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From: Daniel Martin <consume.noise@gmail.com>
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Date: Sun, 8 Mar 2015 22:27:37 -0700
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Subject: [PATCH] Input: synaptics - split synaptics_resolution(), query first
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Split the function synaptics_resolution() into synaptics_resolution() and
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synaptics_quirks(). synaptics_resolution() will be called before
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synaptics_quirks() to query dimensions and resolutions before overwriting
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them with quirks.
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Cc: stable@vger.kernel.org
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Signed-off-by: Daniel Martin <consume.noise@gmail.com>
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Acked-by: Hans de Goede <hdegoede@redhat.com>
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Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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---
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drivers/input/mouse/synaptics.c | 35 +++++++++++++++++++++++------------
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1 file changed, 23 insertions(+), 12 deletions(-)
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diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
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index f2cceb6493a0..fc7e1db7530e 100644
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--- a/drivers/input/mouse/synaptics.c
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+++ b/drivers/input/mouse/synaptics.c
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@@ -346,7 +346,6 @@ static int synaptics_resolution(struct psmouse *psmouse)
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{
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struct synaptics_data *priv = psmouse->private;
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unsigned char resp[3];
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- int i;
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if (SYN_ID_MAJOR(priv->identity) < 4)
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return 0;
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@@ -358,17 +357,6 @@ static int synaptics_resolution(struct psmouse *psmouse)
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}
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}
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- for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
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- if (psmouse_matches_pnp_id(psmouse,
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- min_max_pnpid_table[i].pnp_ids)) {
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- priv->x_min = min_max_pnpid_table[i].x_min;
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- priv->x_max = min_max_pnpid_table[i].x_max;
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- priv->y_min = min_max_pnpid_table[i].y_min;
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- priv->y_max = min_max_pnpid_table[i].y_max;
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- return 0;
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- }
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- }
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-
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if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
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SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
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if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
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@@ -394,6 +382,27 @@ static int synaptics_resolution(struct psmouse *psmouse)
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return 0;
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}
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+/*
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+ * Apply quirk(s) if the hardware matches
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+ */
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+
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+static void synaptics_apply_quirks(struct psmouse *psmouse)
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+{
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+ struct synaptics_data *priv = psmouse->private;
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+ int i;
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+
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+ for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
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+ if (psmouse_matches_pnp_id(psmouse,
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+ min_max_pnpid_table[i].pnp_ids)) {
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+ priv->x_min = min_max_pnpid_table[i].x_min;
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+ priv->x_max = min_max_pnpid_table[i].x_max;
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+ priv->y_min = min_max_pnpid_table[i].y_min;
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+ priv->y_max = min_max_pnpid_table[i].y_max;
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+ break;
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+ }
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+ }
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+}
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+
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static int synaptics_query_hardware(struct psmouse *psmouse)
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{
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if (synaptics_identify(psmouse))
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@@ -409,6 +418,8 @@ static int synaptics_query_hardware(struct psmouse *psmouse)
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if (synaptics_resolution(psmouse))
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return -1;
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+ synaptics_apply_quirks(psmouse);
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+
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return 0;
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}
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--
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2.1.0
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