soc: Add ratelimit to supress the pr_err/dev_err.

Add ratelimit to supress the logs flooding at the
time of SSR.In all places defined ratelimit as,
in 1sec one debug msg prints.

Change-Id: I6dfe140848e5cecb1b311c432f8311cdf0615a58
Signed-off-by: Prasad Kumpatla <[email protected]>

asoc/codecs/audio-ext-clk-up.c

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
-/* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2015-2020, The Linux Foundation. All rights reserved.
  */
 
 #include <linux/kernel.h>
@@ -14,6 +14,7 @@
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <dt-bindings/clock/qcom,audio-ext-clk.h>
+#include <linux/ratelimit.h>
 #include <dsp/q6afe-v2.h>
 #include "audio-ext-clk-up.h"
 
@@ -67,6 +68,7 @@ static int audio_ext_clk_prepare(struct clk_hw *hw)
 	struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw);
 	struct pinctrl_info *pnctrl_info = &clk_priv->audio_clk.pnctrl_info;
 	int ret;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	if ((clk_priv->clk_src >= AUDIO_EXT_CLK_LPASS) &&
 		(clk_priv->clk_src < AUDIO_EXT_CLK_LPASS_MAX))  {
@@ -75,7 +77,8 @@ static int audio_ext_clk_prepare(struct clk_hw *hw)
 			__func__, clk_priv->clk_src);
 		ret = afe_set_lpass_clk_cfg(IDX_RSVD_3, &clk_priv->clk_cfg);
 		if (ret < 0) {
-			pr_err_ratelimited("%s afe_set_digital_codec_core_clock failed\n",
+			if (__ratelimit(&rtl))
+				pr_err_ratelimited("%s afe_set_digital_codec_core_clock failed\n",
 				__func__);
 			return ret;
 		}
@@ -101,6 +104,7 @@ static void audio_ext_clk_unprepare(struct clk_hw *hw)
 	struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw);
 	struct pinctrl_info *pnctrl_info = &clk_priv->audio_clk.pnctrl_info;
 	int ret;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	if (pnctrl_info->pinctrl) {
 		ret = pinctrl_select_state(pnctrl_info->pinctrl,
@@ -118,9 +122,11 @@ static void audio_ext_clk_unprepare(struct clk_hw *hw)
 		trace_printk("%s: unvote for %d clock\n",
 			__func__, clk_priv->clk_src);
 		ret = afe_set_lpass_clk_cfg(IDX_RSVD_3, &clk_priv->clk_cfg);
-		if (ret < 0)
-			pr_err_ratelimited("%s: afe_set_lpass_clk_cfg failed, ret = %d\n",
+		if (ret < 0) {
+			if (__ratelimit(&rtl))
+				pr_err_ratelimited("%s: afe_set_lpass_clk_cfg failed, ret = %d\n",
 				__func__, ret);
+		}
 	}
 
 	if (pnctrl_info->base)
@@ -149,6 +155,7 @@ static int lpass_hw_vote_prepare(struct clk_hw *hw)
 {
 	struct audio_ext_clk_priv *clk_priv = to_audio_clk(hw);
 	int ret;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	if (clk_priv->clk_src == AUDIO_EXT_CLK_LPASS_CORE_HW_VOTE)  {
 		trace_printk("%s: vote for %d clock\n",
@@ -170,7 +177,8 @@ static int lpass_hw_vote_prepare(struct clk_hw *hw)
 			"LPASS_HW_DCODEC",
 			&clk_priv->lpass_audio_hwvote_client_handle);
 		if (ret < 0) {
-			pr_err("%s lpass audio hw vote failed %d\n",
+			if (__ratelimit(&rtl))
+				pr_err("%s lpass audio hw vote failed %d\n",
 				__func__, ret);
 			return ret;
 		}

asoc/codecs/bolero/bolero-cdc.c

@@ -15,6 +15,7 @@
 #include <linux/pm_runtime.h>
 #include <soc/swr-common.h>
 #include <dsp/digital-cdc-rsc-mgr.h>
+#include <linux/ratelimit.h>
 #include "bolero-cdc.h"
 #include "internal.h"
 #include "bolero-clk-rsc.h"
@@ -1444,6 +1445,7 @@ int bolero_runtime_resume(struct device *dev)
 {
 	struct bolero_priv *priv = dev_get_drvdata(dev->parent);
 	int ret = 0;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	mutex_lock(&priv->vote_lock);
 	if (priv->lpass_core_hw_vote == NULL) {
@@ -1472,8 +1474,9 @@ audio_vote:
 	if (priv->core_audio_vote_count == 0) {
 		ret = digital_cdc_rsc_mgr_hw_vote_enable(priv->lpass_audio_hw_vote);
 		if (ret < 0) {
-			dev_err(dev, "%s:lpass audio hw enable failed\n",
-				__func__);
+			if (__ratelimit(&rtl))
+				dev_err(dev, "%s:lpass audio hw enable failed\n",
+					__func__);
 			goto done;
 		}
 	}

asoc/codecs/bolero/bolero-clk-rsc.c

@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
+#include <linux/ratelimit.h>
 #include "bolero-cdc.h"
 #include "bolero-clk-rsc.h"
 
@@ -193,13 +194,15 @@ static int bolero_clk_rsc_mux0_clk_request(struct bolero_clk_rsc *priv,
 					   bool enable)
 {
 	int ret = 0;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	if (enable) {
 		/* Enable Requested Core clk */
 		if (priv->clk_cnt[clk_id] == 0) {
 			ret = clk_prepare_enable(priv->clk[clk_id]);
 			if (ret < 0) {
-				dev_err_ratelimited(priv->dev, "%s:clk_id %d enable failed\n",
+				if (__ratelimit(&rtl))
+					dev_err_ratelimited(priv->dev, "%s:clk_id %d enable failed\n",
 							__func__, clk_id);
 				goto done;
 			}
@@ -207,7 +210,8 @@ static int bolero_clk_rsc_mux0_clk_request(struct bolero_clk_rsc *priv,
 				ret = clk_prepare_enable(
 					priv->clk[clk_id + NPL_CLK_OFFSET]);
 				if (ret < 0) {
-					dev_err_ratelimited(priv->dev, "%s:clk_id %d enable failed\n",
+					if (__ratelimit(&rtl))
+						dev_err_ratelimited(priv->dev, "%s:clk_id %d enable failed\n",
 						__func__,
 						clk_id + NPL_CLK_OFFSET);
 					goto err;
@@ -246,6 +250,7 @@ static int bolero_clk_rsc_mux1_clk_request(struct bolero_clk_rsc *priv,
 	int ret = 0;
 	int default_clk_id = priv->default_clk_id[clk_id];
 	u32 muxsel = 0;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	clk_muxsel = bolero_clk_rsc_get_clk_muxsel(priv, clk_id);
 	if (!clk_muxsel) {
@@ -265,15 +270,17 @@ static int bolero_clk_rsc_mux1_clk_request(struct bolero_clk_rsc *priv,
 
 			ret = clk_prepare_enable(priv->clk[clk_id]);
 			if (ret < 0) {
-				dev_err_ratelimited(priv->dev, "%s:clk_id %d enable failed\n",
-					__func__, clk_id);
+				if (__ratelimit(&rtl))
+					dev_err_ratelimited(priv->dev, "%s:clk_id %d enable failed\n",
+						__func__, clk_id);
 				goto err_clk;
 			}
 			if (priv->clk[clk_id + NPL_CLK_OFFSET]) {
 				ret = clk_prepare_enable(
 					priv->clk[clk_id + NPL_CLK_OFFSET]);
 				if (ret < 0) {
-					dev_err_ratelimited(priv->dev, "%s:clk_id %d enable failed\n",
+					if (__ratelimit(&rtl))
+						dev_err_ratelimited(priv->dev, "%s:clk_id %d enable failed\n",
 						__func__,
 						clk_id + NPL_CLK_OFFSET);
 					goto err_npl_clk;

dsp/q6afe.c

@@ -17,6 +17,7 @@
 #include <dsp/q6audio-v2.h>
 #include <dsp/q6common.h>
 #include <dsp/q6core.h>
+#include <linux/ratelimit.h>
 #include <dsp/msm-audio-event-notify.h>
 #include <ipc/apr_tal.h>
 #include "adsp_err.h"
@@ -9216,6 +9217,7 @@ int afe_set_lpass_clk_cfg(int index, struct afe_clk_set *cfg)
 {
 	struct param_hdr_v3 param_hdr;
 	int ret = 0;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	if (!cfg) {
 		pr_err("%s: clock cfg is NULL\n", __func__);
@@ -9254,7 +9256,8 @@ int afe_set_lpass_clk_cfg(int index, struct afe_clk_set *cfg)
 	ret = q6afe_svc_pack_and_set_param_in_band(index, param_hdr,
 						   (u8 *) cfg);
 	if (ret < 0) {
-		pr_err_ratelimited("%s: AFE clk cfg failed with ret %d\n",
+		if (__ratelimit(&rtl))
+			pr_err_ratelimited("%s: AFE clk cfg failed with ret %d\n",
 				__func__, ret);
 		trace_printk("%s: AFE clk cfg failed with ret %d\n",
 		       __func__, ret);

ipc/apr.c

@@ -22,6 +22,7 @@
 #include <linux/slab.h>
 #include <linux/ipc_logging.h>
 #include <linux/of_platform.h>
+#include <linux/ratelimit.h>
 #include <soc/qcom/subsystem_restart.h>
 #include <linux/qcom_scm.h>
 #include <soc/snd_event.h>
@@ -370,6 +371,7 @@ int apr_send_pkt(void *handle, uint32_t *buf)
 	uint16_t w_len;
 	int rc;
 	unsigned long flags;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	if (!handle || !buf) {
 		pr_err("APR: Wrong parameters for %s\n",
@@ -383,7 +385,8 @@ int apr_send_pkt(void *handle, uint32_t *buf)
 
 	if ((svc->dest_id == APR_DEST_QDSP6) &&
 	    (apr_get_q6_state() != APR_SUBSYS_LOADED)) {
-		pr_err_ratelimited("%s: Still dsp is not Up\n", __func__);
+		if (__ratelimit(&rtl))
+			pr_err_ratelimited("%s: Still dsp is not Up\n", __func__);
 		return -ENETRESET;
 	} else if ((svc->dest_id == APR_DEST_MODEM) &&
 		   (apr_get_modem_state() == APR_SUBSYS_DOWN)) {

soc/pinctrl-lpi.c

@@ -13,6 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/types.h>
+#include <linux/ratelimit.h>
 #include <linux/clk.h>
 #include <linux/bitops.h>
 #include <linux/delay.h>
@@ -148,16 +149,19 @@ static int lpi_gpio_read(struct lpi_gpio_pad *pad, unsigned int addr)
 {
 	int ret = 0;
 	struct lpi_gpio_state *state = dev_get_drvdata(lpi_dev);
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	if (!lpi_dev_up) {
-		pr_err_ratelimited("%s: ADSP is down due to SSR, return\n",
+		if (__ratelimit(&rtl))
+			pr_err("%s: ADSP is down due to SSR, return\n",
 				   __func__);
 		return 0;
 	}
 	pm_runtime_get_sync(lpi_dev);
 	mutex_lock(&state->core_hw_vote_lock);
 	if (!state->core_hw_vote_status) {
-		pr_err_ratelimited("%s: core hw vote clk is not enabled\n",
+		if (__ratelimit(&rtl))
+			pr_err("%s: core hw vote clk is not enabled\n",
 				__func__);
 		ret = -EINVAL;
 		goto err;
@@ -179,6 +183,7 @@ static int lpi_gpio_write(struct lpi_gpio_pad *pad, unsigned int addr,
 {
 	struct lpi_gpio_state *state = dev_get_drvdata(lpi_dev);
 	int ret = 0;
+	static DEFINE_RATELIMIT_STATE(rtl, 1 * HZ, 1);
 
 	if (!lpi_dev_up) {
 		return 0;
@@ -186,7 +191,8 @@ static int lpi_gpio_write(struct lpi_gpio_pad *pad, unsigned int addr,
 	pm_runtime_get_sync(lpi_dev);
 	mutex_lock(&state->core_hw_vote_lock);
 	if (!state->core_hw_vote_status) {
-		pr_err_ratelimited("%s: core hw vote clk is not enabled\n",
+		if (__ratelimit(&rtl))
+			pr_err("%s: core hw vote clk is not enabled\n",
 				__func__);
 		ret = -EINVAL;
 		goto err;