From 7d8e9d79276492cbc66575a301d7ab8b92786699 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Wed, 30 Mar 2022 13:19:20 -0700 Subject: ASoC: SOF: Drop support for mapped control data Access through mmapped memory is not supported and it is explicitly disabled with scontrol->readback_offset = 0; when a control is created. Remove the dead code and the confusion around this feature. Signed-off-by: Peter Ujfalusi Reviewed-by: Pierre-Louis Bossart Reviewed-by: Kai Vehmanen Signed-off-by: Ranjani Sridharan Link: https://lore.kernel.org/r/20220330201926.1330402-6-ranjani.sridharan@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/sof/ipc.c | 22 ---------------------- 1 file changed, 22 deletions(-) (limited to 'sound/soc/sof/ipc.c') diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c index 166d4906698b..c722ca0b00a6 100644 --- a/sound/soc/sof/ipc.c +++ b/sound/soc/sof/ipc.c @@ -823,7 +823,6 @@ int snd_sof_ipc_set_get_comp_data(struct snd_sof_control *scontrol, bool set) enum sof_ipc_ctrl_type ctrl_type; struct snd_sof_widget *swidget; bool widget_found = false; - size_t send_bytes; u32 ipc_cmd; int err; @@ -847,27 +846,6 @@ int snd_sof_ipc_set_get_comp_data(struct snd_sof_control *scontrol, bool set) if (!swidget->use_count) return 0; - /* read or write firmware volume */ - if (scontrol->readback_offset != 0) { - /* write/read value header via mmaped region */ - send_bytes = sizeof(struct sof_ipc_ctrl_value_chan) * - cdata->num_elems; - if (set) - err = snd_sof_dsp_block_write(sdev, SOF_FW_BLK_TYPE_IRAM, - scontrol->readback_offset, - cdata->chanv, send_bytes); - - else - err = snd_sof_dsp_block_read(sdev, SOF_FW_BLK_TYPE_IRAM, - scontrol->readback_offset, - cdata->chanv, send_bytes); - - if (err) - dev_err_once(sdev->dev, "error: %s TYPE_IRAM failed\n", - set ? "write to" : "read from"); - return err; - } - /* * Select the IPC cmd and the ctrl_type based on the ctrl_cmd and the * direction -- cgit v1.2.3