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[2a02:8389:41cf:e200:2c0f:6313:4446:a47]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3679c9008b0sm1194575f8f.80.2024.07.04.02.03.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 04 Jul 2024 02:03:02 -0700 (PDT) Message-ID: Date: Thu, 4 Jul 2024 11:03:00 +0200 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: Matti Vaittinen , 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> <0acd9da5-80ec-4a45-b00a-8e28ab4e345a@gmail.com> Content-Language: en-US, de-AT From: Javier Carrasco In-Reply-To: <0acd9da5-80ec-4a45-b00a-8e28ab4e345a@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 04/07/2024 06:50, Matti Vaittinen wrote: > 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 > Sure, I will generalize it and update the series to cover regmap_irq and regmap_irq_chip as well, of course including these two cases too. Best regards, Javier Carrasco