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Commit 01c92bc7 authored by Siddartha Mohanadoss's avatar Siddartha Mohanadoss
Browse files

thermal: tsens: Enhance debug logs on a crash 



Enhance reading debug bus id 0 multiple times on a failure
instance. Also read the status register for the TM region
one more time on a failure to check if the temperature
values fluctuate from the previous dump.

Change-Id: I8ed052cb84e0db08c738ce1faf56a38813615d59
Signed-off-by: default avatarSiddartha Mohanadoss <smohanad@codeaurora.org>
parent 783bbd7d

drivers/thermal/msm-tsens.c

+39 −8
Original line number Diff line number Diff line
@@ -701,10 +701,11 @@ 


/* debug defines */

#define TSENS_DBG_BUS_ID_0		0

#define TSENS_DBG_BUS_ID_1		1

#define TSENS_DBG_BUS_ID_15		15

#define TSENS_DEBUG_LOOP_COUNT_ID_0	30

#define TSENS_DEBUG_LOOP_COUNT		5

#define TSENS_DEBUG_SROT_OFFSET_RANGE	0x140

#define TSENS_DEBUG_TM_OFFSET_RANGE	0x80

#define TSENS_DEBUG_OFFSET_RANGE	20

#define TSENS_DEBUG_OFFSET_WORD1	0x4

#define TSENS_DEBUG_OFFSET_WORD2	0x8

#define TSENS_DEBUG_OFFSET_WORD3	0xc
@@ -1904,13 +1905,29 @@ static void tsens_poll(struct work_struct *work) 


		debug_dump = readl_relaxed(controller_id_addr);

		pr_err("Controller_id: 0x%x\n", debug_dump);

		for (i = TSENS_DBG_BUS_ID_0; i <= TSENS_DBG_BUS_ID_15; i++) {



		loop = 0;

		i = 0;

		while (loop < TSENS_DEBUG_LOOP_COUNT_ID_0) {

			writel_relaxed((i << 1) | 1,

				TSENS_DEBUG_CONTROL(tmdev->tsens_addr));

			debug_dump = readl_relaxed(debug_data_addr);

			r1 = readl_relaxed(debug_data_addr);

			r2 = readl_relaxed(debug_data_addr);

			r3 = readl_relaxed(debug_data_addr);

			r4 = readl_relaxed(debug_data_addr);

			pr_err("bus-id:%d value:0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",

				i, debug_dump, r1, r2, r3, r4);

			loop++;

		}



		for (i = TSENS_DBG_BUS_ID_1; i <= TSENS_DBG_BUS_ID_15; i++) {

			loop = 0;

			while (loop < TSENS_DEBUG_LOOP_COUNT) {

				writel_relaxed((i << 1) | 1,

					TSENS_DEBUG_CONTROL(tmdev->tsens_addr));

				debug_dump = readl_relaxed(debug_data_addr);

				pr_err("Data dump for debug bus-id:%d with data debug value: 0x%x\n",

				pr_err("bus-id:%d with value: 0x%x\n",

					i, debug_dump);

				loop++;

			}
@@ -1918,8 +1935,7 @@ static void tsens_poll(struct work_struct *work) 
		}



		pr_err("Start of TSENS TM dump\n");

		for (i = 0; i < TSENS_DEBUG_SROT_OFFSET_RANGE;

						i += TSENS_DEBUG_OFFSET_WORD1) {

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

			r1 = readl_relaxed(controller_id_addr + offset);

			r2 = readl_relaxed(controller_id_addr + (offset +

						TSENS_DEBUG_OFFSET_WORD1));
@@ -1935,8 +1951,7 @@ static void tsens_poll(struct work_struct *work) 


		offset = 0;

		pr_err("Start of TSENS SROT dump\n");

		for (i = 0; i < TSENS_DEBUG_TM_OFFSET_RANGE;

						i += TSENS_DEBUG_OFFSET_WORD1) {

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

			r1 = readl_relaxed(srot_addr + offset);

			r2 = readl_relaxed(srot_addr + (offset +

						TSENS_DEBUG_OFFSET_WORD1));
@@ -1950,6 +1965,22 @@ static void tsens_poll(struct work_struct *work) 
			offset += TSENS_DEBUG_OFFSET_ROW;

		}



		offset = 0;

		pr_err("Start of TSENS TM dump\n");

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

			r1 = readl_relaxed(controller_id_addr + offset);

			r2 = readl_relaxed(controller_id_addr + (offset +

						TSENS_DEBUG_OFFSET_WORD1));

			r3 = readl_relaxed(controller_id_addr +	(offset +

						TSENS_DEBUG_OFFSET_WORD2));

			r4 = readl_relaxed(controller_id_addr + (offset +

						TSENS_DEBUG_OFFSET_WORD3));



			pr_err("0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",

				offset, r1, r2, r3, r4);

			offset += TSENS_DEBUG_OFFSET_ROW;

		}



		BUG();

	}