Hi, Biju, On 23.08.2024 10:25, Biju Das wrote: > Hi Claudiu, > >> -----Original Message----- >> From: Claudiu <claudiu.beznea@xxxxxxxxx> >> Sent: Thursday, August 22, 2024 4:28 PM >> Subject: [PATCH 07/16] reset: rzg2l-usbphy-ctrl: Get reset control array >> >> From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx> >> >> Before accessing the USB area of the RZ/G3S SoC the PWRRDY bit of the SYS_USB_PWRRDY register need to >> be cleared. When USB area is not used the PWRRDY bit of the SYS_USB_PWRRDY register need to be set. >> This register is in the SYSC controller address space and the assert/de-assert of the signal handled >> by SYSC_USB_PWRRDY was implemented as a reset signal. >> >> The USB modules available on the RZ/G3S SoC that need this bit set are: >> - USB ch0 (supporting host and peripheral mode) >> - USB ch2 (supporting host mode) >> - USBPHY control >> >> As the USBPHY control is the root device for all the other USB channels (USB ch0, USB ch1) add support >> to set the PWRRDY for the USB area when initializing the USBPHY control. As this is done though reset >> signals get the reset array in the USBPHY control driver. >> > > Comment applicable, if the USB PWRRDY signal is modelled as reset signal. > > There is no user for this patch. The first user is RZ/G3S and is there is no support yet. > I think you should merge this patch with next one so that there is a user(RZ/G3S) > for this patch. I have nothing against to squash it. I was seeing it differently: - this patch prepares the ground for the addition of RZ/G3S - the next patch just enables the support for RZ/G3S It looks to me more modular like this, patches are simpler, easier for review and each issue is described differently in patch description. I can do it either ways. Thank you, Claudiu Beznea > Cheers, > Biju > >> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx> >> --- >> drivers/reset/reset-rzg2l-usbphy-ctrl.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/reset/reset-rzg2l-usbphy-ctrl.c b/drivers/reset/reset-rzg2l-usbphy-ctrl.c >> index 1cd157f4f03b..8b64c12f3bec 100644 >> --- a/drivers/reset/reset-rzg2l-usbphy-ctrl.c >> +++ b/drivers/reset/reset-rzg2l-usbphy-ctrl.c >> @@ -132,7 +132,7 @@ static int rzg2l_usbphy_ctrl_probe(struct platform_device *pdev) >> if (IS_ERR(regmap)) >> return PTR_ERR(regmap); >> >> - priv->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); >> + priv->rstc = devm_reset_control_array_get_exclusive(&pdev->dev); >> if (IS_ERR(priv->rstc)) >> return dev_err_probe(dev, PTR_ERR(priv->rstc), >> "failed to get reset\n"); >> -- >> 2.39.2 >
