWER_EVENT_ENABLE : DPU_POWER_EVENT_DISABLE; - - dpu_power_event_trigger_locked(phandle, event_type); - - mutex_unlock(&phandle->phandle_lock); - return 0; -} - -struct dpu_power_event *dpu_power_handle_register_event( - struct dpu_power_handle *phandle, - u32 event_type, void (*cb_fnc)(u32 event_type, void *usr), - void *usr, char *client_name) -{ - struct dpu_power_event *event; - - if (!phandle) { - pr_err("invalid power handle\n"); - return ERR_PTR(-EINVAL); - } else if (!cb_fnc || !event_type) { - pr_err("no callback fnc or event type\n"); - return ERR_PTR(-EINVAL); - } - - event = kzalloc(sizeof(struct dpu_power_event), GFP_KERNEL); - if (!event) - return ERR_PTR(-ENOMEM); - - event->event_type = event_type; - event->cb_fnc = cb_fnc; - event->usr = usr; - strlcpy(event->client_name, client_name, MAX_CLIENT_NAME_LEN); - event->active = true; - - mutex_lock(&phandle->phandle_lock); - list_add(&event->list, &phandle->event_list); - mutex_unlock(&phandle->phandle_lock); - - return event; -} - -void dpu_power_handle_unregister_event( - struct dpu_power_handle *phandle, - struct dpu_power_event *event) -{ - if (!phandle || !event) { - pr_err("invalid phandle or event\n"); - } else if (!event->active) { - pr_err("power handle deinit already done\n"); - kfree(event); - } else { - mutex_lock(&phandle->phandle_lock); - list_del_init(&event->list); - mutex_unlock(&phandle->phandle_lock); - kfree(event); - } -} diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h deleted file mode 100644 index 7536624c8b20..000000000000 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_power_handle.h +++ /dev/null @@ -1,113 +0,0 @@ -/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only 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. - * - */ - -#ifndef _DPU_POWER_HANDLE_H_ -#define _DPU_POWER_HANDLE_H_ - -#define MAX_CLIENT_NAME_LEN 128 - -#define DPU_POWER_HANDLE_ENABLE_BUS_AB_QUOTA 0 -#define DPU_POWER_HANDLE_DISABLE_BUS_AB_QUOTA 0 -#define DPU_POWER_HANDLE_ENABLE_BUS_IB_QUOTA 1600000000 -#define DPU_POWER_HANDLE_DISABLE_BUS_IB_QUOTA 0 - -#include "dpu_io_util.h" - -/* events will be triggered on power handler enable/disable */ -#define DPU_POWER_EVENT_DISABLE BIT(0) -#define DPU_POWER_EVENT_ENABLE BIT(1) - -/* - * struct dpu_power_event - local event registration structure - * @client_name: name of the client registering - * @cb_fnc: pointer to desired callback function - * @usr: user pointer to pass to callback event trigger - * @event: refer to DPU_POWER_HANDLE_EVENT_* - * @list: list to attach event master list - * @active: indicates the state of dpu power handle - */ -struct dpu_power_event { - char client_name[MAX_CLIENT_NAME_LEN]; - void (*cb_fnc)(u32 event_type, void *usr); - void *usr; - u32 event_type; - struct list_head list; - bool active; -}; - -/** - * struct dpu_power_handle: power handle main struct - * @phandle_lock: lock to synchronize the enable/disable - * @dev: pointer to device structure - * @usecase_ndx: current usecase index - * @event_list: current power handle event list - */ -struct dpu_power_handle { - struct mutex phandle_lock; - struct device *dev; - u32 current_usecase_ndx; - struct list_head event_list; -}; - -/** - * dpu_power_resource_init() - initializes the dpu power handle - * @pdev: platform device to search the power resources - * @pdata: power handle to store the power resources - */ -void dpu_power_resource_init(struct platform_device *pdev, - struct dpu_power_handle *pdata); - -/** - * dpu_power_resource_deinit() - release the dpu power handle - * @pdev: platform device for power resources - * @pdata: power handle containing the resources - * - * Return: error code. - */ -void dpu_power_resource_deinit(struct platform_device *pdev, - struct dpu_power_handle *pdata); - -/** - * dpu_power_resource_enable() - enable/disable the power resources - * @pdata: power handle containing the resources - * @enable: boolean request for enable/disable - * - * Return: error code. - */ -int dpu_power_resource_enable(struct dpu_power_handle *pdata, bool enable); - -/** - * dpu_power_handle_register_event - register a callback function for an event. - * Clients can register for multiple events with a single register. - * Any block with access to phandle can register for the event - * notification. - * @phandle: power handle containing the resources - * @event_type: event type to register; refer DPU_POWER_HANDLE_EVENT_* - * @cb_fnc: pointer to desired callback function - * @usr: user pointer to pass to callback on event trigger - * - * Return: event pointer if success, or error code otherwise - */ -struct dpu_power_event *dpu_power_handle_register_event( - struct dpu_power_handle *phandle, - u32 event_type, void (*cb_fnc)(u32 event_type, void *usr), - void *usr, char *client_name); -/** - * dpu_power_handle_unregister_event - unregister callback for event(s) - * @phandle: power handle containing the resources - * @event: event pointer returned after power handle register - */ -void dpu_power_handle_unregister_event(struct dpu_power_handle *phandle, - struct dpu_power_event *event); - -#endif /* _DPU_POWER_HANDLE_H_ */