linux-kernel - Re: [PATCH 02/08] clocksource: sh_cmt: Use 0x3f mask for SH_CMT

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Message-ID: <CAMuHMdVgEh3d_OU1NVTHuP2gYrHf6mj36FQaTjMKBzqn6JA_cw@mail.gmail.com>
Date:	Mon, 22 Jun 2015 11:43:17 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Magnus Damm <magnus.damm@...il.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Linux-sh list <linux-sh@...r.kernel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Simon Horman <horms+renesas@...ge.net.au>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 02/08] clocksource: sh_cmt: Use 0x3f mask for SH_CMT_48BIT case

On Sun, Jun 21, 2015 at 10:09 AM, Magnus Damm <magnus.damm@...il.com> wrote:
> From: Magnus Damm <damm+renesas@...nsource.se>
>
> Always use 0x3f as channel mask for the SH_CMT_48BIT type of devices.
> Once this patch is applied the "renesas,channels-mask" property will
> be ignored by the driver for older devices matching SH_CMT_48BIT. In
> the future when all CMT types store channel mask in the driver then
> we will be able to deprecate and remove "renesas,channels-mask" from DTS.
>
> Signed-off-by: Magnus Damm <damm+renesas@...nsource.se>
> ---
>
>  drivers/clocksource/sh_cmt.c |   14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
>
> --- 0001/drivers/clocksource/sh_cmt.c
> +++ work/drivers/clocksource/sh_cmt.c   2015-06-20 15:25:54.302366518 +0900

> @@ -969,9 +972,14 @@ static int sh_cmt_setup(struct sh_cmt_de
>                 id = of_match_node(sh_cmt_of_table, pdev->dev.of_node);
>                 cmt->info = id->data;
>
> -               ret = sh_cmt_parse_dt(cmt);
> -               if (ret < 0)
> -                       return ret;
> +               /* prefer in-driver channel configuration over DT */
> +               if (cmt->info->channels_mask) {
> +                       cmt->hw_channels = cmt->info_channels_mask;

drivers/clocksource/sh_cmt.c: In function 'sh_cmt_setup':
drivers/clocksource/sh_cmt.c:996:26: error: 'struct sh_cmt_device' has
no member named 'info_channels_mask'
    cmt->hw_channels = cmt->info_channels_mask;
                          ^

"cmt->info->channels_mask"

> +               } else {
> +                       ret = sh_cmt_parse_dt(cmt);
> +                       if (ret < 0)
> +                               return ret;
> +               }

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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