Roger Quadros 47e3485af0 can: c_can: use regmap_update_bits() to modify RAMINIT register ... use of regmap_read() and regmap_write() in c_can_hw_raminit_syscon() is not safe as the RAMINIT register can be shared between different drivers at least for TI SoCs. To make the modification atomic we switch to using regmap_update_bits(). regmap_update_bits() skips writing to the register if it's read content is the same as what is going to be written. This causes an issue for us when we need to clear the DONE bit with the initial condition START:0, DONE:1 as DONE bit must be written with 1 to clear it. So we defer the clearing of DONE bit to later when we set the START bit. There we are sure that START bit is changed from 0 to 1 so the write of 1 to already set DONE bit will happen. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>		2015-01-15 16:58:00 +01:00
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c_can_pci.c	PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use	2014-08-12 12:15:14 -06:00
c_can_platform.c	can: c_can: use regmap_update_bits() to modify RAMINIT register	2015-01-15 16:58:00 +01:00
c_can.c	can: c_can: Disable pins when CAN interface is down	2014-11-17 12:19:27 +01:00
c_can.h	can: c_can: Add support for START pulse in RAMINIT sequence	2014-11-17 12:19:27 +01:00
Kconfig	can: c_can: remove obsolete STRICT_FRAME_ORDERING Kconfig option	2014-05-19 09:03:06 +02:00
Makefile	net: can: use kbuild magic to inherit debug settings	2014-08-18 01:03:38 +02:00