From: Ondrej Jirman <megous@megous.com> To: linux-sunxi@googlegroups.com, Dmitry Torokhov <dmitry.torokhov@gmail.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org> Cc: Ondrej Jirman <megous@megous.com>, Luca Weiss <luca@z3ntu.xyz>, Tomas Novotny <tomas@novotny.cz>, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 3/4] ARM: dts: sun8i-a83t-tbs-a711: Add support for the vibrator motor Date: Wed, 13 May 2020 00:22:04 +0200 [thread overview] Message-ID: <20200512222205.1456300-4-megous@megous.com> (raw) In-Reply-To: <20200512222205.1456300-1-megous@megous.com> The board has a vibrator mottor. Hook it to the input subsystem. According to the PMIC specification, LDO needs to be enabled (value 0b11) to achieve the specified max driving current of 150mA. We can't drive the motor with just GPIO mode. In GPIO mode the chip is probably just using the regular CMOS logic output circuitry (typically limited to around 20-35mA, but not specified in this datasheet). Signed-off-by: Ondrej Jirman <megous@megous.com> --- arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts index bfc9bb277a49..a278a1e33930 100644 --- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts +++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts @@ -99,6 +99,11 @@ panel_input: endpoint { }; }; + vibrator { + compatible = "gpio-vibrator"; + vcc-supply = <®_ldo_io1>; + }; + reg_gps: reg-gps { compatible = "regulator-fixed"; regulator-name = "gps"; -- 2.26.2
WARNING: multiple messages have this Message-ID (diff)
From: Ondrej Jirman <megous@megous.com> To: linux-sunxi@googlegroups.com, Dmitry Torokhov <dmitry.torokhov@gmail.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org> Cc: Ondrej Jirman <megous@megous.com>, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Luca Weiss <luca@z3ntu.xyz>, Tomas Novotny <tomas@novotny.cz>, linux-input@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 3/4] ARM: dts: sun8i-a83t-tbs-a711: Add support for the vibrator motor Date: Wed, 13 May 2020 00:22:04 +0200 [thread overview] Message-ID: <20200512222205.1456300-4-megous@megous.com> (raw) In-Reply-To: <20200512222205.1456300-1-megous@megous.com> The board has a vibrator mottor. Hook it to the input subsystem. According to the PMIC specification, LDO needs to be enabled (value 0b11) to achieve the specified max driving current of 150mA. We can't drive the motor with just GPIO mode. In GPIO mode the chip is probably just using the regular CMOS logic output circuitry (typically limited to around 20-35mA, but not specified in this datasheet). Signed-off-by: Ondrej Jirman <megous@megous.com> --- arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts index bfc9bb277a49..a278a1e33930 100644 --- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts +++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts @@ -99,6 +99,11 @@ panel_input: endpoint { }; }; + vibrator { + compatible = "gpio-vibrator"; + vcc-supply = <®_ldo_io1>; + }; + reg_gps: reg-gps { compatible = "regulator-fixed"; regulator-name = "gps"; -- 2.26.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-05-12 22:22 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-12 22:22 [PATCH v2 0/4] Add support for vibrator motor for TBS A711 Tablet Ondrej Jirman 2020-05-12 22:22 ` Ondrej Jirman 2020-05-12 22:22 ` [PATCH v2 1/4] dt-bindings: input: gpio-vibrator: Don't require enable-gpios Ondrej Jirman 2020-05-12 22:22 ` Ondrej Jirman 2020-05-12 22:52 ` Dmitry Torokhov 2020-05-12 22:52 ` Dmitry Torokhov 2020-05-12 23:05 ` Ondřej Jirman 2020-05-12 23:05 ` Ondřej Jirman 2020-05-12 23:25 ` Dmitry Torokhov 2020-05-12 23:25 ` Dmitry Torokhov 2020-05-12 22:22 ` [PATCH v2 2/4] input: gpio-vibra: Allow to use vcc-supply alone to control the vibrator Ondrej Jirman 2020-05-12 22:22 ` Ondrej Jirman 2020-05-12 22:22 ` Ondrej Jirman [this message] 2020-05-12 22:22 ` [PATCH v2 3/4] ARM: dts: sun8i-a83t-tbs-a711: Add support for the vibrator motor Ondrej Jirman 2020-05-12 22:22 ` [PATCH v2 4/4] ARM: dts: sun8i-a83t-tbs-a711: Increase voltage on the vibrator Ondrej Jirman 2020-05-12 22:22 ` Ondrej Jirman
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=20200512222205.1456300-4-megous@megous.com \ --to=megous@megous.com \ --cc=devicetree@vger.kernel.org \ --cc=dmitry.torokhov@gmail.com \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-input@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-sunxi@googlegroups.com \ --cc=luca@z3ntu.xyz \ --cc=mark.rutland@arm.com \ --cc=mripard@kernel.org \ --cc=robh+dt@kernel.org \ --cc=tomas@novotny.cz \ --cc=wens@csie.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: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.