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454a348714
There are two functions in the olpc platform that have no prototype: arch/x86/platform/olpc/olpc_dt.c:237:13: error: no previous prototype for 'olpc_dt_fixup' [-Werror=missing-prototypes] arch/x86/platform/olpc/olpc-xo1-pm.c:73:26: error: no previous prototype for 'xo1_do_sleep' [-Werror=missing-prototypes] The first one should just be marked 'static' as there are no other callers, while the second one is called from assembler and is just a false-positive warning that can be silenced by adding a prototype. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Link: https://lore.kernel.org/all/20230516193549.544673-21-arnd%40kernel.org
76 lines
2 KiB
C
76 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_OLPC_EC_H
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#define _LINUX_OLPC_EC_H
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#include <linux/bits.h>
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/* XO-1 EC commands */
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#define EC_FIRMWARE_REV 0x08
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#define EC_WRITE_SCI_MASK 0x1b
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#define EC_WAKE_UP_WLAN 0x24
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#define EC_WLAN_LEAVE_RESET 0x25
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#define EC_DCON_POWER_MODE 0x26
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#define EC_READ_EB_MODE 0x2a
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#define EC_SET_SCI_INHIBIT 0x32
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#define EC_SET_SCI_INHIBIT_RELEASE 0x34
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#define EC_WLAN_ENTER_RESET 0x35
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#define EC_WRITE_EXT_SCI_MASK 0x38
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#define EC_SCI_QUERY 0x84
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#define EC_EXT_SCI_QUERY 0x85
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/* SCI source values */
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#define EC_SCI_SRC_GAME BIT(0)
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#define EC_SCI_SRC_BATTERY BIT(1)
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#define EC_SCI_SRC_BATSOC BIT(2)
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#define EC_SCI_SRC_BATERR BIT(3)
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#define EC_SCI_SRC_EBOOK BIT(4) /* XO-1 only */
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#define EC_SCI_SRC_WLAN BIT(5) /* XO-1 only */
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#define EC_SCI_SRC_ACPWR BIT(6)
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#define EC_SCI_SRC_BATCRIT BIT(7)
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#define EC_SCI_SRC_GPWAKE BIT(8) /* XO-1.5 only */
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#define EC_SCI_SRC_ALL GENMASK(8, 0)
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struct platform_device;
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struct olpc_ec_driver {
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int (*suspend)(struct platform_device *);
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int (*resume)(struct platform_device *);
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int (*ec_cmd)(u8, u8 *, size_t, u8 *, size_t, void *);
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bool wakeup_available;
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};
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#ifdef CONFIG_OLPC_EC
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extern void olpc_ec_driver_register(struct olpc_ec_driver *drv, void *arg);
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extern int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
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size_t outlen);
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extern void olpc_ec_wakeup_set(u16 value);
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extern void olpc_ec_wakeup_clear(u16 value);
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extern int olpc_ec_mask_write(u16 bits);
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extern int olpc_ec_sci_query(u16 *sci_value);
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extern bool olpc_ec_wakeup_available(void);
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asmlinkage int xo1_do_sleep(u8 sleep_state);
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#else
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static inline int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
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size_t outlen) { return -ENODEV; }
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static inline void olpc_ec_wakeup_set(u16 value) { }
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static inline void olpc_ec_wakeup_clear(u16 value) { }
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static inline bool olpc_ec_wakeup_available(void)
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{
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return false;
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}
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#endif /* CONFIG_OLPC_EC */
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#endif /* _LINUX_OLPC_EC_H */
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