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From:   Konrad Dybcio <konrad.dybcio@linaro.org>
Date:   Thu, 22 Jun 2023 13:57:44 +0200
Subject: [PATCH 4/9] clk: qcom: mmcc-msm8998: Properly consume GPLL0 inputs
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Message-Id: <20230622-topic-8998clk-v1-4-5b7a0d6e98b1@linaro.org>
References: <20230622-topic-8998clk-v1-0-5b7a0d6e98b1@linaro.org>
In-Reply-To: <20230622-topic-8998clk-v1-0-5b7a0d6e98b1@linaro.org>
To:     Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Jeffrey Hugo <quic_jhugo@quicinc.com>,
        Taniya Das <tdas@codeaurora.org>
Cc:     Marijn Suijten <marijn.suijten@somainline.org>,
        linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        Konrad Dybcio <konrad.dybcio@linaro.org>
Precedence: bulk

Up until now, the GPLL0_DIV MMSS input has been modeled as a fixed
child of MMSS_GPLL0_DIV that's always-on. Properly representing the
former in the GCC driver makes us unable to keep doing so.

Consume MSS_GPLL0_DIV through fw_name ("gpll0_div") as well as add a
fixed .name link to keep backwards compatibility.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/clk/qcom/mmcc-msm8998.c | 35 ++++++++---------------------------
 1 file changed, 8 insertions(+), 27 deletions(-)

diff --git a/drivers/clk/qcom/mmcc-msm8998.c b/drivers/clk/qcom/mmcc-msm8998.c
index 4490594bde69..040c495e91e4 100644
--- a/drivers/clk/qcom/mmcc-msm8998.c
+++ b/drivers/clk/qcom/mmcc-msm8998.c
@@ -46,19 +46,6 @@ enum {
 	P_DPLINK,
 };
 
-static struct clk_fixed_factor gpll0_div = {
-	.mult = 1,
-	.div = 2,
-	.hw.init = &(struct clk_init_data){
-		.name = "mmss_gpll0_div",
-		.parent_data = &(const struct clk_parent_data){
-			.fw_name = "gpll0"
-		},
-		.num_parents = 1,
-		.ops = &clk_fixed_factor_ops,
-	},
-};
-
 static const struct clk_div_table post_div_table_fabia_even[] = {
 	{ 0x0, 1 },
 	{ 0x1, 2 },
@@ -354,7 +341,7 @@ static const struct parent_map mmss_xo_gpll0_gpll0_div_map[] = {
 static const struct clk_parent_data mmss_xo_gpll0_gpll0_div[] = {
 	{ .fw_name = "xo" },
 	{ .fw_name = "gpll0" },
-	{ .hw = &gpll0_div.hw },
+	{ .fw_name = "gpll0_div", .name = "gcc_mmss_gpll0_div_clk" },
 };
 
 static const struct parent_map mmss_xo_mmpll0_gpll0_gpll0_div_map[] = {
@@ -368,7 +355,7 @@ static const struct clk_parent_data mmss_xo_mmpll0_gpll0_gpll0_div[] = {
 	{ .fw_name = "xo" },
 	{ .hw = &mmpll0_out_even.clkr.hw },
 	{ .fw_name = "gpll0" },
-	{ .hw = &gpll0_div.hw },
+	{ .fw_name = "gpll0_div", .name = "gcc_mmss_gpll0_div_clk" },
 };
 
 static const struct parent_map mmss_xo_mmpll0_mmpll1_gpll0_gpll0_div_map[] = {
@@ -384,7 +371,7 @@ static const struct clk_parent_data mmss_xo_mmpll0_mmpll1_gpll0_gpll0_div[] = {
 	{ .hw = &mmpll0_out_even.clkr.hw },
 	{ .hw = &mmpll1_out_even.clkr.hw },
 	{ .fw_name = "gpll0" },
-	{ .hw = &gpll0_div.hw },
+	{ .fw_name = "gpll0_div", .name = "gcc_mmss_gpll0_div_clk" },
 };
 
 static const struct parent_map mmss_xo_mmpll0_mmpll5_gpll0_gpll0_div_map[] = {
@@ -400,7 +387,7 @@ static const struct clk_parent_data mmss_xo_mmpll0_mmpll5_gpll0_gpll0_div[] = {
 	{ .hw = &mmpll0_out_even.clkr.hw },
 	{ .hw = &mmpll5_out_even.clkr.hw },
 	{ .fw_name = "gpll0" },
-	{ .hw = &gpll0_div.hw },
+	{ .fw_name = "gpll0_div", .name = "gcc_mmss_gpll0_div_clk" },
 };
 
 static const struct parent_map mmss_xo_mmpll0_mmpll3_mmpll6_gpll0_gpll0_div_map[] = {
@@ -418,7 +405,7 @@ static const struct clk_parent_data mmss_xo_mmpll0_mmpll3_mmpll6_gpll0_gpll0_div
 	{ .hw = &mmpll3_out_even.clkr.hw },
 	{ .hw = &mmpll6_out_even.clkr.hw },
 	{ .fw_name = "gpll0" },
-	{ .hw = &gpll0_div.hw },
+	{ .fw_name = "gpll0_div", .name = "gcc_mmss_gpll0_div_clk" },
 };
 
 static const struct parent_map mmss_xo_mmpll4_mmpll7_mmpll10_gpll0_gpll0_div_map[] = {
@@ -436,7 +423,7 @@ static const struct clk_parent_data mmss_xo_mmpll4_mmpll7_mmpll10_gpll0_gpll0_di
 	{ .hw = &mmpll7_out_even.clkr.hw },
 	{ .hw = &mmpll10_out_even.clkr.hw },
 	{ .fw_name = "gpll0" },
-	{ .hw = &gpll0_div.hw },
+	{ .fw_name = "gpll0_div", .name = "gcc_mmss_gpll0_div_clk" },
 };
 
 static const struct parent_map mmss_xo_mmpll0_mmpll7_mmpll10_gpll0_gpll0_div_map[] = {
@@ -454,7 +441,7 @@ static const struct clk_parent_data mmss_xo_mmpll0_mmpll7_mmpll10_gpll0_gpll0_di
 	{ .hw = &mmpll7_out_even.clkr.hw },
 	{ .hw = &mmpll10_out_even.clkr.hw },
 	{ .fw_name = "gpll0" },
-	{ .hw = &gpll0_div.hw },
+	{ .fw_name = "gpll0_div", .name = "gcc_mmss_gpll0_div_clk" },
 };
 
 static const struct parent_map mmss_xo_mmpll0_mmpll4_mmpll7_mmpll10_gpll0_gpll0_div_map[] = {
@@ -474,7 +461,7 @@ static const struct clk_parent_data mmss_xo_mmpll0_mmpll4_mmpll7_mmpll10_gpll0_g
 	{ .hw = &mmpll7_out_even.clkr.hw },
 	{ .hw = &mmpll10_out_even.clkr.hw },
 	{ .fw_name = "gpll0" },
-	{ .hw = &gpll0_div.hw },
+	{ .fw_name = "gpll0_div", .name = "gcc_mmss_gpll0_div_clk" },
 };
 
 static struct clk_rcg2 byte0_clk_src = {
@@ -2544,10 +2531,6 @@ static struct clk_branch vmem_ahb_clk = {
 	},
 };
 
-static struct clk_hw *mmcc_msm8998_hws[] = {
-	&gpll0_div.hw,
-};
-
 static struct gdsc video_top_gdsc = {
 	.gdscr = 0x1024,
 	.pd = {
@@ -2855,8 +2838,6 @@ static const struct qcom_cc_desc mmcc_msm8998_desc = {
 	.num_resets = ARRAY_SIZE(mmcc_msm8998_resets),
 	.gdscs = mmcc_msm8998_gdscs,
 	.num_gdscs = ARRAY_SIZE(mmcc_msm8998_gdscs),
-	.clk_hws = mmcc_msm8998_hws,
-	.num_clk_hws = ARRAY_SIZE(mmcc_msm8998_hws),
 };
 
 static const struct of_device_id mmcc_msm8998_match_table[] = {

-- 
2.41.0