]> git.dujemihanovic.xyz Git - linux.git/commit
can: m_can: pci: fix incorrect reference clock rate
authorMatthias Schiffer <matthias.schiffer@ew.tq-group.com>
Mon, 15 Nov 2021 09:18:49 +0000 (10:18 +0100)
committerMarc Kleine-Budde <mkl@pengutronix.de>
Tue, 7 Dec 2021 08:51:41 +0000 (09:51 +0100)
commit8c03b8bff765ac4146342ef90931bb50e788c758
treee5e75803165a1526470d59fe4079b00765cf404e
parentd737de2d7cc3efdacbf17d4e22efc75697bd76d9
can: m_can: pci: fix incorrect reference clock rate

When testing the CAN controller on our Ekhart Lake hardware, we
determined that all communication was running with twice the configured
bitrate. Changing the reference clock rate from 100MHz to 200MHz fixed
this. Intel's support has confirmed to us that 200MHz is indeed the
correct clock rate.

Fixes: cab7ffc0324f ("can: m_can: add PCI glue driver for Intel Elkhart Lake")
Link: https://lore.kernel.org/all/c9cf3995f45c363e432b3ae8eb1275e54f009fc8.1636967198.git.matthias.schiffer@ew.tq-group.com
Cc: stable@vger.kernel.org
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
drivers/net/can/m_can/m_can_pci.c