Add function of_pci_get_slot_power_limit(), which parses the
'slot-power-limit-milliwatt' DT property, returning the value in
milliwatts and in format ready for the PCIe Slot Capabilities Register.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Marek Behún <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
---
Changes in v4:
* Set 239 W when DT slot-power-limit-milliwatt is between 239 W and 250 W
* Fix returning power limit value
Changes in v3:
* Set 600 W when DT slot-power-limit-milliwatt > 600 W
Changes in v2:
* Added support for PCIe 6.0 slot power limit encodings
* Round down slot power limit value
---
drivers/pci/of.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++
drivers/pci/pci.h | 15 ++++++++++
2 files changed, 85 insertions(+)
diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index cb2e8351c2cc..6c1b81304665 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -633,3 +633,73 @@ int of_pci_get_max_link_speed(struct device_node *node)
return max_link_speed;
}
EXPORT_SYMBOL_GPL(of_pci_get_max_link_speed);
+
+/**
+ * of_pci_get_slot_power_limit - Parses the "slot-power-limit-milliwatt"
+ * property.
+ *
+ * @node: device tree node with the slot power limit information
+ * @slot_power_limit_value: pointer where the value should be stored in PCIe
+ * Slot Capabilities Register format
+ * @slot_power_limit_scale: pointer where the scale should be stored in PCIe
+ * Slot Capabilities Register format
+ *
+ * Returns the slot power limit in milliwatts and if @slot_power_limit_value
+ * and @slot_power_limit_scale pointers are non-NULL, fills in the value and
+ * scale in format used by PCIe Slot Capabilities Register.
+ *
+ * If the property is not found or is invalid, returns 0.
+ */
+u32 of_pci_get_slot_power_limit(struct device_node *node,
+ u8 *slot_power_limit_value,
+ u8 *slot_power_limit_scale)
+{
+ u32 slot_power_limit_mw;
+ u8 value, scale;
+
+ if (of_property_read_u32(node, "slot-power-limit-milliwatt",
+ &slot_power_limit_mw))
+ slot_power_limit_mw = 0;
+
+ /* Calculate Slot Power Limit Value and Slot Power Limit Scale */
+ if (slot_power_limit_mw == 0) {
+ value = 0x00;
+ scale = 0;
+ } else if (slot_power_limit_mw <= 255) {
+ value = slot_power_limit_mw;
+ scale = 3;
+ } else if (slot_power_limit_mw <= 255*10) {
+ value = slot_power_limit_mw / 10;
+ scale = 2;
+ slot_power_limit_mw = slot_power_limit_mw / 10 * 10;
+ } else if (slot_power_limit_mw <= 255*100) {
+ value = slot_power_limit_mw / 100;
+ scale = 1;
+ slot_power_limit_mw = slot_power_limit_mw / 100 * 100;
+ } else if (slot_power_limit_mw <= 239*1000) {
+ value = slot_power_limit_mw / 1000;
+ scale = 0;
+ slot_power_limit_mw = slot_power_limit_mw / 1000 * 1000;
+ } else if (slot_power_limit_mw < 250*1000) {
+ value = 0xEF;
+ scale = 0;
+ slot_power_limit_mw = 239*1000;
+ } else if (slot_power_limit_mw <= 600*1000) {
+ value = 0xF0 + (slot_power_limit_mw / 1000 - 250) / 25;
+ scale = 0;
+ slot_power_limit_mw = slot_power_limit_mw / (1000*25) * (1000*25);
+ } else {
+ value = 0xFE;
+ scale = 0;
+ slot_power_limit_mw = 600*1000;
+ }
+
+ if (slot_power_limit_value)
+ *slot_power_limit_value = value;
+
+ if (slot_power_limit_scale)
+ *slot_power_limit_scale = scale;
+
+ return slot_power_limit_mw;
+}
+EXPORT_SYMBOL_GPL(of_pci_get_slot_power_limit);
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 3d60cabde1a1..e10cdec6c56e 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -627,6 +627,9 @@ struct device_node;
int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
int of_get_pci_domain_nr(struct device_node *node);
int of_pci_get_max_link_speed(struct device_node *node);
+u32 of_pci_get_slot_power_limit(struct device_node *node,
+ u8 *slot_power_limit_value,
+ u8 *slot_power_limit_scale);
void pci_set_of_node(struct pci_dev *dev);
void pci_release_of_node(struct pci_dev *dev);
void pci_set_bus_of_node(struct pci_bus *bus);
@@ -653,6 +656,18 @@ of_pci_get_max_link_speed(struct device_node *node)
return -EINVAL;
}
+static inline u32
+of_pci_get_slot_power_limit(struct device_node *node,
+ u8 *slot_power_limit_value,
+ u8 *slot_power_limit_scale)
+{
+ if (slot_power_limit_value)
+ *slot_power_limit_value = 0;
+ if (slot_power_limit_scale)
+ *slot_power_limit_scale = 0;
+ return 0;
+}
+
static inline void pci_set_of_node(struct pci_dev *dev) { }
static inline void pci_release_of_node(struct pci_dev *dev) { }
static inline void pci_set_bus_of_node(struct pci_bus *bus) { }
--
2.20.1
On Tue, Apr 12, 2022 at 11:49:45AM +0200, Pali Roh?r wrote:
> Add function of_pci_get_slot_power_limit(), which parses the
> 'slot-power-limit-milliwatt' DT property, returning the value in
> milliwatts and in format ready for the PCIe Slot Capabilities Register.
>
> Signed-off-by: Pali Roh?r <[email protected]>
> Signed-off-by: Marek Beh?n <[email protected]>
> Reviewed-by: Rob Herring <[email protected]>
Looks good to me! Thank you!
Reviewed-by: Bjorn Helgaas <[email protected]>
> ---
> Changes in v4:
> * Set 239 W when DT slot-power-limit-milliwatt is between 239 W and 250 W
> * Fix returning power limit value
> Changes in v3:
> * Set 600 W when DT slot-power-limit-milliwatt > 600 W
> Changes in v2:
> * Added support for PCIe 6.0 slot power limit encodings
> * Round down slot power limit value
> ---
> drivers/pci/of.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++
> drivers/pci/pci.h | 15 ++++++++++
> 2 files changed, 85 insertions(+)
>
> diff --git a/drivers/pci/of.c b/drivers/pci/of.c
> index cb2e8351c2cc..6c1b81304665 100644
> --- a/drivers/pci/of.c
> +++ b/drivers/pci/of.c
> @@ -633,3 +633,73 @@ int of_pci_get_max_link_speed(struct device_node *node)
> return max_link_speed;
> }
> EXPORT_SYMBOL_GPL(of_pci_get_max_link_speed);
> +
> +/**
> + * of_pci_get_slot_power_limit - Parses the "slot-power-limit-milliwatt"
> + * property.
> + *
> + * @node: device tree node with the slot power limit information
> + * @slot_power_limit_value: pointer where the value should be stored in PCIe
> + * Slot Capabilities Register format
> + * @slot_power_limit_scale: pointer where the scale should be stored in PCIe
> + * Slot Capabilities Register format
> + *
> + * Returns the slot power limit in milliwatts and if @slot_power_limit_value
> + * and @slot_power_limit_scale pointers are non-NULL, fills in the value and
> + * scale in format used by PCIe Slot Capabilities Register.
> + *
> + * If the property is not found or is invalid, returns 0.
> + */
> +u32 of_pci_get_slot_power_limit(struct device_node *node,
> + u8 *slot_power_limit_value,
> + u8 *slot_power_limit_scale)
> +{
> + u32 slot_power_limit_mw;
> + u8 value, scale;
> +
> + if (of_property_read_u32(node, "slot-power-limit-milliwatt",
> + &slot_power_limit_mw))
> + slot_power_limit_mw = 0;
> +
> + /* Calculate Slot Power Limit Value and Slot Power Limit Scale */
> + if (slot_power_limit_mw == 0) {
> + value = 0x00;
> + scale = 0;
> + } else if (slot_power_limit_mw <= 255) {
> + value = slot_power_limit_mw;
> + scale = 3;
> + } else if (slot_power_limit_mw <= 255*10) {
> + value = slot_power_limit_mw / 10;
> + scale = 2;
> + slot_power_limit_mw = slot_power_limit_mw / 10 * 10;
> + } else if (slot_power_limit_mw <= 255*100) {
> + value = slot_power_limit_mw / 100;
> + scale = 1;
> + slot_power_limit_mw = slot_power_limit_mw / 100 * 100;
> + } else if (slot_power_limit_mw <= 239*1000) {
> + value = slot_power_limit_mw / 1000;
> + scale = 0;
> + slot_power_limit_mw = slot_power_limit_mw / 1000 * 1000;
> + } else if (slot_power_limit_mw < 250*1000) {
> + value = 0xEF;
> + scale = 0;
> + slot_power_limit_mw = 239*1000;
> + } else if (slot_power_limit_mw <= 600*1000) {
> + value = 0xF0 + (slot_power_limit_mw / 1000 - 250) / 25;
> + scale = 0;
> + slot_power_limit_mw = slot_power_limit_mw / (1000*25) * (1000*25);
> + } else {
> + value = 0xFE;
> + scale = 0;
> + slot_power_limit_mw = 600*1000;
> + }
> +
> + if (slot_power_limit_value)
> + *slot_power_limit_value = value;
> +
> + if (slot_power_limit_scale)
> + *slot_power_limit_scale = scale;
> +
> + return slot_power_limit_mw;
> +}
> +EXPORT_SYMBOL_GPL(of_pci_get_slot_power_limit);
> diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
> index 3d60cabde1a1..e10cdec6c56e 100644
> --- a/drivers/pci/pci.h
> +++ b/drivers/pci/pci.h
> @@ -627,6 +627,9 @@ struct device_node;
> int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
> int of_get_pci_domain_nr(struct device_node *node);
> int of_pci_get_max_link_speed(struct device_node *node);
> +u32 of_pci_get_slot_power_limit(struct device_node *node,
> + u8 *slot_power_limit_value,
> + u8 *slot_power_limit_scale);
> void pci_set_of_node(struct pci_dev *dev);
> void pci_release_of_node(struct pci_dev *dev);
> void pci_set_bus_of_node(struct pci_bus *bus);
> @@ -653,6 +656,18 @@ of_pci_get_max_link_speed(struct device_node *node)
> return -EINVAL;
> }
>
> +static inline u32
> +of_pci_get_slot_power_limit(struct device_node *node,
> + u8 *slot_power_limit_value,
> + u8 *slot_power_limit_scale)
> +{
> + if (slot_power_limit_value)
> + *slot_power_limit_value = 0;
> + if (slot_power_limit_scale)
> + *slot_power_limit_scale = 0;
> + return 0;
> +}
> +
> static inline void pci_set_of_node(struct pci_dev *dev) { }
> static inline void pci_release_of_node(struct pci_dev *dev) { }
> static inline void pci_set_bus_of_node(struct pci_bus *bus) { }
> --
> 2.20.1
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
On Wednesday 13 April 2022 15:24:33 Bjorn Helgaas wrote:
> On Tue, Apr 12, 2022 at 11:49:45AM +0200, Pali Rohár wrote:
> > Add function of_pci_get_slot_power_limit(), which parses the
> > 'slot-power-limit-milliwatt' DT property, returning the value in
> > milliwatts and in format ready for the PCIe Slot Capabilities Register.
> >
> > Signed-off-by: Pali Rohár <[email protected]>
> > Signed-off-by: Marek Behún <[email protected]>
> > Reviewed-by: Rob Herring <[email protected]>
>
> Looks good to me! Thank you!
>
> Reviewed-by: Bjorn Helgaas <[email protected]>
Perfect!
Lorenzo, is this patch series OK now for merging?
> > ---
> > Changes in v4:
> > * Set 239 W when DT slot-power-limit-milliwatt is between 239 W and 250 W
> > * Fix returning power limit value
> > Changes in v3:
> > * Set 600 W when DT slot-power-limit-milliwatt > 600 W
> > Changes in v2:
> > * Added support for PCIe 6.0 slot power limit encodings
> > * Round down slot power limit value
> > ---
> > drivers/pci/of.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++
> > drivers/pci/pci.h | 15 ++++++++++
> > 2 files changed, 85 insertions(+)
> >
> > diff --git a/drivers/pci/of.c b/drivers/pci/of.c
> > index cb2e8351c2cc..6c1b81304665 100644
> > --- a/drivers/pci/of.c
> > +++ b/drivers/pci/of.c
> > @@ -633,3 +633,73 @@ int of_pci_get_max_link_speed(struct device_node *node)
> > return max_link_speed;
> > }
> > EXPORT_SYMBOL_GPL(of_pci_get_max_link_speed);
> > +
> > +/**
> > + * of_pci_get_slot_power_limit - Parses the "slot-power-limit-milliwatt"
> > + * property.
> > + *
> > + * @node: device tree node with the slot power limit information
> > + * @slot_power_limit_value: pointer where the value should be stored in PCIe
> > + * Slot Capabilities Register format
> > + * @slot_power_limit_scale: pointer where the scale should be stored in PCIe
> > + * Slot Capabilities Register format
> > + *
> > + * Returns the slot power limit in milliwatts and if @slot_power_limit_value
> > + * and @slot_power_limit_scale pointers are non-NULL, fills in the value and
> > + * scale in format used by PCIe Slot Capabilities Register.
> > + *
> > + * If the property is not found or is invalid, returns 0.
> > + */
> > +u32 of_pci_get_slot_power_limit(struct device_node *node,
> > + u8 *slot_power_limit_value,
> > + u8 *slot_power_limit_scale)
> > +{
> > + u32 slot_power_limit_mw;
> > + u8 value, scale;
> > +
> > + if (of_property_read_u32(node, "slot-power-limit-milliwatt",
> > + &slot_power_limit_mw))
> > + slot_power_limit_mw = 0;
> > +
> > + /* Calculate Slot Power Limit Value and Slot Power Limit Scale */
> > + if (slot_power_limit_mw == 0) {
> > + value = 0x00;
> > + scale = 0;
> > + } else if (slot_power_limit_mw <= 255) {
> > + value = slot_power_limit_mw;
> > + scale = 3;
> > + } else if (slot_power_limit_mw <= 255*10) {
> > + value = slot_power_limit_mw / 10;
> > + scale = 2;
> > + slot_power_limit_mw = slot_power_limit_mw / 10 * 10;
> > + } else if (slot_power_limit_mw <= 255*100) {
> > + value = slot_power_limit_mw / 100;
> > + scale = 1;
> > + slot_power_limit_mw = slot_power_limit_mw / 100 * 100;
> > + } else if (slot_power_limit_mw <= 239*1000) {
> > + value = slot_power_limit_mw / 1000;
> > + scale = 0;
> > + slot_power_limit_mw = slot_power_limit_mw / 1000 * 1000;
> > + } else if (slot_power_limit_mw < 250*1000) {
> > + value = 0xEF;
> > + scale = 0;
> > + slot_power_limit_mw = 239*1000;
> > + } else if (slot_power_limit_mw <= 600*1000) {
> > + value = 0xF0 + (slot_power_limit_mw / 1000 - 250) / 25;
> > + scale = 0;
> > + slot_power_limit_mw = slot_power_limit_mw / (1000*25) * (1000*25);
> > + } else {
> > + value = 0xFE;
> > + scale = 0;
> > + slot_power_limit_mw = 600*1000;
> > + }
> > +
> > + if (slot_power_limit_value)
> > + *slot_power_limit_value = value;
> > +
> > + if (slot_power_limit_scale)
> > + *slot_power_limit_scale = scale;
> > +
> > + return slot_power_limit_mw;
> > +}
> > +EXPORT_SYMBOL_GPL(of_pci_get_slot_power_limit);
> > diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
> > index 3d60cabde1a1..e10cdec6c56e 100644
> > --- a/drivers/pci/pci.h
> > +++ b/drivers/pci/pci.h
> > @@ -627,6 +627,9 @@ struct device_node;
> > int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
> > int of_get_pci_domain_nr(struct device_node *node);
> > int of_pci_get_max_link_speed(struct device_node *node);
> > +u32 of_pci_get_slot_power_limit(struct device_node *node,
> > + u8 *slot_power_limit_value,
> > + u8 *slot_power_limit_scale);
> > void pci_set_of_node(struct pci_dev *dev);
> > void pci_release_of_node(struct pci_dev *dev);
> > void pci_set_bus_of_node(struct pci_bus *bus);
> > @@ -653,6 +656,18 @@ of_pci_get_max_link_speed(struct device_node *node)
> > return -EINVAL;
> > }
> >
> > +static inline u32
> > +of_pci_get_slot_power_limit(struct device_node *node,
> > + u8 *slot_power_limit_value,
> > + u8 *slot_power_limit_scale)
> > +{
> > + if (slot_power_limit_value)
> > + *slot_power_limit_value = 0;
> > + if (slot_power_limit_scale)
> > + *slot_power_limit_scale = 0;
> > + return 0;
> > +}
> > +
> > static inline void pci_set_of_node(struct pci_dev *dev) { }
> > static inline void pci_release_of_node(struct pci_dev *dev) { }
> > static inline void pci_set_bus_of_node(struct pci_bus *bus) { }
> > --
> > 2.20.1
> >
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > [email protected]
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
On Thu, Apr 21, 2022 at 10:14:13PM +0200, Pali Roh?r wrote:
> On Wednesday 13 April 2022 15:24:33 Bjorn Helgaas wrote:
> > On Tue, Apr 12, 2022 at 11:49:45AM +0200, Pali Roh?r wrote:
> > > Add function of_pci_get_slot_power_limit(), which parses the
> > > 'slot-power-limit-milliwatt' DT property, returning the value in
> > > milliwatts and in format ready for the PCIe Slot Capabilities Register.
> > >
> > > Signed-off-by: Pali Roh?r <[email protected]>
> > > Signed-off-by: Marek Beh?n <[email protected]>
> > > Reviewed-by: Rob Herring <[email protected]>
> >
> > Looks good to me! Thank you!
> >
> > Reviewed-by: Bjorn Helgaas <[email protected]>
>
> Perfect!
>
> Lorenzo, is this patch series OK now for merging?
Yes it is. I have a related question (ie how to check whether a binding
has been accepted into the DT schema) but I will sort that out with
Rob.
Thanks,
Lorenzo
> > > ---
> > > Changes in v4:
> > > * Set 239 W when DT slot-power-limit-milliwatt is between 239 W and 250 W
> > > * Fix returning power limit value
> > > Changes in v3:
> > > * Set 600 W when DT slot-power-limit-milliwatt > 600 W
> > > Changes in v2:
> > > * Added support for PCIe 6.0 slot power limit encodings
> > > * Round down slot power limit value
> > > ---
> > > drivers/pci/of.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++
> > > drivers/pci/pci.h | 15 ++++++++++
> > > 2 files changed, 85 insertions(+)
> > >
> > > diff --git a/drivers/pci/of.c b/drivers/pci/of.c
> > > index cb2e8351c2cc..6c1b81304665 100644
> > > --- a/drivers/pci/of.c
> > > +++ b/drivers/pci/of.c
> > > @@ -633,3 +633,73 @@ int of_pci_get_max_link_speed(struct device_node *node)
> > > return max_link_speed;
> > > }
> > > EXPORT_SYMBOL_GPL(of_pci_get_max_link_speed);
> > > +
> > > +/**
> > > + * of_pci_get_slot_power_limit - Parses the "slot-power-limit-milliwatt"
> > > + * property.
> > > + *
> > > + * @node: device tree node with the slot power limit information
> > > + * @slot_power_limit_value: pointer where the value should be stored in PCIe
> > > + * Slot Capabilities Register format
> > > + * @slot_power_limit_scale: pointer where the scale should be stored in PCIe
> > > + * Slot Capabilities Register format
> > > + *
> > > + * Returns the slot power limit in milliwatts and if @slot_power_limit_value
> > > + * and @slot_power_limit_scale pointers are non-NULL, fills in the value and
> > > + * scale in format used by PCIe Slot Capabilities Register.
> > > + *
> > > + * If the property is not found or is invalid, returns 0.
> > > + */
> > > +u32 of_pci_get_slot_power_limit(struct device_node *node,
> > > + u8 *slot_power_limit_value,
> > > + u8 *slot_power_limit_scale)
> > > +{
> > > + u32 slot_power_limit_mw;
> > > + u8 value, scale;
> > > +
> > > + if (of_property_read_u32(node, "slot-power-limit-milliwatt",
> > > + &slot_power_limit_mw))
> > > + slot_power_limit_mw = 0;
> > > +
> > > + /* Calculate Slot Power Limit Value and Slot Power Limit Scale */
> > > + if (slot_power_limit_mw == 0) {
> > > + value = 0x00;
> > > + scale = 0;
> > > + } else if (slot_power_limit_mw <= 255) {
> > > + value = slot_power_limit_mw;
> > > + scale = 3;
> > > + } else if (slot_power_limit_mw <= 255*10) {
> > > + value = slot_power_limit_mw / 10;
> > > + scale = 2;
> > > + slot_power_limit_mw = slot_power_limit_mw / 10 * 10;
> > > + } else if (slot_power_limit_mw <= 255*100) {
> > > + value = slot_power_limit_mw / 100;
> > > + scale = 1;
> > > + slot_power_limit_mw = slot_power_limit_mw / 100 * 100;
> > > + } else if (slot_power_limit_mw <= 239*1000) {
> > > + value = slot_power_limit_mw / 1000;
> > > + scale = 0;
> > > + slot_power_limit_mw = slot_power_limit_mw / 1000 * 1000;
> > > + } else if (slot_power_limit_mw < 250*1000) {
> > > + value = 0xEF;
> > > + scale = 0;
> > > + slot_power_limit_mw = 239*1000;
> > > + } else if (slot_power_limit_mw <= 600*1000) {
> > > + value = 0xF0 + (slot_power_limit_mw / 1000 - 250) / 25;
> > > + scale = 0;
> > > + slot_power_limit_mw = slot_power_limit_mw / (1000*25) * (1000*25);
> > > + } else {
> > > + value = 0xFE;
> > > + scale = 0;
> > > + slot_power_limit_mw = 600*1000;
> > > + }
> > > +
> > > + if (slot_power_limit_value)
> > > + *slot_power_limit_value = value;
> > > +
> > > + if (slot_power_limit_scale)
> > > + *slot_power_limit_scale = scale;
> > > +
> > > + return slot_power_limit_mw;
> > > +}
> > > +EXPORT_SYMBOL_GPL(of_pci_get_slot_power_limit);
> > > diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
> > > index 3d60cabde1a1..e10cdec6c56e 100644
> > > --- a/drivers/pci/pci.h
> > > +++ b/drivers/pci/pci.h
> > > @@ -627,6 +627,9 @@ struct device_node;
> > > int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
> > > int of_get_pci_domain_nr(struct device_node *node);
> > > int of_pci_get_max_link_speed(struct device_node *node);
> > > +u32 of_pci_get_slot_power_limit(struct device_node *node,
> > > + u8 *slot_power_limit_value,
> > > + u8 *slot_power_limit_scale);
> > > void pci_set_of_node(struct pci_dev *dev);
> > > void pci_release_of_node(struct pci_dev *dev);
> > > void pci_set_bus_of_node(struct pci_bus *bus);
> > > @@ -653,6 +656,18 @@ of_pci_get_max_link_speed(struct device_node *node)
> > > return -EINVAL;
> > > }
> > >
> > > +static inline u32
> > > +of_pci_get_slot_power_limit(struct device_node *node,
> > > + u8 *slot_power_limit_value,
> > > + u8 *slot_power_limit_scale)
> > > +{
> > > + if (slot_power_limit_value)
> > > + *slot_power_limit_value = 0;
> > > + if (slot_power_limit_scale)
> > > + *slot_power_limit_scale = 0;
> > > + return 0;
> > > +}
> > > +
> > > static inline void pci_set_of_node(struct pci_dev *dev) { }
> > > static inline void pci_release_of_node(struct pci_dev *dev) { }
> > > static inline void pci_set_bus_of_node(struct pci_bus *bus) { }
> > > --
> > > 2.20.1
> > >
> > >
> > > _______________________________________________
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> > > [email protected]
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