linux-kernel - RE: [PATCH 6/7] serial: xilinx_uartps: Add new compatible string for StarFive

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Date:   Tue, 28 Nov 2023 05:25:40 +0000
From:   JeeHeng Sia <jeeheng.sia@...rfivetech.com>
To:     Krzysztof Kozlowski <krzk@...nel.org>,
        "paul.walmsley@...ive.com" <paul.walmsley@...ive.com>,
        "palmer@...belt.com" <palmer@...belt.com>,
        "aou@...s.berkeley.edu" <aou@...s.berkeley.edu>,
        "conor@...nel.org" <conor@...nel.org>,
        "kernel@...il.dk" <kernel@...il.dk>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "emil.renner.berthing@...onical.com" 
        <emil.renner.berthing@...onical.com>
CC:     "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Leyfoon Tan <leyfoon.tan@...rfivetech.com>
Subject: RE: [PATCH 6/7] serial: xilinx_uartps: Add new compatible string for
 StarFive



> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: Monday, November 27, 2023 4:49 PM
> To: JeeHeng Sia <jeeheng.sia@...rfivetech.com>; paul.walmsley@...ive.com; palmer@...belt.com; aou@...s.berkeley.edu;
> conor@...nel.org; kernel@...il.dk; robh+dt@...nel.org; emil.renner.berthing@...onical.com
> Cc: linux-riscv@...ts.infradead.org; linux-kernel@...r.kernel.org; Leyfoon Tan <leyfoon.tan@...rfivetech.com>
> Subject: Re: [PATCH 6/7] serial: xilinx_uartps: Add new compatible string for StarFive
> 
> On 27/11/2023 02:36, Sia Jee Heng wrote:
> > This patch adds the new compatible string for StarFive JH8100 SoC
> >
> > Signed-off-by: Sia Jee Heng <jeeheng.sia@...rfivetech.com>
> > Reviewed-by: Ley Foon Tan <leyfoon.tan@...rfivetech.com>
> > ---
> >  drivers/tty/serial/xilinx_uartps.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
> > index 66a45a634158..170901c143c2 100644
> > --- a/drivers/tty/serial/xilinx_uartps.c
> > +++ b/drivers/tty/serial/xilinx_uartps.c
> > @@ -1210,7 +1210,7 @@ OF_EARLYCON_DECLARE(cdns, "xlnx,xuartps", cdns_early_console_setup);
> >  OF_EARLYCON_DECLARE(cdns, "cdns,uart-r1p8", cdns_early_console_setup);
> >  OF_EARLYCON_DECLARE(cdns, "cdns,uart-r1p12", cdns_early_console_setup);
> >  OF_EARLYCON_DECLARE(cdns, "xlnx,zynqmp-uart", cdns_early_console_setup);
> > -
> > +OF_EARLYCON_DECLARE(cdns, "starfive,jh8100-uart", cdns_early_console_setup);
> >
> >  /* Static pointer to console port */
> >  static struct uart_port *console_port;
> > @@ -1448,6 +1448,7 @@ static const struct of_device_id cdns_uart_of_match[] = {
> >  	{ .compatible = "cdns,uart-r1p8", },
> >  	{ .compatible = "cdns,uart-r1p12", .data = &zynqmp_uart_def },
> >  	{ .compatible = "xlnx,zynqmp-uart", .data = &zynqmp_uart_def },
> > +	{ .compatible = "starfive,jh8100-uart", },
> 
> Why you do not express compatibility in your bindings? Skip this driver
> change.
The compatibility string was added to the binding in the 5th patch. We need to add this compatibility string to the driver, as the other compatibilities were used for other SoCs.
> 
> Best regards,
> Krzysztof