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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-27 11:10:05 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-27 11:10:05 -0700 |
| commit | 6e64e22449023dc89dfb92c6f19d4c5b03f46889 (patch) | |
| tree | c0099a75238a2cdcedf005956963329eee0aac75 /drivers/input/touchscreen/goodix.c | |
| parent | 4ad2adc98f113d6c21d7bd365cd45ba88d4f7470 (diff) | |
| parent | cbfe8fa6cd672011c755c3cd85c9ffd4e2d10a6f (diff) | |
| download | linux-6e64e22449023dc89dfb92c6f19d4c5b03f46889.tar.gz | |
Merge 4.2-rc4 into staging-next
We want the iio and other fixes in this branch as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/input/touchscreen/goodix.c')
| -rw-r--r-- | drivers/input/touchscreen/goodix.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index b4d12e29abff..e36162b28c2a 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -15,6 +15,7 @@ */ #include <linux/kernel.h> +#include <linux/dmi.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/input/mt.h> @@ -34,6 +35,7 @@ struct goodix_ts_data { int abs_y_max; unsigned int max_touch_num; unsigned int int_trigger_type; + bool rotated_screen; }; #define GOODIX_MAX_HEIGHT 4096 @@ -60,6 +62,30 @@ static const unsigned long goodix_irq_flags[] = { IRQ_TYPE_LEVEL_HIGH, }; +/* + * Those tablets have their coordinates origin at the bottom right + * of the tablet, as if rotated 180 degrees + */ +static const struct dmi_system_id rotated_screen[] = { +#if defined(CONFIG_DMI) && defined(CONFIG_X86) + { + .ident = "WinBook TW100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "WinBook"), + DMI_MATCH(DMI_PRODUCT_NAME, "TW100") + } + }, + { + .ident = "WinBook TW700", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "WinBook"), + DMI_MATCH(DMI_PRODUCT_NAME, "TW700") + }, + }, +#endif + {} +}; + /** * goodix_i2c_read - read data from a register of the i2c slave device. * @@ -129,6 +155,11 @@ static void goodix_ts_report_touch(struct goodix_ts_data *ts, u8 *coor_data) int input_y = get_unaligned_le16(&coor_data[3]); int input_w = get_unaligned_le16(&coor_data[5]); + if (ts->rotated_screen) { + input_x = ts->abs_x_max - input_x; + input_y = ts->abs_y_max - input_y; + } + input_mt_slot(ts->input_dev, id); input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true); input_report_abs(ts->input_dev, ABS_MT_POSITION_X, input_x); @@ -223,6 +254,11 @@ static void goodix_read_config(struct goodix_ts_data *ts) ts->abs_y_max = GOODIX_MAX_HEIGHT; ts->max_touch_num = GOODIX_MAX_CONTACTS; } + + ts->rotated_screen = dmi_check_system(rotated_screen); + if (ts->rotated_screen) + dev_dbg(&ts->client->dev, + "Applying '180 degrees rotated screen' quirk\n"); } /** |