linux-kernel - [PATCH v3 4/4] w1: ds1wm: add messages to make incorporation in mfd-drivers easier

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Date:   Tue, 18 Jul 2017 13:26:53 +0200
From:   Johannes Poehlmann <johannes.poehlmann@...-labs.de>
To:     linux-kernel@...r.kernel.org
Cc:     Johannes Poehlmann <johannes.poehlmann@...-labs.de>,
        Evgeniy Polyakov <zbr@...emap.net>,
        Greg Kroah-Hartman <greg@...ah.com>
Subject: [PATCH v3 4/4] w1: ds1wm: add messages to make incorporation in mfd-drivers easier

Signed-off-by: Johannes Poehlmann <johannes.poehlmann@...-labs.de>
Acked-by: Evgeniy Polyakov <zbr@...emap.net>
---
 drivers/w1/masters/ds1wm.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c
index 7cb4460..76b4573 100644
--- a/drivers/w1/masters/ds1wm.c
+++ b/drivers/w1/masters/ds1wm.c
@@ -580,8 +580,14 @@ static int ds1wm_probe(struct platform_device *pdev)
 
 	ret = devm_request_irq(&pdev->dev, ds1wm_data->irq, ds1wm_isr,
 			IRQF_SHARED, "ds1wm", ds1wm_data);
-	if (ret)
+	if (ret) {
+		dev_err(&ds1wm_data->pdev->dev,
+			"devm_request_irq %d failed with errno %d\n",
+			ds1wm_data->irq,
+			ret);
+
 		return ret;
+	}
 
 	ds1wm_up(ds1wm_data);
 
@@ -591,6 +597,13 @@ static int ds1wm_probe(struct platform_device *pdev)
 	if (ret)
 		goto err;
 
+	dev_info(&ds1wm_data->pdev->dev,
+		"ds1wm: probe successful, IAS: %d, rec.delay: %d, clockrate: %d, bus-shift: %d, is Hw Big Endian: %d\n",
+		plat->active_high,
+		plat->reset_recover_delay,
+		plat->clock_rate,
+		ds1wm_data->bus_shift,
+		ds1wm_data->is_hw_big_endian);
 	return 0;
 
 err:
-- 
2.1.4