linux-kernel - [PATCH v4 2/6] Input: synaptics - Log queried and quirked dimension values

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Message-Id: <1423237499-2930-3-git-send-email-benjamin.tissoires@redhat.com>
Date:	Fri,  6 Feb 2015 10:44:55 -0500
From:	Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Daniel Martin <consume.noise@...il.com>
Cc:	Hans de Goede <hdegoede@...hat.com>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v4 2/6] Input: synaptics - Log queried and quirked dimension values

From: Daniel Martin <consume.noise@...il.com>

Logging the dimension values we queried (info) and the values we use
from a quirk to overwrite (warn) can be helpful for debugging.

This partly relates to bug:
    https://bugzilla.kernel.org/show_bug.cgi?id=91541

Cc: stable@...r.kernel.org
Signed-off-by: Daniel Martin <consume.noise@...il.com>
---
 drivers/input/mouse/synaptics.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 8c2b343..0485e6b 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -365,6 +365,10 @@ static int synaptics_resolution(struct psmouse *psmouse)
 		} else {
 			priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
 			priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+			psmouse_info(psmouse,
+				     "queried max coordinates: "
+				     "x [..%d], y [..%d]\n",
+				     priv->x_max, priv->y_max);
 		}
 	}
 
@@ -376,6 +380,10 @@ static int synaptics_resolution(struct psmouse *psmouse)
 		} else {
 			priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
 			priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+			psmouse_info(psmouse,
+				     "queried min coordinates: "
+				     "x [%d..], y [%d..]\n",
+				     priv->x_min, priv->y_min);
 		}
 	}
 
@@ -398,6 +406,11 @@ static int synaptics_quirks(struct psmouse *psmouse)
 			priv->x_max = min_max_pnpid_table[i].x_max;
 			priv->y_min = min_max_pnpid_table[i].y_min;
 			priv->y_max = min_max_pnpid_table[i].y_max;
+			psmouse_warn(psmouse,
+				     "quirked min/max coordinates: "
+				     "x [%d..%d], y [%d..%d]\n",
+				     priv->x_min, priv->x_max,
+				     priv->y_min, priv->y_max);
 			break;
 		}
 	}
-- 
2.1.0

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