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usb: chipidea: add chipidea revision information

Selaa lähdekoodia 
Define ci_get_revision API to know the controller revision
information according to chipidea 1.1a, 2.0a and 2.5a spec.
Besides, add one entry at struct ci_hdrc to indicate revision
information, it can be used for adding different code for
revisions, eg kinds of errata.

Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Chen
2015-02-11 12:44:55 +08:00
committed by Greg Kroah-Hartman
vanhempi 655d32e9b2
commit cb271f3ce9
3 muutettua tiedostoa jossa 45 lisäystä ja 2 poistoa
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14
drivers/usb/chipidea/ci.h
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@@ -106,6 +106,18 @@ enum ci_role {
CI_ROLE_END,
};
enum ci_revision {
CI_REVISION_1X = 10, /* Revision 1.x */
CI_REVISION_20 = 20, /* Revision 2.0 */
CI_REVISION_21, /* Revision 2.1 */
CI_REVISION_22, /* Revision 2.2 */
CI_REVISION_23, /* Revision 2.3 */
CI_REVISION_24, /* Revision 2.4 */
CI_REVISION_25, /* Revision 2.5 */
CI_REVISION_25_PLUS, /* Revision above than 2.5 */
CI_REVISION_UNKNOWN = 99, /* Unknown Revision */
};
/**
* struct ci_role_driver - host/gadget role driver
* @start: start this role
@@ -181,6 +193,7 @@ struct hw_bank {
* @supports_runtime_pm: if runtime pm is supported
* @in_lpm: if the core in low power mode
* @wakeup_int: if wakeup interrupt occur
* @rev: The revision number for controller
*/
struct ci_hdrc {
struct device *dev;
@@ -226,6 +239,7 @@ struct ci_hdrc {
bool supports_runtime_pm;
bool in_lpm;
bool wakeup_int;
enum ci_revision rev;
};
static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)