linux-kernel - [PATCH 06/25] media: iris: Allow substate transition to load resources during output streaming

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Message-ID: <20250704-iris-video-encoder-v1-6-b6ce24e273cf@quicinc.com>
Date: Fri, 4 Jul 2025 13:23:06 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Vikash Garodia <quic_vgarodia@...cinc.com>,
        Abhinav Kumar
	<abhinav.kumar@...ux.dev>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil
	<hverkuil@...all.nl>,
        Stefan Schmidt <stefan.schmidt@...aro.org>,
        "Vedang
 Nagar" <quic_vnagar@...cinc.com>
CC: <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Dikshita Agarwal <quic_dikshita@...cinc.com>
Subject: [PATCH 06/25] media: iris: Allow substate transition to load
 resources during output streaming

Previously, the transition to load resources substate was only allowed
when instance state was INIT, since capture port streaming was not
permitted before output port streaming in the driver.
However, now after removing that restriction, the instance state can be
OUTPUT_STREAMING when firmware start is triggered and substate needs to
be moved to LOAD_RESOURCES.

Fixes: 547f7b8c5090 ("media: iris: add check to allow sub states transitions")
Signed-off-by: Dikshita Agarwal <quic_dikshita@...cinc.com>
---
 drivers/media/platform/qcom/iris/iris_state.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/iris/iris_state.c b/drivers/media/platform/qcom/iris/iris_state.c
index 104e1687ad39dab93ff66450ba3a97c309b1e1e1..a21238d2818f9606871953bd0bee25382cca0474 100644
--- a/drivers/media/platform/qcom/iris/iris_state.c
+++ b/drivers/media/platform/qcom/iris/iris_state.c
@@ -122,7 +122,8 @@ static bool iris_inst_allow_sub_state(struct iris_inst *inst, enum iris_inst_sub
 		return false;
 	case IRIS_INST_OUTPUT_STREAMING:
 		if (sub_state & (IRIS_INST_SUB_DRC_LAST |
-			IRIS_INST_SUB_DRAIN_LAST | IRIS_INST_SUB_OUTPUT_PAUSE))
+			IRIS_INST_SUB_DRAIN_LAST | IRIS_INST_SUB_OUTPUT_PAUSE |
+			IRIS_INST_SUB_LOAD_RESOURCES))
 			return true;
 		return false;
 	case IRIS_INST_STREAMING:

-- 
2.34.1