linux-kernel - Re: [RESEND PATCH v2 8/9] mfd: rtsx: add support for rts525A

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Message-ID: <20150216143703.GN14545@x1>
Date:	Mon, 16 Feb 2015 14:37:03 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	micky_ching@...lsil.com.cn
Cc:	sameo@...ux.intel.com, devel@...uxdriverproject.org,
	linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
	rogerable@...ltek.com, wei_wang@...lsil.com.cn
Subject: Re: [RESEND PATCH v2 8/9] mfd: rtsx: add support for rts525A

On Thu, 22 Jan 2015, micky_ching@...lsil.com.cn wrote:

> From: Micky Ching <micky_ching@...lsil.com.cn>
> 
> add support for new chip rts525A.
> 
> Signed-off-by: Micky Ching <micky_ching@...lsil.com.cn>
> ---
>  drivers/mfd/rts5249.c        | 104 ++++++++++++++++++++++++++++++++++++++++++-
>  drivers/mfd/rtsx_pcr.c       |  13 ++++--
>  drivers/mfd/rtsx_pcr.h       |   1 +
>  include/linux/mfd/rtsx_pci.h |  15 +++++++
>  4 files changed, 129 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
> index 97dde92..134e03f 100644
> --- a/drivers/mfd/rts5249.c
> +++ b/drivers/mfd/rts5249.c
> @@ -97,7 +97,7 @@ static void rtsx_base_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
>  	rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
>  
>  	if (pm_state == HOST_ENTER_S3) {
> -		if (PCI_PID(pcr) == 0x524A)
> +		if (PCI_PID(pcr) == 0x524A || PCI_PID(pcr) == 0x525A)

Please consider holding a pm_ctrl_reg attribute in the device data
structure, then only doing this once during initialisation.

Other than that, I have the same comments as before.

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