linux/drivers/bus
Samuel Holland b76c5a99f4 bus: sunxi-rsb: Support atomic transfers
[ Upstream commit 077686da0e ]

When communicating with a PMIC during system poweroff (pm_power_off()),
IRQs are disabled and we are in a RCU read-side critical section, so we
cannot use wait_for_completion_io_timeout(). Instead, poll the status
register for transfer completion.

Fixes: d787dcdb9c ("bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20221114015749.28490-3-samuel@sholland.org
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-02 17:39:59 +01:00
..
fsl-mc bus: fsl-mc: fix mmio base address for child DPRCs 2021-09-18 13:40:20 +02:00
mhi bus: mhi: core: Validate channel ID when processing command completions 2021-07-28 14:35:45 +02:00
arm-cci.c
arm-integrator-lm.c
brcmstb_gisb.c
bt1-apb.c
bt1-axi.c
da8xx-mstpri.c
hisi_lpc.c bus: hisi_lpc: fix missing platform_device_put() in hisi_lpc_acpi_probe() 2022-08-21 15:15:35 +02:00
imx-weim.c
Kconfig
Makefile
mips_cdmm.c mips: cdmm: Fix refcount leak in mips_cdmm_phys_base 2022-04-08 14:40:20 +02:00
moxtet.c
mvebu-mbus.c
omap_l3_noc.c
omap_l3_noc.h
omap_l3_smx.c
omap_l3_smx.h
omap-ocp2scp.c
qcom-ebi2.c
simple-pm-bus.c Revert "drivers: bus: simple-pm-bus: Add support for probing simple bus only devices" 2022-02-05 12:37:55 +01:00
sun50i-de2.c
sunxi-rsb.c bus: sunxi-rsb: Support atomic transfers 2022-12-02 17:39:59 +01:00
tegra-aconnect.c
tegra-gmi.c
ti-pwmss.c
ti-sysc.c bus: ti-sysc: Fix warnings for unbind for serial 2022-06-14 18:32:34 +02:00
ts-nbus.c
uniphier-system-bus.c
vexpress-config.c