Re: [PATCH v2 2/2] usb: phy: Add USB3 PHY support for Intel LGM SoC

From: Ramuthevar, Vadivel MuruganX
Date: Thu Jun 11 2020 - 04:36:41 EST


Hi Andy,

Thank you so much for the review comments...

On 11/6/2020 4:12 pm, Andy Shevchenko wrote:
On Thu, Jun 11, 2020 at 10:12:46AM +0800, Ramuthevar,Vadivel MuruganX wrote:
From: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@xxxxxxxxxxxxxxx>

Add support for USB PHY on Intel LGM SoC.

...

+static int get_flipped(struct tca_apb *ta, bool *flipped)
+{
+ union extcon_property_value property;
+ int ret;
+
+ ret = extcon_get_property(ta->phy.edev, EXTCON_USB_HOST,
+ EXTCON_PROP_USB_TYPEC_POLARITY, &property);
+ if (ret) {
+ dev_err(ta->phy.dev, "no polarity property from extcon\n");

+ return false;

return ret;
Noted.

+ }
+
+ *flipped = property.intval;
+

+ return *flipped;

return 0;
Noted.

+}

...I suppose it should be as above.

...

+ ret = readl_poll_timeout(ctrl1, val, val & SRAM_INIT_DONE,
+ 10, 10 * 1000);
exceeds more than 80 characters, so checkpatch throws warnings, to avoid that move to next line.

On one line easier to read.

+ if (ret) {
+ dev_err(ta->phy.dev, "SRAM init failed, 0x%x\n", val);
+ return ret;
+ }

...

+static int phy_set_vbus(struct usb_phy *phy, int on)
+{
+ struct tca_apb *ta = container_of(phy, struct tca_apb, phy);

+ int ret = 0;

Assignment is redundant.
so you mean , should be declared as
int ret;
right?


+
+ if (on) {
+ ret = regulator_enable(ta->vbus);
+ if (ret)
+ dev_err(ta->phy.dev, "regulator not enabled\n");
+ } else {
+ ret = regulator_disable(ta->vbus);
+ if (ret)
+ dev_err(ta->phy.dev, "regulator not disabled\n");
+ }
+
+ return ret;
+}

...

+ ret = get_flipped(ta, &flipped);
+ if (!ret)
+ dev_err(ta->phy.dev, "no polarity property from extcon\n");

This should be fixed accordingly.
Noted.

...

+ dev_info(ta->phy.dev, "connected%s\n",
+ flipped ? " flipped" : "");

One line.
exceeds more than 80 characters, so checkpatch throw warnings, to avoid that moved to next line.

Regards
Vadivel