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| author | Robert Marko <robimarko@gmail.com> | 2022-12-13 23:26:37 +0100 |
|---|---|---|
| committer | Robert Marko <robimarko@gmail.com> | 2023-01-16 12:42:23 +0100 |
| commit | 6c9329e08830fe0f56a361ed0f2898b56157ecbb (patch) | |
| tree | c0cb25368f2cfd95ed084f84fdd81a21a1e9eae9 /target | |
| parent | af6da888146f0307a2c3c803c473318750c70920 (diff) | |
| download | upstream-6c9329e08830fe0f56a361ed0f2898b56157ecbb.tar.gz upstream-6c9329e08830fe0f56a361ed0f2898b56157ecbb.tar.bz2 upstream-6c9329e08830fe0f56a361ed0f2898b56157ecbb.zip | |
generic: 5.15: add MHI SBL callback for ath11k
This adds the MHI SBL callback that ath11k will utilize in order to
support multiple PCI cards or AHB+PCI combo which currently does not
work due to QRTR ID-s conflicting.
This is a prerequisite for the mac80211 patch targeting ath11k as it
uses MHI from kernel.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/generic/pending-5.15/790-bus-mhi-core-add-SBL-state-callback.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.15/790-bus-mhi-core-add-SBL-state-callback.patch b/target/linux/generic/pending-5.15/790-bus-mhi-core-add-SBL-state-callback.patch new file mode 100644 index 0000000000..00d5cb9ce9 --- /dev/null +++ b/target/linux/generic/pending-5.15/790-bus-mhi-core-add-SBL-state-callback.patch @@ -0,0 +1,48 @@ +From 5f7c5e1c0d7a79be144e5efc1f24728ddd7fc25c Mon Sep 17 00:00:00 2001 +From: Robert Marko <robimarko@gmail.com> +Date: Sat, 5 Nov 2022 20:02:56 +0100 +Subject: [PATCH 1/2] bus: mhi: core: add SBL state callback + +Add support for SBL state callback in MHI core. + +It is required for ath11k MHI devices in order to be able to set QRTR +instance ID in the SBL state so that QRTR instance ID-s dont conflict in +case of multiple PCI/MHI cards or AHB + PCI/MHI card. +Setting QRTR instance ID is only possible in SBL state and there is +currently no way to ensure that we are in that state, so provide a +callback that the controller can trigger off. + +Signed-off-by: Robert Marko <robimarko@gmail.com> +--- + drivers/bus/mhi/core/main.c | 1 + + include/linux/mhi.h | 2 ++ + 2 files changed, 3 insertions(+) + +--- a/drivers/bus/mhi/core/main.c ++++ b/drivers/bus/mhi/core/main.c +@@ -891,6 +891,7 @@ int mhi_process_ctrl_ev_ring(struct mhi_ + switch (event) { + case MHI_EE_SBL: + st = DEV_ST_TRANSITION_SBL; ++ mhi_cntrl->status_cb(mhi_cntrl, MHI_CB_EE_SBL_MODE); + break; + case MHI_EE_WFW: + case MHI_EE_AMSS: +--- a/include/linux/mhi.h ++++ b/include/linux/mhi.h +@@ -34,6 +34,7 @@ struct mhi_buf_info; + * @MHI_CB_SYS_ERROR: MHI device entered error state (may recover) + * @MHI_CB_FATAL_ERROR: MHI device entered fatal error state + * @MHI_CB_BW_REQ: Received a bandwidth switch request from device ++ * @MHI_CB_EE_SBL_MODE: MHI device entered SBL mode + */ + enum mhi_callback { + MHI_CB_IDLE, +@@ -45,6 +46,7 @@ enum mhi_callback { + MHI_CB_SYS_ERROR, + MHI_CB_FATAL_ERROR, + MHI_CB_BW_REQ, ++ MHI_CB_EE_SBL_MODE, + }; + + /** |