diff mbox series

[v5,03/17] firmware: qcom_scm: Remove unused qcom_scm_get_version

Message ID 1578431066-19600-4-git-send-email-eberman@codeaurora.org (mailing list archive)
State Accepted
Commit 9a1108d2b001cda1af17160c78afedfff92e2202
Headers show
Series Restructure, improve target support for qcom_scm driver | expand

Commit Message

Elliot Berman Jan. 7, 2020, 9:04 p.m. UTC 
Remove unused qcom_scm_get_version.

Change-Id: I7e638d3ece7a2d52b51f570bb680cf3c5dcdc347
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>
---
 drivers/firmware/qcom_scm-32.c | 36 ------------------------------------
 include/linux/qcom_scm.h       |  2 --
 2 files changed, 38 deletions(-)
diff mbox series

Patch

diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c
index 6e62f73..8b57240 100644
--- 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 2c1d203..98e775d 100644
--- 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; }