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Wed, 28 May 2025 12:57:24 -0700 (PDT) Date: Wed, 28 May 2025 22:57:20 +0300 From: Dan Carpenter To: Peter Chen Cc: Greg Kroah-Hartman , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , linux-usb@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ghennadi Procopciuc , s32@nxp.com, linaro-s32@linaro.org Subject: [PATCH 2/4] usb: chipidea: usbmisc: s32g: Add a REINIT_DURING_RESUME flag Message-ID: References: Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: From: Ghennadi Procopciuc The s32g2 and s32g3 chips will need to re-initialize in the resume path. Add a REINIT_DURING_RESUME flag which will trigger the reinitialization. Signed-off-by: Ghennadi Procopciuc Signed-off-by: Dan Carpenter --- drivers/usb/chipidea/usbmisc_imx.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 118b9a68496b..95759a4ec60c 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -155,6 +155,9 @@ BLKCTL_OTG_VBUS_WAKEUP_EN | \ BLKCTL_OTG_DPDM_WAKEUP_EN) +/* Flags for 'struct imx_usbmisc' */ +#define REINIT_DURING_RESUME BIT(1) + struct usbmisc_ops { /* It's called once when probe a usb device */ int (*init)(struct imx_usbmisc_data *data); @@ -171,6 +174,7 @@ struct usbmisc_ops { /* It's called when system resume from usb power lost */ int (*power_lost_check)(struct imx_usbmisc_data *data); void (*vbus_comparator_on)(struct imx_usbmisc_data *data, bool on); + u32 flags; }; struct imx_usbmisc { @@ -1266,6 +1270,9 @@ int imx_usbmisc_resume(struct imx_usbmisc_data *data, bool wakeup) usbmisc = dev_get_drvdata(data->dev); + if ((usbmisc->ops->flags & REINIT_DURING_RESUME) && usbmisc->ops->init) + usbmisc->ops->init(data); + if (usbmisc->ops->power_lost_check) ret = usbmisc->ops->power_lost_check(data); if (ret > 0) {