linux-kernel - [PATCH 6/6] clk: qcom: Fix APSS PLL and RCG Configuration

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Message-ID: <20230113143647.14961-7-quic_devipriy@quicinc.com>
Date:   Fri, 13 Jan 2023 20:06:47 +0530
From:   devi priya <quic_devipriy@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <mturquette@...libre.com>,
        <sboyd@...nel.org>, <jassisinghbrar@...il.com>,
        <catalin.marinas@....com>, <will@...nel.org>,
        <shawnguo@...nel.org>, <arnd@...db.de>,
        <marcel.ziswiler@...adex.com>, <dmitry.baryshkov@...aro.org>,
        <nfraprado@...labora.com>, <broonie@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <quic_srichara@...cinc.com>, <quic_gokulsri@...cinc.com>,
        <quic_sjaganat@...cinc.com>, <quic_kathirav@...cinc.com>,
        <quic_arajkuma@...cinc.com>, <quic_anusha@...cinc.com>,
        <quic_poovendh@...cinc.com>
Subject: [PATCH 6/6] clk: qcom: Fix APSS PLL and RCG Configuration

Included CLK_IS_CRITICAL flag which helps to properly enable
the APSS PLL during bootup.
clk_rcg2_ops should be used for APSS clock RCG, as other ops
will not configure the RCG register

Co-developed-by: Praveenkumar I <quic_ipkumar@...cinc.com>
Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
Signed-off-by: devi priya <quic_devipriy@...cinc.com>
---
 drivers/clk/qcom/apss-ipq-pll.c | 1 +
 drivers/clk/qcom/apss-ipq6018.c | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/apss-ipq-pll.c b/drivers/clk/qcom/apss-ipq-pll.c
index dd0c01bf5a98..75486a124fcd 100644
--- a/drivers/clk/qcom/apss-ipq-pll.c
+++ b/drivers/clk/qcom/apss-ipq-pll.c
@@ -33,6 +33,7 @@ static struct clk_alpha_pll ipq_pll = {
 			},
 			.num_parents = 1,
 			.ops = &clk_alpha_pll_huayra_ops,
+			.flags = CLK_IS_CRITICAL,
 		},
 	},
 };
diff --git a/drivers/clk/qcom/apss-ipq6018.c b/drivers/clk/qcom/apss-ipq6018.c
index f2f502e2d5a4..0d0e7196a4dc 100644
--- a/drivers/clk/qcom/apss-ipq6018.c
+++ b/drivers/clk/qcom/apss-ipq6018.c
@@ -33,15 +33,21 @@ static const struct parent_map parents_apcs_alias0_clk_src_map[] = {
 	{ P_APSS_PLL_EARLY, 5 },
 };
 
+static const struct freq_tbl ftbl_apcs_alias0_clk_src[] = {
+	{ .src = P_APSS_PLL_EARLY, .pre_div = 1 },
+	{ }
+};
+
 static struct clk_rcg2 apcs_alias0_clk_src = {
 	.cmd_rcgr = 0x0050,
+	.freq_tbl = ftbl_apcs_alias0_clk_src,
 	.hid_width = 5,
 	.parent_map = parents_apcs_alias0_clk_src_map,
 	.clkr.hw.init = &(struct clk_init_data){
 		.name = "apcs_alias0_clk_src",
 		.parent_data = parents_apcs_alias0_clk_src,
 		.num_parents = ARRAY_SIZE(parents_apcs_alias0_clk_src),
-		.ops = &clk_rcg2_mux_closest_ops,
+		.ops = &clk_rcg2_ops,
 		.flags = CLK_SET_RATE_PARENT,
 	},
 };
-- 
2.17.1