kernel/drivers/input/touchscreen/silead.c, branch linux-5.1.y

Input: silead - add MSSL0017 to acpi_device_id

2019-06-25T03:34:46Z

commit 0e658060e5fc50dc282885dc424a94b5d95547e5 upstream. On Chuwi Hi10 Plus, the Silead device id is MSSL0017. Signed-off-by: Daniel Smith Reviewed-by: Hans de Goede Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman

Merge branch 'next' into for-linus

2018-10-22T19:04:33Z

Prepare input updates for 4.20 merge window.

Input: silead - try firmware reload after unsuccessful resume

2018-10-05T18:52:06Z

A certain silead controller (Chip ID: 0x56810000) loses its firmware after suspend, causing the resume to fail. This patch tries to load the firmware, should a resume error occur and retries the resuming. Signed-off-by: Julian Sax Acked-by: Hans de Goede Signed-off-by: Dmitry Torokhov

Input: silead - add MSSL0002 ACPI HID

2018-06-05T17:29:38Z

The Silead touchscreen on the Chuwi Vi8 tablet uses MSSL0002 as ACPI HID, rather then the usual MSSL1680 id. Signed-off-by: Hans de Goede Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov

Input: silead - add Chuwi Hi8 support

2018-03-14T16:56:31Z

This commit add ACPI support for Chuwi Hi8 tablet. On the ACPI table of the tablet, GSL1680 is registered as MSSL0001, so the driver does not recognize the device. This commit resolve it. Signed-off-by: Shohei Maruyama Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede Signed-off-by: Dmitry Torokhov

Input: silead - add support for capactive home button found on some x86 tablets

2018-01-10T00:38:06Z

On some x86 tablets with a silead touchscreen the windows logo on the front is a capacitive home button. Touching this button results in a touch with bits 12-15 of the Y coordinates set, while normally only the lower 12 are used. Detect this and report a KEY_LEFTMETA press when this happens. Note for now we only respond to the Y coordinate bits 12-15 containing 0x01, on some tablets *without* a capacative button I've noticed these bits containing 0x04 when crossing the edges of the screen. Acked-by: Rob Herring Signed-off-by: Hans de Goede Signed-off-by: Dmitry Torokhov

Input: silead - disable interrupt during suspend

2017-05-30T02:58:25Z

When we put the touchscreen controller in low-power mode the irq pin may trigger (float) and if we then try to read a data packet we get the following error in dmesg: [ 478.801017] silead_ts i2c-MSSL1680:00: Data read error -121 This commit disables the irq during suspend/resume fixing this error. Signed-off-by: Hans de Goede Signed-off-by: Dmitry Torokhov

Input: silead - add OF device ID table

2017-03-23T21:46:31Z

The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. As pointed by Hans de Goede, there's no mssl1680 and this is just used in some ACPI systems to identify the gsl1680 chip. So isn't included in the OF device ID table since a DT should use the proper device name instead. Signed-off-by: Javier Martinez Canillas Signed-off-by: Dmitry Torokhov

Input: silead - add regulator support

2016-11-17T00:59:55Z

On some tablets the touchscreen controller is powered by separate regulators, add support for this. Signed-off-by: Hans de Goede Acked-by: Rob Herring Signed-off-by: Dmitry Torokhov

Input: silead_gsl1680 - use "silead/" prefix for firmware loading

2016-09-10T17:49:15Z

The silead touch-controller ICs use a different firmware per digitizer / tablet model. So there are going to be quite a few of then and they really should be under a separate subdir. This commit prefixes the default firmware names with "silead/" just like we are already doing for devicetree specified firmware names. Signed-off-by: Hans de Goede Signed-off-by: Dmitry Torokhov