linux-kernel - Re: [PATCH] pinctrl: qcom: Add intr_target_width to define intr_target

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Message-ID: <760778dc-b0af-2adb-fa9e-4059a17a2cdf@quicinc.com>
Date:   Tue, 18 Jul 2023 10:38:53 +0530
From:   Ninad Naik <quic_ninanaik@...cinc.com>
To:     Bjorn Andersson <quic_bjorande@...cinc.com>,
        <konrad.dybcio@...aro.org>, <andersson@...nel.org>
CC:     <agross@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <quic_ppareek@...cinc.com>, <psodagud@...cinc.com>,
        <quic_kprasan@...cinc.com>
Subject: Re: [PATCH] pinctrl: qcom: Add intr_target_width to define
 intr_target_bit field width

Hi,

Thank you all for the reviews.

On 7/15/2023 2:08 AM, Bjorn Andersson wrote:
> On Fri, Jul 14, 2023 at 11:40:09AM +0530, Ninad Naik wrote:
>> SA8775 and newer target have added support for an increased number of
>> interrupt targets. To implement this change, the intr_target field, which
>> is used to configure the interrupt target in the interrupt configuration
>> register is increased from 3 bits to 4 bits.
>>
>> In accordance to these updates, a new intr_target_width member is
>> introduced in msm_pingroup structure. This member stores the value of
>> width of intr_target field in the interrupt configuration register. This
>> value is used to dynamically calculate and generate mask for setting the
>> intr_target field. By default, this mask is set to 3 bit wide, to ensure
>> backward compatibility with the older targets.
>>
>> Signed-off-by: Ninad Naik <quic_ninanaik@...cinc.com>
> 
> Very nice, Ninad.
> 
> Reviewed-by: Bjorn Andersson <quic_bjorande@...cinc.com>
> 
>> ---
>>   drivers/pinctrl/qcom/pinctrl-msm.c     | 9 ++++++---
>>   drivers/pinctrl/qcom/pinctrl-msm.h     | 2 ++
>>   drivers/pinctrl/qcom/pinctrl-sa8775p.c | 1 +
>>   3 files changed, 9 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
>> index 2585ef2b2793..6ebcaa2220af 100644
>> --- a/drivers/pinctrl/qcom/pinctrl-msm.c
>> +++ b/drivers/pinctrl/qcom/pinctrl-msm.c
>> @@ -1038,6 +1038,7 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type)
>>   	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
>>   	struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
>>   	const struct msm_pingroup *g;
>> +	u32 intr_target_mask = 0x7;
> 
> I like Konrad's suggestion about making this GENMASK(2, 0).
> 
> Please update that and include our R-b tags in v2.
> 
Sure, I'll change this to GENMASK and update all the relevant tags 
(Fixes and R-b) as suggested in the review comments.
> Regards,
> Bjorn

Thanks a lot!
Regards,
Ninad