Re: [PATCH v2 1/3] dt/binding: ti-tsc-adc: deprecate ti,charge-delay and add binding doc for ti,charge-delay-ns

From	Rob Herring <robh@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 1/3] dt/binding: ti-tsc-adc: deprecate ti,charge-delay and add binding doc for ti,charge-delay-ns
Date	2016-11-15 03:00 +0100
Message-ID	<sDBcu-6Lx-13@gated-at.bofh.it> (permalink)
References	<sC0I1-h7-3@gated-at.bofh.it> <sC278-1l5-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu, Nov 10, 2016 at 10:05:13PM +0530, Mugunthan V N wrote:
> ti,charge-delay represents the duration that ADC should wait
> before sampling the ADC line to detect the touch location and pen
> up/downs. Currently the ADC clock is set at 3MHz. The device-tree
> entry for ti,charge-delay is based on assumption of ADC clock at
> 3MHz, but it can be operated up to 24MHz clock. Representing the
> charge delay of touchscreen in terms of ADC clocks is incorrect.
> So change this representation to ti,charge-delay-ns, which driver
> can convert it to number clock cycles based on ref clock
> frequency.
> 
> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
> ---
>  .../bindings/input/touchscreen/ti-tsc-adc.txt      | 32 ++++++++++++++--------
>  1 file changed, 21 insertions(+), 11 deletions(-)

Acked-by: Rob Herring <robh@kernel.org>

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Re: [PATCH v2 1/3] dt/binding: ti-tsc-adc: deprecate ti,charge-delay  and add binding doc for ti,charge-delay-ns Rob Herring <robh@kernel.org> - 2016-11-15 03:00 +0100

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