[PATCH v6 5/5] platform/x86: touchscreen_dmi: Add info for the Chuwi Vi8 Plus tablet

Hans de Goede
2018-06-01T12:53:30Z

Add touchscreen info for the Chuwi Vi8 Plus tablet. This tablet uses a
Chipone ICN8505 touchscreen controller, with the firmware used by the
touchscreen embedded in the EFI firmware.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v6:
-Switch from crc sums to SHA256 hashes for the firmware hash
---
drivers/platform/x86/touchscreen_dmi.c | 28 ++++++++++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index 8eb88bfcacbe..99eb73bbd1a0 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -359,6 +359,25 @@ static const struct ts_dmi_data onda_v891w_v1_data = {
.properties = onda_v891w_v1_props,
};

+static const struct property_entry efi_embedded_fw_props[] = {
+ PROPERTY_ENTRY_BOOL("efi-embedded-firmware"),
+ { }
+};
+
+static const struct ts_dmi_data chuwi_vi8_plus_data = {
+ .embedded_fw = {
+ .name = "chipone/icn8505-HAMP0002.fw",
+ .prefix = { 0xb0, 0x07, 0x00, 0x00, 0xe4, 0x07, 0x00, 0x00 },
+ .length = 35012,
+ .sha256 = { 0x93, 0xe5, 0x49, 0xe0, 0xb6, 0xa2, 0xb4, 0xb3,
+ 0x88, 0x96, 0x34, 0x97, 0x5e, 0xa8, 0x13, 0x78,
+ 0x72, 0x98, 0xb8, 0x29, 0xeb, 0x5c, 0xa7, 0xf1,
+ 0x25, 0x13, 0x43, 0xf4, 0x30, 0x7c, 0xfc, 0x7c },
+ },
+ .acpi_name = "CHPN0001:00",
+ .properties = efi_embedded_fw_props,
+};
+
const struct dmi_system_id touchscreen_dmi_table[] = {
{
/* CUBE iwork8 Air */
@@ -587,6 +606,15 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
DMI_EXACT_MATCH(DMI_BIOS_VERSION, "ONDA.W89EBBN08"),
},
},
+ {
+ /* Chuwi Vi8 Plus (CWI506) */
+ .driver_data = (void *)&chuwi_vi8_plus_data,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hampoo"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "D2D3_Vi8A1"),
+ DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+ },
+ },
{ },
};

--
2.17.0