Unverified Commit 62ddad42 authored by Richard Fitzgerald's avatar Richard Fitzgerald Committed by Mark Brown
Browse files

ASoC: wm_adsp: Support powering-up DSP without trying to load firmware 



Add a flag to wm_adsp_power_up() that indicates whether it should attempt
to find and load firmware files.

This is to support DSPs that have built-in firmware that may already have
been patched (for example, by the BIOS). In that case the patch must not
be overwritten because that could corrupt the running firmware.

Signed-off-by: default avatarRichard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230815124826.5447-2-rf@opensource.cirrus.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 62cc82e6

sound/soc/codecs/cs35l56.c

+2 −2
Original line number Diff line number Diff line
@@ -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
@@ -686,7 +686,7 @@ static void cs35l56_patch(struct cs35l56_private *cs35l56) 
		goto err;



	/* 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);

		goto err;

sound/soc/codecs/wm_adsp.c

+9 −7
Original line number Diff line number Diff line
@@ -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;



	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,

sound/soc/codecs/wm_adsp.h

+1 −1
Original line number Diff line number Diff line
@@ -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);