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path: root/drivers/firmware/cirrus
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Diffstat (limited to 'drivers/firmware/cirrus')
-rw-r--r--drivers/firmware/cirrus/Kconfig2
-rw-r--r--drivers/firmware/cirrus/Makefile2
-rw-r--r--drivers/firmware/cirrus/cs_dsp.c79
3 files changed, 45 insertions, 38 deletions
diff --git a/drivers/firmware/cirrus/Kconfig b/drivers/firmware/cirrus/Kconfig
index f9503cb481d2..3ccbe14e4b0c 100644
--- a/drivers/firmware/cirrus/Kconfig
+++ b/drivers/firmware/cirrus/Kconfig
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
-config CS_DSP
+config FW_CS_DSP
tristate
default n
diff --git a/drivers/firmware/cirrus/Makefile b/drivers/firmware/cirrus/Makefile
index f074e2638c9c..b91318ca0ff4 100644
--- a/drivers/firmware/cirrus/Makefile
+++ b/drivers/firmware/cirrus/Makefile
@@ -1,3 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
#
-obj-$(CONFIG_CS_DSP) += cs_dsp.o
+obj-$(CONFIG_FW_CS_DSP) += cs_dsp.o
diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c
index 81cc3d0f6eec..f558b390fbfe 100644
--- a/drivers/firmware/cirrus/cs_dsp.c
+++ b/drivers/firmware/cirrus/cs_dsp.c
@@ -369,7 +369,7 @@ const char *cs_dsp_mem_region_name(unsigned int type)
return NULL;
}
}
-EXPORT_SYMBOL_GPL(cs_dsp_mem_region_name);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_mem_region_name, FW_CS_DSP);
#ifdef CONFIG_DEBUG_FS
static void cs_dsp_debugfs_save_wmfwname(struct cs_dsp *dsp, const char *s)
@@ -480,7 +480,7 @@ void cs_dsp_init_debugfs(struct cs_dsp *dsp, struct dentry *debugfs_root)
dsp->debugfs_root = root;
}
-EXPORT_SYMBOL_GPL(cs_dsp_init_debugfs);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_init_debugfs, FW_CS_DSP);
/**
* cs_dsp_cleanup_debugfs() - Removes DSP representation from debugfs
@@ -492,17 +492,17 @@ void cs_dsp_cleanup_debugfs(struct cs_dsp *dsp)
debugfs_remove_recursive(dsp->debugfs_root);
dsp->debugfs_root = NULL;
}
-EXPORT_SYMBOL_GPL(cs_dsp_cleanup_debugfs);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_cleanup_debugfs, FW_CS_DSP);
#else
void cs_dsp_init_debugfs(struct cs_dsp *dsp, struct dentry *debugfs_root)
{
}
-EXPORT_SYMBOL_GPL(cs_dsp_init_debugfs);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_init_debugfs, FW_CS_DSP);
void cs_dsp_cleanup_debugfs(struct cs_dsp *dsp)
{
}
-EXPORT_SYMBOL_GPL(cs_dsp_cleanup_debugfs);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_cleanup_debugfs, FW_CS_DSP);
static inline void cs_dsp_debugfs_save_wmfwname(struct cs_dsp *dsp,
const char *s)
@@ -710,7 +710,7 @@ int cs_dsp_coeff_write_acked_control(struct cs_dsp_coeff_ctl *ctl, unsigned int
return -ETIMEDOUT;
}
-EXPORT_SYMBOL_GPL(cs_dsp_coeff_write_acked_control);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_coeff_write_acked_control, FW_CS_DSP);
static int cs_dsp_coeff_write_ctrl_raw(struct cs_dsp_coeff_ctl *ctl,
unsigned int off, const void *buf, size_t len)
@@ -752,7 +752,7 @@ static int cs_dsp_coeff_write_ctrl_raw(struct cs_dsp_coeff_ctl *ctl,
*
* Must be called with pwr_lock held.
*
- * Return: Zero for success, a negative number on error.
+ * Return: < 0 on error, 1 when the control value changed and 0 when it has not.
*/
int cs_dsp_coeff_write_ctrl(struct cs_dsp_coeff_ctl *ctl,
unsigned int off, const void *buf, size_t len)
@@ -767,18 +767,25 @@ int cs_dsp_coeff_write_ctrl(struct cs_dsp_coeff_ctl *ctl,
if (len + off * sizeof(u32) > ctl->len)
return -EINVAL;
- if (ctl->flags & WMFW_CTL_FLAG_VOLATILE)
+ if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) {
ret = -EPERM;
- else if (buf != ctl->cache)
- memcpy(ctl->cache + off * sizeof(u32), buf, len);
+ } else if (buf != ctl->cache) {
+ if (memcmp(ctl->cache + off * sizeof(u32), buf, len))
+ memcpy(ctl->cache + off * sizeof(u32), buf, len);
+ else
+ return 0;
+ }
ctl->set = 1;
if (ctl->enabled && ctl->dsp->running)
ret = cs_dsp_coeff_write_ctrl_raw(ctl, off, buf, len);
- return ret;
+ if (ret < 0)
+ return ret;
+
+ return 1;
}
-EXPORT_SYMBOL_GPL(cs_dsp_coeff_write_ctrl);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_coeff_write_ctrl, FW_CS_DSP);
static int cs_dsp_coeff_read_ctrl_raw(struct cs_dsp_coeff_ctl *ctl,
unsigned int off, void *buf, size_t len)
@@ -850,7 +857,7 @@ int cs_dsp_coeff_read_ctrl(struct cs_dsp_coeff_ctl *ctl,
return ret;
}
-EXPORT_SYMBOL_GPL(cs_dsp_coeff_read_ctrl);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_coeff_read_ctrl, FW_CS_DSP);
static int cs_dsp_coeff_init_control_caches(struct cs_dsp *dsp)
{
@@ -1493,7 +1500,7 @@ struct cs_dsp_coeff_ctl *cs_dsp_get_ctl(struct cs_dsp *dsp, const char *name, in
return rslt;
}
-EXPORT_SYMBOL_GPL(cs_dsp_get_ctl);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_get_ctl, FW_CS_DSP);
static void cs_dsp_ctl_fixup_base(struct cs_dsp *dsp,
const struct cs_dsp_alg_region *alg_region)
@@ -1583,7 +1590,7 @@ struct cs_dsp_alg_region *cs_dsp_find_alg_region(struct cs_dsp *dsp,
return NULL;
}
-EXPORT_SYMBOL_GPL(cs_dsp_find_alg_region);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_find_alg_region, FW_CS_DSP);
static struct cs_dsp_alg_region *cs_dsp_create_region(struct cs_dsp *dsp,
int type, __be32 id,
@@ -2217,7 +2224,7 @@ int cs_dsp_adsp1_init(struct cs_dsp *dsp)
return cs_dsp_common_init(dsp);
}
-EXPORT_SYMBOL_GPL(cs_dsp_adsp1_init);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp1_init, FW_CS_DSP);
/**
* cs_dsp_adsp1_power_up() - Load and start the named firmware
@@ -2309,7 +2316,7 @@ err_mutex:
mutex_unlock(&dsp->pwr_lock);
return ret;
}
-EXPORT_SYMBOL_GPL(cs_dsp_adsp1_power_up);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp1_power_up, FW_CS_DSP);
/**
* cs_dsp_adsp1_power_down() - Halts the DSP
@@ -2341,7 +2348,7 @@ void cs_dsp_adsp1_power_down(struct cs_dsp *dsp)
mutex_unlock(&dsp->pwr_lock);
}
-EXPORT_SYMBOL_GPL(cs_dsp_adsp1_power_down);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp1_power_down, FW_CS_DSP);
static int cs_dsp_adsp2v2_enable_core(struct cs_dsp *dsp)
{
@@ -2493,7 +2500,7 @@ int cs_dsp_set_dspclk(struct cs_dsp *dsp, unsigned int freq)
return ret;
}
-EXPORT_SYMBOL_GPL(cs_dsp_set_dspclk);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_set_dspclk, FW_CS_DSP);
static void cs_dsp_stop_watchdog(struct cs_dsp *dsp)
{
@@ -2583,7 +2590,7 @@ err_mutex:
return ret;
}
-EXPORT_SYMBOL_GPL(cs_dsp_power_up);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_power_up, FW_CS_DSP);
/**
* cs_dsp_power_down() - Powers-down the DSP
@@ -2617,7 +2624,7 @@ void cs_dsp_power_down(struct cs_dsp *dsp)
cs_dsp_dbg(dsp, "Shutdown complete\n");
}
-EXPORT_SYMBOL_GPL(cs_dsp_power_down);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_power_down, FW_CS_DSP);
static int cs_dsp_adsp2_start_core(struct cs_dsp *dsp)
{
@@ -2703,7 +2710,7 @@ err:
return ret;
}
-EXPORT_SYMBOL_GPL(cs_dsp_run);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_run, FW_CS_DSP);
/**
* cs_dsp_stop() - Stops the firmware
@@ -2742,7 +2749,7 @@ void cs_dsp_stop(struct cs_dsp *dsp)
cs_dsp_dbg(dsp, "Execution stopped\n");
}
-EXPORT_SYMBOL_GPL(cs_dsp_stop);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_stop, FW_CS_DSP);
static int cs_dsp_halo_start_core(struct cs_dsp *dsp)
{
@@ -2804,7 +2811,7 @@ int cs_dsp_adsp2_init(struct cs_dsp *dsp)
return cs_dsp_common_init(dsp);
}
-EXPORT_SYMBOL_GPL(cs_dsp_adsp2_init);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp2_init, FW_CS_DSP);
/**
* cs_dsp_halo_init() - Initialise a cs_dsp structure representing a HALO Core DSP
@@ -2818,7 +2825,7 @@ int cs_dsp_halo_init(struct cs_dsp *dsp)
return cs_dsp_common_init(dsp);
}
-EXPORT_SYMBOL_GPL(cs_dsp_halo_init);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_halo_init, FW_CS_DSP);
/**
* cs_dsp_remove() - Clean a cs_dsp before deletion
@@ -2838,7 +2845,7 @@ void cs_dsp_remove(struct cs_dsp *dsp)
cs_dsp_free_ctl_blk(ctl);
}
}
-EXPORT_SYMBOL_GPL(cs_dsp_remove);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_remove, FW_CS_DSP);
/**
* cs_dsp_read_raw_data_block() - Reads a block of data from DSP memory
@@ -2875,7 +2882,7 @@ int cs_dsp_read_raw_data_block(struct cs_dsp *dsp, int mem_type, unsigned int me
return 0;
}
-EXPORT_SYMBOL_GPL(cs_dsp_read_raw_data_block);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_read_raw_data_block, FW_CS_DSP);
/**
* cs_dsp_read_data_word() - Reads a word from DSP memory
@@ -2899,7 +2906,7 @@ int cs_dsp_read_data_word(struct cs_dsp *dsp, int mem_type, unsigned int mem_add
return 0;
}
-EXPORT_SYMBOL_GPL(cs_dsp_read_data_word);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_read_data_word, FW_CS_DSP);
/**
* cs_dsp_write_data_word() - Writes a word to DSP memory
@@ -2925,7 +2932,7 @@ int cs_dsp_write_data_word(struct cs_dsp *dsp, int mem_type, unsigned int mem_ad
return regmap_raw_write(dsp->regmap, reg, &val, sizeof(val));
}
-EXPORT_SYMBOL_GPL(cs_dsp_write_data_word);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_write_data_word, FW_CS_DSP);
/**
* cs_dsp_remove_padding() - Convert unpacked words to packed bytes
@@ -2949,7 +2956,7 @@ void cs_dsp_remove_padding(u32 *buf, int nwords)
*pack_out++ = (u8)(word >> 16);
}
}
-EXPORT_SYMBOL_GPL(cs_dsp_remove_padding);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_remove_padding, FW_CS_DSP);
/**
* cs_dsp_adsp2_bus_error() - Handle a DSP bus error interrupt
@@ -3019,7 +3026,7 @@ void cs_dsp_adsp2_bus_error(struct cs_dsp *dsp)
error:
mutex_unlock(&dsp->pwr_lock);
}
-EXPORT_SYMBOL_GPL(cs_dsp_adsp2_bus_error);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp2_bus_error, FW_CS_DSP);
/**
* cs_dsp_halo_bus_error() - Handle a DSP bus error interrupt
@@ -3079,7 +3086,7 @@ void cs_dsp_halo_bus_error(struct cs_dsp *dsp)
exit_unlock:
mutex_unlock(&dsp->pwr_lock);
}
-EXPORT_SYMBOL_GPL(cs_dsp_halo_bus_error);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_halo_bus_error, FW_CS_DSP);
/**
* cs_dsp_halo_wdt_expire() - Handle DSP watchdog expiry
@@ -3099,7 +3106,7 @@ void cs_dsp_halo_wdt_expire(struct cs_dsp *dsp)
mutex_unlock(&dsp->pwr_lock);
}
-EXPORT_SYMBOL_GPL(cs_dsp_halo_wdt_expire);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_halo_wdt_expire, FW_CS_DSP);
static const struct cs_dsp_ops cs_dsp_adsp1_ops = {
.validate_version = cs_dsp_validate_version,
@@ -3221,7 +3228,7 @@ int cs_dsp_chunk_write(struct cs_dsp_chunk *ch, int nbits, u32 val)
return 0;
}
-EXPORT_SYMBOL_GPL(cs_dsp_chunk_write);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_chunk_write, FW_CS_DSP);
/**
* cs_dsp_chunk_flush() - Pad remaining data with zero and commit to chunk
@@ -3240,7 +3247,7 @@ int cs_dsp_chunk_flush(struct cs_dsp_chunk *ch)
return cs_dsp_chunk_write(ch, CS_DSP_DATA_WORD_BITS - ch->cachebits, 0);
}
-EXPORT_SYMBOL_GPL(cs_dsp_chunk_flush);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_chunk_flush, FW_CS_DSP);
/**
* cs_dsp_chunk_read() - Parse data from a DSP memory chunk
@@ -3282,7 +3289,7 @@ int cs_dsp_chunk_read(struct cs_dsp_chunk *ch, int nbits)
return result;
}
-EXPORT_SYMBOL_GPL(cs_dsp_chunk_read);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_chunk_read, FW_CS_DSP);
MODULE_DESCRIPTION("Cirrus Logic DSP Support");
MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");