diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2021-10-28 16:51:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 13:03:18 +0300 |
| commit | 6b6e7150c18becf39038245123ee07931149a105 (patch) | |
| tree | 06c1c431e900f6440a57104e991a15f86c68f9f7 /block | |
| parent | 8aa5209e54aaca8ac97211683727f7d8c2276034 (diff) | |
| download | linux-6b6e7150c18becf39038245123ee07931149a105.tar.xz | |
mfd: atmel-flexcom: Use .resume_noirq
[ Upstream commit 5d051cf94fd5834a1513aa77e542c49fd973988a ]
Flexcom IP embeds 3 other IPs: usart, i2c, spi and selects the operation
mode (usart, i2c, spi) via mode register (FLEX_MR). On i2c bus there might
be connected critical devices (like PMIC) which on suspend/resume should
be suspended/resumed at the end/beginning. i2c uses
.suspend_noirq/.resume_noirq for this kind of purposes. Align flexcom
to use .resume_noirq as it should be resumed before the embedded IPs.
Otherwise the embedded devices might behave badly.
Fixes: 7fdec11015c3 ("atmel_flexcom: Support resuming after a chip reset")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Tested-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211028135138.3481166-3-claudiu.beznea@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions