Many MMC capability flags are platform-dependent and are traditionally set in platform data. With DT often each such capability requires a special binding. Add bindings for MMC_CAP_SD_HIGHSPEED, MMC_CAP_MMC_HIGHSPEED, MMC_CAP_POWER_OFF_CARD and MMC_CAP_SDIO_IRQ capabilities. Also add code to DT parser to look up "keep-power-in-suspend" and "enable-sdio-wakeup" bindings and set MMC_PM_KEEP_POWER and MMC_PM_WAKE_SDIO_IRQ respectively, if found. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> --- v3: add cap-sdio-irq Documentation/devicetree/bindings/mmc/mmc.txt | 4 ++++ drivers/mmc/core/host.c | 13 +++++++++++++ 2 files changed, 17 insertions(+), 0 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index 51dd64f..a043c78 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -25,6 +25,10 @@ Optional properties: - max-frequency: maximum operating clock frequency - no-1-8-v: when present, denotes that 1.8v card voltage is not supported on this system, even if the controller claims it is. +- cap-sd-highspeed: SD high-speed timing is supported +- cap-mmc-highspeed: MMC high-speed timing is supported +- cap-power-off-card: powering off the card is safe +- cap-sdio-irq: enable SDIO IRQ signalling on this interface *NOTE* on CD and WP polarity. As of 3.8, SD/MMC drivers parse their DT nodes each in its own way, including calculation of CD and WP polarities. Our goal is diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index c412612..56b6227 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -380,6 +380,19 @@ void mmc_of_parse(struct mmc_host *host) } if (explicit_inv_wp ^ gpio_inv_wp) host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH; + + if (of_find_property(np, "cap-sd-highspeed", &len)) + host->caps |= MMC_CAP_SD_HIGHSPEED; + if (of_find_property(np, "cap-mmc-highspeed", &len)) + host->caps |= MMC_CAP_MMC_HIGHSPEED; + if (of_find_property(np, "cap-power-off-card", &len)) + host->caps |= MMC_CAP_POWER_OFF_CARD; + if (of_find_property(np, "cap-sdio-irq", &len)) + host->caps |= MMC_CAP_SDIO_IRQ; + if (of_find_property(np, "keep-power-in-suspend", &len)) + host->pm_caps |= MMC_PM_KEEP_POWER; + if (of_find_property(np, "enable-sdio-wakeup", &len)) + host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; } EXPORT_SYMBOL(mmc_of_parse); -- 1.7.2.5 -- 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
