From: Jiri Slaby <jslaby@suse.cz>
To: Hyunki Koo <hyunki00.koo@samsung.com>,
Kukjin Kim <kgene@kernel.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-serial@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v10 3/3] tty: samsung_tty: 32-bit access for TX/RX hold registers
Date: Tue, 19 May 2020 07:55:15 +0200 [thread overview]
Message-ID: <1d84cbc4-7935-a7b6-aec2-2ce351f203cd@suse.cz> (raw)
In-Reply-To: <20200506080242.18623-3-hyunki00.koo@samsung.com>
On 06. 05. 20, 10:02, Hyunki Koo wrote:
> Support 32-bit access for the TX/RX hold registers UTXH and URXH.
>
> This is required for some newer SoCs.
>
> Signed-off-by: Hyunki Koo <hyunki00.koo@samsung.com>
> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
> Tested on Odroid HC1 (Exynos5422):
> Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
> ---
> drivers/tty/serial/samsung_tty.c | 62 ++++++++++++++++++++++++++++++++++++----
> 1 file changed, 57 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
> index 326b0164609c..6ef614d8648c 100644
> --- a/drivers/tty/serial/samsung_tty.c
> +++ b/drivers/tty/serial/samsung_tty.c
...
> @@ -2000,10 +2023,27 @@ static int s3c24xx_serial_probe(struct platform_device *pdev)
> dev_get_platdata(&pdev->dev) :
> ourport->drv_data->def_cfg;
>
> - if (np)
> + if (np) {
> of_property_read_u32(np,
> "samsung,uart-fifosize", &ourport->port.fifosize);
>
> + if (of_property_read_u32(np, "reg-io-width", &prop) == 0) {
> + switch (prop) {
> + case 1:
> + ourport->port.iotype = UPIO_MEM;
> + break;
> + case 4:
> + ourport->port.iotype = UPIO_MEM32;
> + break;
> + default:
> + dev_warn(&pdev->dev, "unsupported reg-io-width (%d)\n",
> + prop);
> + ret = -EINVAL;
> + break;
This ret value is unused. Did you intend to return here?
thanks,
--
js
suse labs
next prev parent reply other threads:[~2020-05-19 5:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200506080249epcas2p47ffb915f9c469d208224cbdecb2d723d@epcas2p4.samsung.com>
2020-05-06 8:02 ` [PATCH v10 1/3] serial: samsung: Replace rd_regb/wr_regb with rd_reg/wr_reg Hyunki Koo
[not found] ` <CGME20200506080255epcas2p2bbaae2e0f3fa181bafa5012f069200be@epcas2p2.samsung.com>
2020-05-06 8:02 ` [PATCH v10 2/3] dt-bindings: serial: Add reg-io-width compatible Hyunki Koo
[not found] ` <CGME20200506080258epcas2p4f242fb66a2145f76b0e108014ee351fb@epcas2p4.samsung.com>
2020-05-06 8:02 ` [PATCH v10 3/3] tty: samsung_tty: 32-bit access for TX/RX hold registers Hyunki Koo
2020-05-06 11:02 ` Bartlomiej Zolnierkiewicz
2020-05-06 23:05 ` Hyunki Koo
2020-05-19 5:55 ` Jiri Slaby [this message]
2023-11-30 10:19 ` Tudor Ambarus
2023-11-30 11:20 ` Youngmin Nam
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=1d84cbc4-7935-a7b6-aec2-2ce351f203cd@suse.cz \
--to=jslaby@suse.cz \
--cc=gregkh@linuxfoundation.org \
--cc=hyunki00.koo@samsung.com \
--cc=jslaby@suse.com \
--cc=kgene@kernel.org \
--cc=krzk@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-samsung-soc@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
/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).