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| author |   Roja Rani Yarubandi <rojay@codeaurora.org> | 2021-05-25 18:40:51 +0530 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-10 13:37:16 +0200 |
| commit | 8e0bb29446d1031fb5a581f3222aec22cd26b784 (patch) | |
| tree | 5481e9795e1274a9e15aee3572707dc51439a1a5 | |
| parent | xen-pciback: redo VF placement in the virtual topology (diff) | |
| download | wireguard-linux-8e0bb29446d1031fb5a581f3222aec22cd26b784.tar.xz wireguard-linux-8e0bb29446d1031fb5a581f3222aec22cd26b784.zip | |
i2c: qcom-geni: Suspend and resume the bus during SYSTEM_SLEEP_PM ops
commit 57648e860485de39c800a89f849fdd03c2d31d15 upstream.
Mark bus as suspended during system suspend to block the future
transfers. Implement geni_i2c_resume_noirq() to resume the bus.
Fixes: 37692de5d523 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller")
Signed-off-by: Roja Rani Yarubandi <rojay@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/i2c/busses/i2c-qcom-geni.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index d4ca00df6a5e..c73b997899af 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -685,6 +685,8 @@ static int __maybe_unused geni_i2c_suspend_noirq(struct device *dev) { struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); + i2c_mark_adapter_suspended(&gi2c->adap); + if (!gi2c->suspended) { geni_i2c_runtime_suspend(dev); pm_runtime_disable(dev); @@ -694,8 +696,16 @@ static int __maybe_unused geni_i2c_suspend_noirq(struct device *dev) return 0; } +static int __maybe_unused geni_i2c_resume_noirq(struct device *dev) +{ + struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); + + i2c_mark_adapter_resumed(&gi2c->adap); + return 0; +} + static const struct dev_pm_ops geni_i2c_pm_ops = { - SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(geni_i2c_suspend_noirq, NULL) + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(geni_i2c_suspend_noirq, geni_i2c_resume_noirq) SET_RUNTIME_PM_OPS(geni_i2c_runtime_suspend, geni_i2c_runtime_resume, NULL) }; |