linux-kernel - [PATCH RESEND v3 4/5] clk: qcom: Use HW_CTRL_TRIGGER flag to switch video GDSC to HW mode

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Message-Id: <20231101-gdsc-hwctrl-v3-4-0740ae6b2b04@linaro.org>
Date:   Wed, 01 Nov 2023 11:04:10 +0200
From:   Abel Vesa <abel.vesa@...aro.org>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Kevin Hilman <khilman@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Vikash Garodia <quic_vgarodia@...cinc.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Taniya Das <tdas@....qualcomm.com>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-media@...r.kernel.org,
        Abel Vesa <abel.vesa@...aro.org>,
        Jagadeesh Kona <quic_jkona@...cinc.com>
Subject: [PATCH RESEND v3 4/5] clk: qcom: Use HW_CTRL_TRIGGER flag to
 switch video GDSC to HW mode

From: Jagadeesh Kona <quic_jkona@...cinc.com>

The current HW_CTRL flag switches the video GDSC to HW control mode as
part of GDSC enable itself, instead of that use HW_CTRL_TRIGGER flag to
give consumer drivers more control and switch the GDSC mode as and when
required.

HW_CTRL_TRIGGER flag allows consumer drivers to switch the video GDSC to
HW/SW control modes at runtime using dev_pm_genpd_set_hwmode API.

Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>
Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---
 drivers/clk/qcom/videocc-sc7180.c | 2 +-
 drivers/clk/qcom/videocc-sc7280.c | 2 +-
 drivers/clk/qcom/videocc-sdm845.c | 4 ++--
 drivers/clk/qcom/videocc-sm8250.c | 4 ++--
 drivers/clk/qcom/videocc-sm8550.c | 4 ++--
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/qcom/videocc-sc7180.c b/drivers/clk/qcom/videocc-sc7180.c
index 5b9b54f616b8..51439f7ba70c 100644
--- a/drivers/clk/qcom/videocc-sc7180.c
+++ b/drivers/clk/qcom/videocc-sc7180.c
@@ -166,7 +166,7 @@ static struct gdsc vcodec0_gdsc = {
 	.pd = {
 		.name = "vcodec0_gdsc",
 	},
-	.flags = HW_CTRL,
+	.flags = HW_CTRL_TRIGGER,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
diff --git a/drivers/clk/qcom/videocc-sc7280.c b/drivers/clk/qcom/videocc-sc7280.c
index 615695d82319..3d07b1e95986 100644
--- a/drivers/clk/qcom/videocc-sc7280.c
+++ b/drivers/clk/qcom/videocc-sc7280.c
@@ -236,7 +236,7 @@ static struct gdsc mvs0_gdsc = {
 		.name = "mvs0_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = HW_CTRL | RETAIN_FF_ENABLE,
+	.flags = HW_CTRL_TRIGGER | RETAIN_FF_ENABLE,
 };
 
 static struct gdsc mvsc_gdsc = {
diff --git a/drivers/clk/qcom/videocc-sdm845.c b/drivers/clk/qcom/videocc-sdm845.c
index c77a4dd5d39c..dad011c48973 100644
--- a/drivers/clk/qcom/videocc-sdm845.c
+++ b/drivers/clk/qcom/videocc-sdm845.c
@@ -260,7 +260,7 @@ static struct gdsc vcodec0_gdsc = {
 	},
 	.cxcs = (unsigned int []){ 0x890, 0x930 },
 	.cxc_count = 2,
-	.flags = HW_CTRL | POLL_CFG_GDSCR,
+	.flags = HW_CTRL_TRIGGER | POLL_CFG_GDSCR,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
@@ -271,7 +271,7 @@ static struct gdsc vcodec1_gdsc = {
 	},
 	.cxcs = (unsigned int []){ 0x8d0, 0x950 },
 	.cxc_count = 2,
-	.flags = HW_CTRL | POLL_CFG_GDSCR,
+	.flags = HW_CTRL_TRIGGER | POLL_CFG_GDSCR,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
diff --git a/drivers/clk/qcom/videocc-sm8250.c b/drivers/clk/qcom/videocc-sm8250.c
index ad46c4014a40..c1b73d852f1c 100644
--- a/drivers/clk/qcom/videocc-sm8250.c
+++ b/drivers/clk/qcom/videocc-sm8250.c
@@ -293,7 +293,7 @@ static struct gdsc mvs0_gdsc = {
 	.pd = {
 		.name = "mvs0_gdsc",
 	},
-	.flags = HW_CTRL,
+	.flags = HW_CTRL_TRIGGER,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
@@ -302,7 +302,7 @@ static struct gdsc mvs1_gdsc = {
 	.pd = {
 		.name = "mvs1_gdsc",
 	},
-	.flags = HW_CTRL,
+	.flags = HW_CTRL_TRIGGER,
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
diff --git a/drivers/clk/qcom/videocc-sm8550.c b/drivers/clk/qcom/videocc-sm8550.c
index f3c9dfaee968..404c6600edae 100644
--- a/drivers/clk/qcom/videocc-sm8550.c
+++ b/drivers/clk/qcom/videocc-sm8550.c
@@ -322,7 +322,7 @@ static struct gdsc video_cc_mvs0_gdsc = {
 	},
 	.pwrsts = PWRSTS_OFF_ON,
 	.parent = &video_cc_mvs0c_gdsc.pd,
-	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | HW_CTRL,
+	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | HW_CTRL_TRIGGER,
 };
 
 static struct gdsc video_cc_mvs1c_gdsc = {
@@ -347,7 +347,7 @@ static struct gdsc video_cc_mvs1_gdsc = {
 	},
 	.pwrsts = PWRSTS_OFF_ON,
 	.parent = &video_cc_mvs1c_gdsc.pd,
-	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | HW_CTRL,
+	.flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE | HW_CTRL_TRIGGER,
 };
 
 static struct clk_regmap *video_cc_sm8550_clocks[] = {

-- 
2.34.1