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| author |   Peter Chen <peter.chen@freescale.com> | 2015-02-11 12:44:55 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-18 16:19:10 +0100 |
| commit | cb271f3ce969a0fc4ecf9fc4b5a28852509714ed (patch) | |
| tree | 39f34575d899b8cfd0d347ba26564ad62a9bb39b /drivers/usb/chipidea/ci.h | |
| parent | usb: chipidea: add identification registers access APIs (diff) | |
| download | linux-dev-cb271f3ce969a0fc4ecf9fc4b5a28852509714ed.tar.xz linux-dev-cb271f3ce969a0fc4ecf9fc4b5a28852509714ed.zip | |
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 <stefan@agner.ch>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/ci.h')
| -rw-r--r-- | drivers/usb/chipidea/ci.h | 14 |
1 files changed, 14 insertions, 0 deletions
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) |