diff mbox series

[04/16] media: ti-vpe: cal: print errors on timeouts

Message ID 20200313114121.32182-4-tomi.valkeinen@ti.com
State New
Headers show
Series None | expand

Commit Message

Tomi Valkeinen March 13, 2020, 11:41 a.m. UTC 
The driver does not print any errors on ComplexIO reset timeout or when
waiting for stop-state, making it difficult to debug and notice
problems.

Add error prints for these cases.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/media/platform/ti-vpe/cal.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index f6ce0558752a..1499d443f414 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -842,6 +842,11 @@  static void csi2_wait_for_phy(struct cal_ctx *ctx)
 		reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port)), i,
 		(i >= 250) ? "(timeout)" : "");
 
+	if (reg_read_field(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port),
+			   CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_MASK) !=
+			   CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_RESETCOMPLETED)
+		ctx_err(ctx, "Timeout waiting for Complex IO reset done\n");
+
 	/* 4. G. Wait for all enabled lane to reach stop state */
 	for (i = 0; i < 10; i++) {
 		if (reg_read_field(ctx->dev,
@@ -855,6 +860,9 @@  static void csi2_wait_for_phy(struct cal_ctx *ctx)
 		ctx->csi2_port,
 		reg_read(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port)),
 		(i >= 10) ? "(timeout)" : "");
+	if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port),
+			   CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK) != 0)
+		ctx_err(ctx, "Timeout waiting for stop state\n");
 
 	ctx_dbg(1, ctx, "CSI2_%d_REG1 = 0x%08x (Bit(31,28) should be set!)\n",
 		(ctx->csi2_port - 1), reg_read(ctx->cc, CAL_CSI2_PHY_REG1));