Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1553795

Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node

Show all headers | View raw

Hi Chanwoo,

> >> >> >>> +       touchkey@20 {
> >> >> >>> +               compatible = "samsung,tm2-touchkey";
> >> >> >>> +               reg = <0x20>;
> >> >> >>> +               interrupt-parent = <&gpa3>;
> >> >> >>> +               interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
> >> >> >>> +               vcc-supply = <&ldo32_reg>;
> >> >> >>> +               vdd-supply = <&ldo33_reg>;
> >> >> >>> +       };
> >> >> >>> +};
> >> >> >>> +
> >> >> >>>  &ldo31_reg {
> >> >> >>>         regulator-name = "TSP_VDD_1.85V_AP";
> >> >> >>>         regulator-min-microvolt = <1850000>;
> >> >>
> >> >> I repiled the touchkey driver against compatible name.
> >> >> Usually, when developing the device driver, we use the specific h/w name
> >> >> but in this patch, the touckey dt node uses the h/w board name instead of
> >> >> original touckhey name.
> >> >
> >> > this should be a device specifically done for the tm2 and we are
> >> > not sure who is the manufacturer of the device. In order to not
> >>
> >> As I knew, this touchkey was made by Cypress semiconductor.
> >> But, for more correct information, you may try to find it.
> >
> > The Android Kernel says that this is the cy8cmbr3xxx. I
> > downloaded the datasheets, but it doesn't have any similarity
> > with the device. Which means that on tm2 we don't the
> > cy8cmbr3xxx bot something else that I even doubt comes from
> > cypress, but I strongly believe it's a dedicated hardware.
> 
> Although this device is a dedicated h/w, you should keep the principal.
> Did you check the schematic document of TM2? The schematic document
> might include the specific device name.
> 
> Sometimes, the downloaded datasheet does not include the
> all of information of device because of confidential information.
> But, I’m not sure. Just it is guess as my experience.
> 
> I want to check the manufacturer and name of device with you
> on next Monday.

Yes, I checked everything, but didn't find the exact device name.

Anyway, let's take this discussion offline and find the correct
way.

Andi

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH v5 0/5] Add touch key driver support for TM2 Andi Shyti <andi.shyti@samsung.com> - 2017-01-06 14:50 +0100
  [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Andi Shyti <andi.shyti@samsung.com> - 2017-01-06 14:50 +0100
    Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Krzysztof Kozlowski <krzk@kernel.org> - 2017-01-06 15:10 +0100
    Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Chanwoo Choi <cwchoi00@gmail.com> - 2017-01-06 22:40 +0100
      Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Chanwoo Choi <cwchoi00@gmail.com> - 2017-01-06 23:20 +0100
        Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Andi Shyti <andi@etezian.org> - 2017-01-07 13:50 +0100
          Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Chanwoo Choi <cwchoi00@gmail.com> - 2017-01-08 06:20 +0100
            Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Andi Shyti <andi@etezian.org> - 2017-01-08 06:50 +0100
              Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Chanwoo Choi <cwchoi00@gmail.com> - 2017-01-08 07:10 +0100
                Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Andi Shyti <andi@smida.it> - 2017-01-08 07:20 +0100
      Re: [PATCH v5 5/5] arm64: dts: exynos: Add tm2 touchkey node Chanwoo Choi <cwchoi00@gmail.com> - 2017-01-06 23:20 +0100
  [PATCH v5 1/5] arm64: dts: exynos5433: TM2/E: Fix wrong values for  ldo23 and ldo25 Andi Shyti <andi.shyti@samsung.com> - 2017-01-06 14:50 +0100
    Re: [PATCH v5 1/5] arm64: dts: exynos5433: TM2/E: Fix wrong values  for ldo23 and ldo25 Krzysztof Kozlowski <krzk@kernel.org> - 2017-01-06 15:10 +0100
  [PATCH v5 2/5] arm64: dts: exynos: make tm2 and tm2e independent from  each other Andi Shyti <andi.shyti@samsung.com> - 2017-01-06 14:50 +0100
    Re: [PATCH v5 2/5] arm64: dts: exynos: make tm2 and tm2e independent  from each other Andi Shyti <andi.shyti@samsung.com> - 2017-01-06 15:00 +0100
      Re: [PATCH v5 2/5] arm64: dts: exynos: make tm2 and tm2e independent  from each other Krzysztof Kozlowski <krzk@kernel.org> - 2017-01-06 15:20 +0100
    Re: [PATCH v5 2/5] arm64: dts: exynos: make tm2 and tm2e independent  from each other Krzysztof Kozlowski <krzk@kernel.org> - 2017-01-06 15:00 +0100
      Re: [PATCH v5 2/5] arm64: dts: exynos: make tm2 and tm2e independent  from each other Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-06 15:20 +0100
    Re: [PATCH v5 2/5] arm64: dts: exynos: make tm2 and tm2e independent  from each other Chanwoo Choi <cwchoi00@gmail.com> - 2017-01-06 22:30 +0100

csiph-web