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rt2800pci: fix comment about register access

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Registers used for indirect BBP and RF registers access are
respectively BBPCSR and RFCSR, also make it clear that all CSR
registers access goes through rt2x00pci_register_[read,write]()
methods.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-11-04 18:32:32 +01:00 committed by John W. Linville
parent f644fea1a8
commit 8807bb8cdd
1 changed files with 3 additions and 1 deletions
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4
drivers/net/wireless/rt2x00/rt2800pci.c
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@ -56,8 +56,10 @@ MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
/*
* Register access.
* All access to the CSR registers will go through the methods
* rt2x00pci_register_read and rt2x00pci_register_write.
* BBP and RF register require indirect register access,
* and use the CSR registers PHY_CSR3 and PHY_CSR4 to achieve this.
* and use the CSR registers BBPCSR and RFCSR to achieve this.
* These indirect registers work with busy bits,
* and we will try maximal REGISTER_BUSY_COUNT times to access
* the register while taking a REGISTER_BUSY_DELAY us delay