linux-kernel - [PATCH v3 2/2] clk: qcom: gcc: Register QUPv3 RCGs for DFS on SDM845

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Date:   Mon, 16 Jul 2018 11:07:48 +0530
From:   Taniya Das <tdas@...eaurora.org>
To:     Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>
Cc:     Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Amit Nischal <anischal@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        Taniya Das <tdas@...eaurora.org>
Subject: [PATCH v3 2/2] clk: qcom: gcc: Register QUPv3 RCGs for DFS on SDM845

QUPv3 clocks support DFS and thus register the RCGs which require support
for the same.

Signed-off-by: Taniya Das <tdas@...eaurora.org>
---
 drivers/clk/qcom/gcc-sdm845.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/clk/qcom/gcc-sdm845.c b/drivers/clk/qcom/gcc-sdm845.c
index 0f694ed..305deca 100644
--- a/drivers/clk/qcom/gcc-sdm845.c
+++ b/drivers/clk/qcom/gcc-sdm845.c
@@ -3460,9 +3460,29 @@ enum {
 };
 MODULE_DEVICE_TABLE(of, gcc_sdm845_match_table);

+static struct clk_rcg2 *gcc_dfs_clocks[] = {
+	&gcc_qupv3_wrap0_s0_clk_src,
+	&gcc_qupv3_wrap0_s1_clk_src,
+	&gcc_qupv3_wrap0_s2_clk_src,
+	&gcc_qupv3_wrap0_s3_clk_src,
+	&gcc_qupv3_wrap0_s4_clk_src,
+	&gcc_qupv3_wrap0_s5_clk_src,
+	&gcc_qupv3_wrap0_s6_clk_src,
+	&gcc_qupv3_wrap0_s7_clk_src,
+	&gcc_qupv3_wrap1_s0_clk_src,
+	&gcc_qupv3_wrap1_s1_clk_src,
+	&gcc_qupv3_wrap1_s2_clk_src,
+	&gcc_qupv3_wrap1_s3_clk_src,
+	&gcc_qupv3_wrap1_s4_clk_src,
+	&gcc_qupv3_wrap1_s5_clk_src,
+	&gcc_qupv3_wrap1_s6_clk_src,
+	&gcc_qupv3_wrap1_s7_clk_src,
+};
+
 static int gcc_sdm845_probe(struct platform_device *pdev)
 {
 	struct regmap *regmap;
+	int ret;

 	regmap = qcom_cc_map(pdev, &gcc_sdm845_desc);
 	if (IS_ERR(regmap))
@@ -3472,6 +3492,11 @@ static int gcc_sdm845_probe(struct platform_device *pdev)
 	regmap_update_bits(regmap, 0x09ffc, 0x3, 0x3);
 	regmap_update_bits(regmap, 0x71028, 0x3, 0x3);

+	ret = qcom_cc_register_rcg_dfs(regmap, gcc_dfs_clocks,
+					ARRAY_SIZE(gcc_dfs_clocks));
+	if (ret)
+		return ret;
+
 	return qcom_cc_really_probe(pdev, &gcc_sdm845_desc, regmap);
 }

--
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