Re: [PATCH 5/6] bus: mhi: check for RDDM cookie set by device to indicate readiness

Jeffrey Hugo <quic_jhugo@xxxxxxxxxxx> · Thu, 18 Jul 2024 10:25:57 -0600

On 7/18/2024 12:13 AM, Gokul Sriram Palanisamy wrote:

diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index c0c9bfc28e4a..2f90de8616f3 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -839,4 +839,12 @@ int mhi_get_channel_doorbell_offset(struct mhi_controller *mhi_cntrl, u32 *chdb_
   * @mhi_cntrl: MHI controller
   */
  void mhi_debug_reg_dump(struct mhi_controller *mhi_cntrl);
+
+/**
+ * mhi_scan_rddm_cookie - Look for supplied cookie value in the BHI debug
+ * registers set by device to indicate rddm readiness for debugging purposes.
+ * @mhi_cntrl: MHI controller
+ * @cookie: cookie/pattern value to match
+ */
+bool mhi_scan_rddm_cookie(struct mhi_controller *mhi_cntrl, u32 cookie);
  #endif /* _MHI_H_ */

NACK.  This is not used.







