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can: m_can: m_can_chip_config(): actually enable internal timestamping
In commitdf06fd6782
("can: m_can: m_can_chip_config(): enable and configure internal timestamps") the timestamping in the m_can core should be enabled. In peripheral mode, the RX'ed CAN frames, TX compete frames and error events are sorted by the timestamp. The above mentioned commit however forgot to enable the timestamping. Add the missing bits to enable the timestamp counter to the write of the Timestamp Counter Configuration register. Link: https://lore.kernel.org/all/20220612212708.4081756-1-mkl@pengutronix.de Fixes:df06fd6782
("can: m_can: m_can_chip_config(): enable and configure internal timestamps") Cc: <stable@vger.kernel.org> # 5.13 Cc: Torin Cooper-Bennun <torin@maxiluxsystems.com> Reviewed-by: Chandrasekar Ramakrishnan <rcsekar@samsung.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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1 changed files with 3 additions and 1 deletions
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@ -1351,7 +1351,9 @@ static void m_can_chip_config(struct net_device *dev)
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/* enable internal timestamp generation, with a prescalar of 16. The
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* prescalar is applied to the nominal bit timing
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*/
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m_can_write(cdev, M_CAN_TSCC, FIELD_PREP(TSCC_TCP_MASK, 0xf));
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m_can_write(cdev, M_CAN_TSCC,
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FIELD_PREP(TSCC_TCP_MASK, 0xf) |
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FIELD_PREP(TSCC_TSS_MASK, TSCC_TSS_INTERNAL));
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m_can_config_endisable(cdev, false);
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