linux-kernel - Re: [PATCH v6 3/9] PCI: endpoint: functions/pci-epf-test: Add second entry

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Date:   Tue, 24 Apr 2018 18:11:41 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        <bhelgaas@...gle.com>, <lorenzo.pieralisi@....com>,
        <Joao.Pinto@...opsys.com>, <jingoohan1@...il.com>,
        <robh+dt@...nel.org>, <mark.rutland@....com>
CC:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v6 3/9] PCI: endpoint: functions/pci-epf-test: Add second
 entry



On Wednesday 18 April 2018 08:16 PM, Gustavo Pimentel wrote:
> Adds a seconds entry on the pci_epf_test_ids structure that disables the
> linkup_notifier parameter on driver for the designware EP.
> 
> This allows designware EPs that doesn't have linkup notification signal
> to work with pcitest.
> 
> Updates the binding documentation accordingly.
> 
> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
> ---
> Change v2->v3:
>  - Added second entry in pci_epf_test_ids structure.
>  - Remove test_reg_bar field assignment on second entry.
> Changes v3->v4:
>  - Nothing changed, just to follow the patch set version.
> Changes v4->v5:
>  - Changed pci_epf_test_cfg2 to pci_epf_test_designware.
> Changes v5->v6:
>  - Changed name field from pci_epf_test_designware to pci_epf_test_dw.
> 
>  Documentation/PCI/endpoint/function/binding/pci-test.txt | 2 ++
>  drivers/pci/endpoint/functions/pci-epf-test.c            | 8 ++++++++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/Documentation/PCI/endpoint/function/binding/pci-test.txt b/Documentation/PCI/endpoint/function/binding/pci-test.txt
> index 3b68b95..dc39f47 100644
> --- a/Documentation/PCI/endpoint/function/binding/pci-test.txt
> +++ b/Documentation/PCI/endpoint/function/binding/pci-test.txt
> @@ -1,6 +1,8 @@
>  PCI TEST ENDPOINT FUNCTION
>  
>  name: Should be "pci_epf_test" to bind to the pci_epf_test driver.
> +name: Should be "pci_epf_test_dw" to bind to the pci_epf_test driver
> +      with a custom configuration for the designware EP.
>  
>  Configurable Fields:
>  vendorid	 : should be 0x104c
> diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
> index 7cef851..b7dff87 100644
> --- a/drivers/pci/endpoint/functions/pci-epf-test.c
> +++ b/drivers/pci/endpoint/functions/pci-epf-test.c
> @@ -459,10 +459,18 @@ static int pci_epf_test_bind(struct pci_epf *epf)
>  	return 0;
>  }
>  
> +static const struct pci_epf_test_data data_cfg2 = {

Would prefer a descriptive name, otherwise

Acked-by: Kishon Vijay Abraham I <kishon@...com>
> +	.linkup_notifier = false
> +};
> +
>  static const struct pci_epf_device_id pci_epf_test_ids[] = {
>  	{
>  		.name = "pci_epf_test",
>  	},
> +	{
> +		.name = "pci_epf_test_dw",
> +		.driver_data = (kernel_ulong_t)&data_cfg2,
> +	},
>  	{},
>  };
>  
>