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Message-ID: <aB06lQs9d0q8pMU_@pie.lan>
Date: Thu, 8 May 2025 23:13:25 +0000
From: Yao Zi <ziyao@...root.org>
To: Heiko Stuebner <heiko@...ech.de>, Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Frank Wang <frank.wang@...k-chips.com>,
Andy Yan <andy.yan@...k-chips.com>,
Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
Detlev Casanova <detlev.casanova@...labora.com>,
Shresth Prasad <shresthprasad7@...il.com>,
Chukun Pan <amadeus@....edu.cn>, Jonas Karlman <jonas@...boo.se>
Cc: linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] phy: rockchip: naneng-combphy: Add RK3528 support
On Thu, May 08, 2025 at 07:26:13PM +0200, Heiko Stuebner wrote:
> Am Donnerstag, 8. Mai 2025, 15:53:06 Mitteleuropäische Sommerzeit schrieb Yao Zi:
> > Rockchip RK3528 integrates one naneng-combphy that is able to operate in
> > PCIe and USB3 mode. The control logic is similar to previous variants of
> > naneng-combphy but the register layout is apperantly different from the
> > RK3568 one.
> >
> > Signed-off-by: Yao Zi <ziyao@...root.org>
> > ---
> > .../rockchip/phy-rockchip-naneng-combphy.c | 180 +++++++++++++++++-
> > 1 file changed, 179 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
> > index 1d1c7723584b..7c92f7ac3c7f 100644
> > --- a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
> > +++ b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
> > @@ -20,7 +20,40 @@
> > #define REF_CLOCK_25MHz (25 * HZ_PER_MHZ)
> > #define REF_CLOCK_100MHz (100 * HZ_PER_MHZ)
> >
> > -/* COMBO PHY REG */
> > +/* RK3528 COMBO PHY REG */
> > +#define RK3528_PHYREG6 0x18
> > +#define RK3528_PHYREG6_PLL_KVCO GENMASK(12, 10)
> > +#define RK3528_PHYREG6_PLL_KVCO_VALUE 0x2
> > +#define RK3528_PHYREG6_SSC_DIR GENMASK(5, 4)
> > +#define RK3528_PHYREG6_SSC_UPWARD 0
> > +#define RK3528_PHYREG6_SSC_DOWNWARD 1
> > +#define RK3528_PHYREG40 0x100
> > +#define RK3528_PHYREG40_SSC_EN BIT(20)
> > +#define RK3528_PHYREG40_SSC_CNT GENMASK(10, 0)
> > +#define RK3528_PHYREG40_SSC_CNT_VALUE 0x17d
> > +#define RK3528_PHYREG42 0x108
> > +#define RK3528_PHYREG42_CKDRV_CLK_SEL BIT(29)
> > +#define RK3528_PHYREG42_CKDRV_CLK_PLL 0
> > +#define RK3528_PHYREG42_CKDRV_CLK_CKRCV 1
> > +#define RK3528_PHYREG42_PLL_LPF_R1_ADJ GENMASK(10, 7)
> > +#define RK3528_PHYREG42_PLL_LPF_R1_ADJ_VALUE 0x9
> > +#define RK3528_PHYREG42_PLL_CHGPUMP_CUR_ADJ GENMASK(6, 4)
> > +#define RK3528_PHYREG42_PLL_CHGPUMP_CUR_ADJ_VALUE 0x7
> > +#define RK3528_PHYREG42_PLL_KVCO_ADJ GENMASK(2, 0)
> > +#define RK3528_PHYREG42_PLL_KVCO_ADJ_VALUE 0x0
> > +#define RK3528_PHYREG80 0x200
> > +#define RK3528_PHYREG80_CTLE_EN BIT(17)
> > +#define RK3528_PHYREG81 0x204
> > +#define RK3528_PHYREG81_CDR_PHASE_PATH_GAIN_2X BIT(5)
> > +#define RK3528_PHYREG81_SLEW_RATE_CTRL GENMASK(2, 0)
> > +#define RK3528_PHYREG81_SLEW_RATE_CTRL_SLOW 0x7
> > +#define RK3528_PHYREG83 0x20c
> > +#define RK3528_PHYREG83_RX_SQUELCH GENMASK(2, 0)
> > +#define RK3528_PHYREG83_RX_SQUELCH_VALUE 0x6
> > +#define RK3528_PHYREG86 0x218
> > +#define RK3528_PHYREG86_RTERM_DET_CLK_EN BIT(14)
>
> I'd think staying with one layout would be best, so not doing this
> indentation here. Instead maybe follow the other ones like
Though seems more clear, it's reasonable to keep the style consistent.
Will change it in v2, thanks.
> #define RK3528_PHYREG6 0x18
> #define RK3528_PHYREG6_PLL_KVCO GENMASK(12, 10)
> #define RK3528_PHYREG6_PLL_KVCO_VALUE 0x2
> #define RK3528_PHYREG6_SSC_DIR GENMASK(5, 4)
> #define RK3528_PHYREG6_SSC_UPWARD 0
> #define RK3528_PHYREG6_SSC_DOWNWARD 1
>
> #define RK3528_PHYREG40 0x100
> #define RK3528_PHYREG40_SSC_EN BIT(20)
> #define RK3528_PHYREG40_SSC_CNT GENMASK(10, 0)
> #define RK3528_PHYREG40_SSC_CNT_VALUE 0x17d
>
> ...
>
> i.e. register + bits + blank line
>
> other than that
>
> Reviewed-by: Heiko Stuebner <heiko@...ech.de>
>
>
Best regards,
Yao Zi
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