[PATCH 2/6] platform/x86: amd-pmc: Fix SMU firmware reporting mechanism

[Shyam Sundar S K <Shyam-sundar.S-k@amd.com>]

It was lately understood that the current mechanism available in the
driver to get SMU firmware info works only on internal SMU builds and
there is a separate way to get all the SMU logging counters (addressed
in the next patch). Hence remove all the smu info shown via debugfs as it
is no more useful.

Also, use dump registers routine only at one place i.e. after the command
submission to SMU is done.

Fixes: 156ec4731cb2 ("platform/x86: amd-pmc: Add AMD platform support for S2Idle")
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
---
 drivers/platform/x86/amd-pmc.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index 9c8a53120767..ce0e2ad94d09 100644
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -52,7 +52,6 @@
 #define AMD_CPU_ID_PCO			AMD_CPU_ID_RV
 #define AMD_CPU_ID_CZN			AMD_CPU_ID_RN
 
-#define AMD_SMU_FW_VERSION		0x0
 #define PMC_MSG_DELAY_MIN_US		100
 #define RESPONSE_REGISTER_LOOP_MAX	200
 
@@ -88,11 +87,6 @@ static inline void amd_pmc_reg_write(struct amd_pmc_dev *dev, int reg_offset, u3
 #ifdef CONFIG_DEBUG_FS
 static int smu_fw_info_show(struct seq_file *s, void *unused)
 {
-	struct amd_pmc_dev *dev = s->private;
-	u32 value;
-
-	value = ioread32(dev->smu_base + AMD_SMU_FW_VERSION);
-	seq_printf(s, "SMU FW Info: %x\n", value);
 	return 0;
 }
 DEFINE_SHOW_ATTRIBUTE(smu_fw_info);
@@ -164,6 +158,7 @@ static int amd_pmc_send_cmd(struct amd_pmc_dev *dev, bool set)
 		dev_err(dev->dev, "SMU response timed out\n");
 		return rc;
 	}
+	amd_pmc_dump_registers(dev);
 	return 0;
 }
 
@@ -176,7 +171,6 @@ static int __maybe_unused amd_pmc_suspend(struct device *dev)
 	if (rc)
 		dev_err(pdev->dev, "suspend failed\n");
 
-	amd_pmc_dump_registers(pdev);
 	return 0;
 }
 
@@ -189,7 +183,6 @@ static int __maybe_unused amd_pmc_resume(struct device *dev)
 	if (rc)
 		dev_err(pdev->dev, "resume failed\n");
 
-	amd_pmc_dump_registers(pdev);
 	return 0;
 }
 
@@ -256,17 +249,11 @@ static int amd_pmc_probe(struct platform_device *pdev)
 	pci_dev_put(rdev);
 	base_addr = ((u64)base_addr_hi << 32 | base_addr_lo);
 
-	dev->smu_base = devm_ioremap(dev->dev, base_addr, AMD_PMC_MAPPING_SIZE);
-	if (!dev->smu_base)
-		return -ENOMEM;
-
 	dev->regbase = devm_ioremap(dev->dev, base_addr + AMD_PMC_BASE_ADDR_OFFSET,
 				    AMD_PMC_MAPPING_SIZE);
 	if (!dev->regbase)
 		return -ENOMEM;
 
-	amd_pmc_dump_registers(dev);
-
 	platform_set_drvdata(pdev, dev);
 	amd_pmc_dbgfs_register(dev);
 	return 0;
-- 
2.25.1