linux-kernel - [PATCH v2] bus: mhi: core: Fix reading wake

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Date:   Tue, 30 Nov 2021 17:01:31 -0800
From:   Bhaumik Bhatt <quic_bbhatt@...cinc.com>
To:     <manivannan.sadhasivam@...aro.org>
CC:     <linux-arm-msm@...r.kernel.org>, <quic_hemantk@...cinc.com>,
        <quic_jhugo@...cinc.com>, <linux-kernel@...r.kernel.org>,
        <mhi@...ts.linux.dev>, <stable@...r.kernel.org>,
        <quic_olgak@...cinc.com>, <loic.poulain@...aro.org>,
        Bhaumik Bhatt <quic_bbhatt@...cinc.com>
Subject: [PATCH v2] bus: mhi: core: Fix reading wake_capable channel configuration

The 'wake-capable' entry in channel configuration is not set when
parsing the configuration specified by the controller driver. Add
the missing entry to ensure channel is correctly specified as a
'wake-capable' channel.

Cc: stable@...r.kernel.org
Fixes: 0cbf260820fa ("bus: mhi: core: Add support for registering MHI controllers")
Signed-off-by: Bhaumik Bhatt <quic_bbhatt@...cinc.com>
Reviewed-by: Manivannan Sadhasivam <mani@...nel.org>
---
 drivers/bus/mhi/core/init.c | 1 +
 1 file changed, 1 insertion(+)

v2:
-Update subject as per comments
-Add fixes tag and CC stable

diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index 5aaca6d..f1ec3441 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -788,6 +788,7 @@ static int parse_ch_cfg(struct mhi_controller *mhi_cntrl,
 		mhi_chan->offload_ch = ch_cfg->offload_channel;
 		mhi_chan->db_cfg.reset_req = ch_cfg->doorbell_mode_switch;
 		mhi_chan->pre_alloc = ch_cfg->auto_queue;
+		mhi_chan->wake_capable = ch_cfg->wake_capable;
 
 		/*
 		 * If MHI host allocates buffers, then the channel direction
-- 
2.7.4