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authorHyungwoo Yang <hyungwoo.yang@intel.com>2019-06-05 21:52:27 -0700
committerJiri Kosina <jkosina@suse.cz>2019-06-26 14:08:11 +0200
commitb12bbdc5dd883f6575f57e529af26cd2c521b320 (patch)
tree99fe288f374305a9fd20c3dfb9d14bf8dc3b1ed1 /include/linux/intel-ish-client-if.h
parent0a95fc733da375de0688d0f1fd3a2869a1c1d499 (diff)
HID: intel-ish-hid: fix wrong driver_data usage
Currently, in suspend() and resume(), ishtp client drivers are using driver_data to get "struct ishtp_cl_device" object which is set by bus driver. It's wrong since the driver_data should not be owned bus. driver_data should be owned by the corresponding ishtp client driver. Due to this, some ishtp client driver like cros_ec_ishtp which uses its driver_data to transfer its data to its child doesn't work correctly. So this patch removes setting driver_data in bus drier and instead of using driver_data to get "struct ishtp_cl_device", since "struct device" is embedded in "struct ishtp_cl_device", we introduce a helper function that returns "struct ishtp_cl_device" from "struct device". Signed-off-by: Hyungwoo Yang <hyungwoo.yang@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'include/linux/intel-ish-client-if.h')
-rw-r--r--include/linux/intel-ish-client-if.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h
index 16255c2ca2f4..0d6b4bc191c5 100644
--- a/include/linux/intel-ish-client-if.h
+++ b/include/linux/intel-ish-client-if.h
@@ -103,6 +103,7 @@ void ishtp_put_device(struct ishtp_cl_device *cl_dev);
void ishtp_get_device(struct ishtp_cl_device *cl_dev);
void ishtp_set_drvdata(struct ishtp_cl_device *cl_device, void *data);
void *ishtp_get_drvdata(struct ishtp_cl_device *cl_device);
+struct ishtp_cl_device *ishtp_dev_to_cl_device(struct device *dev);
int ishtp_register_event_cb(struct ishtp_cl_device *device,
void (*read_cb)(struct ishtp_cl_device *));
struct ishtp_fw_client *ishtp_fw_cl_get_client(struct ishtp_device *dev,