linux-kernel - Re: [PATCH v5 1/6] mfd: rtsx: add func to split u32 into register

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Date:	Tue, 20 Jan 2015 22:37:53 +0100
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	micky <micky_ching@...lsil.com.cn>, Chris Ball <chris@...ntf.net>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	"driverdev-devel@...uxdriverproject.org" 
	<devel@...uxdriverproject.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	Roger <rogerable@...ltek.com>, Wei WANG <wei_wang@...lsil.com.cn>
Subject: Re: [PATCH v5 1/6] mfd: rtsx: add func to split u32 into register

On 20 January 2015 at 15:47, Lee Jones <lee.jones@...aro.org> wrote:
> On Tue, 23 Dec 2014, micky_ching@...lsil.com.cn wrote:
>
>> From: Micky Ching <micky_ching@...lsil.com.cn>
>>
>> Add helper function to write u32 to registers, if we want to put u32
>> value to 4 continuous register, this can help us reduce tedious work.
>>
>> Signed-off-by: Micky Ching <micky_ching@...lsil.com.cn>
>> Acked-by: Lee Jones <lee.jones@...aro.org>
>> ---
>>  include/linux/mfd/rtsx_pci.h | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>
> Applied, thanks.

This one has already been queued by you, for 3.19, and it's in Linus tree. :-)

For your reference, I have queued the mmc patches which depends on
$subject patch for 3.20.

Kind regards
Uffe


>
>> diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
>> index 74346d5..9234449 100644
>> --- a/include/linux/mfd/rtsx_pci.h
>> +++ b/include/linux/mfd/rtsx_pci.h
>> @@ -558,6 +558,7 @@
>>  #define SD_SAMPLE_POINT_CTL          0xFDA7
>>  #define SD_PUSH_POINT_CTL            0xFDA8
>>  #define SD_CMD0                              0xFDA9
>> +#define   SD_CMD_START                       0x40
>>  #define SD_CMD1                              0xFDAA
>>  #define SD_CMD2                              0xFDAB
>>  #define SD_CMD3                              0xFDAC
>> @@ -967,4 +968,12 @@ static inline u8 *rtsx_pci_get_cmd_data(struct rtsx_pcr *pcr)
>>       return (u8 *)(pcr->host_cmds_ptr);
>>  }
>>
>> +static inline void rtsx_pci_write_be32(struct rtsx_pcr *pcr, u16 reg, u32 val)
>> +{
>> +     rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg,     0xFF, val >> 24);
>> +     rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 1, 0xFF, val >> 16);
>> +     rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 2, 0xFF, val >> 8);
>> +     rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 3, 0xFF, val);
>> +}
>> +
>>  #endif
>
> --
> Lee Jones
> Linaro STMicroelectronics Landing Team Lead
> Linaro.org │ Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog
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