[RFT,1/2] stmmac: dwmac-loongson: drop useless check for compatible fallback

Message ID 20230616103127.285608-1-krzysztof.kozlowski@linaro.org
State New
Headers
Series [RFT,1/2] stmmac: dwmac-loongson: drop useless check for compatible fallback |

Commit Message

Krzysztof Kozlowski June 16, 2023, 10:31 a.m. UTC
  Device binds to proper PCI ID (LOONGSON, 0x7a03), already listed in DTS,
so checking for some other compatible does not make sense.  It cannot be
bound to unsupported platform.

Drop useless, incorrect (space in between) and undocumented compatible.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 5 -----
 1 file changed, 5 deletions(-)
  

Comments

Conor Dooley June 16, 2023, 6:52 p.m. UTC | #1
On Fri, Jun 16, 2023 at 12:31:26PM +0200, Krzysztof Kozlowski wrote:
> Device binds to proper PCI ID (LOONGSON, 0x7a03), already listed in DTS,
> so checking for some other compatible does not make sense.  It cannot be
> bound to unsupported platform.
> 
> Drop useless, incorrect (space in between) and undocumented compatible.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Might be worth noting that dropping it is required to allow the
new loongarch dts stuff to be functional with a sane set of compatibles.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Cheers,
Conor.
  
Yanteng Si Dec. 10, 2023, 6:48 a.m. UTC | #2
在 2023/6/17 02:52, Conor Dooley 写道:
> On Fri, Jun 16, 2023 at 12:31:26PM +0200, Krzysztof Kozlowski wrote:
>> Device binds to proper PCI ID (LOONGSON, 0x7a03), already listed in DTS,
>> so checking for some other compatible does not make sense.  It cannot be
>> bound to unsupported platform.
>>
>> Drop useless, incorrect (space in between) and undocumented compatible.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Might be worth noting that dropping it is required to allow the
> new loongarch dts stuff to be functional with a sane set of compatibles.
>
> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Thank you Krzysztof for your work. when I am
adding more devices support to stmmac, I found that your
two patches seemed to be forgotten.
Thomas, Jiaxun. Can the two patches get an Acked-by?
My stmmac patch thread:
<https://lore.kernel.org/loongarch/cover.1699533745.git 
.siyanteng@loongson.cn/T/#md3108d29a5efe71b27f4c5ccf5d0217571bf6586>
Thanks,
Yanteng

>
> Cheers,
> Conor.
  
Jiaxun Yang Dec. 11, 2023, 9:17 a.m. UTC | #3
在2023年12月10日十二月 上午6:48,Yanteng Si写道:
> 在 2023/6/17 02:52, Conor Dooley 写道:
>> On Fri, Jun 16, 2023 at 12:31:26PM +0200, Krzysztof Kozlowski wrote:
>>> Device binds to proper PCI ID (LOONGSON, 0x7a03), already listed in DTS,
>>> so checking for some other compatible does not make sense.  It cannot be
>>> bound to unsupported platform.
>>>
>>> Drop useless, incorrect (space in between) and undocumented compatible.
>>>
>>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> Might be worth noting that dropping it is required to allow the
>> new loongarch dts stuff to be functional with a sane set of compatibles.
>>
>> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
> Thank you Krzysztof for your work. when I am
> adding more devices support to stmmac, I found that your
> two patches seemed to be forgotten.
> Thomas, Jiaxun. Can the two patches get an Acked-by?
> My stmmac patch thread:
> <https://lore.kernel.org/loongarch/cover.1699533745.git 
> .siyanteng@loongson.cn/T/#md3108d29a5efe71b27f4c5ccf5d0217571bf6586>

Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com>

Better to resend without RFC :-)

Thanks

> Thanks,
> Yanteng
>
>>
>> Cheers,
>> Conor.
  

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
index a25c187d3185..900972521b59 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
@@ -59,11 +59,6 @@  static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id
 		return -ENODEV;
 	}
 
-	if (!of_device_is_compatible(np, "loongson, pci-gmac")) {
-		pr_info("dwmac_loongson_pci: Incompatible OF node\n");
-		return -ENODEV;
-	}
-
 	plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
 	if (!plat)
 		return -ENOMEM;