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authorMario Limonciello <mario.limonciello@amd.com>2022-08-29 11:29:50 -0500
committerHans de Goede <hdegoede@redhat.com>2022-09-09 17:37:41 +0200
commite24faabf5f368c031ad50f0d915a01e1b591f536 (patch)
tree01233fbbe503ab6d0914d45a512e6cc68e55a9ab /drivers/platform/x86
parentACPI: s2idle: Add a new ->check() callback for platform_s2idle_ops (diff)
downloadlinux-dev-e24faabf5f368c031ad50f0d915a01e1b591f536.tar.xz
linux-dev-e24faabf5f368c031ad50f0d915a01e1b591f536.zip
platform/x86/amd: pmc: Add defines for STB events
Currently `amd-pmc` has two events, but just adds one to the first to distinguish the second. Add a clear definition what these events mean. Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20220829162953.5947-3-mario.limonciello@amd.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86')
-rw-r--r--drivers/platform/x86/amd/pmc.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/platform/x86/amd/pmc.c b/drivers/platform/x86/amd/pmc.c
index 700eb19e8450..39e6ab88861d 100644
--- a/drivers/platform/x86/amd/pmc.c
+++ b/drivers/platform/x86/amd/pmc.c
@@ -39,7 +39,8 @@
#define AMD_PMC_STB_INDEX_ADDRESS 0xF8
#define AMD_PMC_STB_INDEX_DATA 0xFC
#define AMD_PMC_STB_PMI_0 0x03E30600
-#define AMD_PMC_STB_PREDEF 0xC6000001
+#define AMD_PMC_STB_S2IDLE_PREPARE 0xC6000001
+#define AMD_PMC_STB_S2IDLE_RESTORE 0xC6000002
/* STB S2D(Spill to DRAM) has different message port offset */
#define STB_SPILL_TO_DRAM 0xBE
@@ -701,7 +702,7 @@ static void amd_pmc_s2idle_prepare(void)
}
if (enable_stb) {
- rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_PREDEF);
+ rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_S2IDLE_PREPARE);
if (rc)
dev_err(pdev->dev, "error writing to STB: %d\n", rc);
}
@@ -724,9 +725,8 @@ static void amd_pmc_s2idle_restore(void)
/* Dump the IdleMask to see the blockers */
amd_pmc_idlemask_read(pdev, pdev->dev, NULL);
- /* Write data incremented by 1 to distinguish in stb_read */
if (enable_stb) {
- rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_PREDEF + 1);
+ rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_S2IDLE_RESTORE);
if (rc)
dev_err(pdev->dev, "error writing to STB: %d\n", rc);
}