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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2015-11-20 10:58:07 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-12-02 09:35:40 -0800
commitc67566c6a1dc0dd0309a54e63656e57050cbb9fe (patch)
treed8bb7d678b4a419ad2563d59e1d06cc017834f6a
parent0c6da0733bff3bc7aaa1dcd63fefdbbca5a7a5f8 (diff)
Input: atmel_mxt_ts - add generic platform data for Chromebooks
Apparently people are installing generic Linux distributions not only on Pixels but also on other Chromebooks. Unfortunately on all of them Atmel parts assigned names ATML0000 and ATML0001, and do not carry any other configuration data. So let's create generic instance of platform data that should cover most of them (we assume that they will not be using T100 objects, since with those Google mapped BTN_LEFT onto a different GPIO, so slightly different keymap would be needed, but I think we used parts with T100 on ARM devices where we thankfully have DTS and can describe the devices better). Tested-by: Rich K <rgkirch@gmail.com> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
-rw-r--r--drivers/input/touchscreen/atmel_mxt_ts.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index c5622058c22b..159120be9614 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -2487,6 +2487,31 @@ static struct mxt_acpi_platform_data samus_platform_data[] = {
{ }
};
+static unsigned int chromebook_tp_buttons[] = {
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ BTN_LEFT
+};
+
+static struct mxt_acpi_platform_data chromebook_platform_data[] = {
+ {
+ /* Touchpad */
+ .hid = "ATML0000",
+ .pdata = {
+ .t19_num_keys = ARRAY_SIZE(chromebook_tp_buttons),
+ .t19_keymap = chromebook_tp_buttons,
+ },
+ },
+ {
+ /* Touchscreen */
+ .hid = "ATML0001",
+ },
+ { }
+};
+
static const struct dmi_system_id mxt_dmi_table[] = {
{
/* 2015 Google Pixel */
@@ -2497,6 +2522,14 @@ static const struct dmi_system_id mxt_dmi_table[] = {
},
.driver_data = samus_platform_data,
},
+ {
+ /* Other Google Chromebooks */
+ .ident = "Chromebook",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+ },
+ .driver_data = chromebook_platform_data,
+ },
{ }
};