Revert "ALSA: hda - Add firmware caching to CA0132 codec"

This reverts commit c3b4eea2.

Since the recent firmware loader code supports caching at S3/S4 by
itself, we don't have to handle f/w caching in the driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_ca0132.c

@@ -2602,24 +2602,6 @@ static int dspload_image(struct hda_codec *codec,
 	return status;
 }
 
-static const struct firmware *fw_efx;
-
-static int request_firmware_cached(const struct firmware **firmware_p,
-	const char *name, struct device *device)
-{
-	if (*firmware_p)
-		return 0;  /* already loaded */
-	return request_firmware(firmware_p, name, device);
-}
-
-static void release_cached_firmware(void)
-{
-	if (fw_efx) {
-		release_firmware(fw_efx);
-		fw_efx = NULL;
-	}
-}
-
 static bool dspload_is_loaded(struct hda_codec *codec)
 {
 	unsigned int data = 0;
@@ -4351,15 +4333,18 @@ static bool ca0132_download_dsp_images(struct hda_codec *codec)
 {
 	bool dsp_loaded = false;
 	const struct dsp_image_seg *dsp_os_image;
+	const struct firmware *fw_entry;
 
-	if (request_firmware_cached(&fw_efx, EFX_FILE,
-				    codec->bus->card->dev) != 0)
+	if (request_firmware(&fw_entry, EFX_FILE, codec->bus->card->dev) != 0)
 		return false;
 
-	dsp_os_image = (struct dsp_image_seg *)(fw_efx->data);
+	dsp_os_image = (struct dsp_image_seg *)(fw_entry->data);
 	dspload_image(codec, dsp_os_image, 0, 0, true, 0);
 	dsp_loaded = dspload_wait_loaded(codec);
 
+	release_firmware(fw_entry);
+
+
 	return dsp_loaded;
 }
 
@@ -4701,7 +4686,6 @@ static int __init patch_ca0132_init(void)
 
 static void __exit patch_ca0132_exit(void)
 {
-	release_cached_firmware();
 	snd_hda_delete_codec_preset(&ca0132_list);
 }