linux-kernel - Re: [PATCH v4 5/7] leds: rgb: leds-qcom-lpg: Update PMI632 lpg

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Message-ID: <ab237850-4724-48a8-bea8-f1287445358f@linaro.org>
Date:   Thu, 7 Sep 2023 22:26:25 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Anjelique Melendez <quic_amelende@...cinc.com>, pavel@....cz,
        lee@...nel.org, thierry.reding@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        agross@...nel.org, andersson@...nel.org
Cc:     luca.weiss@...rphone.com, u.kleine-koenig@...gutronix.de,
        quic_subbaram@...cinc.com, quic_gurus@...cinc.com,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-pwm@...r.kernel.org, kernel@...cinc.com
Subject: Re: [PATCH v4 5/7] leds: rgb: leds-qcom-lpg: Update PMI632 lpg_data
 to support PPG

On 7.09.2023 21:54, Anjelique Melendez wrote:
> 
> 
> On 8/30/2023 11:34 AM, Konrad Dybcio wrote:
>> On 30.08.2023 20:06, Anjelique Melendez wrote:
>>> Update the pmi632 lpg_data struct so that pmi632 devices use PPG
>>> for LUT pattern.
>>>
>>> Signed-off-by: Anjelique Melendez <quic_amelende@...cinc.com>
>>> ---
>>>  drivers/leds/rgb/leds-qcom-lpg.c | 9 ++++++---
>>>  1 file changed, 6 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/drivers/leds/rgb/leds-qcom-lpg.c b/drivers/leds/rgb/leds-qcom-lpg.c
>>> index 90dc27d5eb7c..0b37d3b539f8 100644
>>> --- a/drivers/leds/rgb/leds-qcom-lpg.c
>>> +++ b/drivers/leds/rgb/leds-qcom-lpg.c
>>> @@ -1672,11 +1672,14 @@ static const struct lpg_data pm8994_lpg_data = {
>>>  static const struct lpg_data pmi632_lpg_data = {
>>>  	.triled_base = 0xd000,
>>>  
>>> +	.lut_size = 64,
>>> +	.lut_sdam_base = 0x80,
>> Is that a predefined space for use with LPG?
>>
>> Or can it be reclaimed for something else?
>>
>> Konrad
> Yes, this is a predefined space for use with LPG
We represent the SDAM as a NVMEM device, generally it would
be nice to add all regions within it as subnodes in the devicetree.

Krzysztof, opinions?

Konrad