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slimbus: core: Add slim controllers support

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This patch adds support to slim controllers in the slim core,
including some utility functions invoked by the controller and
slim device drivers.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviwed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sagar Dharia
2017-12-11 23:42:58 +00:00
committed by Greg Kroah-Hartman
parent 3648e78ec7
commit 46a2bb5a7f
3 changed files with 422 additions and 0 deletions
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8
include/linux/slimbus.h
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@@ -37,11 +37,14 @@ enum slim_device_status {
SLIM_DEVICE_STATUS_RESERVED,
};
struct slim_controller;
/**
* struct slim_device - Slim device handle.
* @dev: Driver model representation of the device.
* @e_addr: Enumeration address of this device.
* @status: slim device status
* @ctrl: slim controller instance.
* @laddr: 1-byte Logical address of this device.
* @is_laddr_valid: indicates if the laddr is valid or not
*
@@ -52,6 +55,7 @@ enum slim_device_status {
struct slim_device {
struct device dev;
struct slim_eaddr e_addr;
struct slim_controller *ctrl;
enum slim_device_status status;
u8 laddr;
bool is_laddr_valid;
@@ -113,4 +117,8 @@ static inline void slim_set_devicedata(struct slim_device *dev, void *data)
{
dev_set_drvdata(&dev->dev, data);
}
struct slim_device *slim_get_device(struct slim_controller *ctrl,
struct slim_eaddr *e_addr);
int slim_get_logical_addr(struct slim_device *sbdev);
#endif /* _LINUX_SLIMBUS_H */