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Diffstat (limited to 'drivers/staging/ccree/ssi_pm.c')
-rw-r--r--drivers/staging/ccree/ssi_pm.c145
1 files changed, 0 insertions, 145 deletions
diff --git a/drivers/staging/ccree/ssi_pm.c b/drivers/staging/ccree/ssi_pm.c
deleted file mode 100644
index 36a498098a70..000000000000
--- a/drivers/staging/ccree/ssi_pm.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Copyright (C) 2012-2017 ARM Limited or its affiliates.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "ssi_config.h"
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <crypto/ctr.h>
-#include <linux/pm_runtime.h>
-#include "ssi_driver.h"
-#include "ssi_buffer_mgr.h"
-#include "ssi_request_mgr.h"
-#include "ssi_sram_mgr.h"
-#include "ssi_sysfs.h"
-#include "ssi_ivgen.h"
-#include "ssi_hash.h"
-#include "ssi_pm.h"
-
-#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
-
-#define POWER_DOWN_ENABLE 0x01
-#define POWER_DOWN_DISABLE 0x00
-
-int ssi_power_mgr_runtime_suspend(struct device *dev)
-{
- struct ssi_drvdata *drvdata =
- (struct ssi_drvdata *)dev_get_drvdata(dev);
- int rc;
-
- dev_dbg(dev, "set HOST_POWER_DOWN_EN\n");
- cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE);
- rc = ssi_request_mgr_runtime_suspend_queue(drvdata);
- if (rc != 0) {
- dev_err(dev, "ssi_request_mgr_runtime_suspend_queue (%x)\n",
- rc);
- return rc;
- }
- fini_cc_regs(drvdata);
- cc_clk_off(drvdata);
- return 0;
-}
-
-int ssi_power_mgr_runtime_resume(struct device *dev)
-{
- int rc;
- struct ssi_drvdata *drvdata =
- (struct ssi_drvdata *)dev_get_drvdata(dev);
-
- dev_dbg(dev, "unset HOST_POWER_DOWN_EN\n");
- cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE);
-
- rc = cc_clk_on(drvdata);
- if (rc) {
- dev_err(dev, "failed getting clock back on. We're toast.\n");
- return rc;
- }
-
- rc = init_cc_regs(drvdata, false);
- if (rc != 0) {
- dev_err(dev, "init_cc_regs (%x)\n", rc);
- return rc;
- }
-
- rc = ssi_request_mgr_runtime_resume_queue(drvdata);
- if (rc != 0) {
- dev_err(dev, "ssi_request_mgr_runtime_resume_queue (%x)\n", rc);
- return rc;
- }
-
- /* must be after the queue resuming as it uses the HW queue*/
- ssi_hash_init_sram_digest_consts(drvdata);
-
- ssi_ivgen_init_sram_pool(drvdata);
- return 0;
-}
-
-int ssi_power_mgr_runtime_get(struct device *dev)
-{
- int rc = 0;
-
- if (ssi_request_mgr_is_queue_runtime_suspend(
- (struct ssi_drvdata *)dev_get_drvdata(dev))) {
- rc = pm_runtime_get_sync(dev);
- } else {
- pm_runtime_get_noresume(dev);
- }
- return rc;
-}
-
-int ssi_power_mgr_runtime_put_suspend(struct device *dev)
-{
- int rc = 0;
-
- if (!ssi_request_mgr_is_queue_runtime_suspend(
- (struct ssi_drvdata *)dev_get_drvdata(dev))) {
- pm_runtime_mark_last_busy(dev);
- rc = pm_runtime_put_autosuspend(dev);
- } else {
- /* Something wrong happens*/
- dev_err(dev, "request to suspend already suspended queue");
- rc = -EBUSY;
- }
- return rc;
-}
-
-#endif
-
-int ssi_power_mgr_init(struct ssi_drvdata *drvdata)
-{
- int rc = 0;
-#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
- struct device *dev = drvdata_to_dev(drvdata);
-
- /* must be before the enabling to avoid resdundent suspending */
- pm_runtime_set_autosuspend_delay(dev, SSI_SUSPEND_TIMEOUT);
- pm_runtime_use_autosuspend(dev);
- /* activate the PM module */
- rc = pm_runtime_set_active(dev);
- if (rc != 0)
- return rc;
- /* enable the PM module*/
- pm_runtime_enable(dev);
-#endif
- return rc;
-}
-
-void ssi_power_mgr_fini(struct ssi_drvdata *drvdata)
-{
-#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
- pm_runtime_disable(drvdata_to_dev(drvdata));
-#endif
-}