linux/drivers/hsi/controllers, branch v4.7

HSI: omap-ssi: move omap_ssi_port_update_fclk

2016-05-09T20:45:18Z

After the clk change support, the ssi omap ssi core driver now calls into the port driver to change fclk. This function was previously inside of an #ifdef, because it was only used when CONFIG_PM is enabled. Now it also gets used without power management support: drivers/hsi/built-in.o: In function `ssi_clk_event': omap_ssi_port.c:(.text+0x1bf8): undefined reference to `omap_ssi_port_update_fclk' This moves the function outside of the CONFIG_PM guard. Signed-off-by: Arnd Bergmann Fixes: 4bcf7414528a ("HSI: omap-ssi: add clk change support") Signed-off-by: Sebastian Reichel

HSI: omap-ssi: include pinctrl header files

2016-05-09T20:45:18Z

The driver now uses some pinctrl functions, but fails to build if PINCTRL is disabled because the respective header files are only included indirectly: drivers/hsi/controllers/omap_ssi_core.c: In function 'ssi_clk_event': drivers/hsi/controllers/omap_ssi_core.c:317:4: error: implicit declaration of function 'pinctrl_pm_select_idle_state' [-Werror=implicit-function-declaration] drivers/hsi/controllers/omap_ssi_core.c:339:4: error: implicit declaration of function 'pinctrl_pm_select_default_state' [-Werror=implicit-function-declaration] drivers/hsi/controllers/omap_ssi_port.c: In function 'ssi_flush': drivers/hsi/controllers/omap_ssi_port.c:520:2: error: implicit declaration of function 'pinctrl_pm_select_idle_state' [-Werror=implicit-function-declaration] This includes the headers from the files that call the functions, which works even if pinctrl is turned off. Signed-off-by: Arnd Bergmann Fixes: 4bcf7414528a ("HSI: omap-ssi: add clk change support") Signed-off-by: Sebastian Reichel

HSI: omap-ssi: add COMMON_CLK dependency

2016-05-09T20:45:18Z

Enabling the omap ssi driver without COMMON_CLK results in a build failure: drivers/hsi/controllers/omap_ssi_core.c: In function 'ssi_clk_event': drivers/hsi/controllers/omap_ssi_core.c:304:7: error: 'PRE_RATE_CHANGE' undeclared (first use in this function) This adds a Kconfig dependency to avoid the invalid configuration. Signed-off-by: Arnd Bergmann Fixes: 4bcf7414528a ("HSI: omap-ssi: add clk change support") Signed-off-by: Sebastian Reichel

HSI: omap-ssi: add clk change support

2016-05-02T19:56:25Z

This adds support for frequency changes of the SSI functional clock, which may occur due to DVFS. Acked-by: Pavel Machek Signed-off-By: Sebastian Reichel

HSI: omap_ssi: built omap_ssi and omap_ssi_port into one module

2016-05-02T19:56:21Z

Merge omap_ssi and omap_ssi_port into one module. This fixes problems with module cycle dependencies introduced by future patches. Acked-by: Pavel Machek Signed-off-by: Sebastian Reichel

HSI: omap_ssi: fix removal of port platform device

2016-05-02T19:56:17Z

This avoids removal of the HSI port device when only the platform port device should be removed and clears the POPULATED bit in the DT node, so that a new platform device is created when the driver is probed again. Acked-by: Pavel Machek Signed-off-by: Sebastian Reichel

HSI: omap_ssi: make sure probe stays available

2016-05-02T19:56:12Z

device can be unbind/rebind, so probe should stay available. Acked-by: Pavel Machek Signed-off-by: Sebastian Reichel

HSI: omap_ssi: fix module unloading

2016-05-02T19:56:01Z

Removal of ssi controller debugfs directory must happen after the clients have been removed from it. Acked-by: Pavel Machek Signed-off-by: Sebastian Reichel

HSI: omap_ssi_port: switch to gpiod API

2016-05-02T19:55:20Z

Simplify driver by switching to new gpio descriptor based API. Acked-by: Pavel Machek Signed-off-by: Sebastian Reichel

HSI: omap_ssi_port: fix handling of_get_named_gpio result

2016-01-07T15:07:54Z

The function can return negative value. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda Signed-off-by: Sebastian Reichel