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misc: rtsx: Find L1 PM Substates capability instead of hard-coding

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Instead of hard-coding the location of the L1 PM Substates capability based
on the Device ID, search for it in the extended capabilities list.  This
works for any device, as long as it implements the L1 PM Substates
capability correctly, so it doesn't require maintenance as new devices are
added.  No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200721212336.1159079-5-helgaas@kernel.org
[ minor addition due to differences in my tree - gregkh]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bjorn Helgaas 2020-07-21 16:23:35 -05:00 • committed by Greg Kroah-Hartman
parent 22bf3251d7
commit ed86a9877d
5 changed files with 24 additions and 13 deletions
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4
include/linux/rtsx_pci.h
View file

@ -1037,10 +1037,6 @@
#define PHY_DIG1E_RX_EN_KEEP 0x0001
#define PHY_DUM_REG 0x1F
#define PCR_ASPM_SETTING_REG1 0x160
#define PCR_ASPM_SETTING_REG2 0x168
#define PCR_ASPM_SETTING_5260 0x178
#define PCR_SETTING_REG1 0x724
#define PCR_SETTING_REG2 0x814
#define PCR_SETTING_REG3 0x747