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| author | Haibo Chen <haibo.chen@nxp.com> | 2025-05-21 11:31:34 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2025-06-24 12:43:21 +0200 |
| commit | 031d9e30d569ca15ca32f64357c83eee6488e09d (patch) | |
| tree | 0367307a55c40f2555de68177aea7f8e1e2b4510 /tools/perf/scripts/python/stackcollapse.py | |
| parent | Linux 6.16-rc3 (diff) | |
| download | linux-031d9e30d569ca15ca32f64357c83eee6488e09d.tar.gz linux-031d9e30d569ca15ca32f64357c83eee6488e09d.zip | |
mmc: sdhci-esdhc-imx: Don't change pinctrl in suspend if wakeup source
The pinctrl sleep state may config the pin mux to certain function to save
power in system suspend. Unfortunately this doesn't work if usdhc is used
as a wakeup source, like waking up on SDIO irqs or card-detect irqs. In
these cases, we need pin mux to be configured to usdhc function pad.
The issue is found on imx93-11x11-evk board, where WiFI over SDIO with
in-band irqs fails to wakeup the system, because the DATA[1] pin has been
set to GPIO function.
To fix the problem, don't change the pinctrl state in suspend if there is a
system wakeup enabled.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Luke Wang <ziniu.wang_1@nxp.com>
Link: https://lore.kernel.org/r/20250521033134.112671-1-ziniu.wang_1@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions