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cfff1997aa
'struct pmic_table' is not modified in these drivers. Constifying this structure moves some data to a read-only section, so increase overall security. On a x86_64, with allmodconfig, as an example: Before: ====== text data bss dec hex filename 3811 786 0 4597 11f5 drivers/acpi/pmic/intel_pmic_xpower.o text data bss dec hex filename 4147 450 0 4597 11f5 drivers/acpi/pmic/intel_pmic_xpower.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://patch.msgid.link/a6c9b1bcdf259adabbcaf91183d3f5ab87a98600.1719644292.git.christophe.jaillet@wanadoo.fr Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __INTEL_PMIC_H
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#define __INTEL_PMIC_H
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#include <acpi/acpi_lpat.h>
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struct pmic_table {
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int address; /* operation region address */
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int reg; /* corresponding thermal register */
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int bit; /* control bit for power */
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};
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struct intel_pmic_opregion_data {
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int (*get_power)(struct regmap *r, int reg, int bit, u64 *value);
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int (*update_power)(struct regmap *r, int reg, int bit, bool on);
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int (*get_raw_temp)(struct regmap *r, int reg);
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int (*update_aux)(struct regmap *r, int reg, int raw_temp);
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int (*get_policy)(struct regmap *r, int reg, int bit, u64 *value);
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int (*update_policy)(struct regmap *r, int reg, int bit, int enable);
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int (*exec_mipi_pmic_seq_element)(struct regmap *r, u16 i2c_address,
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u32 reg_address, u32 value, u32 mask);
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int (*lpat_raw_to_temp)(struct acpi_lpat_conversion_table *lpat_table,
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int raw);
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const struct pmic_table *power_table;
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int power_table_count;
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const struct pmic_table *thermal_table;
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int thermal_table_count;
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/* For generic exec_mipi_pmic_seq_element handling */
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int pmic_i2c_address;
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};
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int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
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struct regmap *regmap,
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const struct intel_pmic_opregion_data *d);
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#endif
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