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Date: Wed, 21 Jun 2023 15:38:45 +0530
From: Krishna Kurapati PSSNV <quic_kriskura@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@...aro.org>,
Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Andy Gross <agross@...nel.org>,
"Bjorn Andersson" <andersson@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
Felipe Balbi <balbi@...nel.org>,
Wesley Cheng <quic_wcheng@...cinc.com>,
Johan Hovold <johan@...nel.org>
CC: <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
<quic_pkondeti@...cinc.com>, <quic_ppratap@...cinc.com>,
<quic_jackp@...cinc.com>, <quic_harshq@...cinc.com>,
<ahalaney@...hat.com>, <quic_shazhuss@...cinc.com>
Subject: Re: [PATCH v9 06/10] usb: dwc3: qcom: Add support to read IRQ's
related to multiport
On 6/21/2023 3:35 PM, Konrad Dybcio wrote:
> On 21.06.2023 06:36, Krishna Kurapati wrote:
>> Add support to read Multiport IRQ's related to quad port controller
>> of SA8295 Device.
>>
>> Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
>> ---
>> drivers/usb/dwc3/dwc3-qcom.c | 108 +++++++++++++++++++++++++++++------
>> 1 file changed, 91 insertions(+), 17 deletions(-)
>>
>> diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
>> index 3de43df6bbe8..3ab48a6925fe 100644
>> --- a/drivers/usb/dwc3/dwc3-qcom.c
>> +++ b/drivers/usb/dwc3/dwc3-qcom.c
>> @@ -74,9 +74,9 @@ struct dwc3_qcom {
>> struct reset_control *resets;
>>
>> int hs_phy_irq;
>> - int dp_hs_phy_irq;
>> - int dm_hs_phy_irq;
>> - int ss_phy_irq;
>> + int dp_hs_phy_irq[4];
>> + int dm_hs_phy_irq[4];
>> + int ss_phy_irq[2];
> Not sure if that's been raised previously, but having raw numbers here
> is not very descriptive.. MAX_NUM_MP_HSPHY or something would be helpful
> for readability..
>
> Konrad
Hi Konrad,
This has been implented in v9. Wasn't there till v8.
Yes, will replace numbers with Macros.
Regards,
Krishna,
>> enum usb_device_speed usb2_speed;
>>
>> struct extcon_dev *edev;
>> @@ -375,16 +375,16 @@ static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)
>> dwc3_qcom_disable_wakeup_irq(qcom->hs_phy_irq);
>>
>> if (qcom->usb2_speed == USB_SPEED_LOW) {
>> - dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
>> + dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq[0]);
>> } else if ((qcom->usb2_speed == USB_SPEED_HIGH) ||
>> (qcom->usb2_speed == USB_SPEED_FULL)) {
>> - dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
>> + dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq[0]);
>> } else {
>> - dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
>> - dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
>> + dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq[0]);
>> + dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq[0]);
>> }
>>
>> - dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq);
>> + dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq[0]);
>> }
>>
>> static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
>> @@ -401,20 +401,20 @@ static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
>> */
>>
>> if (qcom->usb2_speed == USB_SPEED_LOW) {
>> - dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq,
>> + dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq[0],
>> IRQ_TYPE_EDGE_FALLING);
>> } else if ((qcom->usb2_speed == USB_SPEED_HIGH) ||
>> (qcom->usb2_speed == USB_SPEED_FULL)) {
>> - dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq,
>> + dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq[0],
>> IRQ_TYPE_EDGE_FALLING);
>> } else {
>> - dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq,
>> + dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq[0],
>> IRQ_TYPE_EDGE_RISING);
>> - dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq,
>> + dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq[0],
>> IRQ_TYPE_EDGE_RISING);
>> }
>>
>> - dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq, 0);
>> + dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq[0], 0);
>> }
>>
>> static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup)
>> @@ -535,6 +535,80 @@ static int dwc3_qcom_get_irq(struct platform_device *pdev,
>> return ret;
>> }
>>
>> +static int dwc3_qcom_setup_mp_irq(struct platform_device *pdev)
>> +{
>> + struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
>> + char irq_name[15];
>> + int irq;
>> + int ret;
>> + int i;
>> +
>> + for (i = 0; i < 4; i++) {
>> + if (qcom->dp_hs_phy_irq[i])
>> + continue;
>> +
>> + sprintf(irq_name, "dp%d_hs_phy_irq", i+1);
>> + irq = dwc3_qcom_get_irq(pdev, irq_name, -1);
>> + if (irq > 0) {
>> + irq_set_status_flags(irq, IRQ_NOAUTOEN);
>> + ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
>> + qcom_dwc3_resume_irq,
>> + IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
>> + irq_name, qcom);
>> + if (ret) {
>> + dev_err(qcom->dev, "%s failed: %d\n", irq_name, ret);
>> + return ret;
>> + }
>> + }
>> +
>> + qcom->dp_hs_phy_irq[i] = irq;
>> + }
>> +
>> + for (i = 0; i < 4; i++) {
>> + if (qcom->dm_hs_phy_irq[i])
>> + continue;
>> +
>> + sprintf(irq_name, "dm%d_hs_phy_irq", i+1);
>> + irq = dwc3_qcom_get_irq(pdev, irq_name, -1);
>> + if (irq > 0) {
>> + irq_set_status_flags(irq, IRQ_NOAUTOEN);
>> + ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
>> + qcom_dwc3_resume_irq,
>> + IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
>> + irq_name, qcom);
>> + if (ret) {
>> + dev_err(qcom->dev, "%s failed: %d\n", irq_name, ret);
>> + return ret;
>> + }
>> + }
>> +
>> + qcom->dm_hs_phy_irq[i] = irq;
>> + }
>> +
>> + for (i = 0; i < 2; i++) {
>> + if (qcom->ss_phy_irq[i])
>> + continue;
>> +
>> + sprintf(irq_name, "ss%d_phy_irq", i+1);
>> + irq = dwc3_qcom_get_irq(pdev, irq_name, -1);
>> + if (irq > 0) {
>> + irq_set_status_flags(irq, IRQ_NOAUTOEN);
>> + ret = devm_request_threaded_irq(qcom->dev, irq, NULL,
>> + qcom_dwc3_resume_irq,
>> + IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
>> + irq_name, qcom);
>> + if (ret) {
>> + dev_err(qcom->dev, "%s failed: %d\n", irq_name, ret);
>> + return ret;
>> + }
>> + }
>> +
>> + qcom->ss_phy_irq[i] = irq;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> static int dwc3_qcom_setup_irq(struct platform_device *pdev)
>> {
>> struct dwc3_qcom *qcom = platform_get_drvdata(pdev);
>> @@ -570,7 +644,7 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev)
>> dev_err(qcom->dev, "dp_hs_phy_irq failed: %d\n", ret);
>> return ret;
>> }
>> - qcom->dp_hs_phy_irq = irq;
>> + qcom->dp_hs_phy_irq[0] = irq;
>> }
>>
>> irq = dwc3_qcom_get_irq(pdev, "dm_hs_phy_irq",
>> @@ -585,7 +659,7 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev)
>> dev_err(qcom->dev, "dm_hs_phy_irq failed: %d\n", ret);
>> return ret;
>> }
>> - qcom->dm_hs_phy_irq = irq;
>> + qcom->dm_hs_phy_irq[0] = irq;
>> }
>>
>> irq = dwc3_qcom_get_irq(pdev, "ss_phy_irq",
>> @@ -600,10 +674,10 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev)
>> dev_err(qcom->dev, "ss_phy_irq failed: %d\n", ret);
>> return ret;
>> }
>> - qcom->ss_phy_irq = irq;
>> + qcom->ss_phy_irq[0] = irq;
>> }
>>
>> - return 0;
>> + return dwc3_qcom_setup_mp_irq(pdev);;
>> }
>>
>> static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count)
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