Re: [PATCH v2 4/4] usb: musb: Add support for MediaTek musb controller
From: Min Guo <hidden>
Date: 2019-01-16 09:39:13
Also in:
linux-devicetree, linux-mediatek, linux-usb, lkml
From: Min Guo <hidden>
Date: 2019-01-16 09:39:13
Also in:
linux-devicetree, linux-mediatek, linux-usb, lkml
Hi Bin, On Tue, 2019-01-15 at 14:38 -0600, Bin Liu wrote:
Hi Min, very close, thanks. Below I tried to explain a further cleanup in musb_clearb/w() and musb_get/set_toggle() implementation. Please let me know if it is not clear. Basically, we don't need musb_default_clearb/w(), just assign the musb_io function pointers to musb_readb/w(). Then the mtk platform musb_clearb/w() calls musb_readb/w() and musb_writeb/w() to handle W1C.
Sorry to bother you again, I encounter a problem when prepare the patch. The define of musb_clearb/w and musb_readb/w are difference as follow, and cannot be directly assigned: u8/u16 (*readb/w)(const void __iomem *addr, unsigned offset) void (*clearb/w)(void __iomem *addr, unsigned int offset)) if modify clearb/w as: u8/u16 (*clearb/w)(const void __iomem *addr, unsigned int offset)) then musb_clear needs writeb/w the const addr. Can I delete const in (*readb/w)?
regards, -Bin.
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