Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) // This file is provided under a dual BSD/GPLv2 license.  When using or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) // redistributing this file, you may do so under either license.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) // Copyright(c) 2018 Intel Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include "ops.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include "sof-priv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include "sof-audio.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  * Helper function to determine the target DSP state during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  * system suspend. This function only cares about the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  * D-states. Platform-specific substates, if any, should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  * handled by the platform-specific parts.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) static u32 snd_sof_dsp_power_target(struct snd_sof_dev *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	u32 target_dsp_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	switch (sdev->system_suspend_target) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	case SOF_SUSPEND_S3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 		/* DSP should be in D3 if the system is suspending to S3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 		target_dsp_state = SOF_DSP_PM_D3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	case SOF_SUSPEND_S0IX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		 * Currently, the only criterion for retaining the DSP in D0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 		 * is that there are streams that ignored the suspend trigger.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 		 * Additional criteria such Soundwire clock-stop mode and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 		 * device suspend latency considerations will be added later.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		if (snd_sof_stream_suspend_ignored(sdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 			target_dsp_state = SOF_DSP_PM_D0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 			target_dsp_state = SOF_DSP_PM_D3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		/* This case would be during runtime suspend */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		target_dsp_state = SOF_DSP_PM_D3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	return target_dsp_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) static int sof_send_pm_ctx_ipc(struct snd_sof_dev *sdev, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	struct sof_ipc_pm_ctx pm_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	struct sof_ipc_reply reply;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	memset(&pm_ctx, 0, sizeof(pm_ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	/* configure ctx save ipc message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	pm_ctx.hdr.size = sizeof(pm_ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	pm_ctx.hdr.cmd = SOF_IPC_GLB_PM_MSG | cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	/* send ctx save ipc to dsp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	return sof_ipc_tx_message(sdev->ipc, pm_ctx.hdr.cmd, &pm_ctx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 				 sizeof(pm_ctx), &reply, sizeof(reply));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_ENABLE_DEBUGFS_CACHE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) static void sof_cache_debugfs(struct snd_sof_dev *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	struct snd_sof_dfsentry *dfse;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	list_for_each_entry(dfse, &sdev->dfsentry_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		/* nothing to do if debugfs buffer is not IO mem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		if (dfse->type == SOF_DFSENTRY_TYPE_BUF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		/* cache memory that is only accessible in D0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		if (dfse->access_type == SOF_DEBUGFS_ACCESS_D0_ONLY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 			memcpy_fromio(dfse->cache_buf, dfse->io_mem,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 				      dfse->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) static int sof_resume(struct device *dev, bool runtime_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	u32 old_state = sdev->dsp_power_state.state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	/* do nothing if dsp resume callbacks are not set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	if (!runtime_resume && !sof_ops(sdev)->resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	if (runtime_resume && !sof_ops(sdev)->runtime_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	/* DSP was never successfully started, nothing to resume */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	if (sdev->first_boot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	 * if the runtime_resume flag is set, call the runtime_resume routine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	 * or else call the system resume routine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	if (runtime_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		ret = snd_sof_dsp_runtime_resume(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		ret = snd_sof_dsp_resume(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		dev_err(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 			"error: failed to power up DSP after resume\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	 * Nothing further to be done for platforms that support the low power
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	 * D0 substate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	if (!runtime_resume && sof_ops(sdev)->set_power_state &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	    old_state == SOF_DSP_PM_D0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	sdev->fw_state = SOF_FW_BOOT_PREPARE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	/* load the firmware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	ret = snd_sof_load_firmware(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		dev_err(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 			"error: failed to load DSP firmware after resume %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 			ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	sdev->fw_state = SOF_FW_BOOT_IN_PROGRESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	 * Boot the firmware. The FW boot status will be modified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	 * in snd_sof_run_firmware() depending on the outcome.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	ret = snd_sof_run_firmware(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		dev_err(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 			"error: failed to boot DSP firmware after resume %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 			ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	/* resume DMA trace, only need send ipc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	ret = snd_sof_init_trace_ipc(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		/* non fatal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		dev_warn(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 			 "warning: failed to init trace after resume %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			 ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	/* restore pipelines */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	ret = sof_restore_pipelines(sdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		dev_err(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 			"error: failed to restore pipeline after resume %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 			ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	/* notify DSP of system resume */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	ret = sof_send_pm_ctx_ipc(sdev, SOF_IPC_PM_CTX_RESTORE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		dev_err(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 			"error: ctx_restore ipc error during resume %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 			ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static int sof_suspend(struct device *dev, bool runtime_suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	u32 target_state = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	/* do nothing if dsp suspend callback is not set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	if (!runtime_suspend && !sof_ops(sdev)->suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	if (runtime_suspend && !sof_ops(sdev)->runtime_suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	if (sdev->fw_state != SOF_FW_BOOT_COMPLETE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		goto suspend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	/* set restore_stream for all streams during system suspend */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	if (!runtime_suspend) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		ret = sof_set_hw_params_upon_resume(sdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 			dev_err(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 				"error: setting hw_params flag during suspend %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 				ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	target_state = snd_sof_dsp_power_target(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	/* Skip to platform-specific suspend if DSP is entering D0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	if (target_state == SOF_DSP_PM_D0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		goto suspend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	/* release trace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	snd_sof_release_trace(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_ENABLE_DEBUGFS_CACHE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	/* cache debugfs contents during runtime suspend */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	if (runtime_suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		sof_cache_debugfs(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	/* notify DSP of upcoming power down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	ret = sof_send_pm_ctx_ipc(sdev, SOF_IPC_PM_CTX_SAVE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (ret == -EBUSY || ret == -EAGAIN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		 * runtime PM has logic to handle -EBUSY/-EAGAIN so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		 * pass these errors up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		dev_err(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 			"error: ctx_save ipc error during suspend %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 			ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	} else if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		/* FW in unexpected state, continue to power down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		dev_warn(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 			 "ctx_save ipc error %d, proceeding with suspend\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 			 ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) suspend:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	/* return if the DSP was not probed successfully */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	if (sdev->fw_state == SOF_FW_BOOT_NOT_STARTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	/* platform-specific suspend */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	if (runtime_suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		ret = snd_sof_dsp_runtime_suspend(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		ret = snd_sof_dsp_suspend(sdev, target_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		dev_err(sdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 			"error: failed to power down DSP during suspend %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 			ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	/* Do not reset FW state if DSP is in D0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	if (target_state == SOF_DSP_PM_D0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	/* reset FW state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	sdev->fw_state = SOF_FW_BOOT_NOT_STARTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	sdev->enabled_cores_mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) int snd_sof_dsp_power_down_notify(struct snd_sof_dev *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	/* Notify DSP of upcoming power down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	if (sof_ops(sdev)->remove)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		return sof_send_pm_ctx_ipc(sdev, SOF_IPC_PM_CTX_SAVE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) int snd_sof_runtime_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	return sof_suspend(dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) EXPORT_SYMBOL(snd_sof_runtime_suspend);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) int snd_sof_runtime_idle(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	return snd_sof_dsp_runtime_idle(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) EXPORT_SYMBOL(snd_sof_runtime_idle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) int snd_sof_runtime_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	return sof_resume(dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) EXPORT_SYMBOL(snd_sof_runtime_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) int snd_sof_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	return sof_resume(dev, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) EXPORT_SYMBOL(snd_sof_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) int snd_sof_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	return sof_suspend(dev, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) EXPORT_SYMBOL(snd_sof_suspend);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) int snd_sof_prepare(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	const struct sof_dev_desc *desc = sdev->pdata->desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	/* will suspend to S3 by default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	sdev->system_suspend_target = SOF_SUSPEND_S3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	if (!desc->use_acpi_target_states)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) #if defined(CONFIG_ACPI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	if (acpi_target_system_state() == ACPI_STATE_S0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		sdev->system_suspend_target = SOF_SUSPEND_S0IX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) EXPORT_SYMBOL(snd_sof_prepare);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) void snd_sof_complete(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	sdev->system_suspend_target = SOF_SUSPEND_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) EXPORT_SYMBOL(snd_sof_complete);