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From: Luca Weiss <luca@z3ntu.xyz>
To: ~postmarketos/upstreaming@lists.sr.ht,
	phone-devel@vger.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Sebastian Reichel <sre@kernel.org>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Brian Masney <masneyb@onstation.org>,
	Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH 4/4] ARM: dts: qcom: msm8974-hammerhead: Add vibrator
Date: Tue, 02 May 2023 17:28:53 +0200	[thread overview]
Message-ID: <112204300.nniJfEyVGO@z3ntu.xyz> (raw)
In-Reply-To: <fc22fd34-6cce-c175-d845-cf4435b4b0be@linaro.org>

On Dienstag, 2. Mai 2023 12:40:40 CEST Konrad Dybcio wrote:
> On 27.04.2023 22:34, Luca Weiss wrote:
> > The Nexus 5 has a vibrator connected to the clock output of GP1_CLK
> > which we can use with the clk-pwm driver, then we can use that pwm with
> > pwm-vibrator to get haptics functionality.
> > 
> > This patch is based on Brian Masney's previous patch with clk-vibrator.
> > 
> > Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
> > ---
> > 
> >  .../dts/qcom-msm8974-lge-nexus5-hammerhead.dts     | 35
> >  ++++++++++++++++++++++ 1 file changed, 35 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
> > b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts index
> > ab35f2d644c0..fea8a6be9021 100644
> > --- a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
> > +++ b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
> > @@ -41,6 +41,25 @@ key-volume-down {
> > 
> >  		};
> >  	
> >  	};
> > 
> > +	clk_pwm: pwm {
> > +		compatible = "clk-pwm";
> > +		clocks = <&mmcc CAMSS_GP1_CLK>;
> 
> Are you sure it's <&mmcc CAMSS_GP1_CLK> and not <&gcc GCC_GP1_CLK>?

Quite sure.

The driver uses:

	cam_gp1_clk = clk_get(&pdev->dev, "cam_gp1_clk");

and this comes from the clock-8974.c driver

	CLK_LOOKUP("cam_gp1_clk", camss_gp1_clk.c, "vibrator"),

Regards
Luca

> 
> Konrad
> 
> > +
> > +		pinctrl-0 = <&vibrator_pin>;
> > +		pinctrl-names = "default";
> > +
> > +		#pwm-cells = <2>;
> > +	};
> > +
> > +	vibrator {
> > +		compatible = "pwm-vibrator";
> > +		pwms = <&clk_pwm 0 100000>;
> > +		pwm-names = "enable";
> > +
> > +		vcc-supply = <&pm8941_l19>;
> > +		enable-gpios = <&tlmm 60 GPIO_ACTIVE_HIGH>;
> > +	};
> > +
> > 
> >  	vreg_wlan: wlan-regulator {
> >  	
> >  		compatible = "regulator-fixed";
> > 
> > @@ -637,6 +656,22 @@ shutdown-pins {
> > 
> >  			function = "gpio";
> >  		
> >  		};
> >  	
> >  	};
> > 
> > +
> > +	vibrator_pin: vibrator-state {
> > +		core-pins {
> > +			pins = "gpio27";
> > +			function = "gp1_clk";
> > +			drive-strength = <6>;
> > +			bias-disable;
> > +		};
> > +
> > +		enable-pins {
> > +			pins = "gpio60";
> > +			function = "gpio";
> > +			drive-strength = <2>;
> > +			bias-disable;
> > +		};
> > +	};
> > 
> >  };
> >  
> >  &usb {





  reply	other threads:[~2023-05-02 15:29 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-27 20:34 [PATCH 0/4] Add haptics support to Nexus 5 using pwm-vibra driver Luca Weiss
2023-04-27 20:34 ` [PATCH 1/4] dt-bindings: input: pwm-vibrator: Add enable-gpio Luca Weiss
2023-04-27 23:29   ` Brian Masney
2023-04-28 10:10   ` Caleb Connolly
2023-04-29 19:44   ` Sebastian Reichel
2023-05-01  6:48   ` Krzysztof Kozlowski
2023-04-27 20:34 ` [PATCH 2/4] Input: pwm-vibra - add newline to dev_err prints Luca Weiss
2023-04-27 23:30   ` Brian Masney
2023-04-28 10:10   ` Caleb Connolly
2023-04-29 19:45   ` Sebastian Reichel
2023-04-27 20:34 ` [PATCH 3/4] Input: pwm-vibra - add support for enable GPIO Luca Weiss
2023-04-27 23:29   ` Brian Masney
2023-04-28 16:06     ` Luca Weiss
2023-04-28 16:11       ` Brian Masney
2023-05-02 10:39       ` Konrad Dybcio
2023-05-02 15:24         ` Luca Weiss
2023-04-28 10:11   ` Caleb Connolly
2023-04-29 19:47   ` Sebastian Reichel
2023-05-02  0:47   ` Dmitry Torokhov
2023-05-02 15:35     ` Luca Weiss
2023-04-27 20:34 ` [PATCH 4/4] ARM: dts: qcom: msm8974-hammerhead: Add vibrator Luca Weiss
2023-04-27 23:34   ` Brian Masney
2023-04-28 10:11   ` Caleb Connolly
2023-05-02 10:40   ` Konrad Dybcio
2023-05-02 15:28     ` Luca Weiss [this message]
2023-05-02 15:31       ` Konrad Dybcio
2023-05-08 16:44 ` [PATCH 0/4] Add haptics support to Nexus 5 using pwm-vibra driver Dmitry Torokhov
2023-05-25  4:54 ` (subset) " Bjorn Andersson

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