From: khilman@baylibre.com (Kevin Hilman)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH 1/4] tty: serial: meson: allow baud-rates higher than 115200
Date: Wed, 18 Jan 2017 13:44:42 -0800 [thread overview]
Message-ID: <m2o9z4yred.fsf@baylibre.com> (raw)
In-Reply-To: <20170115223255.10350-2-martin.blumenstingl@googlemail.com> (Martin Blumenstingl's message of "Sun, 15 Jan 2017 23:32:52 +0100")
Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:
> The vendor driver allows setting baud-rates higher than 115200 baud.
> There is a check in the vendor driver which prevents using more than
> 115200 baud during startup, however it does not have such a check in
> .set_termios.
> Higher baud-rates are often used by the bluetooth modules embedded into
> the SDIO wifi chips (Amlogic devices use brcmfmac based wifi chips quite
> often, 2000000 baud seems to be a common value for the UART baud-rate in
> Amlogic's "libbt").
>
> I have tested this on a Meson GXL device with uart_A (to which the
> bluetooth module is connected, where initialization times out with
> 115200 baud) and uart_AO (which I manually set to 2000000 baud and then
> connected with my USB UART adapter to that).
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
WARNING: multiple messages have this Message-ID (diff)
From: Kevin Hilman <khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
To: Martin Blumenstingl
<martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
Cc: linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-amlogic-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
jslaby-IBi9RG/b67k@public.gmane.org,
gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
carlo-KA+7E9HrN00dnm+yROfE0A@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
will.deacon-5wv7dgnIgG8@public.gmane.org,
catalin.marinas-5wv7dgnIgG8@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Subject: Re: [PATCH 1/4] tty: serial: meson: allow baud-rates higher than 115200
Date: Wed, 18 Jan 2017 13:44:42 -0800 [thread overview]
Message-ID: <m2o9z4yred.fsf@baylibre.com> (raw)
In-Reply-To: <20170115223255.10350-2-martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> (Martin Blumenstingl's message of "Sun, 15 Jan 2017 23:32:52 +0100")
Martin Blumenstingl <martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> writes:
> The vendor driver allows setting baud-rates higher than 115200 baud.
> There is a check in the vendor driver which prevents using more than
> 115200 baud during startup, however it does not have such a check in
> .set_termios.
> Higher baud-rates are often used by the bluetooth modules embedded into
> the SDIO wifi chips (Amlogic devices use brcmfmac based wifi chips quite
> often, 2000000 baud seems to be a common value for the UART baud-rate in
> Amlogic's "libbt").
>
> I have tested this on a Meson GXL device with uart_A (to which the
> bluetooth module is connected, where initialization times out with
> 115200 baud) and uart_AO (which I manually set to 2000000 baud and then
> connected with my USB UART adapter to that).
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
Acked-by: Kevin Hilman <khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
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WARNING: multiple messages have this Message-ID (diff)
From: khilman@baylibre.com (Kevin Hilman)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/4] tty: serial: meson: allow baud-rates higher than 115200
Date: Wed, 18 Jan 2017 13:44:42 -0800 [thread overview]
Message-ID: <m2o9z4yred.fsf@baylibre.com> (raw)
In-Reply-To: <20170115223255.10350-2-martin.blumenstingl@googlemail.com> (Martin Blumenstingl's message of "Sun, 15 Jan 2017 23:32:52 +0100")
Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:
> The vendor driver allows setting baud-rates higher than 115200 baud.
> There is a check in the vendor driver which prevents using more than
> 115200 baud during startup, however it does not have such a check in
> .set_termios.
> Higher baud-rates are often used by the bluetooth modules embedded into
> the SDIO wifi chips (Amlogic devices use brcmfmac based wifi chips quite
> often, 2000000 baud seems to be a common value for the UART baud-rate in
> Amlogic's "libbt").
>
> I have tested this on a Meson GXL device with uart_A (to which the
> bluetooth module is connected, where initialization times out with
> 115200 baud) and uart_AO (which I manually set to 2000000 baud and then
> connected with my USB UART adapter to that).
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
next prev parent reply other threads:[~2017-01-18 21:44 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-15 22:32 [PATCH 0/4] Bluetooth support for GXBB/GXL/GXM based devices Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:32 ` [PATCH 1/4] tty: serial: meson: allow baud-rates higher than 115200 Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:48 ` Andreas Färber
2017-01-15 22:48 ` Andreas Färber
2017-01-15 22:48 ` Andreas Färber
2017-01-18 21:44 ` Kevin Hilman [this message]
2017-01-18 21:44 ` Kevin Hilman
2017-01-18 21:44 ` Kevin Hilman
2017-01-15 22:32 ` [PATCH 2/4] ARM64: dts: meson-gx: add the serial CTS and RTS pin groups Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:50 ` Andreas Färber
2017-01-15 22:50 ` Andreas Färber
2017-01-15 22:50 ` Andreas Färber
2017-01-18 21:52 ` Kevin Hilman
2017-01-18 21:52 ` Kevin Hilman
2017-01-18 21:52 ` Kevin Hilman
2017-01-15 22:32 ` [PATCH 3/4] ARM64: dts: meson-gx-p23x-q20x: enable the Bluetooth module Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-16 0:47 ` Andreas Färber
2017-01-16 0:47 ` Andreas Färber
2017-01-16 0:47 ` Andreas Färber
2017-01-16 9:44 ` Martin Blumenstingl
2017-01-16 9:44 ` Martin Blumenstingl
2017-01-16 9:44 ` Martin Blumenstingl
2017-01-15 22:32 ` [PATCH 4/4] ARM64: dts: meson-gxbb-vega-s95: " Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:32 ` Martin Blumenstingl
2017-01-15 22:55 ` Andreas Färber
2017-01-15 22:55 ` Andreas Färber
2017-01-15 22:55 ` Andreas Färber
2017-01-18 11:25 ` [PATCH 0/4] Bluetooth support for GXBB/GXL/GXM based devices Martin Blumenstingl
2017-01-18 11:25 ` Martin Blumenstingl
2017-01-18 11:25 ` Martin Blumenstingl
2017-01-18 22:02 ` Kevin Hilman
2017-01-18 22:02 ` Kevin Hilman
2017-01-18 22:02 ` Kevin Hilman
2017-01-19 13:39 ` Greg KH
2017-01-19 13:39 ` Greg KH
2017-01-19 13:39 ` Greg KH
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