This is a note to let you know that I've just added the patch titled Input: elan_i2c - fix firmware update on newer ICs to the 5.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: input-elan_i2c-fix-firmware-update-on-newer-ics.patch and it can be found in the queue-5.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit cacf45da5059bad3faf5e47084395f0b875792f3 Author: jingle.wu <jingle.wu@xxxxxxxxxx> Date: Wed Nov 11 20:06:24 2020 -0800 Input: elan_i2c - fix firmware update on newer ICs [ Upstream commit ae3d6083acf60116d4f409677452399547ed2009 ] The argument to iap page type command depends on the firmware page size. Fixes: bfd9b92bc8f9 ("Input: elan_i2c - handle firmware updated on newer ICs") Signed-off-by: Jingle Wu <jingle.wu@xxxxxxxxxx> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/input/mouse/elan_i2c.h b/drivers/input/mouse/elan_i2c.h index c75b00c45d750..36e3cd9086716 100644 --- a/drivers/input/mouse/elan_i2c.h +++ b/drivers/input/mouse/elan_i2c.h @@ -78,7 +78,7 @@ struct elan_transport_ops { int (*iap_reset)(struct i2c_client *client); int (*prepare_fw_update)(struct i2c_client *client, u16 ic_type, - u8 iap_version); + u8 iap_version, u16 fw_page_size); int (*write_fw_block)(struct i2c_client *client, u16 fw_page_size, const u8 *page, u16 checksum, int idx); int (*finish_fw_update)(struct i2c_client *client, diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index c599e21a84784..61ed3f5ca2199 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -497,7 +497,8 @@ static int __elan_update_firmware(struct elan_tp_data *data, u16 sw_checksum = 0, fw_checksum = 0; error = data->ops->prepare_fw_update(client, data->ic_type, - data->iap_version); + data->iap_version, + data->fw_page_size); if (error) return error; diff --git a/drivers/input/mouse/elan_i2c_i2c.c b/drivers/input/mouse/elan_i2c_i2c.c index 5a496d4ffa491..13dc097eb6c65 100644 --- a/drivers/input/mouse/elan_i2c_i2c.c +++ b/drivers/input/mouse/elan_i2c_i2c.c @@ -517,7 +517,7 @@ static int elan_i2c_set_flash_key(struct i2c_client *client) return 0; } -static int elan_read_write_iap_type(struct i2c_client *client) +static int elan_read_write_iap_type(struct i2c_client *client, u16 fw_page_size) { int error; u16 constant; @@ -526,7 +526,7 @@ static int elan_read_write_iap_type(struct i2c_client *client) do { error = elan_i2c_write_cmd(client, ETP_I2C_IAP_TYPE_CMD, - ETP_I2C_IAP_TYPE_REG); + fw_page_size / 2); if (error) { dev_err(&client->dev, "cannot write iap type: %d\n", error); @@ -543,7 +543,7 @@ static int elan_read_write_iap_type(struct i2c_client *client) constant = le16_to_cpup((__le16 *)val); dev_dbg(&client->dev, "iap type reg: 0x%04x\n", constant); - if (constant == ETP_I2C_IAP_TYPE_REG) + if (constant == fw_page_size / 2) return 0; } while (--retry > 0); @@ -553,7 +553,7 @@ static int elan_read_write_iap_type(struct i2c_client *client) } static int elan_i2c_prepare_fw_update(struct i2c_client *client, u16 ic_type, - u8 iap_version) + u8 iap_version, u16 fw_page_size) { struct device *dev = &client->dev; int error; @@ -594,7 +594,7 @@ static int elan_i2c_prepare_fw_update(struct i2c_client *client, u16 ic_type, } if (ic_type >= 0x0D && iap_version >= 1) { - error = elan_read_write_iap_type(client); + error = elan_read_write_iap_type(client, fw_page_size); if (error) return error; } diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c index 8ff823751f3ba..1820f1cfc1dc4 100644 --- a/drivers/input/mouse/elan_i2c_smbus.c +++ b/drivers/input/mouse/elan_i2c_smbus.c @@ -340,7 +340,7 @@ static int elan_smbus_set_flash_key(struct i2c_client *client) } static int elan_smbus_prepare_fw_update(struct i2c_client *client, u16 ic_type, - u8 iap_version) + u8 iap_version, u16 fw_page_size) { struct device *dev = &client->dev; int len;