firmware: qcom_scm: Remove unused qcom_scm_get_version

Remove unused qcom_scm_get_version.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-4-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c
index 6e62f73627bac8232c2520b06f88672b70ac7002..8b5724069f278ec21cc307e30700a2567ca1ca68 100644 (file)
--- a/drivers/firmware/qcom_scm-32.c
+++ b/drivers/firmware/qcom_scm-32.c
@@ -292,42 +292,6 @@ static s32 qcom_scm_call_atomic2(u32 svc, u32 cmd, u32 arg1, u32 arg2)
        return r0;
 }
 
-u32 qcom_scm_get_version(void)
-{
-       int context_id;
-       static u32 version = -1;
-       register u32 r0 asm("r0");
-       register u32 r1 asm("r1");
-
-       if (version != -1)
-               return version;
-
-       mutex_lock(&qcom_scm_lock);
-
-       r0 = 0x1 << 8;
-       r1 = (u32)&context_id;
-       do {
-               asm volatile(
-                       __asmeq("%0", "r0")
-                       __asmeq("%1", "r1")
-                       __asmeq("%2", "r0")
-                       __asmeq("%3", "r1")
-#ifdef REQUIRES_SEC
-                       ".arch_extension sec\n"
-#endif
-                       "smc    #0      @ switch to secure world\n"
-                       : "=r" (r0), "=r" (r1)
-                       : "r" (r0), "r" (r1)
-                       : "r2", "r3", "r12");
-       } while (r0 == QCOM_SCM_INTERRUPTED);
-
-       version = r1;
-       mutex_unlock(&qcom_scm_lock);
-
-       return version;
-}
-EXPORT_SYMBOL(qcom_scm_get_version);
-
 /**
  * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus
  * @entry: Entry point function for the cpus

diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h
index 2c1d20312ce0b41fb2096871d5521f54161c7868..98e775d7a3ecd88094b295c6b04a74949f4969de 100644 (file)
--- a/include/linux/qcom_scm.h
+++ b/include/linux/qcom_scm.h
@@ -78,7 +78,6 @@ extern int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
                               const struct qcom_scm_vmperm *newvm,
                               unsigned int dest_cnt);
 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);
 extern bool qcom_scm_restore_sec_cfg_available(void);
 extern int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare);
@@ -123,7 +122,6 @@ static inline int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
                                      const struct qcom_scm_vmperm *newvm,
                                      unsigned int dest_cnt) { 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; }
 static inline bool qcom_scm_restore_sec_cfg_available(void) { return false; }