Split the firmware load code from si2157_init, in order to help to add further changes at the way firmware is handled on this device. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> --- To avoid mailbombing on a large number of people, only mailing lists were C/C on the cover. See [PATCH 0/3] at: https://lore.kernel.org/all/cover.1638958050.git.mchehab+huawei@xxxxxxxxxx/ drivers/media/tuners/si2157.c | 98 ++++++++++++++++++++--------------- 1 file changed, 56 insertions(+), 42 deletions(-) diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c index 75ddf7ed1faf..481a5db7fb69 100644 --- a/drivers/media/tuners/si2157.c +++ b/drivers/media/tuners/si2157.c @@ -76,16 +76,63 @@ static int si2157_cmd_execute(struct i2c_client *client, struct si2157_cmd *cmd) return ret; } -static int si2157_init(struct dvb_frontend *fe) +static int si2157_load_firmware(struct dvb_frontend *fe, + const char *fw_name) { struct i2c_client *client = fe->tuner_priv; - struct si2157_dev *dev = i2c_get_clientdata(client); - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - int ret, len, remaining; - struct si2157_cmd cmd; const struct firmware *fw; - const char *fw_name; + int ret, len, remaining; + struct si2157_cmd cmd; + + /* request the firmware, this will block and timeout */ + ret = request_firmware(&fw, fw_name, &client->dev); + if (ret) + return ret; + + /* firmware should be n chunks of 17 bytes */ + if (fw->size % 17 != 0) { + dev_err(&client->dev, "firmware file '%s' is invalid\n", + fw_name); + ret = -EINVAL; + goto err_release_firmware; + } + + dev_info(&client->dev, "downloading firmware from file '%s'\n", + fw_name); + + for (remaining = fw->size; remaining > 0; remaining -= 17) { + len = fw->data[fw->size - remaining]; + if (len > SI2157_ARGLEN) { + dev_err(&client->dev, "Bad firmware length\n"); + ret = -EINVAL; + goto err_release_firmware; + } + memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len); + cmd.wlen = len; + cmd.rlen = 1; + ret = si2157_cmd_execute(client, &cmd); + if (ret) { + dev_err(&client->dev, "firmware download failed %d\n", + ret); + goto err_release_firmware; + } + } + +err_release_firmware: + release_firmware(fw); + + return ret; +} + +static int si2157_init(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct i2c_client *client = fe->tuner_priv; + struct si2157_dev *dev = i2c_get_clientdata(client); unsigned int chip_id, xtal_trim; + struct si2157_cmd cmd; + const char *fw_name; + int ret; dev_dbg(&client->dev, "\n"); @@ -181,45 +228,13 @@ static int si2157_init(struct dvb_frontend *fe) if (fw_name == NULL) goto skip_fw_download; - /* request the firmware, this will block and timeout */ - ret = request_firmware(&fw, fw_name, &client->dev); + ret = si2157_load_firmware(fe, fw_name); if (ret) { dev_err(&client->dev, "firmware file '%s' not found\n", - fw_name); - goto err; - } - - /* firmware should be n chunks of 17 bytes */ - if (fw->size % 17 != 0) { - dev_err(&client->dev, "firmware file '%s' is invalid\n", - fw_name); - ret = -EINVAL; - goto err_release_firmware; - } - - dev_info(&client->dev, "downloading firmware from file '%s'\n", fw_name); - - for (remaining = fw->size; remaining > 0; remaining -= 17) { - len = fw->data[fw->size - remaining]; - if (len > SI2157_ARGLEN) { - dev_err(&client->dev, "Bad firmware length\n"); - ret = -EINVAL; - goto err_release_firmware; - } - memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len); - cmd.wlen = len; - cmd.rlen = 1; - ret = si2157_cmd_execute(client, &cmd); - if (ret) { - dev_err(&client->dev, "firmware download failed %d\n", - ret); - goto err_release_firmware; - } + goto err; } - release_firmware(fw); - skip_fw_download: /* reboot the tuner with new firmware? */ memcpy(cmd.args, "\x01\x01", 2); @@ -270,8 +285,7 @@ static int si2157_init(struct dvb_frontend *fe) dev->active = true; return 0; -err_release_firmware: - release_firmware(fw); + err: dev_dbg(&client->dev, "failed=%d\n", ret); return ret; -- 2.33.1
