linux-kernel - [PATCH v2 4/8] clk: qcom: gcc-sdx75: Update the SDCC RCGs to use shared_floor

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Message-Id: <20251127-sdcc_shared_floor_ops-v2-4-473afc86589c@oss.qualcomm.com>
Date: Thu, 27 Nov 2025 23:27:39 +0530
From: Jagadeesh Kona <jagadeesh.kona@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Taniya Das <quic_tdas@...cinc.com>,
        Melody Olvera <quic_molvera@...cinc.com>,
        Ajit Pandey <quic_ajipan@...cinc.com>,
        Imran Shaik <quic_imrashai@...cinc.com>,
        Luca Weiss <luca.weiss@...rphone.com>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Abel Vesa <abel.vesa@...aro.org>,
        Sibi Sankar <sibi.sankar@....qualcomm.com>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Ajit Pandey <ajit.pandey@....qualcomm.com>,
        Imran Shaik <imran.shaik@....qualcomm.com>,
        Taniya Das <taniya.das@....qualcomm.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jagadeesh Kona <jagadeesh.kona@....qualcomm.com>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>
Subject: [PATCH v2 4/8] clk: qcom: gcc-sdx75: Update the SDCC RCGs to use
 shared_floor_ops

Use shared_floor_ops for the SDCC RCGs so the RCG is safely parked
during disable and the new parent configuration is programmed in
hardware only when the new parent is enabled, avoiding cases where
the RCG configuration fails to update.

Fixes: 108cdc09b2de ("clk: qcom: Add GCC driver support for SDX75")
Reviewed-by: Taniya Das <taniya.das@....qualcomm.com>
Reviewed-by: Imran Shaik <imran.shaik@....qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>
Signed-off-by: Jagadeesh Kona <jagadeesh.kona@....qualcomm.com>
---
 drivers/clk/qcom/gcc-sdx75.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/qcom/gcc-sdx75.c b/drivers/clk/qcom/gcc-sdx75.c
index 453a6bf8e8786308ef785799f71b6cff8a5a9727..1f3cd58483a2d6ef18b43fc2c4ea38a6f8750c5b 100644
--- a/drivers/clk/qcom/gcc-sdx75.c
+++ b/drivers/clk/qcom/gcc-sdx75.c
@@ -1033,7 +1033,7 @@ static struct clk_rcg2 gcc_sdcc1_apps_clk_src = {
 		.name = "gcc_sdcc1_apps_clk_src",
 		.parent_data = gcc_parent_data_17,
 		.num_parents = ARRAY_SIZE(gcc_parent_data_17),
-		.ops = &clk_rcg2_floor_ops,
+		.ops = &clk_rcg2_shared_floor_ops,
 	},
 };
 
@@ -1057,7 +1057,7 @@ static struct clk_rcg2 gcc_sdcc2_apps_clk_src = {
 		.name = "gcc_sdcc2_apps_clk_src",
 		.parent_data = gcc_parent_data_18,
 		.num_parents = ARRAY_SIZE(gcc_parent_data_18),
-		.ops = &clk_rcg2_floor_ops,
+		.ops = &clk_rcg2_shared_floor_ops,
 	},
 };
 

-- 
2.34.1