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Message-ID: <df81787b-3ad4-62b7-7a39-fdca6775bae1@quicinc.com>
Date:   Mon, 21 Feb 2022 12:25:45 +0530
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Subject: Re: [PATCH v2 05/19] ath11k: Remove core PCI references from PCI
 common code
Content-Language: en-US
To:     Kalle Valo <kvalo@kernel.org>
CC:     <ath11k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
        <devicetree@vger.kernel.org>, <robh@kernel.org>
References: <1642337235-8618-1-git-send-email-quic_mpubbise@quicinc.com>
 <1642337235-8618-6-git-send-email-quic_mpubbise@quicinc.com>
 <87a6fggo0h.fsf@kernel.org>
From:   Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
In-Reply-To: <87a6fggo0h.fsf@kernel.org>
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On 1/28/2022 3:50 PM, Kalle Valo wrote:
> Manikanta Pubbisetty <quic_mpubbise@quicinc.com> writes:
> 
>> Remove core PCI and ath11k PCI references(struct ath11k_pci)
>> from PCI common code. Since, PCI common code will be used
>> by hybrid bus devices, this code should be independent
>> from ATH11K PCI references and Linux core PCI references
>> like struct pci_dev.
>>
>> Since this change introduces function callbacks for bus wakeup
>> and bus release operations, wakeup_mhi HW param is no longer
>> needed and hence it is removed completely. Alternatively, bus
>> wakeup/release ops for QCA9074 are initialized to NULL as
>> QCA9704 does not need bus wakeup/release for register accesses.
>>
>> Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00573-QCAMSLSWPLZ-1
>> Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
>> Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
>> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1
>>
>> Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
> 
> [...]
> 
>> @@ -651,6 +653,13 @@ struct ath11k_bus_params {
>>   	bool fixed_bdf_addr;
>>   	bool fixed_mem_region;
>>   	bool static_window_map;
>> +	struct {
>> +		void (*wakeup)(struct ath11k_base *ab);
>> +		void (*release)(struct ath11k_base *ab);
>> +		int (*get_msi_irq)(struct ath11k_base *ab, unsigned int vector);
>> +		void (*window_write32)(struct ath11k_base *ab, u32 offset, u32 value);
>> +		u32 (*window_read32)(struct ath11k_base *ab, u32 offset);
>> +	} ops;
>>   };
> 
> Please don't use bus_params for this, I'm starting to suspect that we
> actually need to remove struct ath11k_bus_params altogether. It would be
> cleaner to have separate 'struct ath11k_pci_ops' or something like that.
> 

Sure, something like 'struct ath11k_bus_ops' in ath11k_base struct would 
be appropriate.