[PATCH 1/2] platform/x86/amd/pmc: Fix fetching DRAM size mechanism

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

amd_pmc_get_dram_size() is used to get the DRAM size information. But in
the current code, mailbox command to get the DRAM size info is sent based
on the values of dev->major and dev->minor.

But dev->major and dev->minor will have either junk or zero assigned to
them until at least once a call to amd_pmc_get_smu_version() is made which
ideally populates dev->major and dev->minor.

Add a missing amd_pmc_get_smu_version() call to amd_pmc_get_dram_size().

Fixes: be8325fb3d8c ("platform/x86/amd: pmc: Get STB DRAM size from PMFW")
Suggested-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
---
based on review-ilpo, can be added on top of recent stb changes

 drivers/platform/x86/amd/pmc/pmc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/platform/x86/amd/pmc/pmc.c b/drivers/platform/x86/amd/pmc/pmc.c
index 1424c03c1f03..92adf4523736 100644
--- a/drivers/platform/x86/amd/pmc/pmc.c
+++ b/drivers/platform/x86/amd/pmc/pmc.c
@@ -981,6 +981,10 @@ static int amd_pmc_get_dram_size(struct amd_pmc_dev *dev)
 {
 	int ret;
 
+	ret = amd_pmc_get_smu_version(dev);
+	if (ret)
+		return ret;
+
 	switch (dev->cpu_id) {
 	case AMD_CPU_ID_YC:
 		if (!(dev->major > 90 || (dev->major == 90 && dev->minor > 39))) {
-- 
2.25.1