Input: silead - Switch to firmware_request_platform for retreiving the fw

Unfortunately sofar we have been unable to get permission to redistribute
Silead touchscreen firmwares in linux-firmware. This means that people
need to find and install the firmware themselves before the touchscreen
will work

Some UEFI/x86 tablets with a Silead touchscreen have a copy of the fw
embedded in their UEFI boot-services code.

This commit makes the silead driver use the new firmware_request_platform
function, which will fallback to looking for such an embedded copy when
direct filesystem lookup fails. This will make the touchscreen work OOTB
on devices where there is a fw copy embedded in the UEFI code.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200115163554.101315-8-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c
index ad8b6a2bfd3640bcc55f07fdfbdb25649a9f0dbd..8fa2f3b7cfd8bfeedb95a76a93d6e5578af1e6eb 100644 (file)
--- a/drivers/input/touchscreen/silead.c
+++ b/drivers/input/touchscreen/silead.c
@@ -288,7 +288,7 @@ static int silead_ts_load_fw(struct i2c_client *client)
 
        dev_dbg(dev, "Firmware file name: %s", data->fw_name);
 
-       error = request_firmware(&fw, data->fw_name, dev);
+       error = firmware_request_platform(&fw, data->fw_name, dev);
        if (error) {
                dev_err(dev, "Firmware request error %d\n", error);
                return error;