Messages in this thread | | | From | 敬锐 <> | Subject | Re: [PATCH v4 1/6] mfd: rtsx: add func to split u32 into register | Date | Mon, 8 Dec 2014 09:49:29 +0000 |
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On 12/08/2014 04:49 PM, Lee Jones wrote: >> 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 > This is a different format at the others in the group on two counts; > firstly you have 3 whitespace characters after the #define and > secondly all of the other hex digits in the set are 4 a breast. > Please add the leading zeros to conform to this format. > Hi lee,
This format is more readable, add 2 space means this value is in groups under register SD_CMD0, and each register value is u8 type, so use 2 hex digits is right.
The original file make register address and its related value separated, and group register together.
But I like to write register address and value together, add 2 space for value to indicate this value is related to above register.
If we add new address/value, I recommend write register define format as below:
#define REGISTER addr #define REG_VAL1 val1 #define REG_VAL2 val2
regards. micky.
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