From cb271f3ce969a0fc4ecf9fc4b5a28852509714ed Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Wed, 11 Feb 2015 12:44:55 +0800 Subject: usb: chipidea: add chipidea revision information 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 Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/ci.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/usb/chipidea/ci.h') diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index e53287aff916..c09381d4ca77 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -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) -- cgit v1.2.3