Finn Thain 78448034fa m68k: mac: Fix IOP status/control register writes ... [ Upstream commit 931fc82a6a ] When writing values to the IOP status/control register make sure those values do not have any extraneous bits that will clear interrupt flags. To place the SCC IOP into bypass mode would be desirable but this is not achieved by writing IOP_DMAINACTIVE | IOP_RUN | IOP_AUTOINC | IOP_BYPASS to the control register. Drop this ineffective register write. Remove the flawed and unused iop_bypass() function. Make use of the unused iop_stop() function. Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Stan Johnson <userm57@yahoo.com> Cc: Joshua Thompson <funaho@jurai.org> Link: https://lore.kernel.org/r/09bcb7359a1719a18b551ee515da3c4c3cf709e6.1590880333.git.fthain@telegraphics.com.au Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-08-19 08:15:56 +02:00
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Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
baboon.c	m68k/mac: Fix apparent race condition in Baboon interrupt dispatch	2018-03-19 10:22:59 +01:00
config.c	m68k: mac: Don't call via_flush_cache() on Mac IIfx	2020-06-22 09:31:08 +02:00
iop.c	m68k: mac: Fix IOP status/control register writes	2020-08-19 08:15:56 +02:00
mac_penguin.S	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
macboing.c	m68k/macboing: Fix missed timer callback assignment	2017-11-24 16:19:40 +01:00
macints.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
misc.c	Char/Misc driver patches for 5.1-rc1	2019-03-06 14:18:59 -08:00
oss.c	m68k/mac: Fix race conditions in OSS interrupt dispatch	2018-01-16 16:52:17 +01:00
psc.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
via.c	m68k: mac: Don't call via_flush_cache() on Mac IIfx	2020-06-22 09:31:08 +02:00