cpufreq: ti-cpufreq: add support for AM62L3 SoC

Add CPUFreq support for the AM62L3 SoC with the appropriate
AM62L3 speed grade constants according to the datasheet [1].

This follows the same architecture-specific implementation pattern
as other TI SoCs in the AM6x family.

While at it, also sort instances where the SOC family names
were not sorted alphabetically.

[1] https://www.ti.com/lit/pdf/SPRSPA1

Signed-off-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Kendall Willis <k-willis@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 6ee76f5fe9c567b0b88797ddb51764a2a5606b16..3d1129aeed02b06f5877663a1b87521a230e3b32 100644 (file)
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -70,6 +70,12 @@ enum {
 #define AM62A7_SUPPORT_R_MPU_OPP               BIT(1)
 #define AM62A7_SUPPORT_V_MPU_OPP               BIT(2)
 
+#define AM62L3_EFUSE_E_MPU_OPP                 5
+#define AM62L3_EFUSE_O_MPU_OPP                 15
+
+#define AM62L3_SUPPORT_E_MPU_OPP               BIT(0)
+#define AM62L3_SUPPORT_O_MPU_OPP               BIT(1)
+
 #define AM62P5_EFUSE_O_MPU_OPP                 15
 #define AM62P5_EFUSE_S_MPU_OPP                 19
 #define AM62P5_EFUSE_T_MPU_OPP                 20
@@ -213,6 +219,22 @@ static unsigned long am625_efuse_xlate(struct ti_cpufreq_data *opp_data,
        return calculated_efuse;
 }
 
+static unsigned long am62l3_efuse_xlate(struct ti_cpufreq_data *opp_data,
+                                      unsigned long efuse)
+{
+       unsigned long calculated_efuse = AM62L3_SUPPORT_E_MPU_OPP;
+
+       switch (efuse) {
+       case AM62L3_EFUSE_O_MPU_OPP:
+               calculated_efuse |= AM62L3_SUPPORT_O_MPU_OPP;
+               fallthrough;
+       case AM62L3_EFUSE_E_MPU_OPP:
+               calculated_efuse |= AM62L3_SUPPORT_E_MPU_OPP;
+       }
+
+       return calculated_efuse;
+}
+
 static struct ti_cpufreq_soc_data am3x_soc_data = {
        .efuse_xlate = amx3_efuse_xlate,
        .efuse_fallback = AM33XX_800M_ARM_MPU_MAX_FREQ,
@@ -313,8 +335,9 @@ static struct ti_cpufreq_soc_data am3517_soc_data = {
 static const struct soc_device_attribute k3_cpufreq_soc[] = {
        { .family = "AM62X", },
        { .family = "AM62AX", },
-       { .family = "AM62PX", },
        { .family = "AM62DX", },
+       { .family = "AM62LX", },
+       { .family = "AM62PX", },
        { /* sentinel */ }
 };
 
@@ -335,6 +358,14 @@ static struct ti_cpufreq_soc_data am62a7_soc_data = {
        .multi_regulator = false,
 };
 
+static struct ti_cpufreq_soc_data am62l3_soc_data = {
+       .efuse_xlate = am62l3_efuse_xlate,
+       .efuse_offset = 0x0,
+       .efuse_mask = 0x07c0,
+       .efuse_shift = 0x6,
+       .multi_regulator = false,
+};
+
 static struct ti_cpufreq_soc_data am62p5_soc_data = {
        .efuse_xlate = am62p5_efuse_xlate,
        .efuse_offset = 0x0,
@@ -463,6 +494,7 @@ static const struct of_device_id ti_cpufreq_of_match[]  __maybe_unused = {
        { .compatible = "ti,am625", .data = &am625_soc_data, },
        { .compatible = "ti,am62a7", .data = &am62a7_soc_data, },
        { .compatible = "ti,am62d2", .data = &am62a7_soc_data, },
+       { .compatible = "ti,am62l3", .data = &am62l3_soc_data, },
        { .compatible = "ti,am62p5", .data = &am62p5_soc_data, },
        /* legacy */
        { .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },