linux-kernel - [PATCH V5 2/8] clk: qcom: gcc-qdu1000: Fix gcc_pcie_0_pipe_clk

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Message-ID: <20230803105741.2292309-3-quic_imrashai@quicinc.com>
Date:   Thu, 3 Aug 2023 16:27:35 +0530
From:   Imran Shaik <quic_imrashai@...cinc.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC:     Taniya Das <quic_tdas@...cinc.com>,
        Imran Shaik <quic_imrashai@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Melody Olvera <quic_molvera@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Jagadeesh Kona <quic_jkona@...cinc.com>,
        "Ajit Pandey" <quic_ajipan@...cinc.com>,
        Satya Priya Kakitapalli <quic_skakitap@...cinc.com>
Subject: [PATCH V5 2/8] clk: qcom: gcc-qdu1000: Fix gcc_pcie_0_pipe_clk_src clock handling

Fix the gcc pcie pipe clock handling as per the clk_regmap_phy_mux_ops
implementation to let the clock framework automatically park the clock
at XO when the clock is switched off and restore the parent when the
clock is switched on.

Fixes: 1c9efb0bc040 ("clk: qcom: Add QDU1000 and QRU1000 GCC support")
Co-developed-by: Taniya Das <quic_tdas@...cinc.com>
Signed-off-by: Taniya Das <quic_tdas@...cinc.com>
Signed-off-by: Imran Shaik <quic_imrashai@...cinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
Changes since v4:
 - None
Changes since v3:
 - None
Changes since v2:
 - Updated the commit text
Changes since v1:
 - Newly added

 drivers/clk/qcom/gcc-qdu1000.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/clk/qcom/gcc-qdu1000.c b/drivers/clk/qcom/gcc-qdu1000.c
index 328b306297ef..9fa0616952d9 100644
--- a/drivers/clk/qcom/gcc-qdu1000.c
+++ b/drivers/clk/qcom/gcc-qdu1000.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <linux/clk-provider.h>
@@ -371,16 +371,6 @@ static const struct clk_parent_data gcc_parent_data_6[] = {
 	{ .index = DT_TCXO_IDX },
 };
 
-static const struct parent_map gcc_parent_map_7[] = {
-	{ P_PCIE_0_PIPE_CLK, 0 },
-	{ P_BI_TCXO, 2 },
-};
-
-static const struct clk_parent_data gcc_parent_data_7[] = {
-	{ .index = DT_PCIE_0_PIPE_CLK_IDX },
-	{ .index = DT_TCXO_IDX },
-};
-
 static const struct parent_map gcc_parent_map_8[] = {
 	{ P_BI_TCXO, 0 },
 	{ P_GCC_GPLL0_OUT_MAIN, 1 },
@@ -440,16 +430,15 @@ static struct clk_regmap_mux gcc_pcie_0_phy_aux_clk_src = {
 	},
 };
 
-static struct clk_regmap_mux gcc_pcie_0_pipe_clk_src = {
+static struct clk_regmap_phy_mux gcc_pcie_0_pipe_clk_src = {
 	.reg = 0x9d064,
-	.shift = 0,
-	.width = 2,
-	.parent_map = gcc_parent_map_7,
 	.clkr = {
 		.hw.init = &(const struct clk_init_data) {
 			.name = "gcc_pcie_0_pipe_clk_src",
-			.parent_data = gcc_parent_data_7,
-			.num_parents = ARRAY_SIZE(gcc_parent_data_7),
+			.parent_data = &(const struct clk_parent_data){
+				.index = DT_PCIE_0_PIPE_CLK_IDX,
+			},
+			.num_parents = 1,
 			.ops = &clk_regmap_phy_mux_ops,
 		},
 	},
-- 
2.25.1