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can: tcan4x5x: Remove invalid write in clear_interrupts

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[ Upstream commit 40c9e4f676abbe194541d88e796341c92d5a13c0 ]

Register 0x824 TCAN4X5X_MCAN_INT_REG is a read-only register. Any writes
to this register do not have any effect.

Remove this write. The m_can driver aldready clears the interrupts in
m_can_isr() by writing to M_CAN_IR which is translated to register
0x1050 which is a writable version of this register.

Fixes: 5443c226ba ("can: tcan4x5x: Add tcan4x5x driver to the kernel")
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-9-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Markus Schneider-Pargmann 2022-12-06 12:57:25 +01:00 committed by Greg Kroah-Hartman
parent 068672e75b
commit 7d67e8ccfc
1 changed files with 0 additions and 5 deletions
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5
drivers/net/can/m_can/tcan4x5x.c
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@ -291,11 +291,6 @@ static int tcan4x5x_clear_interrupts(struct m_can_classdev *cdev)
if (ret)
return ret;
ret = tcan4x5x_write_tcan_reg(cdev, TCAN4X5X_MCAN_INT_REG,
TCAN4X5X_ENABLE_MCAN_INT);
if (ret)
return ret;
ret = tcan4x5x_write_tcan_reg(cdev, TCAN4X5X_INT_FLAGS,
TCAN4X5X_CLEAR_ALL_INT);
if (ret)