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Commit 1d97d483 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "msm: mhi: Check ERRDBG registers for device status"

parents 3035689d 66a25bec

drivers/bus/mhi/core/mhi_boot.c

+26 −7
Original line number Original line Diff line number Diff line
@@ -143,6 +143,17 @@ bool mhi_scan_rddm_cookie(struct mhi_controller *mhi_cntrl, u32 cookie) 
{

{

	int ret;

	int ret;

	u32 val;

	u32 val;

	int i;

	bool result = false;

	struct {

		char *name;

		u32 offset;

	} error_reg[] = {

		{ "ERROR_DBG1", BHI_ERRDBG1 },

		{ "ERROR_DBG2", BHI_ERRDBG2 },

		{ "ERROR_DBG3", BHI_ERRDBG3 },

		{ NULL },

	};





	if (!mhi_cntrl->rddm_supported || !cookie)

	if (!mhi_cntrl->rddm_supported || !cookie)

		return false;

		return false;
@@ -152,15 +163,23 @@ bool mhi_scan_rddm_cookie(struct mhi_controller *mhi_cntrl, u32 cookie) 
	if (!MHI_REG_ACCESS_VALID(mhi_cntrl->pm_state))

	if (!MHI_REG_ACCESS_VALID(mhi_cntrl->pm_state))

		return false;

		return false;





	ret = mhi_read_reg(mhi_cntrl, mhi_cntrl->bhi, BHI_ERRDBG2, &val);

	/* look for an RDDM cookie match in any of the error debug registers */

	for (i = 0; error_reg[i].name; i++) {

		ret = mhi_read_reg(mhi_cntrl, mhi_cntrl->bhi,

				   error_reg[i].offset, &val);

		if (ret)

		if (ret)

		return false;

			break;

		MHI_CNTRL_LOG("reg:%s value:0x%x\n", error_reg[i].name, val);





	MHI_CNTRL_LOG("BHI_ERRDBG2 value:0x%x\n", val);

		if (!(val ^ cookie)) {

	if (val == cookie)

			MHI_CNTRL_ERR("RDDM cookie found in %s\n",

					error_reg[i].name);

			return true;

			return true;

		}

	}





	return false;

	MHI_CNTRL_ERR("RDDM cookie not found\n");

	return result;

}

}

EXPORT_SYMBOL(mhi_scan_rddm_cookie);

EXPORT_SYMBOL(mhi_scan_rddm_cookie);