[PATCH v4 3/9] pci: pwrctrl: rename pci-pwrctrl-slot as generic

Neil Armstrong posted 9 patches 1 month, 2 weeks ago
There is a newer version of this series
[PATCH v4 3/9] pci: pwrctrl: rename pci-pwrctrl-slot as generic
Posted by Neil Armstrong 1 month, 2 weeks ago
The driver is pretty generic and would fit for either
PCI Slots or endpoints connected to PCI ports, so rename
the driver and module as pci-pwrctrl-generic.

Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 drivers/pci/pwrctrl/Kconfig   | 13 ++++---
 drivers/pci/pwrctrl/Makefile  |  4 +-
 drivers/pci/pwrctrl/generic.c | 91 +++++++++++++++++++++++++++++++++++++++++++
 drivers/pci/pwrctrl/slot.c    | 91 -------------------------------------------
 4 files changed, 100 insertions(+), 99 deletions(-)

diff --git a/drivers/pci/pwrctrl/Kconfig b/drivers/pci/pwrctrl/Kconfig
index e0f999f299bb..0ba095729694 100644
--- a/drivers/pci/pwrctrl/Kconfig
+++ b/drivers/pci/pwrctrl/Kconfig
@@ -11,16 +11,17 @@ config PCI_PWRCTRL_PWRSEQ
 	select POWER_SEQUENCING
 	select PCI_PWRCTRL
 
-config PCI_PWRCTRL_SLOT
-	tristate "PCI Power Control driver for PCI slots"
+config PCI_PWRCTRL_GENERIC
+	tristate "Generic PCI Power Control driver for PCI slots and endpoints"
 	select PCI_PWRCTRL
 	help
-	  Say Y here to enable the PCI Power Control driver to control the power
-	  state of PCI slots.
+	  Say Y here to enable the generic PCI Power Control driver to control
+	  the power state of PCI slots and endpoints.
 
 	  This is a generic driver that controls the power state of different
-	  PCI slots. The voltage regulators powering the rails of the PCI slots
-	  are expected to be defined in the devicetree node of the PCI bridge.
+	  PCI slots and endpoints. The voltage regulators powering the rails
+	  of the PCI slots or endpoints are expected to be defined in the
+	  devicetree node of the PCI bridge.
 
 config PCI_PWRCTRL_TC9563
 	tristate "PCI Power Control driver for TC9563 PCIe switch"
diff --git a/drivers/pci/pwrctrl/Makefile b/drivers/pci/pwrctrl/Makefile
index 13b02282106c..f6bb4fb9a410 100644
--- a/drivers/pci/pwrctrl/Makefile
+++ b/drivers/pci/pwrctrl/Makefile
@@ -5,7 +5,7 @@ pci-pwrctrl-core-y			:= core.o
 
 obj-$(CONFIG_PCI_PWRCTRL_PWRSEQ)	+= pci-pwrctrl-pwrseq.o
 
-obj-$(CONFIG_PCI_PWRCTRL_SLOT)		+= pci-pwrctrl-slot.o
-pci-pwrctrl-slot-y			:= slot.o
+obj-$(CONFIG_PCI_PWRCTRL_GENERIC)	+= pci-pwrctrl-generic.o
+pci-pwrctrl-generic-y			:= generic.o
 
 obj-$(CONFIG_PCI_PWRCTRL_TC9563)	+= pci-pwrctrl-tc9563.o
diff --git a/drivers/pci/pwrctrl/generic.c b/drivers/pci/pwrctrl/generic.c
new file mode 100644
index 000000000000..a5b7b7965f46
--- /dev/null
+++ b/drivers/pci/pwrctrl/generic.c
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2024 Linaro Ltd.
+ * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/pci-pwrctrl.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+
+struct pci_pwrctrl_generic_data {
+	struct pci_pwrctrl ctx;
+	struct regulator_bulk_data *supplies;
+	int num_supplies;
+};
+
+static void devm_pci_pwrctrl_generic_power_off(void *data)
+{
+	struct pci_pwrctrl_generic_data *generic = data;
+
+	regulator_bulk_disable(generic->num_supplies, generic->supplies);
+	regulator_bulk_free(generic->num_supplies, generic->supplies);
+}
+
+static int pci_pwrctrl_generic_probe(struct platform_device *pdev)
+{
+	struct pci_pwrctrl_generic_data *generic;
+	struct device *dev = &pdev->dev;
+	struct clk *clk;
+	int ret;
+
+	generic = devm_kzalloc(dev, sizeof(*generic), GFP_KERNEL);
+	if (!generic)
+		return -ENOMEM;
+
+	ret = of_regulator_bulk_get_all(dev, dev_of_node(dev),
+					&generic->supplies);
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "Failed to get regulators\n");
+
+	generic->num_supplies = ret;
+	ret = regulator_bulk_enable(generic->num_supplies, generic->supplies);
+	if (ret < 0) {
+		regulator_bulk_free(generic->num_supplies, generic->supplies);
+		return dev_err_probe(dev, ret, "Failed to enable regulators\n");
+	}
+
+	ret = devm_add_action_or_reset(dev, devm_pci_pwrctrl_generic_power_off,
+				       generic);
+	if (ret)
+		return ret;
+
+	clk = devm_clk_get_optional_enabled(dev, NULL);
+	if (IS_ERR(clk))
+		return dev_err_probe(dev, PTR_ERR(clk),
+				     "Failed to enable clock\n");
+
+	pci_pwrctrl_init(&generic->ctx, dev);
+
+	ret = devm_pci_pwrctrl_device_set_ready(dev, &generic->ctx);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to register generic pwrctrl driver\n");
+
+	return 0;
+}
+
+static const struct of_device_id pci_pwrctrl_generic_of_match[] = {
+	{
+		.compatible = "pciclass,0604",
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(of, pci_pwrctrl_generic_of_match);
+
+static struct platform_driver pci_pwrctrl_generic_driver = {
+	.driver = {
+		.name = "pci-pwrctrl-generic",
+		.of_match_table = pci_pwrctrl_generic_of_match,
+	},
+	.probe = pci_pwrctrl_generic_probe,
+};
+module_platform_driver(pci_pwrctrl_generic_driver);
+
+MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
+MODULE_DESCRIPTION("Generic PCI Power Control driver for PCI Slots");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pci/pwrctrl/slot.c b/drivers/pci/pwrctrl/slot.c
deleted file mode 100644
index 08e53243cdbd..000000000000
--- a/drivers/pci/pwrctrl/slot.c
+++ /dev/null
@@ -1,91 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2024 Linaro Ltd.
- * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
- */
-
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/mod_devicetable.h>
-#include <linux/module.h>
-#include <linux/pci-pwrctrl.h>
-#include <linux/platform_device.h>
-#include <linux/regulator/consumer.h>
-#include <linux/slab.h>
-
-struct pci_pwrctrl_slot_data {
-	struct pci_pwrctrl ctx;
-	struct regulator_bulk_data *supplies;
-	int num_supplies;
-};
-
-static void devm_pci_pwrctrl_slot_power_off(void *data)
-{
-	struct pci_pwrctrl_slot_data *slot = data;
-
-	regulator_bulk_disable(slot->num_supplies, slot->supplies);
-	regulator_bulk_free(slot->num_supplies, slot->supplies);
-}
-
-static int pci_pwrctrl_slot_probe(struct platform_device *pdev)
-{
-	struct pci_pwrctrl_slot_data *slot;
-	struct device *dev = &pdev->dev;
-	struct clk *clk;
-	int ret;
-
-	slot = devm_kzalloc(dev, sizeof(*slot), GFP_KERNEL);
-	if (!slot)
-		return -ENOMEM;
-
-	ret = of_regulator_bulk_get_all(dev, dev_of_node(dev),
-					&slot->supplies);
-	if (ret < 0)
-		return dev_err_probe(dev, ret, "Failed to get slot regulators\n");
-
-	slot->num_supplies = ret;
-	ret = regulator_bulk_enable(slot->num_supplies, slot->supplies);
-	if (ret < 0) {
-		regulator_bulk_free(slot->num_supplies, slot->supplies);
-		return dev_err_probe(dev, ret, "Failed to enable slot regulators\n");
-	}
-
-	ret = devm_add_action_or_reset(dev, devm_pci_pwrctrl_slot_power_off,
-				       slot);
-	if (ret)
-		return ret;
-
-	clk = devm_clk_get_optional_enabled(dev, NULL);
-	if (IS_ERR(clk))
-		return dev_err_probe(dev, PTR_ERR(clk),
-				     "Failed to enable slot clock\n");
-
-	pci_pwrctrl_init(&slot->ctx, dev);
-
-	ret = devm_pci_pwrctrl_device_set_ready(dev, &slot->ctx);
-	if (ret)
-		return dev_err_probe(dev, ret, "Failed to register pwrctrl driver\n");
-
-	return 0;
-}
-
-static const struct of_device_id pci_pwrctrl_slot_of_match[] = {
-	{
-		.compatible = "pciclass,0604",
-	},
-	{ }
-};
-MODULE_DEVICE_TABLE(of, pci_pwrctrl_slot_of_match);
-
-static struct platform_driver pci_pwrctrl_slot_driver = {
-	.driver = {
-		.name = "pci-pwrctrl-slot",
-		.of_match_table = pci_pwrctrl_slot_of_match,
-	},
-	.probe = pci_pwrctrl_slot_probe,
-};
-module_platform_driver(pci_pwrctrl_slot_driver);
-
-MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
-MODULE_DESCRIPTION("Generic PCI Power Control driver for PCI Slots");
-MODULE_LICENSE("GPL");

-- 
2.34.1
Re: [PATCH v4 3/9] pci: pwrctrl: rename pci-pwrctrl-slot as generic
Posted by Manivannan Sadhasivam 1 month, 2 weeks ago
On Mon, Feb 16, 2026 at 03:21:47PM +0100, Neil Armstrong wrote:
> The driver is pretty generic and would fit for either
> PCI Slots or endpoints connected to PCI ports, so rename
> the driver and module as pci-pwrctrl-generic.
> 
> Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  drivers/pci/pwrctrl/Kconfig   | 13 ++++---
>  drivers/pci/pwrctrl/Makefile  |  4 +-
>  drivers/pci/pwrctrl/generic.c | 91 +++++++++++++++++++++++++++++++++++++++++++
>  drivers/pci/pwrctrl/slot.c    | 91 -------------------------------------------
>  4 files changed, 100 insertions(+), 99 deletions(-)
> 
> diff --git a/drivers/pci/pwrctrl/Kconfig b/drivers/pci/pwrctrl/Kconfig
> index e0f999f299bb..0ba095729694 100644
> --- a/drivers/pci/pwrctrl/Kconfig
> +++ b/drivers/pci/pwrctrl/Kconfig
> @@ -11,16 +11,17 @@ config PCI_PWRCTRL_PWRSEQ
>  	select POWER_SEQUENCING
>  	select PCI_PWRCTRL
>  
> -config PCI_PWRCTRL_SLOT
> -	tristate "PCI Power Control driver for PCI slots"

This symbol is selected by a few controller drivers also in:
drivers/pci/controller/dwc/Kconfig

> +config PCI_PWRCTRL_GENERIC
> +	tristate "Generic PCI Power Control driver for PCI slots and endpoints"
>  	select PCI_PWRCTRL
>  	help
> -	  Say Y here to enable the PCI Power Control driver to control the power
> -	  state of PCI slots.
> +	  Say Y here to enable the generic PCI Power Control driver to control
> +	  the power state of PCI slots and endpoints.
>  
>  	  This is a generic driver that controls the power state of different
> -	  PCI slots. The voltage regulators powering the rails of the PCI slots
> -	  are expected to be defined in the devicetree node of the PCI bridge.
> +	  PCI slots and endpoints. The voltage regulators powering the rails
> +	  of the PCI slots or endpoints are expected to be defined in the
> +	  devicetree node of the PCI bridge.
>  
>  config PCI_PWRCTRL_TC9563
>  	tristate "PCI Power Control driver for TC9563 PCIe switch"
> diff --git a/drivers/pci/pwrctrl/Makefile b/drivers/pci/pwrctrl/Makefile
> index 13b02282106c..f6bb4fb9a410 100644
> --- a/drivers/pci/pwrctrl/Makefile
> +++ b/drivers/pci/pwrctrl/Makefile
> @@ -5,7 +5,7 @@ pci-pwrctrl-core-y			:= core.o
>  
>  obj-$(CONFIG_PCI_PWRCTRL_PWRSEQ)	+= pci-pwrctrl-pwrseq.o
>  
> -obj-$(CONFIG_PCI_PWRCTRL_SLOT)		+= pci-pwrctrl-slot.o
> -pci-pwrctrl-slot-y			:= slot.o
> +obj-$(CONFIG_PCI_PWRCTRL_GENERIC)	+= pci-pwrctrl-generic.o
> +pci-pwrctrl-generic-y			:= generic.o
>  
>  obj-$(CONFIG_PCI_PWRCTRL_TC9563)	+= pci-pwrctrl-tc9563.o
> diff --git a/drivers/pci/pwrctrl/generic.c b/drivers/pci/pwrctrl/generic.c
> new file mode 100644
> index 000000000000..a5b7b7965f46
> --- /dev/null
> +++ b/drivers/pci/pwrctrl/generic.c
> @@ -0,0 +1,91 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (C) 2024 Linaro Ltd.
> + * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/device.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/module.h>
> +#include <linux/pci-pwrctrl.h>
> +#include <linux/platform_device.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/slab.h>
> +
> +struct pci_pwrctrl_generic_data {

Ah, just realised that Bjorn renamed these structures and helpers in
https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/commit/drivers/pci/pwrctrl/slot.c?h=next&id=e40d16e6c23994b28894179b87f9747edd63062a

So this needs some adapting...

- Mani

> +	struct pci_pwrctrl ctx;
> +	struct regulator_bulk_data *supplies;
> +	int num_supplies;
> +};
> +
> +static void devm_pci_pwrctrl_generic_power_off(void *data)
> +{
> +	struct pci_pwrctrl_generic_data *generic = data;
> +
> +	regulator_bulk_disable(generic->num_supplies, generic->supplies);
> +	regulator_bulk_free(generic->num_supplies, generic->supplies);
> +}
> +
> +static int pci_pwrctrl_generic_probe(struct platform_device *pdev)
> +{
> +	struct pci_pwrctrl_generic_data *generic;
> +	struct device *dev = &pdev->dev;
> +	struct clk *clk;
> +	int ret;
> +
> +	generic = devm_kzalloc(dev, sizeof(*generic), GFP_KERNEL);
> +	if (!generic)
> +		return -ENOMEM;
> +
> +	ret = of_regulator_bulk_get_all(dev, dev_of_node(dev),
> +					&generic->supplies);
> +	if (ret < 0)
> +		return dev_err_probe(dev, ret, "Failed to get regulators\n");
> +
> +	generic->num_supplies = ret;
> +	ret = regulator_bulk_enable(generic->num_supplies, generic->supplies);
> +	if (ret < 0) {
> +		regulator_bulk_free(generic->num_supplies, generic->supplies);
> +		return dev_err_probe(dev, ret, "Failed to enable regulators\n");
> +	}
> +
> +	ret = devm_add_action_or_reset(dev, devm_pci_pwrctrl_generic_power_off,
> +				       generic);
> +	if (ret)
> +		return ret;
> +
> +	clk = devm_clk_get_optional_enabled(dev, NULL);
> +	if (IS_ERR(clk))
> +		return dev_err_probe(dev, PTR_ERR(clk),
> +				     "Failed to enable clock\n");
> +
> +	pci_pwrctrl_init(&generic->ctx, dev);
> +
> +	ret = devm_pci_pwrctrl_device_set_ready(dev, &generic->ctx);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "Failed to register generic pwrctrl driver\n");
> +
> +	return 0;
> +}
> +
> +static const struct of_device_id pci_pwrctrl_generic_of_match[] = {
> +	{
> +		.compatible = "pciclass,0604",
> +	},
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(of, pci_pwrctrl_generic_of_match);
> +
> +static struct platform_driver pci_pwrctrl_generic_driver = {
> +	.driver = {
> +		.name = "pci-pwrctrl-generic",
> +		.of_match_table = pci_pwrctrl_generic_of_match,
> +	},
> +	.probe = pci_pwrctrl_generic_probe,
> +};
> +module_platform_driver(pci_pwrctrl_generic_driver);
> +
> +MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
> +MODULE_DESCRIPTION("Generic PCI Power Control driver for PCI Slots");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/pci/pwrctrl/slot.c b/drivers/pci/pwrctrl/slot.c
> deleted file mode 100644
> index 08e53243cdbd..000000000000
> --- a/drivers/pci/pwrctrl/slot.c
> +++ /dev/null
> @@ -1,91 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0-only
> -/*
> - * Copyright (C) 2024 Linaro Ltd.
> - * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> - */
> -
> -#include <linux/clk.h>
> -#include <linux/device.h>
> -#include <linux/mod_devicetable.h>
> -#include <linux/module.h>
> -#include <linux/pci-pwrctrl.h>
> -#include <linux/platform_device.h>
> -#include <linux/regulator/consumer.h>
> -#include <linux/slab.h>
> -
> -struct pci_pwrctrl_slot_data {
> -	struct pci_pwrctrl ctx;
> -	struct regulator_bulk_data *supplies;
> -	int num_supplies;
> -};
> -
> -static void devm_pci_pwrctrl_slot_power_off(void *data)
> -{
> -	struct pci_pwrctrl_slot_data *slot = data;
> -
> -	regulator_bulk_disable(slot->num_supplies, slot->supplies);
> -	regulator_bulk_free(slot->num_supplies, slot->supplies);
> -}
> -
> -static int pci_pwrctrl_slot_probe(struct platform_device *pdev)
> -{
> -	struct pci_pwrctrl_slot_data *slot;
> -	struct device *dev = &pdev->dev;
> -	struct clk *clk;
> -	int ret;
> -
> -	slot = devm_kzalloc(dev, sizeof(*slot), GFP_KERNEL);
> -	if (!slot)
> -		return -ENOMEM;
> -
> -	ret = of_regulator_bulk_get_all(dev, dev_of_node(dev),
> -					&slot->supplies);
> -	if (ret < 0)
> -		return dev_err_probe(dev, ret, "Failed to get slot regulators\n");
> -
> -	slot->num_supplies = ret;
> -	ret = regulator_bulk_enable(slot->num_supplies, slot->supplies);
> -	if (ret < 0) {
> -		regulator_bulk_free(slot->num_supplies, slot->supplies);
> -		return dev_err_probe(dev, ret, "Failed to enable slot regulators\n");
> -	}
> -
> -	ret = devm_add_action_or_reset(dev, devm_pci_pwrctrl_slot_power_off,
> -				       slot);
> -	if (ret)
> -		return ret;
> -
> -	clk = devm_clk_get_optional_enabled(dev, NULL);
> -	if (IS_ERR(clk))
> -		return dev_err_probe(dev, PTR_ERR(clk),
> -				     "Failed to enable slot clock\n");
> -
> -	pci_pwrctrl_init(&slot->ctx, dev);
> -
> -	ret = devm_pci_pwrctrl_device_set_ready(dev, &slot->ctx);
> -	if (ret)
> -		return dev_err_probe(dev, ret, "Failed to register pwrctrl driver\n");
> -
> -	return 0;
> -}
> -
> -static const struct of_device_id pci_pwrctrl_slot_of_match[] = {
> -	{
> -		.compatible = "pciclass,0604",
> -	},
> -	{ }
> -};
> -MODULE_DEVICE_TABLE(of, pci_pwrctrl_slot_of_match);
> -
> -static struct platform_driver pci_pwrctrl_slot_driver = {
> -	.driver = {
> -		.name = "pci-pwrctrl-slot",
> -		.of_match_table = pci_pwrctrl_slot_of_match,
> -	},
> -	.probe = pci_pwrctrl_slot_probe,
> -};
> -module_platform_driver(pci_pwrctrl_slot_driver);
> -
> -MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
> -MODULE_DESCRIPTION("Generic PCI Power Control driver for PCI Slots");
> -MODULE_LICENSE("GPL");
> 
> -- 
> 2.34.1
> 

-- 
மணிவண்ணன் சதாசிவம்
Re: [PATCH v4 3/9] pci: pwrctrl: rename pci-pwrctrl-slot as generic
Posted by Neil Armstrong 1 month, 2 weeks ago
On 2/16/26 17:33, Manivannan Sadhasivam wrote:
> On Mon, Feb 16, 2026 at 03:21:47PM +0100, Neil Armstrong wrote:
>> The driver is pretty generic and would fit for either
>> PCI Slots or endpoints connected to PCI ports, so rename
>> the driver and module as pci-pwrctrl-generic.
>>
>> Suggested-by: Manivannan Sadhasivam <mani@kernel.org>
>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>> ---
>>   drivers/pci/pwrctrl/Kconfig   | 13 ++++---
>>   drivers/pci/pwrctrl/Makefile  |  4 +-
>>   drivers/pci/pwrctrl/generic.c | 91 +++++++++++++++++++++++++++++++++++++++++++
>>   drivers/pci/pwrctrl/slot.c    | 91 -------------------------------------------
>>   4 files changed, 100 insertions(+), 99 deletions(-)
>>
>> diff --git a/drivers/pci/pwrctrl/Kconfig b/drivers/pci/pwrctrl/Kconfig
>> index e0f999f299bb..0ba095729694 100644
>> --- a/drivers/pci/pwrctrl/Kconfig
>> +++ b/drivers/pci/pwrctrl/Kconfig
>> @@ -11,16 +11,17 @@ config PCI_PWRCTRL_PWRSEQ
>>   	select POWER_SEQUENCING
>>   	select PCI_PWRCTRL
>>   
>> -config PCI_PWRCTRL_SLOT
>> -	tristate "PCI Power Control driver for PCI slots"
> 
> This symbol is selected by a few controller drivers also in:
> drivers/pci/controller/dwc/Kconfig
> 
>> +config PCI_PWRCTRL_GENERIC
>> +	tristate "Generic PCI Power Control driver for PCI slots and endpoints"
>>   	select PCI_PWRCTRL
>>   	help
>> -	  Say Y here to enable the PCI Power Control driver to control the power
>> -	  state of PCI slots.
>> +	  Say Y here to enable the generic PCI Power Control driver to control
>> +	  the power state of PCI slots and endpoints.
>>   
>>   	  This is a generic driver that controls the power state of different
>> -	  PCI slots. The voltage regulators powering the rails of the PCI slots
>> -	  are expected to be defined in the devicetree node of the PCI bridge.
>> +	  PCI slots and endpoints. The voltage regulators powering the rails
>> +	  of the PCI slots or endpoints are expected to be defined in the
>> +	  devicetree node of the PCI bridge.
>>   
>>   config PCI_PWRCTRL_TC9563
>>   	tristate "PCI Power Control driver for TC9563 PCIe switch"
>> diff --git a/drivers/pci/pwrctrl/Makefile b/drivers/pci/pwrctrl/Makefile
>> index 13b02282106c..f6bb4fb9a410 100644
>> --- a/drivers/pci/pwrctrl/Makefile
>> +++ b/drivers/pci/pwrctrl/Makefile
>> @@ -5,7 +5,7 @@ pci-pwrctrl-core-y			:= core.o
>>   
>>   obj-$(CONFIG_PCI_PWRCTRL_PWRSEQ)	+= pci-pwrctrl-pwrseq.o
>>   
>> -obj-$(CONFIG_PCI_PWRCTRL_SLOT)		+= pci-pwrctrl-slot.o
>> -pci-pwrctrl-slot-y			:= slot.o
>> +obj-$(CONFIG_PCI_PWRCTRL_GENERIC)	+= pci-pwrctrl-generic.o
>> +pci-pwrctrl-generic-y			:= generic.o
>>   
>>   obj-$(CONFIG_PCI_PWRCTRL_TC9563)	+= pci-pwrctrl-tc9563.o
>> diff --git a/drivers/pci/pwrctrl/generic.c b/drivers/pci/pwrctrl/generic.c
>> new file mode 100644
>> index 000000000000..a5b7b7965f46
>> --- /dev/null
>> +++ b/drivers/pci/pwrctrl/generic.c
>> @@ -0,0 +1,91 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
>> +/*
>> + * Copyright (C) 2024 Linaro Ltd.
>> + * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
>> + */
>> +
>> +#include <linux/clk.h>
>> +#include <linux/device.h>
>> +#include <linux/mod_devicetable.h>
>> +#include <linux/module.h>
>> +#include <linux/pci-pwrctrl.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/regulator/consumer.h>
>> +#include <linux/slab.h>
>> +
>> +struct pci_pwrctrl_generic_data {
> 
> Ah, just realised that Bjorn renamed these structures and helpers in
> https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/commit/drivers/pci/pwrctrl/slot.c?h=next&id=e40d16e6c23994b28894179b87f9747edd63062a
> 
> So this needs some adapting...

Arghh, ok will update

Thanks,
Neil

> 
> - Mani
> 
>> +	struct pci_pwrctrl ctx;
>> +	struct regulator_bulk_data *supplies;
>> +	int num_supplies;
>> +};
>> +
>> +static void devm_pci_pwrctrl_generic_power_off(void *data)
>> +{
>> +	struct pci_pwrctrl_generic_data *generic = data;
>> +
>> +	regulator_bulk_disable(generic->num_supplies, generic->supplies);
>> +	regulator_bulk_free(generic->num_supplies, generic->supplies);
>> +}
>> +
>> +static int pci_pwrctrl_generic_probe(struct platform_device *pdev)
>> +{
>> +	struct pci_pwrctrl_generic_data *generic;
>> +	struct device *dev = &pdev->dev;
>> +	struct clk *clk;
>> +	int ret;
>> +
>> +	generic = devm_kzalloc(dev, sizeof(*generic), GFP_KERNEL);
>> +	if (!generic)
>> +		return -ENOMEM;
>> +
>> +	ret = of_regulator_bulk_get_all(dev, dev_of_node(dev),
>> +					&generic->supplies);
>> +	if (ret < 0)
>> +		return dev_err_probe(dev, ret, "Failed to get regulators\n");
>> +
>> +	generic->num_supplies = ret;
>> +	ret = regulator_bulk_enable(generic->num_supplies, generic->supplies);
>> +	if (ret < 0) {
>> +		regulator_bulk_free(generic->num_supplies, generic->supplies);
>> +		return dev_err_probe(dev, ret, "Failed to enable regulators\n");
>> +	}
>> +
>> +	ret = devm_add_action_or_reset(dev, devm_pci_pwrctrl_generic_power_off,
>> +				       generic);
>> +	if (ret)
>> +		return ret;
>> +
>> +	clk = devm_clk_get_optional_enabled(dev, NULL);
>> +	if (IS_ERR(clk))
>> +		return dev_err_probe(dev, PTR_ERR(clk),
>> +				     "Failed to enable clock\n");
>> +
>> +	pci_pwrctrl_init(&generic->ctx, dev);
>> +
>> +	ret = devm_pci_pwrctrl_device_set_ready(dev, &generic->ctx);
>> +	if (ret)
>> +		return dev_err_probe(dev, ret, "Failed to register generic pwrctrl driver\n");
>> +
>> +	return 0;
>> +}
>> +
>> +static const struct of_device_id pci_pwrctrl_generic_of_match[] = {
>> +	{
>> +		.compatible = "pciclass,0604",
>> +	},
>> +	{ }
>> +};
>> +MODULE_DEVICE_TABLE(of, pci_pwrctrl_generic_of_match);
>> +
>> +static struct platform_driver pci_pwrctrl_generic_driver = {
>> +	.driver = {
>> +		.name = "pci-pwrctrl-generic",
>> +		.of_match_table = pci_pwrctrl_generic_of_match,
>> +	},
>> +	.probe = pci_pwrctrl_generic_probe,
>> +};
>> +module_platform_driver(pci_pwrctrl_generic_driver);
>> +
>> +MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
>> +MODULE_DESCRIPTION("Generic PCI Power Control driver for PCI Slots");
>> +MODULE_LICENSE("GPL");
>> diff --git a/drivers/pci/pwrctrl/slot.c b/drivers/pci/pwrctrl/slot.c
>> deleted file mode 100644
>> index 08e53243cdbd..000000000000
>> --- a/drivers/pci/pwrctrl/slot.c
>> +++ /dev/null
>> @@ -1,91 +0,0 @@
>> -// SPDX-License-Identifier: GPL-2.0-only
>> -/*
>> - * Copyright (C) 2024 Linaro Ltd.
>> - * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
>> - */
>> -
>> -#include <linux/clk.h>
>> -#include <linux/device.h>
>> -#include <linux/mod_devicetable.h>
>> -#include <linux/module.h>
>> -#include <linux/pci-pwrctrl.h>
>> -#include <linux/platform_device.h>
>> -#include <linux/regulator/consumer.h>
>> -#include <linux/slab.h>
>> -
>> -struct pci_pwrctrl_slot_data {
>> -	struct pci_pwrctrl ctx;
>> -	struct regulator_bulk_data *supplies;
>> -	int num_supplies;
>> -};
>> -
>> -static void devm_pci_pwrctrl_slot_power_off(void *data)
>> -{
>> -	struct pci_pwrctrl_slot_data *slot = data;
>> -
>> -	regulator_bulk_disable(slot->num_supplies, slot->supplies);
>> -	regulator_bulk_free(slot->num_supplies, slot->supplies);
>> -}
>> -
>> -static int pci_pwrctrl_slot_probe(struct platform_device *pdev)
>> -{
>> -	struct pci_pwrctrl_slot_data *slot;
>> -	struct device *dev = &pdev->dev;
>> -	struct clk *clk;
>> -	int ret;
>> -
>> -	slot = devm_kzalloc(dev, sizeof(*slot), GFP_KERNEL);
>> -	if (!slot)
>> -		return -ENOMEM;
>> -
>> -	ret = of_regulator_bulk_get_all(dev, dev_of_node(dev),
>> -					&slot->supplies);
>> -	if (ret < 0)
>> -		return dev_err_probe(dev, ret, "Failed to get slot regulators\n");
>> -
>> -	slot->num_supplies = ret;
>> -	ret = regulator_bulk_enable(slot->num_supplies, slot->supplies);
>> -	if (ret < 0) {
>> -		regulator_bulk_free(slot->num_supplies, slot->supplies);
>> -		return dev_err_probe(dev, ret, "Failed to enable slot regulators\n");
>> -	}
>> -
>> -	ret = devm_add_action_or_reset(dev, devm_pci_pwrctrl_slot_power_off,
>> -				       slot);
>> -	if (ret)
>> -		return ret;
>> -
>> -	clk = devm_clk_get_optional_enabled(dev, NULL);
>> -	if (IS_ERR(clk))
>> -		return dev_err_probe(dev, PTR_ERR(clk),
>> -				     "Failed to enable slot clock\n");
>> -
>> -	pci_pwrctrl_init(&slot->ctx, dev);
>> -
>> -	ret = devm_pci_pwrctrl_device_set_ready(dev, &slot->ctx);
>> -	if (ret)
>> -		return dev_err_probe(dev, ret, "Failed to register pwrctrl driver\n");
>> -
>> -	return 0;
>> -}
>> -
>> -static const struct of_device_id pci_pwrctrl_slot_of_match[] = {
>> -	{
>> -		.compatible = "pciclass,0604",
>> -	},
>> -	{ }
>> -};
>> -MODULE_DEVICE_TABLE(of, pci_pwrctrl_slot_of_match);
>> -
>> -static struct platform_driver pci_pwrctrl_slot_driver = {
>> -	.driver = {
>> -		.name = "pci-pwrctrl-slot",
>> -		.of_match_table = pci_pwrctrl_slot_of_match,
>> -	},
>> -	.probe = pci_pwrctrl_slot_probe,
>> -};
>> -module_platform_driver(pci_pwrctrl_slot_driver);
>> -
>> -MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
>> -MODULE_DESCRIPTION("Generic PCI Power Control driver for PCI Slots");
>> -MODULE_LICENSE("GPL");
>>
>> -- 
>> 2.34.1
>>
>