Re: [PATCH v18 2/9] usb: dwc3: core: Access XHCI address space temporarily to read port info

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On 4/3/2024 12:36 PM, Johan Hovold wrote:
On Wed, Apr 03, 2024 at 10:54:25AM +0530, Krishna Kurapati PSSNV wrote:
+static int dwc3_read_port_info(struct dwc3 *dwc)
+{
+	void __iomem *base;
+	u8 major_revision;
+	u32 offset;
+	u32 val;
+
+	/*
+	 * Remap xHCI address space to access XHCI ext cap regs since it is
+	 * needed to get information on number of ports present.
+	 */
+	base = ioremap(dwc->xhci_resources[0].start,
+		       resource_size(&dwc->xhci_resources[0]));
+	if (IS_ERR(base))
+		return PTR_ERR(base);

Looks like you forgot to address some of the comments you said you'd
update previously if you submit a new version to the series.

[*] https://lore.kernel.org/linux-usb/af73110d-e13e-4183-af11-aed869ac0a31@xxxxxxxxxxx/


Apologies. I agree. I was too much focused on acpi removal and interrupt
cleanup, I forgot the last comment you gave.

Can I send in a separate patch for this ?

The series has not been merged yet so you can address both issues in a
v19. Perhaps wait a day or two in case Thinh has further comments.


Sure Johan.

Also after making the following two changes:

1. Rename dwc3_read_port_info(...) to dwc3_get_num_ports(...)
2. Changing "if (IS_ERR(base))" to "if (!base)"

Can I still retain your RB tag ?

Regards,
Krishna,




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