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firmware: qcom_scm: Add set remote state API

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This patch adds a set remote state SCM API.  This will be used by the
Venus and GPU subsystems to set state on the remote processors.

This work was based on two patch sets by Jordan Crouse and Stanimir
Varbanov.

Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Andy Gross
2017-01-16 23:24:15 -06:00
parent 472cef345c
commit a811b420b6
5 changed files with 45 additions and 1 deletions
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4
include/linux/qcom_scm.h
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@@ -39,6 +39,7 @@ extern int qcom_scm_pas_auth_and_reset(u32 peripheral);
extern int qcom_scm_pas_shutdown(u32 peripheral);
extern void qcom_scm_cpu_power_down(u32 flags);
extern u32 qcom_scm_get_version(void);
extern int qcom_scm_set_remote_state(u32 state, u32 id);
#else
static inline
int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
@@ -64,6 +65,7 @@ qcom_scm_pas_auth_and_reset(u32 peripheral) { return -ENODEV; }
static inline int qcom_scm_pas_shutdown(u32 peripheral) { return -ENODEV; }
static inline void qcom_scm_cpu_power_down(u32 flags) {}
static inline u32 qcom_scm_get_version(void) { return 0; }
static inline u32
qcom_scm_set_remote_state(u32 state,u32 id) { return -ENODEV; }
#endif
#endif