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-rw-r--r--kernel/drivers/clk/tegra/cvb.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/kernel/drivers/clk/tegra/cvb.h b/kernel/drivers/clk/tegra/cvb.h
new file mode 100644
index 000000000..f62cdc4f4
--- /dev/null
+++ b/kernel/drivers/clk/tegra/cvb.h
@@ -0,0 +1,67 @@
+/*
+ * Utility functions for parsing Tegra CVB voltage tables
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef __DRIVERS_CLK_TEGRA_CVB_H
+#define __DRIVERS_CLK_TEGRA_CVB_H
+
+#include <linux/types.h>
+
+struct device;
+
+#define MAX_DVFS_FREQS 40
+
+struct rail_alignment {
+ int offset_uv;
+ int step_uv;
+};
+
+struct cvb_coefficients {
+ int c0;
+ int c1;
+ int c2;
+};
+
+struct cvb_table_freq_entry {
+ unsigned long freq;
+ struct cvb_coefficients coefficients;
+};
+
+struct cvb_cpu_dfll_data {
+ u32 tune0_low;
+ u32 tune0_high;
+ u32 tune1;
+};
+
+struct cvb_table {
+ int speedo_id;
+ int process_id;
+
+ int min_millivolts;
+ int max_millivolts;
+ struct rail_alignment alignment;
+
+ int speedo_scale;
+ int voltage_scale;
+ struct cvb_table_freq_entry cvb_table[MAX_DVFS_FREQS];
+ struct cvb_cpu_dfll_data cpu_dfll_data;
+};
+
+const struct cvb_table *tegra_cvb_build_opp_table(
+ const struct cvb_table *cvb_tables,
+ size_t sz, int process_id,
+ int speedo_id, int speedo_value,
+ unsigned long max_rate,
+ struct device *opp_dev);
+
+#endif