From: Geert Uytterhoeven <geert@linux-m68k.org>
To: songjun.wu@linux.intel.com
Cc: hua.ma@linux.intel.com, yixin.zhu@linux.intel.com,
chuanhua.lei@linux.intel.com, qi-ming.wu@intel.com,
Linux MIPS Mailing List <linux-mips@linux-mips.org>,
linux-clk <linux-clk@vger.kernel.org>,
"open list:SERIAL DRIVERS" <linux-serial@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Greg KH <gregkh@linuxfoundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Jiri Slaby <jslaby@suse.com>
Subject: Re: [PATCH v2 08/18] serial: intel: Get serial id from dts
Date: Tue, 7 Aug 2018 09:33:38 +0200 [thread overview]
Message-ID: <CAMuHMdXkGchPN337dXbBVOFsb1o-Tkh8S_z=uCm3Z0sDjPVMKA@mail.gmail.com> (raw)
In-Reply-To: <20180803030237.3366-9-songjun.wu@linux.intel.com>
Hi Songjun,
On Fri, Aug 3, 2018 at 5:04 AM Songjun Wu <songjun.wu@linux.intel.com> wrote:
> Get serial id from dts.
>
> "#ifdef CONFIG_LANTIQ" preprocessor is used because LTQ_EARLY_ASC
> macro is defined in lantiq_soc.h.
> lantiq_soc.h is in arch path for legacy product support.
>
> arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
>
> If "#ifdef preprocessor" is changed to
> "if (IS_ENABLED(CONFIG_LANTIQ))", when CONFIG_LANTIQ is not enabled,
> code using LTQ_EARLY_ASC is compiled.
> Compilation will fail for no LTQ_EARLY_ASC defined.
>
> Signed-off-by: Songjun Wu <songjun.wu@linux.intel.com>
Thanks for your patch!
> @@ -699,9 +700,19 @@ lqasc_probe(struct platform_device *pdev)
> return -ENODEV;
> }
>
> - /* check if this is the console port */
> - if (mmres->start != CPHYSADDR(LTQ_EARLY_ASC))
> - line = 1;
> + /* get serial id */
> + line = of_alias_get_id(node, "serial");
> + if (line < 0) {
> +#ifdef CONFIG_LANTIQ
> + if (mmres->start == CPHYSADDR(LTQ_EARLY_ASC))
> + line = 0;
> + else
> + line = 1;
> +#else
> + dev_err(&pdev->dev, "failed to get alias id, errno %d\n", line);
> + return line;
Please note that not providing a fallback here makes life harder when using
DT overlays.
See the description of commit 7678f4c20fa7670f ("serial: sh-sci: Add support
for dynamic instances") for background info.
> +#endif
> + }
>
> if (lqasc_port[line]) {
> dev_err(&pdev->dev, "port %d already allocated\n", line);
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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
next prev parent reply other threads:[~2018-08-07 7:33 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-03 3:02 [PATCH v2 00/18] MIPS: intel: add initial support for Intel MIPS SoCs Songjun Wu
2018-08-03 3:02 ` [PATCH v2 01/18] MIPS: intel: Add " Songjun Wu
2018-08-03 17:49 ` Paul Burton
2018-08-06 9:12 ` Hua Ma
2018-08-03 3:02 ` [PATCH v2 02/18] clk: intel: Add clock driver " Songjun Wu
2018-08-06 15:19 ` Rob Herring
2018-08-08 2:51 ` yixin zhu
2018-08-08 5:50 ` Stephen Boyd
2018-08-08 8:52 ` yixin zhu
2018-08-27 19:09 ` Stephen Boyd
2018-08-29 6:56 ` Zhu, Yi Xin
2018-08-31 17:10 ` Stephen Boyd
2018-09-03 10:47 ` Zhu, Yi Xin
2018-08-29 10:34 ` Zhu, Yi Xin
2018-08-31 17:13 ` Stephen Boyd
2018-09-03 10:52 ` Zhu, Yi Xin
2018-08-03 3:02 ` [PATCH v2 03/18] dt-bindings: clk: Add documentation of grx500 clock controller Songjun Wu
2018-08-06 15:18 ` Rob Herring
2018-08-08 3:08 ` yixin zhu
2018-08-08 14:54 ` Rob Herring
2018-08-03 3:02 ` [PATCH v2 04/18] MIPS: dts: Add initial support for Intel MIPS SoCs Songjun Wu
2018-08-04 11:11 ` Hauke Mehrtens
2018-08-06 9:20 ` Hua Ma
2018-08-03 3:02 ` [PATCH v2 05/18] dt-binding: MIPS: Add documentation of " Songjun Wu
2018-08-06 15:16 ` Rob Herring
2018-08-03 3:02 ` [PATCH v2 06/18] MIPS: dts: Change upper case to lower case Songjun Wu
2018-08-06 15:14 ` Rob Herring
2018-08-03 3:02 ` [PATCH v2 07/18] MIPS: dts: Add aliases node for lantiq danube serial Songjun Wu
2018-08-03 3:02 ` [PATCH v2 08/18] serial: intel: Get serial id from dts Songjun Wu
2018-08-03 5:43 ` Greg Kroah-Hartman
2018-08-06 9:32 ` Wu, Songjun
2018-08-07 7:33 ` Geert Uytterhoeven [this message]
2018-08-08 4:05 ` Wu, Songjun
2018-08-08 8:33 ` Geert Uytterhoeven
2018-08-10 8:13 ` Wu, Songjun
2018-08-03 3:02 ` [PATCH v2 09/18] serial: intel: Change ltq_w32_mask to asc_update_bits Songjun Wu
2018-08-03 3:02 ` [PATCH v2 10/18] MIPS: lantiq: Unselect SWAP_IO_SPACE when LANTIQ is selected Songjun Wu
2018-08-03 3:02 ` [PATCH v2 11/18] serial: intel: Use readl/writel instead of ltq_r32/ltq_w32 Songjun Wu
2018-08-03 3:02 ` [PATCH v2 12/18] serial: intel: Rename fpiclk to freqclk Songjun Wu
2018-08-03 3:02 ` [PATCH v2 13/18] serial: intel: Replace clk_enable/clk_disable with clk generic API Songjun Wu
2018-08-03 3:02 ` [PATCH v2 14/18] serial: intel: Add CCF support Songjun Wu
2018-08-03 5:56 ` Greg Kroah-Hartman
2018-08-03 7:33 ` Wu, Songjun
2018-08-03 10:30 ` Greg Kroah-Hartman
2018-08-04 10:54 ` Hauke Mehrtens
2018-08-04 12:43 ` Greg Kroah-Hartman
2018-08-04 21:03 ` Arnd Bergmann
2018-08-06 7:05 ` Wu, Songjun
2018-08-06 7:20 ` Geert Uytterhoeven
2018-08-06 8:58 ` Wu, Songjun
2018-08-06 9:29 ` Geert Uytterhoeven
2018-08-07 7:18 ` Wu, Songjun
2018-08-07 7:33 ` Geert Uytterhoeven
2018-08-03 3:02 ` [PATCH v2 15/18] serial: intel: Support more platform Songjun Wu
2018-08-03 5:57 ` Greg Kroah-Hartman
2018-08-03 7:21 ` Wu, Songjun
2018-08-05 8:37 ` Christoph Hellwig
2018-08-06 7:20 ` Wu, Songjun
2018-08-03 3:02 ` [PATCH v2 16/18] serial: intel: Reorder the head files Songjun Wu
2018-08-03 3:02 ` [PATCH v2 17/18] serial: intel: Change init_lqasc to static declaration Songjun Wu
2018-08-03 3:02 ` [PATCH v2 18/18] dt-bindings: serial: lantiq: Add optional properties for CCF Songjun Wu
2018-08-13 17:53 ` Rob Herring
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAMuHMdXkGchPN337dXbBVOFsb1o-Tkh8S_z=uCm3Z0sDjPVMKA@mail.gmail.com' \
--to=geert@linux-m68k.org \
--cc=chuanhua.lei@linux.intel.com \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=hua.ma@linux.intel.com \
--cc=jslaby@suse.com \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@linux-mips.org \
--cc=linux-serial@vger.kernel.org \
--cc=qi-ming.wu@intel.com \
--cc=songjun.wu@linux.intel.com \
--cc=yixin.zhu@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).