5.4-stable review patch. If anyone has any objections, please let me know.
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From: Marek Vasut marek.vasut+renesas@mailbox.org
commit 7284922f3e4fa285dff1b8bb593aa9a0b8458f30 upstream.
Add Renesas R-Car D3 USB Download mode quirk and update comments on all the other Renesas R-Car USB Download mode quirks to discern them from each other. This follows R-Car Series, 3rd Generation reference manual Rev.2.00 chapter 19.2.8 USB download mode .
Fixes: 6d853c9e4104 ("usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode") Cc: stable stable@kernel.org Signed-off-by: Marek Vasut marek.vasut+renesas@mailbox.org Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Link: https://lore.kernel.org/r/20250209145708.106914-1-marek.vasut+renesas@mailbo... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/class/cdc-acm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
--- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1733,13 +1733,16 @@ static const struct usb_device_id acm_id { USB_DEVICE(0x0870, 0x0001), /* Metricom GS Modem */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, - { USB_DEVICE(0x045b, 0x023c), /* Renesas USB Download mode */ + { USB_DEVICE(0x045b, 0x023c), /* Renesas R-Car H3 USB Download mode */ .driver_info = DISABLE_ECHO, /* Don't echo banner */ }, - { USB_DEVICE(0x045b, 0x0248), /* Renesas USB Download mode */ + { USB_DEVICE(0x045b, 0x0247), /* Renesas R-Car D3 USB Download mode */ .driver_info = DISABLE_ECHO, /* Don't echo banner */ }, - { USB_DEVICE(0x045b, 0x024D), /* Renesas USB Download mode */ + { USB_DEVICE(0x045b, 0x0248), /* Renesas R-Car M3-N USB Download mode */ + .driver_info = DISABLE_ECHO, /* Don't echo banner */ + }, + { USB_DEVICE(0x045b, 0x024D), /* Renesas R-Car E3 USB Download mode */ .driver_info = DISABLE_ECHO, /* Don't echo banner */ }, { USB_DEVICE(0x0e8d, 0x0003), /* FIREFLY, MediaTek Inc; andrey.arapov@gmail.com */