From: Shawn Lin <shawn.lin@rock-chips.com>
To: Jaehoon Chung <jh80.chung@samsung.com>,
Ulf Hansson <ulf.hansson@linaro.org>
Cc: linux-mmc@vger.kernel.org, Doug Anderson <dianders@chromium.org>,
linux-rockchip@lists.infradead.org,
Shawn Lin <shawn.lin@rock-chips.com>
Subject: [PATCH v2 0/9] Init runtime PM support for dw_mmc
Date: Wed, 12 Oct 2016 10:50:34 +0800 [thread overview]
Message-ID: <1476240643-5701-1-git-send-email-shawn.lin@rock-chips.com> (raw)
Hi Jaehoon and Ulf,
This patch is gonna support runtime PM for dw_mmc.
It could support to disable ciu_clk by default and disable
biu_clk if the devices are non-removeable, or removeable
with gpio-base card detect.
Then I remove the system PM since the runtime PM actually
does the same thing as it. So I help migrate the dw_mmc variant
drivers to use runtime PM pairs and pm_runtime_force_*. Note
that I only enable runtime PM for dw_mmc-rockchip as I will
leave the decision to the owners of the corresponding drivers.
I just tested it on my RK3288 platform with linux-next to make
the runtime PM and system PM work fine for my emmc, sd card and
sdio. But I don't have hardware to help test other variant drivers.
But in theory it should work fine as I mentioned that the runtime
PM does the same thing as system PM except for disabling ciu_clk
aggressively which should not be related to the variant hosts.
As you could see that I just extend the slot-gpio a bit, so the
ideal way is Ulf could pick them up with Jaehoon's ack. :)
Changes in v2:
- use struct device as argument for runtime callback
- use dw_mci_runtime_* directly
- use dw_mci_runtime_* directly
- minor fix since I change the argument for dw_mci_runtime_*
- use dw_mci_runtime_* directly
- use dw_mci_runtime_* directly
Shawn Lin (9):
mmc: dw_mmc: add runtime PM callback
mmc: dw_mmc-rockchip: add runtime PM support
mmc: core: expose the capability of gpio card detect
mmc: dw_mmc: disable biu clk if possible
mmc: dw_mmc-k3: deploy runtime PM facilities
mmc: dw_mmc-exynos: deploy runtime PM facilities
mmc: dw_mmc-pci: deploy runtime PM facilities
mmc: dw_mmc-pltfm: deploy runtime PM facilities
mmc: dw_mmc: remove system PM callback
drivers/mmc/core/slot-gpio.c | 8 +++++++
drivers/mmc/host/dw_mmc-exynos.c | 24 +++++++++-----------
drivers/mmc/host/dw_mmc-k3.c | 39 ++++++++------------------------
drivers/mmc/host/dw_mmc-pci.c | 29 ++++++++----------------
drivers/mmc/host/dw_mmc-pltfm.c | 28 +++++++----------------
drivers/mmc/host/dw_mmc-rockchip.c | 42 +++++++++++++++++++++++++++++++---
drivers/mmc/host/dw_mmc.c | 46 +++++++++++++++++++++++++-------------
drivers/mmc/host/dw_mmc.h | 6 ++---
include/linux/mmc/slot-gpio.h | 1 +
9 files changed, 117 insertions(+), 106 deletions(-)
--
2.3.7
next reply other threads:[~2016-10-12 2:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20161012024453epcas1p1bdc2c6bd18d864b5535bd2b067b491af@epcas1p1.samsung.com>
2016-10-12 2:50 ` Shawn Lin [this message]
2016-10-12 2:50 ` [PATCH v2 1/9] mmc: dw_mmc: add runtime PM callback Shawn Lin
2016-10-12 2:50 ` [PATCH v2 2/9] mmc: dw_mmc-rockchip: add runtime PM support Shawn Lin
2016-10-12 2:50 ` [PATCH v2 3/9] mmc: core: expose the capability of gpio card detect Shawn Lin
2016-10-12 2:50 ` [PATCH v2 4/9] mmc: dw_mmc: disable biu clk if possible Shawn Lin
[not found] ` <1476240643-5701-1-git-send-email-shawn.lin-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-10-12 2:54 ` [PATCH v2 5/9] mmc: dw_mmc-k3: deploy runtime PM facilities Shawn Lin
2016-10-12 2:55 ` [PATCH v2 6/9] mmc: dw_mmc-exynos: " Shawn Lin
2016-10-12 2:56 ` [PATCH v2 7/9] mmc: dw_mmc-pci: " Shawn Lin
2016-10-12 2:56 ` [PATCH v2 8/9] mmc: dw_mmc-pltfm: " Shawn Lin
2016-10-12 2:56 ` [PATCH v2 9/9] mmc: dw_mmc: remove system PM callback Shawn Lin
2016-10-18 0:24 ` [PATCH v2 0/9] Init runtime PM support for dw_mmc Jaehoon Chung
2016-10-18 1:04 ` Shawn Lin
2016-10-18 8:46 ` Ulf Hansson
2016-10-18 10:45 ` Jaehoon Chung
[not found] ` <17f821c0-46d3-76e7-06dd-fbb415de37eb-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-10-18 11:15 ` Ulf Hansson
2016-10-18 11:35 ` Shawn Lin
2016-10-18 13:26 ` Heiko Stübner
2016-10-21 1:56 ` Jaehoon Chung
2016-10-21 2:43 ` Shawn Lin
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