more exported functions (8d9930c5) · Commits · Elphel / linux-elphel

drivers/misc/ltc3589.c

+33 −18

Original line number	Diff line number	Diff line
		@@ -17,7 +17,7 @@
		*! You should have received a copy of the GNU General Public License
		*! along with this program. If not, see <http://www.gnu.org/licenses/>.
		*/

		#undef DEBUG /* should be before linux/module.h - enables dev_dbg at boot in this file */
		#include <linux/init.h>
		#include <linux/kernel.h>
		#include <linux/module.h>
		@@ -175,17 +175,32 @@ static void ltc3589_init_of(struct i2c_client *client);
		static int ltc3589_i2c_probe(struct i2c_client client, const struct i2c_device_id id);
		static int ltc3589_i2c_remove(struct i2c_client *client);

		int read_field_ltc3589 (struct i2c_client *client, u32 awe)
		int ltc3589_read_field (struct i2c_client *client, u32 awe)
		{
		return read_field (client, awe);
		}
		EXPORT_SYMBOL_GPL(read_field_ltc3589);
		EXPORT_SYMBOL_GPL(ltc3589_read_field);

		int write_field_ltc3589 (struct i2c_client *client, u8 data, u32 awe)
		int ltc3589_write_field (struct i2c_client *client, u8 data, u32 awe)
		{
		return write_field (client, data, awe);
		}
		EXPORT_SYMBOL_GPL(write_field_ltc3589);
		EXPORT_SYMBOL_GPL(ltc3589_write_field);

		int ltc3589_write_adwe(struct i2c_client *client, u32 adwe)
		{
		return write_adwe(client, adwe);
		}
		EXPORT_SYMBOL_GPL(ltc3589_write_adwe);


		void ltc3589_set_simulate(struct i2c_client *client, int simulate)
		{
		struct ltc3589_data_t *clientdata=i2c_get_clientdata(client);
		clientdata->simulate=simulate;
		}
		EXPORT_SYMBOL_GPL(ltc3589_set_simulate);


		/* raw access to i2c registers, need to set address (9 bits) first, then r/w data */

		@@ -915,6 +930,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		};
		struct ltc3589_setup_data setup_data;
		__be32 * setup_data_be32= (__be32 *) &setup_data;
		/* add stuff */
		#if 0
		if (node) {
		init_type_string = of_get_property(client->dev.of_node, "ltc3589,init", &len);
		@@ -934,7 +950,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		return;
		} else if (i>0){
		init_type=0;
		dev_info(&client->dev,"Skipping conditional initialization (some driver variables will not be initialized)\n");
		dev_dbg(&client->dev,"Skipping conditional initialization (some driver variables will not be initialized)\n");
		return;
		}
		init_type=1;
		@@ -948,7 +964,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		if (config_data){
		len /= sizeof(*config_data);
		dev_dbg(&client->dev,"Read %d values\n",len);
		dev_info(&client->dev,"Found %d items in 'ltc3589,configuration_data' in the Device Tree\n",len);
		dev_dbg(&client->dev,"Found %d items in 'ltc3589,configuration_data' in the Device Tree\n",len);
		for (i=0;i<len;i++){
		*setup_data_be32=config_data[i];
		page_reg=setup_data.reg+(setup_data.page<<8);
		@@ -963,7 +979,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		sprintf(buf,"ltc3589,%s",in_freq_names[n]);
		config_data = of_get_property(client->dev.of_node, buf, &len);
		if (config_data && (len>0)){
		dev_info(&client->dev,"Found '%s', value = %d (0x%x)\n",buf,(int)(be32_to_cpup(config_data)),(int)(be32_to_cpup(config_data)));
		dev_dbg(&client->dev,"Found '%s', value = %d (0x%x)\n",buf,(int)(be32_to_cpup(config_data)),(int)(be32_to_cpup(config_data)));
		if (set_in_frequency(client, be32_to_cpup(config_data),n)<0) return; /* 32 bits are sufficient here */
		}
		}
		@@ -981,7 +997,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		freq[1]=be32_to_cpup(&config_data[1]);
		freq[2]=be32_to_cpup(&config_data[2]);
		}
		dev_info(&client->dev,"Found '%s', value = %lld+(%lld/%lld)\n",buf,freq[0],freq[1],freq[2]);
		dev_dbg(&client->dev,"Found '%s', value = %lld+(%lld/%lld)\n",buf,freq[0],freq[1],freq[2]);
		if (n & 2){ /* by output */
		if (set_pll_freq_by_out(client, freq, n & 1)<0) return;
		} else { /* directly set PLL frequency */
		@@ -1005,7 +1021,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		freq[1]=be32_to_cpup(&config_data[1]);
		freq[2]=be32_to_cpup(&config_data[2]);
		}
		dev_info(&client->dev,"Found '%s', value = %lld+(%lld/%lld)\n",buf,freq[0],freq[1],freq[2]);
		dev_dbg(&client->dev,"Found '%s', value = %lld+(%lld/%lld)\n",buf,freq[0],freq[1],freq[2]);
		if (set_out_frequency_and_route(client, freq, n&3, n>>2)<0) return;
		}
		}
		@@ -1017,7 +1033,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		len /= sizeof(*config_data);
		for (i=0;i<len;i++){
		*setup_data_be32=config_data[i];
		dev_info(&client->dev,"Setting '%s', channel %d",buf,setup_data.mask);
		dev_dbg(&client->dev,"Setting '%s', channel %d",buf,setup_data.mask);
		if (configure_output_driver(&client->dev, drv_configs[n].description, setup_data.mask)<0) return;
		}
		}
		@@ -1031,7 +1047,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		len /= sizeof(*config_data);
		for (i=0;i<len;i++){
		*setup_data_be32=config_data[i];
		dev_info(&client->dev,"Setting '%s', channel %d",buf,setup_data.mask);
		dev_dbg(&client->dev,"Setting '%s', channel %d",buf,setup_data.mask);
		if (set_drv_disable(client, n, setup_data.mask)<0) return;
		}
		}
		@@ -1045,7 +1061,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		len /= sizeof(*config_data);
		for (i=0;i<len;i++){
		*setup_data_be32=config_data[i];
		dev_info(&client->dev,"Setting '%s', channel %d",buf,setup_data.mask);
		dev_dbg(&client->dev,"Setting '%s', channel %d",buf,setup_data.mask);
		if (set_drv_powerdown(client, n, setup_data.mask)<0) return;
		}
		}
		@@ -1059,7 +1075,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		len /= sizeof(*config_data);
		for (i=0;i<len;i++){
		*setup_data_be32=config_data[i];
		dev_info(&client->dev,"Setting '%s', channel %d",buf,setup_data.mask);
		dev_dbg(&client->dev,"Setting '%s', channel %d",buf,setup_data.mask);
		if (set_drv_disable(client, n, setup_data.mask)<0) return;
		}
		}
		@@ -1075,7 +1091,7 @@ static void ltc3589_init_of(struct i2c_client *client)
		if (len>1) amp = be32_to_cpup(&config_data[1]);
		if (len>2) rate = be32_to_cpup(&config_data[2]);
		if (store_ss_down_parameters(client, rate, amp, n)==0){
		dev_info(&client->dev,"Set spread spectrum parameters for MS%d, amplitude=%d (*0.01%%), rate=%d Hz, %s\n",
		dev_dbg(&client->dev,"Set spread spectrum parameters for MS%d, amplitude=%d (*0.01%%), rate=%d Hz, %s\n",
		n,amp,rate,config_data[0]?"ON":"OFF");
		} else {
		dev_err(&client->dev,"Failed to set spread spectrum parameters for MS%d, amplitude=%d (*0.01%%), rate=%d Hz, %s\n",
		@@ -1085,9 +1101,9 @@ static void ltc3589_init_of(struct i2c_client *client)
		if (config_data[0]){ /* enable SS */
		if ((set_ss_down(client, n)==0) && /* calculate and set SS registers */
		(set_ss_state(client, 1, n)==0)){ // enable SS. Not using enable_spread_spectrum() as we'll reset MS later anyway
		dev_info(&client->dev,"Spread spectrum enabled for MS%d\n",n);
		dev_dbg(&client->dev,"Spread spectrum enabled for MS%d\n",n);
		} else {
		dev_info(&client->dev,"Fail to enable spread spectrum for MS%d\n",n);
		dev_dbg(&client->dev,"Fail to enable spread spectrum for MS%d\n",n);
		}
		}
		}
		@@ -1131,7 +1147,6 @@ static int ltc3589_i2c_probe(struct i2c_client *client, const struct i2c_device_
		return 0;
		}


		static int ltc3589_i2c_remove(struct i2c_client *client)
		{
		return 0;

include/linux/i2c/ltc3589.h

+5 −2

Original line number	Diff line number	Diff line
		@@ -24,8 +24,11 @@
		#include <linux/types.h>
		#include <linux/device.h>
		#include <linux/i2c.h>
		int read_field_ltc3589 (struct i2c_client *client, u32 awe);
		int write_field_ltc3589 (struct i2c_client *client, u8 data, u32 awe);
		int ltc3589_read_field(struct i2c_client *client, u32 awe);
		int ltc3589_write_field(struct i2c_client *client, u8 data, u32 awe);
		int ltc3589_write_adwe(struct i2c_client *client, u32 adwe);
		void ltc3589_set_simulate(struct i2c_client *client, int simulate);

		#define LTC3589_AWE_SCR1 0x07ff
		#define LTC3589_AWE_SCR1_MODE_SD1 0x0703
		#define LTC3589_AWE_SCR1_MODE_SD2 0x070c

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