linux-kernel - [PATCH v2 14/18] clk: qcom: videocc-sm8150: Set delay for Venus CLK resets

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Message-Id: <20240105-topic-venus_reset-v2-14-c37eba13b5ce@linaro.org>
Date: Tue, 06 Feb 2024 19:43:47 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
 Dikshita Agarwal <quic_dikshita@...cinc.com>, 
 Vikash Garodia <quic_vgarodia@...cinc.com>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v2 14/18] clk: qcom: videocc-sm8150: Set delay for Venus
 CLK resets

Some Venus resets may require more time when toggling. Describe that.

The value was obtained by referencing the msm-4.14/19 driver, which uses a
single value for all platforms [1].

[1] https://git.codelinaro.org/clo/la/platform/vendor/opensource/video-driver/-/blob/LA.UM.9.15.c26/msm/vidc/hfi_common.c?ref_type=heads#L3662-3663
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/clk/qcom/videocc-sm8150.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/videocc-sm8150.c b/drivers/clk/qcom/videocc-sm8150.c
index f1456eaa87c4..bead5186a5d6 100644
--- a/drivers/clk/qcom/videocc-sm8150.c
+++ b/drivers/clk/qcom/videocc-sm8150.c
@@ -215,7 +215,7 @@ static const struct regmap_config video_cc_sm8150_regmap_config = {
 };
 
 static const struct qcom_reset_map video_cc_sm8150_resets[] = {
-	[VIDEO_CC_MVSC_CORE_CLK_BCR] = { 0x850, 2 },
+	[VIDEO_CC_MVSC_CORE_CLK_BCR] = { .reg = 0x850, .bit = 2, .udelay = 150 },
 	[VIDEO_CC_INTERFACE_BCR] = { 0x8f0 },
 	[VIDEO_CC_MVS0_BCR] = { 0x870 },
 	[VIDEO_CC_MVS1_BCR] = { 0x8b0 },

-- 
2.43.0