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Date: Tue, 7 Apr 2015 15:50:47 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Benjamin Tissoires <benjamin.tissoires@...hat.com>, Dmitry Torokhov <dmitry.torokhov@...il.com>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.13.y-ckt 110/156] Input: synaptics - do not retrieve the board id on old firmwares 3.13.11-ckt19 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Benjamin Tissoires <benjamin.tissoires@...hat.com> commit b57a7128be24062b5b5b26032b7cd58f1651547e upstream. The board id capability has been added in firmware 7.5. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com> Acked-by: Hans de Goede <hdegoede@...hat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- drivers/input/mouse/synaptics.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 5545b78..a9642f5 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -168,6 +168,10 @@ static int synaptics_board_id(struct psmouse *psmouse) struct synaptics_data *priv = psmouse->private; unsigned char bid[3]; + /* firmwares prior 7.5 have no board_id encoded */ + if (SYN_ID_FULL(priv->identity) < 0x705) + return 0; + if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) return -1; priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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