Patch "can: c_can: don't indicate triple sampling support for D_CAN" has been added to the 4.9-stable tree

Patch "can: c_can: don't indicate triple sampling support for D_CAN" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    can: c_can: don't indicate triple sampling support for D_CAN

to the 4.9-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:
     can-c_can-don-t-indicate-triple-sampling-support-for-d_can.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From fb5f0b3ef69b95e665e4bbe8a3de7201f09f1071 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Richard=20Sch=C3=BCtz?= <rschuetz@uni-koblenz.de>
Date: Sun, 29 Oct 2017 13:03:22 +0100
Subject: can: c_can: don't indicate triple sampling support for D_CAN
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Richard Schütz <rschuetz@uni-koblenz.de>

commit fb5f0b3ef69b95e665e4bbe8a3de7201f09f1071 upstream.

The D_CAN controller doesn't provide a triple sampling mode, so don't set
the CAN_CTRLMODE_3_SAMPLES flag in ctrlmode_supported. Currently enabling
triple sampling is a no-op.

Signed-off-by: Richard Schütz <rschuetz@uni-koblenz.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/can/c_can/c_can_pci.c      |    1 -
 drivers/net/can/c_can/c_can_platform.c |    1 -
 2 files changed, 2 deletions(-)

--- a/drivers/net/can/c_can/c_can_pci.c
+++ b/drivers/net/can/c_can/c_can_pci.c
@@ -178,7 +178,6 @@ static int c_can_pci_probe(struct pci_de
 		break;
 	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
-		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		break;
 	default:
 		ret = -EINVAL;
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -320,7 +320,6 @@ static int c_can_plat_probe(struct platf
 		break;
 	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
-		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		priv->read_reg = c_can_plat_read_reg_aligned_to_16bit;
 		priv->write_reg = c_can_plat_write_reg_aligned_to_16bit;
 		priv->read_reg32 = d_can_plat_read_reg32;


Patches currently in stable-queue which might be from rschuetz@uni-koblenz.de are

queue-4.9/can-c_can-don-t-indicate-triple-sampling-support-for-d_can.patch