46 lines
1.9 KiB
Diff
46 lines
1.9 KiB
Diff
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CPR (Core Power Reduction) is Qualcomm's implementation of AVS (Adaptive Voltage Scaling).
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Dynamic undervolting essentially. It depends on some calibration values encoded
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in fuses. This patch dumps the fuse values in the downstream kernel which is useful
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to check if the mainline driver is working correctly.
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diff --git a/drivers/regulator/cpr-regulator.c b/drivers/regulator/cpr-regulator.c
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index 8637d78c..880482b5 100644
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--- a/drivers/regulator/cpr-regulator.c
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+++ b/drivers/regulator/cpr-regulator.c
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@@ -3350,6 +3350,26 @@ static int cpr_init_cpr_parameters(struct platform_device *pdev,
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return 0;
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}
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+static void cpr_dump(struct cpr_regulator *cpr_vreg)
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+{
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+ int i;
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+
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+ cpr_info(cpr_vreg, "pvs_bin: %u, speed_bin: %u, pvs_version: %u\n",
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+ cpr_vreg->pvs_bin, cpr_vreg->speed_bin, cpr_vreg->pvs_version);
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+
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+ for (i = CPR_FUSE_CORNER_MIN; i <= cpr_vreg->num_fuse_corners; i++) {
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+ cpr_info(cpr_vreg, "FUSE[%d]: pvs_corner_v: %u, cpr_fuse_target_quot: %u, cpr_fuse_ro_sel: %u, fuse_ceiling_volt: %u, fuse_floor_volt: %u, step_quotient: %u\n",
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+ i, cpr_vreg->pvs_corner_v[i], cpr_vreg->cpr_fuse_target_quot[i], cpr_vreg->cpr_fuse_ro_sel[i],
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+ cpr_vreg->fuse_ceiling_volt[i], cpr_vreg->fuse_floor_volt[i],
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+ cpr_vreg->step_quotient[i]);
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+ }
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+
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+ for (i = CPR_CORNER_MIN; i <= cpr_vreg->num_corners; i++) {
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+ cpr_info(cpr_vreg, "CORNER[%d]: ceiling_volt: %u, floor_volt: %u, last_volt: %u, open_loop_volt: %u, quot_adjust: %u\n",
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+ i, cpr_vreg->ceiling_volt[i], cpr_vreg->floor_volt[i], cpr_vreg->last_volt[i], cpr_vreg->open_loop_volt[i], cpr_vreg->quot_adjust[i]);
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+ }
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+}
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+
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static int cpr_init_cpr(struct platform_device *pdev,
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struct cpr_regulator *cpr_vreg)
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{
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@@ -3411,6 +3431,8 @@ static int cpr_init_cpr(struct platform_device *pdev,
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if (rc)
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return rc;
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+ cpr_dump(cpr_vreg);
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+
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/* Get and Init interrupt */
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cpr_vreg->cpr_irq = platform_get_irq(pdev, 0);
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if (!cpr_vreg->cpr_irq) {
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