mmc: sdhci-pci-gli: Enlarge ASPM L1 entry delay of GL9763E
authorRenius Chen <reniuschengl@gmail.com>
Fri, 15 Jan 2021 05:47:36 +0000 (13:47 +0800)
committerUlf Hansson <ulf.hansson@linaro.org>
Mon, 1 Feb 2021 10:54:46 +0000 (11:54 +0100)
commitedee82f79bab6c109c07d6a99cb564cc8fd1d0cf
tree4eb0971826878a9493a340ed229a036483f87f38
parent783667ccb5b57cc81af2646b46f56ada05f0f0ae
mmc: sdhci-pci-gli: Enlarge ASPM L1 entry delay of GL9763E

GL9763E enters ASPM L1 state after a very short idle in default,
even during a burst of request. So the R/W performance of GL9763E
is low with some platforms, which support ASPM mechanism, due to
entering ASPM L1 state very frequently in R/W process. Set the L1
entry delay bits in vendor-specific register to 0x3FF to enlarge
the idle period to 260us for improving the R/W performance
of GL9763E.

Signed-off-by: Renius Chen <reniuschengl@gmail.com>
Link: https://lore.kernel.org/r/20210115054736.27769-1-reniuschengl@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/host/sdhci-pci-gli.c