[PATCH 5.13 037/104] platform/x86: amd-pmc: Fix SMU firmware reporting mechanism

Greg Kroah-Hartman
2021-08-02T14:05:37Z

From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>

[ Upstream commit 4c06d35dfedf4c1fd03702e0f05292a69d020e21 ]

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.

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>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210629084803.248498-3-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/amd-pmc.c | 10 ----------
1 file changed, 10 deletions(-)

diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index 1b5f149932c1..b1d6175a13b2 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

@@ -89,11 +88,6 @@ 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);
@@ -280,10 +274,6 @@ 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)
--
2.30.2