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 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
