linux-kernel - Re: [PATCH] phy: hisilicon: Adopt phy-hisi-inno-usb2 to Hi3798MV100

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Message-ID: <CAAXyoMN2CvVkL+=wT=Q4zJZJa-qUiyiVS4SZquVQ1LUfDmoM5Q@mail.gmail.com>
Date:   Mon, 8 May 2023 19:39:22 +0800
From:   Yangfl <mmyangfl@...il.com>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     linux-phy@...ts.infradead.org,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] phy: hisilicon: Adopt phy-hisi-inno-usb2 to Hi3798MV100

Vinod Koul <vkoul@...nel.org> 于2023年5月8日周一 15:41写道：
>
> On 07-05-23, 23:46, David Yang wrote:
> > Hisilicon also uses phy-hisi-inno-usb2 on Hi3798MV100, with a slightly
> > different register convention.
>
> OK, so what should I expect from this patch, pls document that here...

Hi3798MV100 usb2 phy. Which kind of document should I put here?

>
> >
> > Signed-off-by: David Yang <mmyangfl@...il.com>
> > ---
> >  drivers/phy/hisilicon/Kconfig              |  2 +-
> >  drivers/phy/hisilicon/phy-hisi-inno-usb2.c | 67 ++++++++++++++++------
> >  2 files changed, 51 insertions(+), 18 deletions(-)
> >
> > diff --git a/drivers/phy/hisilicon/Kconfig b/drivers/phy/hisilicon/Kconfig
> > index d3b92c288554..6c89136fc8c2 100644
> > --- a/drivers/phy/hisilicon/Kconfig
> > +++ b/drivers/phy/hisilicon/Kconfig
> > @@ -54,7 +54,7 @@ config PHY_HISTB_COMBPHY
> >
> >  config PHY_HISI_INNO_USB2
> >       tristate "HiSilicon INNO USB2 PHY support"
> > -     depends on (ARCH_HISI && ARM64) || COMPILE_TEST
> > +     depends on ARCH_HISI || COMPILE_TEST
>
> why this change?

Hi3798MV100 is a A9 ARM32 only soc.

>
> >       select GENERIC_PHY
> >       select MFD_SYSCON
> >       help
> > diff --git a/drivers/phy/hisilicon/phy-hisi-inno-usb2.c b/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
> > index b133ae06757a..b5d006f38934 100644
> > --- a/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
> > +++ b/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
> > @@ -9,7 +9,7 @@
> >  #include <linux/delay.h>
> >  #include <linux/io.h>
> >  #include <linux/module.h>
> > -#include <linux/platform_device.h>
> > +#include <linux/of_device.h>
> >  #include <linux/phy/phy.h>
> >  #include <linux/reset.h>
> >
> > @@ -20,12 +20,28 @@
> >  #define PHY_CLK_STABLE_TIME  2       /* unit:ms */
> >  #define UTMI_RST_COMPLETE_TIME       2       /* unit:ms */
> >  #define POR_RST_COMPLETE_TIME        300     /* unit:us */
> > -#define PHY_TEST_DATA                GENMASK(7, 0)
> > -#define PHY_TEST_ADDR                GENMASK(15, 8)
> > -#define PHY_TEST_PORT                GENMASK(18, 16)
> > -#define PHY_TEST_WREN                BIT(21)
> > -#define PHY_TEST_CLK         BIT(22) /* rising edge active */
> > -#define PHY_TEST_RST         BIT(23) /* low active */
> > +
> > +#define PHY_TYPE_0   0
> > +#define PHY_TYPE_1   1
> > +
> > +#define PHY0_TEST_DATA               GENMASK(7, 0)
>
> same as previous what changed??

Register convention for PHY1 below, as mentioned in commit message.