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From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: <linux-media@vger.kernel.org>, Benoit Parrot <bparrot@ti.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Hans Verkuil <hverkuil@xs4all.nl>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>
Subject: [PATCH v3 07/19] media: ti-vpe: cal: print errors on timeouts
Date: Wed, 25 Mar 2020 14:14:58 +0200	[thread overview]
Message-ID: <20200325121510.25923-8-tomi.valkeinen@ti.com> (raw)
In-Reply-To: <20200325121510.25923-1-tomi.valkeinen@ti.com>

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>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Benoit Parrot <bparrot@ti.com>
---
 drivers/media/platform/ti-vpe/cal.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index 838215a3f230..9bfe83fdd76e 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -839,10 +839,11 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx)
 			break;
 		usleep_range(1000, 1100);
 	}
-	ctx_dbg(3, ctx, "CAL_CSI2_COMPLEXIO_CFG(%d) = 0x%08x Complex IO Reset Done (%d) %s\n",
-		ctx->csi2_port,
-		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++) {
@@ -853,10 +854,10 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx)
 			break;
 		usleep_range(1000, 1100);
 	}
-	ctx_dbg(3, ctx, "CAL_CSI2_TIMING(%d) = 0x%08x Stop State Reached %s\n",
-		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));
-- 
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki


  parent reply	other threads:[~2020-03-25 12:16 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-25 12:14 [PATCH v3 00/19] CAL fixes and improvements Tomi Valkeinen
2020-03-25 12:14 ` [PATCH v3 01/19] media: ti-vpe: cal: fix DMA memory corruption Tomi Valkeinen
2020-03-25 12:14 ` [PATCH v3 02/19] media: ti-vpe: cal: improve enable_irqs Tomi Valkeinen
2020-03-25 12:14 ` [PATCH v3 03/19] media: ti-vpe: cal: fix use of wrong macro Tomi Valkeinen
2020-03-25 12:14 ` [PATCH v3 04/19] media: ti-vpe: cal: use runtime_resume for errata handling Tomi Valkeinen
2020-03-25 12:14 ` [PATCH v3 05/19] media: ti-vpe: cal: drop cal_runtime_get/put Tomi Valkeinen
2020-03-25 12:14 ` [PATCH v3 06/19] media: ti-vpe: cal: catch error irqs and print errors Tomi Valkeinen
2020-03-25 12:14 ` Tomi Valkeinen [this message]
2020-03-25 12:14 ` [PATCH v3 08/19] media: ti-vpe: cal: simplify irq handling Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 09/19] media: ti-vpe: cal: remove useless CAL_GEN_* macros Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 10/19] media: ti-vpe: cal: remove useless IRQ defines Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 11/19] media: ti-vpe: cal: use reg_write_field Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 12/19] media: ti-vpe: cal: cleanup CIO power enable/disable Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 13/19] media: ti-vpe: cal: fix dummy read to phy Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 14/19] media: ti-vpe: cal: program number of lines properly Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 15/19] media: ti-vpe: cal: set DMA max seg size Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 16/19] media: ti-vpe: cal: move code to separate functions Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 17/19] media: ti-vpe: cal: improve wait for CIO resetdone Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 18/19] media: ti-vpe: cal: improve wait for stop-state Tomi Valkeinen
2020-03-25 12:15 ` [PATCH v3 19/19] media: ti-vpe: cal: fix stop state timeout Tomi Valkeinen

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