linux-kernel - [PATCH v3 2/5] cpufreq: ti: update OPP table for AM62Px SoCs

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Date: Fri, 21 Jun 2024 11:39:38 -0500
From: Bryan Brattlof <bb@...com>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar
	<viresh.kumar@...aro.org>, Lee Jones <lee@...nel.org>,
        Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra
	<vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>
CC: Vibhore Vardhan <vibhore@...com>, <linux-pm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, Bryan Brattlof <bb@...com>,
        Dhruva
 Gole <d-gole@...com>
Subject: [PATCH v3 2/5] cpufreq: ti: update OPP table for AM62Px SoCs

More speed grades for the AM62Px SoC family have been defined which
unfortunately no longer align with the AM62x table. So create a new
table with these new speed grades defined for the AM62Px

Reviewed-by: Dhruva Gole <d-gole@...com>
Signed-off-by: Bryan Brattlof <bb@...com>
---
 drivers/cpufreq/ti-cpufreq.c | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 51cac31f776f5..49ee25cc4a105 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -69,6 +69,13 @@ enum {
 #define AM62A7_SUPPORT_R_MPU_OPP		BIT(1)
 #define AM62A7_SUPPORT_V_MPU_OPP		BIT(2)
 
+#define AM62P5_EFUSE_O_MPU_OPP			15
+#define AM62P5_EFUSE_S_MPU_OPP			19
+#define AM62P5_EFUSE_U_MPU_OPP			21
+
+#define AM62P5_SUPPORT_O_MPU_OPP		BIT(0)
+#define AM62P5_SUPPORT_U_MPU_OPP		BIT(2)
+
 #define VERSION_COUNT				2
 
 struct ti_cpufreq_data;
@@ -134,6 +141,23 @@ static unsigned long omap3_efuse_xlate(struct ti_cpufreq_data *opp_data,
 	return BIT(efuse);
 }
 
+static unsigned long am62p5_efuse_xlate(struct ti_cpufreq_data *opp_data,
+					unsigned long efuse)
+{
+	unsigned long calculated_efuse = AM62P5_SUPPORT_O_MPU_OPP;
+
+	switch (efuse) {
+	case AM62P5_EFUSE_U_MPU_OPP:
+	case AM62P5_EFUSE_S_MPU_OPP:
+		calculated_efuse |= AM62P5_SUPPORT_U_MPU_OPP;
+		fallthrough;
+	case AM62P5_EFUSE_O_MPU_OPP:
+		calculated_efuse |= AM62P5_SUPPORT_O_MPU_OPP;
+	}
+
+	return calculated_efuse;
+}
+
 static unsigned long am62a7_efuse_xlate(struct ti_cpufreq_data *opp_data,
 					unsigned long efuse)
 {
@@ -291,6 +315,15 @@ static struct ti_cpufreq_soc_data am62a7_soc_data = {
 	.multi_regulator = false,
 };
 
+static struct ti_cpufreq_soc_data am62p5_soc_data = {
+	.efuse_xlate = am62p5_efuse_xlate,
+	.efuse_offset = 0x0,
+	.efuse_mask = 0x07c0,
+	.efuse_shift = 0x6,
+	.rev_offset = 0x0014,
+	.multi_regulator = false,
+};
+
 /**
  * ti_cpufreq_get_efuse() - Parse and return efuse value present on SoC
  * @opp_data: pointer to ti_cpufreq_data context
@@ -395,7 +428,7 @@ static const struct of_device_id ti_cpufreq_of_match[] = {
 	{ .compatible = "ti,omap36xx", .data = &omap36xx_soc_data, },
 	{ .compatible = "ti,am625", .data = &am625_soc_data, },
 	{ .compatible = "ti,am62a7", .data = &am62a7_soc_data, },
-	{ .compatible = "ti,am62p5", .data = &am625_soc_data, },
+	{ .compatible = "ti,am62p5", .data = &am62p5_soc_data, },
 	/* legacy */
 	{ .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },
 	{ .compatible = "ti,omap3630", .data = &omap36xx_soc_data, },

-- 
2.45.2