| Message ID | 20240102-j7200-pcie-s2r-v2-1-8e4f7d228ec2@bootlin.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add suspend to ram support for PCIe on J7200 | expand |
On Fri, Jan 26, 2024 at 4:37 PM Thomas Richard <thomas.richard@bootlin.com> wrote: > > Some IOs can be needed during suspend_noirq()/resume_noirq(). > So move suspend()/resume() to noirq. On the first glance the code is okay, but I haven't tested it on the platforms I have that use this chip. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
On Fri, Jan 26, 2024 at 3:37 PM Thomas Richard <thomas.richard@bootlin.com> wrote: > > Some IOs can be needed during suspend_noirq()/resume_noirq(). > So move suspend()/resume() to noirq. > > Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> > --- > drivers/gpio/gpio-pca953x.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c > index 00ffa168e405..6e495fc67a93 100644 > --- a/drivers/gpio/gpio-pca953x.c > +++ b/drivers/gpio/gpio-pca953x.c > @@ -1234,7 +1234,7 @@ static void pca953x_save_context(struct pca953x_chip *chip) > regcache_cache_only(chip->regmap, true); > } > > -static int pca953x_suspend(struct device *dev) > +static int pca953x_suspend_noirq(struct device *dev) > { > struct pca953x_chip *chip = dev_get_drvdata(dev); > > @@ -1248,7 +1248,7 @@ static int pca953x_suspend(struct device *dev) > return 0; > } > > -static int pca953x_resume(struct device *dev) > +static int pca953x_resume_noirq(struct device *dev) > { > struct pca953x_chip *chip = dev_get_drvdata(dev); > int ret; > @@ -1268,7 +1268,8 @@ static int pca953x_resume(struct device *dev) > return ret; > } > > -static DEFINE_SIMPLE_DEV_PM_OPS(pca953x_pm_ops, pca953x_suspend, pca953x_resume); > +static DEFINE_NOIRQ_DEV_PM_OPS(pca953x_pm_ops, > + pca953x_suspend_noirq, pca953x_resume_noirq); > > /* convenience to stop overlong match-table lines */ > #define OF_653X(__nrgpio, __int) ((void *)(__nrgpio | PCAL653X_TYPE | __int)) > > -- > 2.39.2 > Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Hi Thomas, On Fri, Jan 26, 2024 at 03:36:43PM +0100, Thomas Richard wrote: > Some IOs can be needed during suspend_noirq()/resume_noirq(). > So move suspend()/resume() to noirq. > > Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Reviewed-by: Andi Shyti <andi.shyti@kernel.org> Thanks, Andi
* Thomas Richard <thomas.richard@bootlin.com> [240126 14:37]: > Some IOs can be needed during suspend_noirq()/resume_noirq(). > So move suspend()/resume() to noirq. Hmm so what happened to the earlier i2c transfer at noirq level comments from me and Linus W here? It seems the cover letter mentions it but I don't see the related changes in this patch? Regards, Tony
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 00ffa168e405..6e495fc67a93 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -1234,7 +1234,7 @@ static void pca953x_save_context(struct pca953x_chip *chip) regcache_cache_only(chip->regmap, true); } -static int pca953x_suspend(struct device *dev) +static int pca953x_suspend_noirq(struct device *dev) { struct pca953x_chip *chip = dev_get_drvdata(dev); @@ -1248,7 +1248,7 @@ static int pca953x_suspend(struct device *dev) return 0; } -static int pca953x_resume(struct device *dev) +static int pca953x_resume_noirq(struct device *dev) { struct pca953x_chip *chip = dev_get_drvdata(dev); int ret; @@ -1268,7 +1268,8 @@ static int pca953x_resume(struct device *dev) return ret; } -static DEFINE_SIMPLE_DEV_PM_OPS(pca953x_pm_ops, pca953x_suspend, pca953x_resume); +static DEFINE_NOIRQ_DEV_PM_OPS(pca953x_pm_ops, + pca953x_suspend_noirq, pca953x_resume_noirq); /* convenience to stop overlong match-table lines */ #define OF_653X(__nrgpio, __int) ((void *)(__nrgpio | PCAL653X_TYPE | __int))
Some IOs can be needed during suspend_noirq()/resume_noirq(). So move suspend()/resume() to noirq. Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> --- drivers/gpio/gpio-pca953x.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)