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Commit 86680502 authored by Sabrina Kuo's avatar Sabrina Kuo Committed by damon.chu
Browse files

[ALPS08861573] smi: add bus status api and use dbg cmd to enable log 



[Description]
add smi_bus_status_check api and use dbg cmd to enable log

[Test]
camera stress

MTK-Commit-Id: d7460949ad209a7fa39f6ba316df645b6bbedd41

Signed-off-by: default avatarSabrina Kuo <Yi.Kuo@mediatek.com>
CR-Id: ALPS08861573
Feature: smi driver
Change-Id: Idaa8d756aea4cb7d52add709d71f4e04e7e1ebfa
parent e7722eec

drivers/memory/mtk-smi.c

+52 −0
Original line number Diff line number Diff line
@@ -3140,6 +3140,58 @@ static int mtk_smi_pd_callback(struct notifier_block *nb, 
	return NOTIFY_OK;

}



s32 mtk_smi_status_check(struct device *larbdev, bool log_enable)

{

	struct mtk_smi_larb *larb = dev_get_drvdata(larbdev);

	int i, ret = 0;

	u32 val;



	if (unlikely(!larb))

		return 0;



	/* check larb status */

	if (pm_runtime_get_if_in_use(larbdev)) {

		for (i = 0; i < SMI_LARB_PORT_NR_MAX; i++) {

			val = readl(larb->base + SMI_LARB_OSTD_MON_PORT(i));

			if (val) {

				pr_notice("[smi]%s:larb:%d port:%d ostd:%#x\n", __func__,

					larb->larbid, i, val);

				ret = 1;

			}

		}

		if (log_enable)

			pr_notice("[smi]%s:larb:%d check done.\n", __func__, larb->larbid);



		pm_runtime_put(larbdev);

	}



	/* check common status */

	for (i = 0; i < LARB_MAX_COMMON; i++) {

		if (larb->comm_port_id[i] >= 0 && larb->smi_common_dev[i]) {

			struct mtk_smi *common;



			common = dev_get_drvdata(larb->smi_common_dev[i]);

			if (pm_runtime_get_if_in_use(larb->smi_common_dev[i])) {

				val = readl(common->base + SMI_DEBUG_S(larb->comm_port_id[i]));

				if (val & 0x1ffe000) {

					pr_notice("[smi]%s:comm:%d port:%d ostd:%#x\n", __func__,

						common->commid, larb->comm_port_id[i], val);

					ret = 1;

				}

				if (log_enable)

					pr_notice("[smi]%s:comm:%d check done.\n",

								__func__, common->commid);

				pm_runtime_put(larb->smi_common_dev[i]);

			}

		}

	}

	if (log_enable)

		pr_notice("[smi]%s:check done, ret=%d\n", __func__, ret);



	return ret;

}

EXPORT_SYMBOL_GPL(mtk_smi_status_check);



static bool is_p2_lock;

void mtk_smi_larb_clamp_and_lock(struct device *larbdev, bool on)

{

include/soc/mediatek/smi.h

+6 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ void mtk_smi_dbg_dump_for_vdec(void); 
void mtk_smi_dbg_dump_for_mminfra(void);

void mtk_smi_init_power_off(void);

void mtk_smi_dump_last_pd(const char *user);

s32 mtk_smi_status_check(struct device *larbdev, bool log_enable);

void mtk_smi_larb_clamp_and_lock(struct device *larbdev, bool on);

s32 smi_sysram_enable(struct device *larbdev, const u32 master_id,

			const bool enable, const char *user);
@@ -105,6 +106,11 @@ static inline void mtk_smi_init_power_off(void) { } 


static inline void mtk_smi_dump_last_pd(const char *user) { }



static inline s32 mtk_smi_status_check(struct device *larbdev, bool log_enable)

{

	return 0;

}



static inline void mtk_smi_larb_clamp_and_lock(struct device *larbdev, bool on) { }



static inline