linux-kernel - 答复: [PATCH] mfd: rtsx: Add support for RTS5260

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Date:   Thu, 14 Sep 2017 09:50:40 +0000
From:   冯锐 <rui_feng@...lsil.com.cn>
To:     Lee Jones <lee.jones@...aro.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: 答复: [PATCH] mfd: rtsx: Add support for RTS5260

On Fri, 08 Sep 2017, rui_feng@...lsil.com.cn wrote:

> From: rui_feng <rui_feng@...lsil.com.cn>
> 
> Add support for new chip rts5260.

You are adding over 600 lines in this patch.  It desearves a more forthcoming commit message.

What is it?
What functionality does it provide?
What other subsystems are involved?
Could it break something else?
Does it have any dependencies?
Etc etc.

> Signed-off-by: Rui Feng <rui_feng@...lsil.com.cn>
> ---
>  drivers/mfd/Makefile         |   2 +-
>  drivers/mfd/rts5260.c        | 543 +++++++++++++++++++++++++++++++++++++++++++
>  drivers/mfd/rtsx_pcr.c       |   8 +
>  drivers/mfd/rtsx_pcr.h       |   1 +
>  include/linux/mfd/rtsx_pci.h |  81 ++++++-
>  5 files changed, 631 insertions(+), 4 deletions(-)  create mode 
> 100644 drivers/mfd/rts5260.c
> 
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 
> 080793b..d0f06a3 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -17,7 +17,7 @@ obj-$(CONFIG_MFD_CROS_EC_I2C)	+= cros_ec_i2c.o
>  obj-$(CONFIG_MFD_CROS_EC_SPI)	+= cros_ec_spi.o
>  obj-$(CONFIG_MFD_EXYNOS_LPASS)	+= exynos-lpass.o
>  
> -rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o
> +rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o rts5260.o
>  obj-$(CONFIG_MFD_RTSX_PCI)	+= rtsx_pci.o
>  obj-$(CONFIG_MFD_RTSX_USB)	+= rtsx_usb.o
>  
> diff --git a/drivers/mfd/rts5260.c b/drivers/mfd/rts5260.c new file 
> mode 100644 index 0000000..53f2838
> --- /dev/null
> +++ b/drivers/mfd/rts5260.c

There is way too much code in this file to be an MFD driver.

It's a card reader driver (as stated below).

I think this entire file needs relocating somewhere else.

Many other drivers, such as rts5209, rts5227, rts5229, rts5249 and so on, are in the same place.
If I put rts5260 somewhere else, other drivers should also be relocated, this will lead to a much bigger modification.
So I think put rts5260.c here is better suited.

> @@ -0,0 +1,543 @@
> +/* Driver for Realtek PCI-Express card reader
> + *
> + * Copyright(c) 2016-2017 Realtek Semiconductor Corp. All rights reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2, or (at your option) any
> + * later version.
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, see <http://www.gnu.org/licenses/>.
> + *
> + * Author:
> + *   Steven FENG <steven_feng@...lsil.com.cn>
> + *   Rui FENG <rui_feng@...lsil.com.cn>
> + *   Wei WANG <wei_wang@...lsil.com.cn>
> + */

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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