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authorKevin Hilman <khilman@linaro.org>2015-05-22 14:30:13 -0700
committerKevin Hilman <khilman@linaro.org>2015-05-22 14:30:13 -0700
commite49d192fe7dcdc7bc46987f9981dc90f61e5f28c (patch)
tree84579e5de62f4d67d65203450d0e0268e1e47f2f /drivers/input/mouse/elantech.c
parenta61d3b775855a1d67d97ca0aa389489cb8a9320d (diff)
parent51af817611f2c0987030d024f24fc7ea95dd33e6 (diff)
Merge branch 'linux-3.18.y' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into linux-linaro-lsk-v3.18lsk-v3.18-15.05
* 'linux-3.18.y' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable: (222 commits) Linux 3.18.14 Drivers: hv: vmbus: Don't wait after requesting offers hfsplus: don't store special "osx" xattr prefix on-disk drm/radeon: check new address before removing old one drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5 drm/radeon: adjust pll when audio is not enabled 3w-sas: fix command completion race 3w-9xxx: fix command completion race 3w-xxxx: fix command completion race ext4: move check under lock scope to close a race. ext4: fix data corruption caused by unwritten and delayed extents uas: Set max_sectors_240 quirk for ASM1053 devices uas: Add US_FL_MAX_SECTORS_240 flag uas: Allow uas_use_uas_driver to return usb-storage flags rbd: end I/O the entire obj_request on error tty/serial: at91: maxburst was missing for dma transfers ACPI / SBS: Enable battery manager when present btrfs: unlock i_mutex after attempting to delete subvolume during send ASoC: rt5677: fixed wrong DMIC ref clock ASoC: dapm: Enable autodisable on SOC_DAPM_SINGLE_TLV_AUTODISABLE ...
Diffstat (limited to 'drivers/input/mouse/elantech.c')
-rw-r--r--drivers/input/mouse/elantech.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 6e22682c8255..991dc6b20a58 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -893,6 +893,21 @@ static psmouse_ret_t elantech_process_byte(struct psmouse *psmouse)
}
/*
+ * This writes the reg_07 value again to the hardware at the end of every
+ * set_rate call because the register loses its value. reg_07 allows setting
+ * absolute mode on v4 hardware
+ */
+static void elantech_set_rate_restore_reg_07(struct psmouse *psmouse,
+ unsigned int rate)
+{
+ struct elantech_data *etd = psmouse->private;
+
+ etd->original_set_rate(psmouse, rate);
+ if (elantech_write_reg(psmouse, 0x07, etd->reg_07))
+ psmouse_err(psmouse, "restoring reg_07 failed\n");
+}
+
+/*
* Put the touchpad into absolute mode
*/
static int elantech_set_absolute_mode(struct psmouse *psmouse)
@@ -1094,6 +1109,8 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
* Asus K53SV 0x450f01 78, 15, 0c 2 hw buttons
* Asus G46VW 0x460f02 00, 18, 0c 2 hw buttons
* Asus G750JX 0x360f00 00, 16, 0c 2 hw buttons
+ * Asus TP500LN 0x381f17 10, 14, 0e clickpad
+ * Asus X750JN 0x381f17 10, 14, 0e clickpad
* Asus UX31 0x361f00 20, 15, 0e clickpad
* Asus UX32VD 0x361f02 00, 15, 0e clickpad
* Avatar AVIU-145A2 0x361f00 ? clickpad
@@ -1635,6 +1652,11 @@ int elantech_init(struct psmouse *psmouse)
goto init_fail;
}
+ if (etd->fw_version == 0x381f17) {
+ etd->original_set_rate = psmouse->set_rate;
+ psmouse->set_rate = elantech_set_rate_restore_reg_07;
+ }
+
if (elantech_set_input_params(psmouse)) {
psmouse_err(psmouse, "failed to query touchpad range.\n");
goto init_fail;