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authorMark Brown <broonie@kernel.org>2023-08-15 21:22:40 +0300
committerMark Brown <broonie@kernel.org>2023-08-15 21:22:40 +0300
commit7f0315ded4d5543d51346b60c72c0393d8ba9785 (patch)
treeff9d53d91d84a3e632d535d99bba66e1fbfdbd0f
parenta90a7a001624072f47c55716f74c5bc127e17656 (diff)
parent67bd793ba5e0984ecb7ee4407c2f79d159e305ff (diff)
downloadlinux-7f0315ded4d5543d51346b60c72c0393d8ba9785.tar.xz
ASoC: cs35l56: Don't patch firmware that is already
Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>: Use the FIRMWARE_MISSING flag in the CS35L56 to determine whether it is safe to download a firmware patch.
-rw-r--r--sound/soc/codecs/cs35l56.c19
-rw-r--r--sound/soc/codecs/wm_adsp.c16
-rw-r--r--sound/soc/codecs/wm_adsp.h2
3 files changed, 26 insertions, 11 deletions
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index 80e7fddae926..3a9ec8724cc1 100644
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -656,7 +656,7 @@ static void cs35l56_secure_patch(struct cs35l56_private *cs35l56)
int ret;
/* Use wm_adsp to load and apply the firmware patch and coefficient files */
- ret = wm_adsp_power_up(&cs35l56->dsp);
+ ret = wm_adsp_power_up(&cs35l56->dsp, true);
if (ret)
dev_dbg(cs35l56->base.dev, "%s: wm_adsp_power_up ret %d\n", __func__, ret);
else
@@ -665,8 +665,17 @@ static void cs35l56_secure_patch(struct cs35l56_private *cs35l56)
static void cs35l56_patch(struct cs35l56_private *cs35l56)
{
+ unsigned int firmware_missing;
int ret;
+ ret = regmap_read(cs35l56->base.regmap, CS35L56_PROTECTION_STATUS, &firmware_missing);
+ if (ret) {
+ dev_err(cs35l56->base.dev, "Failed to read PROTECTION_STATUS: %d\n", ret);
+ return;
+ }
+
+ firmware_missing &= CS35L56_FIRMWARE_MISSING;
+
/*
* Disable SoundWire interrupts to prevent race with IRQ work.
* Setting sdw_irq_no_unmask prevents the handler re-enabling
@@ -685,8 +694,12 @@ static void cs35l56_patch(struct cs35l56_private *cs35l56)
if (ret)
goto err;
- /* Use wm_adsp to load and apply the firmware patch and coefficient files */
- ret = wm_adsp_power_up(&cs35l56->dsp);
+ /*
+ * Use wm_adsp to load and apply the firmware patch and coefficient files,
+ * but only if firmware is missing. If firmware is already patched just
+ * power-up wm_adsp without downloading firmware.
+ */
+ ret = wm_adsp_power_up(&cs35l56->dsp, !!firmware_missing);
if (ret) {
dev_dbg(cs35l56->base.dev, "%s: wm_adsp_power_up ret %d\n", __func__, ret);
goto err;
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 13f500fa9a5f..6fc34f41b175 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -998,7 +998,7 @@ int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
}
EXPORT_SYMBOL_GPL(wm_adsp2_preloader_put);
-int wm_adsp_power_up(struct wm_adsp *dsp)
+int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware)
{
int ret = 0;
char *wmfw_filename = NULL;
@@ -1006,11 +1006,13 @@ int wm_adsp_power_up(struct wm_adsp *dsp)
char *coeff_filename = NULL;
const struct firmware *coeff_firmware = NULL;
- ret = wm_adsp_request_firmware_files(dsp,
- &wmfw_firmware, &wmfw_filename,
- &coeff_firmware, &coeff_filename);
- if (ret)
- return ret;
+ if (load_firmware) {
+ ret = wm_adsp_request_firmware_files(dsp,
+ &wmfw_firmware, &wmfw_filename,
+ &coeff_firmware, &coeff_filename);
+ if (ret)
+ return ret;
+ }
ret = cs_dsp_power_up(&dsp->cs_dsp,
wmfw_firmware, wmfw_filename,
@@ -1037,7 +1039,7 @@ static void wm_adsp_boot_work(struct work_struct *work)
struct wm_adsp,
boot_work);
- wm_adsp_power_up(dsp);
+ wm_adsp_power_up(dsp, true);
}
int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
diff --git a/sound/soc/codecs/wm_adsp.h b/sound/soc/codecs/wm_adsp.h
index 3044f964ac14..067d807a7ca8 100644
--- a/sound/soc/codecs/wm_adsp.h
+++ b/sound/soc/codecs/wm_adsp.h
@@ -91,7 +91,7 @@ int wm_adsp1_event(struct snd_soc_dapm_widget *w,
int wm_adsp_early_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event);
-int wm_adsp_power_up(struct wm_adsp *dsp);
+int wm_adsp_power_up(struct wm_adsp *dsp, bool load_firmware);
void wm_adsp_power_down(struct wm_adsp *dsp);
irqreturn_t wm_adsp2_bus_error(int irq, void *data);