linux-kernel - [PATCH v4 4/7] media: venus: hfi: Skip AON register programming for V6 1pipe

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Date:   Tue, 10 Aug 2021 15:17:52 +0530
From:   Dikshita Agarwal <dikshita@...eaurora.org>
To:     linux-media@...r.kernel.org, stanimir.varbanov@...aro.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        vgarodia@...eaurora.org, Dikshita Agarwal <dikshita@...eaurora.org>
Subject: [PATCH v4 4/7] media: venus: hfi: Skip AON register programming for V6 1pipe

AON register programming is used to set NOC to low
power mode during V6 power off sequence. However
AON register memory map is not applicable to 1pipe,
hence skipping AON register programming.

Co-developed-by: Mansur Alisha Shaik <mansur@...eaurora.org>
Co-developed-by: Vikash Garodia <vgarodia@...eaurora.org>
Signed-off-by: Dikshita Agarwal <dikshita@...eaurora.org>
Acked-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
---
 drivers/media/platform/qcom/venus/hfi_venus.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
index ce98c52..3a75a27 100644
--- a/drivers/media/platform/qcom/venus/hfi_venus.c
+++ b/drivers/media/platform/qcom/venus/hfi_venus.c
@@ -551,6 +551,9 @@ static int venus_halt_axi(struct venus_hfi_device *hdev)
 	if (IS_V6(hdev->core)) {
 		writel(0x3, cpu_cs_base + CPU_CS_X2RPMH_V6);
 
+		if (hdev->core->res->num_vpp_pipes == 1)
+			goto skip_aon_mvp_noc;
+
 		writel(0x1, aon_base + AON_WRAPPER_MVP_NOC_LPI_CONTROL);
 		ret = readl_poll_timeout(aon_base + AON_WRAPPER_MVP_NOC_LPI_STATUS,
 					 val,
@@ -560,6 +563,7 @@ static int venus_halt_axi(struct venus_hfi_device *hdev)
 		if (ret)
 			return -ETIMEDOUT;
 
+skip_aon_mvp_noc:
 		mask_val = (BIT(2) | BIT(1) | BIT(0));
 		writel(mask_val, wrapper_base + WRAPPER_DEBUG_BRIDGE_LPI_CONTROL_V6);
 
-- 
2.7.4