Re: [PATCH v3 1/5] mfd/axp20x: rename files to support more devices

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On 12/09/14 00:15, Jacob Pan wrote:
> More XPowers PMIC devices can be supported by extending this driver, so
> rename it to axp2xx to cover axp288 variant.
> 
> Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>
> Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
I'm not sure this rename is a good idea (or the original wild
card was for that matter).

For example, just a quick look at the xpowers website shows there is a AXP228
which just got swept up by the name change.

Best plan, in my view, is to always name a driver after an individual part it
supports and rely on Kconfig description to say what else is supported.
Bit late here, but perhaps best not to make things worse!
> ---
>  drivers/mfd/Kconfig                      | 7 ++++---
>  drivers/mfd/Makefile                     | 2 +-
>  drivers/mfd/{axp20x.c => axp2xx.c}       | 6 +++---
>  include/linux/mfd/{axp20x.h => axp2xx.h} | 6 +++---
>  4 files changed, 11 insertions(+), 10 deletions(-)
>  rename drivers/mfd/{axp20x.c => axp2xx.c} (97%)
>  rename include/linux/mfd/{axp20x.h => axp2xx.h} (98%)
> 
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index de5abf2..42a70a3 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -67,14 +67,15 @@ config MFD_BCM590XX
>  	help
>  	  Support for the BCM590xx PMUs from Broadcom
>  
> -config MFD_AXP20X
> -	bool "X-Powers AXP20X"
> +config MFD_AXP2XX
> +	bool "X-Powers AXP2XX"
>  	select MFD_CORE
>  	select REGMAP_I2C
>  	select REGMAP_IRQ
>  	depends on I2C=y
>  	help
> -	  If you say Y here you get support for the X-Powers AXP202 and AXP209.
> +	  If you say Y here you get support for the X-Powers AXP202, AXP209 and
> +	  AXP288 power management IC (PMIC).
>  	  This driver include only the core APIs. You have to select individual
>  	  components like regulators or the PEK (Power Enable Key) under the
>  	  corresponding menus.
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index 3fcfdfc..8d0beb2 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -103,7 +103,7 @@ obj-$(CONFIG_PMIC_DA9052)	+= da9052-irq.o
>  obj-$(CONFIG_PMIC_DA9052)	+= da9052-core.o
>  obj-$(CONFIG_MFD_DA9052_SPI)	+= da9052-spi.o
>  obj-$(CONFIG_MFD_DA9052_I2C)	+= da9052-i2c.o
> -obj-$(CONFIG_MFD_AXP20X)	+= axp20x.o
> +obj-$(CONFIG_MFD_AXP2XX)	+= axp2xx.o
>  
>  obj-$(CONFIG_MFD_LP3943)	+= lp3943.o
>  obj-$(CONFIG_MFD_LP8788)	+= lp8788.o lp8788-irq.o
> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp2xx.c
> similarity index 97%
> rename from drivers/mfd/axp20x.c
> rename to drivers/mfd/axp2xx.c
> index dee6539..332a8a0 100644
> --- a/drivers/mfd/axp20x.c
> +++ b/drivers/mfd/axp2xx.c
> @@ -1,7 +1,7 @@
>  /*
> - * axp20x.c - MFD core driver for the X-Powers AXP202 and AXP209
> + * axp2xx.c - MFD core driver for the X-Powers AXP202 and AXP209
>   *
> - * AXP20x comprises an adaptive USB-Compatible PWM charger, 2 BUCK DC-DC
> + * AXP2xx comprises an adaptive USB-Compatible PWM charger, 2 BUCK DC-DC
>   * converters, 5 LDOs, multiple 12-bit ADCs of voltage, current and temperature
>   * as well as 4 configurable GPIOs.
>   *
> @@ -21,7 +21,7 @@
>  #include <linux/regmap.h>
>  #include <linux/slab.h>
>  #include <linux/regulator/consumer.h>
> -#include <linux/mfd/axp20x.h>
> +#include <linux/mfd/axp2xx.h>
>  #include <linux/mfd/core.h>
>  #include <linux/of_device.h>
>  #include <linux/of_irq.h>
> diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp2xx.h
> similarity index 98%
> rename from include/linux/mfd/axp20x.h
> rename to include/linux/mfd/axp2xx.h
> index d0e31a2..a36d91b 100644
> --- a/include/linux/mfd/axp20x.h
> +++ b/include/linux/mfd/axp2xx.h
> @@ -8,8 +8,8 @@
>   * published by the Free Software Foundation.
>   */
>  
> -#ifndef __LINUX_MFD_AXP20X_H
> -#define __LINUX_MFD_AXP20X_H
> +#ifndef __LINUX_MFD_AXP2XX_H
> +#define __LINUX_MFD_AXP2XX_H
>  
>  enum {
>  	AXP202_ID = 0,
> @@ -177,4 +177,4 @@ struct axp20x_dev {
>  	long				variant;
>  };
>  
> -#endif /* __LINUX_MFD_AXP20X_H */
> +#endif /* __LINUX_MFD_AXP2XX_H */
> 
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