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cpufreq: ti-cpufreq: Use socinfo to get revision in AM62 family

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In the AM62x, AM62Ax, and AM62Px devices, we already have the revision
info within the k3-socinfo driver. Hence, re-use this information from
there instead of re using the offset for 2 drivers trying to get the
same information ie. revision.

Signed-off-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Dhruva Gole 2024-09-02 14:51:35 +05:30 committed by Viresh Kumar
parent 87fa4bd351
commit 6b612d1bac
1 changed files with 19 additions and 0 deletions
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19
drivers/cpufreq/ti-cpufreq.c
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@ -16,6 +16,7 @@
#include <linux/pm_opp.h> #include <linux/pm_opp.h>
#include <linux/regmap.h> #include <linux/regmap.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/sys_soc.h>
#define REVISION_MASK 0xF #define REVISION_MASK 0xF
#define REVISION_SHIFT 28 #define REVISION_SHIFT 28
@ -303,6 +304,13 @@ static struct ti_cpufreq_soc_data am3517_soc_data = {
.quirks = TI_QUIRK_SYSCON_MAY_BE_MISSING, .quirks = TI_QUIRK_SYSCON_MAY_BE_MISSING,
}; };
static const struct soc_device_attribute k3_cpufreq_soc[] = {
{ .family = "AM62X", .revision = "SR1.0" },
{ .family = "AM62AX", .revision = "SR1.0" },
{ .family = "AM62PX", .revision = "SR1.0" },
{ /* sentinel */ }
};
static struct ti_cpufreq_soc_data am625_soc_data = { static struct ti_cpufreq_soc_data am625_soc_data = {
.efuse_xlate = am625_efuse_xlate, .efuse_xlate = am625_efuse_xlate,
.efuse_offset = 0x0018, .efuse_offset = 0x0018,
@ -384,6 +392,16 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data,
struct device *dev = opp_data->cpu_dev; struct device *dev = opp_data->cpu_dev;
u32 revision; u32 revision;
int ret; int ret;
if (soc_device_match(k3_cpufreq_soc)) {
/*
* Since the SR is 1.0, hard code the revision_value as
* 0x1 here. This way we avoid re using the same register
* that is giving us required information inside socinfo
* anyway.
*/
*revision_value = 0x1;
goto done;
}
ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset, ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset,
&revision); &revision);
@ -406,6 +424,7 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data,
*revision_value = BIT((revision >> REVISION_SHIFT) & REVISION_MASK); *revision_value = BIT((revision >> REVISION_SHIFT) & REVISION_MASK);
done:
return 0; return 0;
} }