platform/x86: amd-pmc: Fix compilation without CONFIG_SUSPEND

Since commit b1f66033cd4e ("platform/x86: amd-pmc: Move to later in the
suspend process") amd-pmc doesn't use traditional suspend resume
callback anymore but relies on functions only created declared when
CONFIG_SUSPEND is set.

Check for CONFIG_SUSPEND and only use those functions in those
circumstances.

Fixes: commit b1f66033cd4e ("platform/x86: amd-pmc: Move to later in the suspend process")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220402231122.3877-1-mario.limonciello@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index e9d0dbb..fa4123d 100644 (file)
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -160,8 +160,10 @@ MODULE_PARM_DESC(enable_stb, "Enable the STB debug mechanism");
 
 static struct amd_pmc_dev pmc;
 static int amd_pmc_send_cmd(struct amd_pmc_dev *dev, u32 arg, u32 *data, u8 msg, bool ret);
-static int amd_pmc_write_stb(struct amd_pmc_dev *dev, u32 data);
 static int amd_pmc_read_stb(struct amd_pmc_dev *dev, u32 *buf);
+#ifdef CONFIG_SUSPEND
+static int amd_pmc_write_stb(struct amd_pmc_dev *dev, u32 data);
+#endif
 
 static inline u32 amd_pmc_reg_read(struct amd_pmc_dev *dev, int reg_offset)
 {
@@ -325,6 +327,7 @@ static int get_metrics_table(struct amd_pmc_dev *pdev, struct smu_metrics *table
        return 0;
 }
 
+#ifdef CONFIG_SUSPEND
 static void amd_pmc_validate_deepest(struct amd_pmc_dev *pdev)
 {
        struct smu_metrics table;
@@ -338,6 +341,7 @@ static void amd_pmc_validate_deepest(struct amd_pmc_dev *pdev)
                dev_dbg(pdev->dev, "Last suspend in deepest state for %lluus\n",
                         table.timein_s0i3_lastcapture);
 }
+#endif
 
 #ifdef CONFIG_DEBUG_FS
 static int smu_fw_info_show(struct seq_file *s, void *unused)
@@ -569,6 +573,7 @@ out_unlock:
        return rc;
 }
 
+#ifdef CONFIG_SUSPEND
 static int amd_pmc_get_os_hint(struct amd_pmc_dev *dev)
 {
        switch (dev->cpu_id) {
@@ -694,6 +699,7 @@ static struct acpi_s2idle_dev_ops amd_pmc_s2idle_dev_ops = {
        .prepare = amd_pmc_s2idle_prepare,
        .restore = amd_pmc_s2idle_restore,
 };
+#endif
 
 static const struct pci_device_id pmc_pci_ids[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_YC) },
@@ -733,6 +739,7 @@ static int amd_pmc_s2d_init(struct amd_pmc_dev *dev)
        return 0;
 }
 
+#ifdef CONFIG_SUSPEND
 static int amd_pmc_write_stb(struct amd_pmc_dev *dev, u32 data)
 {
        int err;
@@ -753,6 +760,7 @@ static int amd_pmc_write_stb(struct amd_pmc_dev *dev, u32 data)
 
        return 0;
 }
+#endif
 
 static int amd_pmc_read_stb(struct amd_pmc_dev *dev, u32 *buf)
 {
@@ -859,9 +867,11 @@ static int amd_pmc_probe(struct platform_device *pdev)
 
        amd_pmc_get_smu_version(dev);
        platform_set_drvdata(pdev, dev);
+#ifdef CONFIG_SUSPEND
        err = acpi_register_lps0_dev(&amd_pmc_s2idle_dev_ops);
        if (err)
                dev_warn(dev->dev, "failed to register LPS0 sleep handler, expect increased power consumption\n");
+#endif
 
        amd_pmc_dbgfs_register(dev);
        return 0;
@@ -875,7 +885,9 @@ static int amd_pmc_remove(struct platform_device *pdev)
 {
        struct amd_pmc_dev *dev = platform_get_drvdata(pdev);
 
+#ifdef CONFIG_SUSPEND
        acpi_unregister_lps0_dev(&amd_pmc_s2idle_dev_ops);
+#endif
        amd_pmc_dbgfs_unregister(dev);
        pci_dev_put(dev->rdev);
        mutex_destroy(&dev->lock);