ASoC: SOF: Intel: hda-dsp: Declare locally used functions as static

The following functions can be made static as they are only used locally:
hda_dsp_core_reset_enter
hda_dsp_core_reset_leave
hda_dsp_core_stall_reset
hda_dsp_core_power_up
hda_dsp_core_power_down
hda_dsp_core_is_enabled

The hda_dsp_ipc_int_disable is also only used within hda-dsp.c, but for
symmetry for hda_dsp_ipc_int_enable (used by hda-loader.c) leave it as it
is.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210915071805.5704-2-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/hda-dsp.c

@@ -34,7 +34,7 @@ MODULE_PARM_DESC(enable_trace_D0I3_S0,
  * DSP Core control.
  */
 
-int hda_dsp_core_reset_enter(struct snd_sof_dev *sdev, unsigned int core_mask)
+static int hda_dsp_core_reset_enter(struct snd_sof_dev *sdev, unsigned int core_mask)
 {
 	u32 adspcs;
 	u32 reset;
@@ -73,7 +73,7 @@ int hda_dsp_core_reset_enter(struct snd_sof_dev *sdev, unsigned int core_mask)
 	return ret;
 }
 
-int hda_dsp_core_reset_leave(struct snd_sof_dev *sdev, unsigned int core_mask)
+static int hda_dsp_core_reset_leave(struct snd_sof_dev *sdev, unsigned int core_mask)
 {
 	unsigned int crst;
 	u32 adspcs;
@@ -113,7 +113,7 @@ int hda_dsp_core_reset_leave(struct snd_sof_dev *sdev, unsigned int core_mask)
 	return ret;
 }
 
-int hda_dsp_core_stall_reset(struct snd_sof_dev *sdev, unsigned int core_mask)
+static int hda_dsp_core_stall_reset(struct snd_sof_dev *sdev, unsigned int core_mask)
 {
 	/* stall core */
 	snd_sof_dsp_update_bits_unlocked(sdev, HDA_DSP_BAR,
@@ -125,6 +125,31 @@ int hda_dsp_core_stall_reset(struct snd_sof_dev *sdev, unsigned int core_mask)
 	return hda_dsp_core_reset_enter(sdev, core_mask);
 }
 
+static bool hda_dsp_core_is_enabled(struct snd_sof_dev *sdev, unsigned int core_mask)
+{
+	int val;
+	bool is_enable;
+
+	val = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPCS);
+
+#define MASK_IS_EQUAL(v, m, field) ({	\
+	u32 _m = field(m);		\
+	((v) & _m) == _m;		\
+})
+
+	is_enable = MASK_IS_EQUAL(val, core_mask, HDA_DSP_ADSPCS_CPA_MASK) &&
+		MASK_IS_EQUAL(val, core_mask, HDA_DSP_ADSPCS_SPA_MASK) &&
+		!(val & HDA_DSP_ADSPCS_CRST_MASK(core_mask)) &&
+		!(val & HDA_DSP_ADSPCS_CSTALL_MASK(core_mask));
+
+#undef MASK_IS_EQUAL
+
+	dev_dbg(sdev->dev, "DSP core(s) enabled? %d : core_mask %x\n",
+		is_enable, core_mask);
+
+	return is_enable;
+}
+
 int hda_dsp_core_run(struct snd_sof_dev *sdev, unsigned int core_mask)
 {
 	int ret;
@@ -156,7 +181,7 @@ int hda_dsp_core_run(struct snd_sof_dev *sdev, unsigned int core_mask)
  * Power Management.
  */
 
-int hda_dsp_core_power_up(struct snd_sof_dev *sdev, unsigned int core_mask)
+static int hda_dsp_core_power_up(struct snd_sof_dev *sdev, unsigned int core_mask)
 {
 	unsigned int cpa;
 	u32 adspcs;
@@ -195,7 +220,7 @@ int hda_dsp_core_power_up(struct snd_sof_dev *sdev, unsigned int core_mask)
 	return ret;
 }
 
-int hda_dsp_core_power_down(struct snd_sof_dev *sdev, unsigned int core_mask)
+static int hda_dsp_core_power_down(struct snd_sof_dev *sdev, unsigned int core_mask)
 {
 	u32 adspcs;
 	int ret;
@@ -218,32 +243,6 @@ int hda_dsp_core_power_down(struct snd_sof_dev *sdev, unsigned int core_mask)
 	return ret;
 }
 
-bool hda_dsp_core_is_enabled(struct snd_sof_dev *sdev,
-			     unsigned int core_mask)
-{
-	int val;
-	bool is_enable;
-
-	val = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPCS);
-
-#define MASK_IS_EQUAL(v, m, field) ({	\
-	u32 _m = field(m);		\
-	((v) & _m) == _m;		\
-})
-
-	is_enable = MASK_IS_EQUAL(val, core_mask, HDA_DSP_ADSPCS_CPA_MASK) &&
-		MASK_IS_EQUAL(val, core_mask, HDA_DSP_ADSPCS_SPA_MASK) &&
-		!(val & HDA_DSP_ADSPCS_CRST_MASK(core_mask)) &&
-		!(val & HDA_DSP_ADSPCS_CSTALL_MASK(core_mask));
-
-#undef MASK_IS_EQUAL
-
-	dev_dbg(sdev->dev, "DSP core(s) enabled? %d : core_mask %x\n",
-		is_enable, core_mask);
-
-	return is_enable;
-}
-
 int hda_dsp_enable_core(struct snd_sof_dev *sdev, unsigned int core_mask)
 {
 	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;

sound/soc/sof/intel/hda.h

@@ -492,17 +492,8 @@ struct sof_intel_hda_stream {
  */
 int hda_dsp_probe(struct snd_sof_dev *sdev);
 int hda_dsp_remove(struct snd_sof_dev *sdev);
-int hda_dsp_core_reset_enter(struct snd_sof_dev *sdev,
-			     unsigned int core_mask);
-int hda_dsp_core_reset_leave(struct snd_sof_dev *sdev,
-			     unsigned int core_mask);
-int hda_dsp_core_stall_reset(struct snd_sof_dev *sdev, unsigned int core_mask);
 int hda_dsp_core_run(struct snd_sof_dev *sdev, unsigned int core_mask);
-int hda_dsp_core_power_up(struct snd_sof_dev *sdev, unsigned int core_mask);
 int hda_dsp_enable_core(struct snd_sof_dev *sdev, unsigned int core_mask);
-int hda_dsp_core_power_down(struct snd_sof_dev *sdev, unsigned int core_mask);
-bool hda_dsp_core_is_enabled(struct snd_sof_dev *sdev,
-			     unsigned int core_mask);
 int hda_dsp_core_reset_power_down(struct snd_sof_dev *sdev,
 				  unsigned int core_mask);
 void hda_dsp_ipc_int_enable(struct snd_sof_dev *sdev);