[PATCH RFC v3 4/5] phy: hisilicon: hisi-inno-phy: add support for Hi3798MV200 INNO PHY

[Yang Xiwen]

On 2/20/2024 5:34 AM, Krzysztof Kozlowski wrote:
> On 19/02/2024 22:28, Yang Xiwen via B4 Relay wrote:
>> From: Yang Xiwen <forbidden405 at outlook.com>
>>
>> Direct MMIO resgiter access is used by Hi3798MV200. For other models,
>> of_iomap() returns 0 due to insufficient length. So they are unaffected.
>>
>> Also Hi3798MV200 INNO PHY has an extra reset required to be deasserted,
>> switch to reset_control_bulk_() APIs to resolve this.
>>
>> Signed-off-by: Yang Xiwen <forbidden405 at outlook.com>
>> ---
>>   drivers/phy/hisilicon/phy-hisi-inno-usb2.c | 65 ++++++++++++++++++------------
>>   1 file changed, 39 insertions(+), 26 deletions(-)
>>
>> diff --git a/drivers/phy/hisilicon/phy-hisi-inno-usb2.c b/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
>> index b7e740eb4752..5175e5a351ac 100644
>> --- a/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
>> +++ b/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
>> @@ -10,6 +10,7 @@
>>   #include <linux/io.h>
>>   #include <linux/module.h>
>>   #include <linux/of.h>
>> +#include <linux/of_address.h>
>>   #include <linux/phy/phy.h>
>>   #include <linux/platform_device.h>
>>   #include <linux/reset.h>
>> @@ -43,6 +44,7 @@
>>   #define PHY_CLK_ENABLE		BIT(2)
>>   
>>   struct hisi_inno_phy_port {
>> +	void __iomem *base;
>>   	struct reset_control *utmi_rst;
>>   	struct hisi_inno_phy_priv *priv;
>>   };
>> @@ -50,7 +52,7 @@ struct hisi_inno_phy_port {
>>   struct hisi_inno_phy_priv {
>>   	void __iomem *mmio;
>>   	struct clk *ref_clk;
>> -	struct reset_control *por_rst;
>> +	struct reset_control *rsts;
> This does not look related to this patch at all.
I should emphasize this in commit log. Hi3798MV200 have two resets 
rather than one. To make things easier, I simply used 
reset_control_array APIs instead.
>
>>   	unsigned int type;
>>   	struct hisi_inno_phy_port ports[INNO_PHY_PORT_NUM];
>>   };
>
>
> Best regards,
> Krzysztof
>

-- 
Regards,
Yang Xiwen