ASoC: SOF: ops: add readb/writeb helpers

These will be used to add more consistency in the SOF core and
drivers.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20221024165310.246183-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/ops.h b/sound/soc/sof/ops.h
index a72f804..511c798 100644 (file)
--- a/sound/soc/sof/ops.h
+++ b/sound/soc/sof/ops.h
@@ -302,6 +302,15 @@ static inline int snd_sof_debugfs_add_region_item(struct snd_sof_dev *sdev,
 }
 
 /* register IO */
+static inline void snd_sof_dsp_writeb(struct snd_sof_dev *sdev, u32 bar,
+                                     u32 offset, u8 value)
+{
+       if (sof_ops(sdev)->writeb)
+               sof_ops(sdev)->writeb(sdev, sdev->bar[bar] + offset, value);
+       else
+               writeb(value,  sdev->bar[bar] + offset);
+}
+
 static inline void snd_sof_dsp_write(struct snd_sof_dev *sdev, u32 bar,
                                     u32 offset, u32 value)
 {
@@ -320,6 +329,15 @@ static inline void snd_sof_dsp_write64(struct snd_sof_dev *sdev, u32 bar,
                writeq(value, sdev->bar[bar] + offset);
 }
 
+static inline u8 snd_sof_dsp_readb(struct snd_sof_dev *sdev, u32 bar,
+                                  u32 offset)
+{
+       if (sof_ops(sdev)->readb)
+               return sof_ops(sdev)->readb(sdev, sdev->bar[bar] + offset);
+       else
+               return readb(sdev->bar[bar] + offset);
+}
+
 static inline u32 snd_sof_dsp_read(struct snd_sof_dev *sdev, u32 bar,
                                   u32 offset)
 {

diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 403e812..d3ede97 100644 (file)
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -171,6 +171,10 @@ struct snd_sof_dsp_ops {
         * TODO: consider removing these operations and calling respective
         * implementations directly
         */
+       void (*writeb)(struct snd_sof_dev *sof_dev, void __iomem *addr,
+                      u8 value); /* optional */
+       u8 (*readb)(struct snd_sof_dev *sof_dev,
+                   void __iomem *addr); /* optional */
        void (*write)(struct snd_sof_dev *sof_dev, void __iomem *addr,
                      u32 value); /* optional */
        u32 (*read)(struct snd_sof_dev *sof_dev,