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([2a10:a5c0:800d:dd00:8cfe:d6e7:6701:9dfd]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-2ee871e7a66sm3138181fa.82.2024.07.03.21.50.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 03 Jul 2024 21:50:07 -0700 (PDT) Message-ID: <0acd9da5-80ec-4a45-b00a-8e28ab4e345a@gmail.com> Date: Thu, 4 Jul 2024 07:50:05 +0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 6/7] mfd: rohm-bd9576: Constify struct regmap_config To: Javier Carrasco , Support Opensource , Lee Jones , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Xu Yilun , Tom Rix Cc: linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org References: <20240703-mfd-const-regmap_config-v1-0-aa6cd00a03bd@gmail.com> <20240703-mfd-const-regmap_config-v1-6-aa6cd00a03bd@gmail.com> Content-Language: en-US, en-GB From: Matti Vaittinen In-Reply-To: <20240703-mfd-const-regmap_config-v1-6-aa6cd00a03bd@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/3/24 18:37, Javier Carrasco wrote: > `bd957x_regmap` is not modified and can be declared as const > to move its data to a read-only section. > > Signed-off-by: Javier Carrasco > --- > drivers/mfd/rohm-bd9576.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mfd/rohm-bd9576.c b/drivers/mfd/rohm-bd9576.c > index 3a9f61961721..634c65c7d108 100644 > --- a/drivers/mfd/rohm-bd9576.c > +++ b/drivers/mfd/rohm-bd9576.c > @@ -57,7 +57,7 @@ static const struct regmap_access_table volatile_regs = { > .n_yes_ranges = ARRAY_SIZE(volatile_ranges), > }; > > -static struct regmap_config bd957x_regmap = { > +static const struct regmap_config bd957x_regmap = { > .reg_bits = 8, > .val_bits = 8, > .volatile_table = &volatile_regs, > Thanks a ton Javier. This looks good to me but if you feel like going an extra mile while you are at it... Do you think this could be extended to: diff --git a/drivers/mfd/rohm-bd9576.c b/drivers/mfd/rohm-bd9576.c index 3a9f61961721..17323ae39803 100644 --- a/drivers/mfd/rohm-bd9576.c +++ b/drivers/mfd/rohm-bd9576.c @@ -57,7 +57,7 @@ static const struct regmap_access_table volatile_regs = { .n_yes_ranges = ARRAY_SIZE(volatile_ranges), }; -static struct regmap_config bd957x_regmap = { +static const struct regmap_config bd957x_regmap = { .reg_bits = 8, .val_bits = 8, .volatile_table = &volatile_regs, @@ -65,7 +65,7 @@ static struct regmap_config bd957x_regmap = { .cache_type = REGCACHE_MAPLE, }; -static struct regmap_irq bd9576_irqs[] = { +static const struct regmap_irq bd9576_irqs[] = { REGMAP_IRQ_REG(BD9576_INT_THERM, 0, BD957X_MASK_INT_MAIN_THERM), REGMAP_IRQ_REG(BD9576_INT_OVP, 0, BD957X_MASK_INT_MAIN_OVP), REGMAP_IRQ_REG(BD9576_INT_SCP, 0, BD957X_MASK_INT_MAIN_SCP), @@ -76,7 +76,7 @@ static struct regmap_irq bd9576_irqs[] = { REGMAP_IRQ_REG(BD9576_INT_SYS, 0, BD957X_MASK_INT_MAIN_SYS), }; -static struct regmap_irq_chip bd9576_irq_chip = { +static const struct regmap_irq_chip bd9576_irq_chip = { .name = "bd9576_irq", .irqs = &bd9576_irqs[0], .num_irqs = ARRAY_SIZE(bd9576_irqs), Yours, -- Matti -- Matti Vaittinen Linux kernel developer at ROHM Semiconductors Oulu Finland ~~ When things go utterly wrong vim users can always type :help! ~~