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Commit 949350b2 authored by Mao Jinlong's avatar Mao Jinlong Committed by Gerrit - the friendly Code Review server
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dcc_v2: Don't set the default value to sram when dcc is enabled 



If set the default value to sram when dcc is enabled, there will be
stuck issue for dcc dump.

Change-Id: I784993d6db41e1afed92ccc05bec0cf1987a3e04
Signed-off-by: default avatarMao Jinlong <jinlmao@codeaurora.org>
parent 5cad42a8

drivers/soc/qcom/dcc_v2.c

+22 −18
Original line number Diff line number Diff line
@@ -564,13 +564,15 @@ static int dcc_valid_list(struct dcc_drvdata *drvdata, int curr_list) 
		return -EINVAL;



	if (drvdata->enable[curr_list]) {

		dev_err(drvdata->dev, "DCC is already enabled\n");

		dev_err(drvdata->dev, "List %d is already enabled\n",

				curr_list);

		return -EINVAL;

	}



	lock_reg = dcc_readl(drvdata, DCC_LL_LOCK(curr_list));

	if (lock_reg & 0x1) {

		dev_err(drvdata->dev, "DCC is already enabled\n");

		dev_err(drvdata->dev, "List %d is already locked\n",

				curr_list);

		return -EINVAL;

	}
@@ -578,6 +580,21 @@ static int dcc_valid_list(struct dcc_drvdata *drvdata, int curr_list) 
	return 0;

}



static bool is_dcc_enabled(struct dcc_drvdata *drvdata)

{

	bool dcc_enable = false;

	int list;



	for (list = 0; list < DCC_MAX_LINK_LIST; list++) {

		if (drvdata->enable[list]) {

			dcc_enable = true;

			break;

		}

	}



	return dcc_enable;

}



static int dcc_enable(struct dcc_drvdata *drvdata)

{

	int ret = 0;
@@ -586,7 +603,9 @@ static int dcc_enable(struct dcc_drvdata *drvdata) 


	mutex_lock(&drvdata->mutex);



	if (!is_dcc_enabled(drvdata)) {

		memset_io(drvdata->ram_base, 0xDE, drvdata->ram_size);

	}



	for (list = 0; list < DCC_MAX_LINK_LIST; list++) {
@@ -667,21 +686,6 @@ static void dcc_disable(struct dcc_drvdata *drvdata) 
	mutex_unlock(&drvdata->mutex);

}



static bool is_dcc_enabled(struct dcc_drvdata *drvdata)

{

	bool dcc_enable = false;

	int list;



	for (list = 0; list < DCC_MAX_LINK_LIST; list++) {

		if (drvdata->enable[list]) {

			dcc_enable = true;

			break;

		}

	}



	return dcc_enable;

}



static ssize_t curr_list_show(struct device *dev,

			       struct device_attribute *attr, char *buf)

{