kernel.git/drivers/mmc/core/core.h, branch linux-4.13.y

mmc: core: Rename __mmc_set_signal_voltage() to mmc_set_signal_voltage()

2017-02-13T12:20:43Z

Earlier the mmc_set_signal_voltage() existed, but since it has been renamed to mmc_set_uhs_voltage(), we can now use that name instead. Signed-off-by: Ulf Hansson Reviewed-by: Shawn Lin Tested-by: Jan Glauber Tested-by: Stefan Wahren

mmc: core: Clarify usage of mmc_set_signal_voltage()

2017-02-13T12:20:43Z

The mmc_set_signal_voltage() function is used for SD/SDIO when switching to 1.8V for UHS mode. To clarify this let's do the following changes. - We are always providing MMC_SIGNAL_VOLTAGE_180 as the signal_voltage parameter to the function. Then, let's just remove the parameter as it serves no purpose. - Rename the function to mmc_set_uhs_voltage(). Signed-off-by: Ulf Hansson Reviewed-by: Shawn Lin Tested-by: Jan Glauber Tested-by: Stefan Wahren

mmc: core: Move public functions from core.h to private headers

2017-02-13T12:20:21Z

A significant amount of functions are available through the public mmc core.h header file. Let's slim down this public mmc interface, as to prevent users from abusing it, by moving some of the functions to private mmc header files. This change concentrates on moving the functions into private mmc headers, following changes may continue with additional clean-ups, as an example some functions can be turned into static. Signed-off-by: Ulf Hansson Reviewed-by: Linus Walleij Reviewed-by: Shawn Lin

mmc: core: First step in cleaning up private mmc header files

2017-02-13T12:20:20Z

This is the first step in cleaning up the private mmc header files. In this change we makes sure each header file builds standalone, as that helps to resolve dependencies. While changing this, it also seems reasonable to stop including other headers from inside a header itself which it don't depend upon. Additionally, in some cases such dependencies are better resolved by forward declaring the needed struct. Signed-off-by: Ulf Hansson Reviewed-by: Shawn Lin

mmc: fix mmc_{un,}register_pm_notifier prototypes

2015-12-22T10:32:09Z

The mmc pm notifiers were recently reworked, but the new code produces a lot of warnings when CONFIG_PM_SLEEP is disabled: In file included from ../drivers/mmc/core/sdio_bus.c:27:0: drivers/mmc/core/core.h:97:13: warning: 'mmc_register_pm_notifier' defined but not used [-Wunused-function] The obvious solution is to add the 'inline' keyword at the function definition, as it should be for any function defined in a header file. Signed-off-by: Arnd Bergmann Fixes: 0e40be7c20e0 ("mmc: core: Refactor code to register the MMC PM notifier") Signed-off-by: Ulf Hansson

mmc: core: Refactor code to register the MMC PM notifier

2015-12-22T10:32:04Z

Instead of checking for "#ifdef" directly in the code, let's invent a pair of mmc core functions to deal with register/unregister the MMC PM notifier block. Implement stubs for these functions when CONFIG_PM_SLEEP is unset, as in that case the PM notifiers isn't used. Signed-off-by: Ulf Hansson

mmc: core: Remove MMC_CLKGATE

2015-10-26T15:00:09Z

MMC_CLKGATE was once invented to save power by gating the bus clock at request inactivity. At that time it served its purpose. The modern way to deal with power saving for these scenarios, is by using runtime PM. Nowadays, several host drivers have deployed runtime PM, but for those that haven't and which still cares power saving at request inactivity, it's certainly time to deploy runtime PM as it has been around for several years now. To simplify code to mmc core and thus decrease maintenance efforts, this patch removes all code related to MMC_CLKGATE. Signed-off-by: Ulf Hansson Reviewed-by: Linus Walleij

mmc: core: Factor out common code in drive strength selection

2015-06-01T07:07:12Z

Make a new function out of common code used for drive strength selection. Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson

mmc: core: Add support for HS400 re-tuning

2015-06-01T07:06:57Z

HS400 re-tuning must be done in HS200 mode. Add the ability to switch from HS400 mode to HS200 mode before re-tuning and switch back to HS400 after re-tuning. Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson

mmc: core: Simplify by adding mmc_execute_tuning()

2015-01-19T08:56:30Z

For each MMC, SD and SDIO there is code that holds the clock, calls ops->execute_tuning, and releases the clock. Simplify the code a bit by providing a separate function to do that. Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson