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Commit a2fea0df authored by Sylwester Nawrocki's avatar Sylwester Nawrocki Committed by Mauro Carvalho Chehab
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[media] s5p-csis: Add registers logging for debugging 



Dump registers contents together with the event counters state
in VIDIOC_LOG_STATUS ioctl.

Signed-off-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent cd65a645

drivers/media/platform/s5p-fimc/mipi-csis.c

+28 −0
Original line number Diff line number Diff line
@@ -383,6 +383,30 @@ static int s5pcsis_clk_get(struct csis_state *state) 
	return -ENXIO;

}



static void dump_regs(struct csis_state *state, const char *label)

{

	struct {

		u32 offset;

		const char * const name;

	} registers[] = {

		{ 0x00, "CTRL" },

		{ 0x04, "DPHYCTRL" },

		{ 0x08, "CONFIG" },

		{ 0x0c, "DPHYSTS" },

		{ 0x10, "INTMSK" },

		{ 0x2c, "RESOL" },

		{ 0x38, "SDW_CONFIG" },

	};

	u32 i;



	v4l2_info(&state->sd, "--- %s ---\n", label);



	for (i = 0; i < ARRAY_SIZE(registers); i++) {

		u32 cfg = s5pcsis_read(state, registers[i].offset);

		v4l2_info(&state->sd, "%10s: 0x%08x\n", registers[i].name, cfg);

	}

}



static void s5pcsis_start_stream(struct csis_state *state)

{

	s5pcsis_reset(state);
@@ -583,7 +607,11 @@ static int s5pcsis_log_status(struct v4l2_subdev *sd) 
{

	struct csis_state *state = sd_to_csis_state(sd);



	mutex_lock(&state->lock);

	s5pcsis_log_counters(state, true);

	if (debug && (state->flags & ST_POWERED))

		dump_regs(state, __func__);

	mutex_unlock(&state->lock);

	return 0;

}