ts_nbus 45 drivers/bus/ts-nbus.c static int ts_nbus_init_pdata(struct platform_device *pdev, struct ts_nbus ts_nbus 46 drivers/bus/ts-nbus.c *ts_nbus) ts_nbus 48 drivers/bus/ts-nbus.c ts_nbus->data = devm_gpiod_get_array(&pdev->dev, "ts,data", ts_nbus 50 drivers/bus/ts-nbus.c if (IS_ERR(ts_nbus->data)) { ts_nbus 52 drivers/bus/ts-nbus.c return PTR_ERR(ts_nbus->data); ts_nbus 55 drivers/bus/ts-nbus.c ts_nbus->csn = devm_gpiod_get(&pdev->dev, "ts,csn", GPIOD_OUT_HIGH); ts_nbus 56 drivers/bus/ts-nbus.c if (IS_ERR(ts_nbus->csn)) { ts_nbus 58 drivers/bus/ts-nbus.c return PTR_ERR(ts_nbus->csn); ts_nbus 61 drivers/bus/ts-nbus.c ts_nbus->txrx = devm_gpiod_get(&pdev->dev, "ts,txrx", GPIOD_OUT_HIGH); ts_nbus 62 drivers/bus/ts-nbus.c if (IS_ERR(ts_nbus->txrx)) { ts_nbus 64 drivers/bus/ts-nbus.c return PTR_ERR(ts_nbus->txrx); ts_nbus 67 drivers/bus/ts-nbus.c ts_nbus->strobe = devm_gpiod_get(&pdev->dev, "ts,strobe", GPIOD_OUT_HIGH); ts_nbus 68 drivers/bus/ts-nbus.c if (IS_ERR(ts_nbus->strobe)) { ts_nbus 70 drivers/bus/ts-nbus.c return PTR_ERR(ts_nbus->strobe); ts_nbus 73 drivers/bus/ts-nbus.c ts_nbus->ale = devm_gpiod_get(&pdev->dev, "ts,ale", GPIOD_OUT_HIGH); ts_nbus 74 drivers/bus/ts-nbus.c if (IS_ERR(ts_nbus->ale)) { ts_nbus 76 drivers/bus/ts-nbus.c return PTR_ERR(ts_nbus->ale); ts_nbus 79 drivers/bus/ts-nbus.c ts_nbus->rdy = devm_gpiod_get(&pdev->dev, "ts,rdy", GPIOD_IN); ts_nbus 80 drivers/bus/ts-nbus.c if (IS_ERR(ts_nbus->rdy)) { ts_nbus 82 drivers/bus/ts-nbus.c return PTR_ERR(ts_nbus->rdy); ts_nbus 92 drivers/bus/ts-nbus.c static void ts_nbus_set_direction(struct ts_nbus *ts_nbus, int direction) ts_nbus 98 drivers/bus/ts-nbus.c gpiod_direction_input(ts_nbus->data->desc[i]); ts_nbus 102 drivers/bus/ts-nbus.c gpiod_direction_output(ts_nbus->data->desc[i], 1); ts_nbus 111 drivers/bus/ts-nbus.c static void ts_nbus_reset_bus(struct ts_nbus *ts_nbus) ts_nbus 117 drivers/bus/ts-nbus.c gpiod_set_array_value_cansleep(8, ts_nbus->data->desc, ts_nbus 118 drivers/bus/ts-nbus.c ts_nbus->data->info, values); ts_nbus 119 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->csn, 0); ts_nbus 120 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->strobe, 0); ts_nbus 121 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->ale, 0); ts_nbus 127 drivers/bus/ts-nbus.c static void ts_nbus_start_transaction(struct ts_nbus *ts_nbus) ts_nbus 129 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->strobe, 1); ts_nbus 136 drivers/bus/ts-nbus.c static int ts_nbus_read_byte(struct ts_nbus *ts_nbus, u8 *val) ts_nbus 138 drivers/bus/ts-nbus.c struct gpio_descs *gpios = ts_nbus->data; ts_nbus 156 drivers/bus/ts-nbus.c static void ts_nbus_write_byte(struct ts_nbus *ts_nbus, u8 byte) ts_nbus 158 drivers/bus/ts-nbus.c struct gpio_descs *gpios = ts_nbus->data; ts_nbus 171 drivers/bus/ts-nbus.c static int ts_nbus_read_bus(struct ts_nbus *ts_nbus, u8 *val) ts_nbus 173 drivers/bus/ts-nbus.c ts_nbus_reset_bus(ts_nbus); ts_nbus 174 drivers/bus/ts-nbus.c ts_nbus_start_transaction(ts_nbus); ts_nbus 176 drivers/bus/ts-nbus.c return ts_nbus_read_byte(ts_nbus, val); ts_nbus 184 drivers/bus/ts-nbus.c static void ts_nbus_write_bus(struct ts_nbus *ts_nbus, int cmd, u8 val) ts_nbus 186 drivers/bus/ts-nbus.c ts_nbus_reset_bus(ts_nbus); ts_nbus 189 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->ale, 1); ts_nbus 191 drivers/bus/ts-nbus.c ts_nbus_write_byte(ts_nbus, val); ts_nbus 192 drivers/bus/ts-nbus.c ts_nbus_start_transaction(ts_nbus); ts_nbus 199 drivers/bus/ts-nbus.c int ts_nbus_read(struct ts_nbus *ts_nbus, u8 adr, u16 *val) ts_nbus 205 drivers/bus/ts-nbus.c mutex_lock(&ts_nbus->lock); ts_nbus 208 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->txrx, 0); ts_nbus 211 drivers/bus/ts-nbus.c ts_nbus_write_bus(ts_nbus, TS_NBUS_WRITE_ADR, adr); ts_nbus 214 drivers/bus/ts-nbus.c ts_nbus_set_direction(ts_nbus, TS_NBUS_DIRECTION_IN); ts_nbus 222 drivers/bus/ts-nbus.c ret = ts_nbus_read_bus(ts_nbus, &byte); ts_nbus 229 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->csn, 1); ts_nbus 230 drivers/bus/ts-nbus.c ret = gpiod_get_value_cansleep(ts_nbus->rdy); ts_nbus 235 drivers/bus/ts-nbus.c ts_nbus_set_direction(ts_nbus, TS_NBUS_DIRECTION_OUT); ts_nbus 237 drivers/bus/ts-nbus.c mutex_unlock(&ts_nbus->lock); ts_nbus 246 drivers/bus/ts-nbus.c int ts_nbus_write(struct ts_nbus *ts_nbus, u8 adr, u16 val) ts_nbus 251 drivers/bus/ts-nbus.c mutex_lock(&ts_nbus->lock); ts_nbus 254 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->txrx, 1); ts_nbus 257 drivers/bus/ts-nbus.c ts_nbus_write_bus(ts_nbus, TS_NBUS_WRITE_ADR, adr); ts_nbus 261 drivers/bus/ts-nbus.c ts_nbus_write_bus(ts_nbus, TS_NBUS_WRITE_VAL, (u8)(val >> (i * 8))); ts_nbus 264 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->csn, 1); ts_nbus 265 drivers/bus/ts-nbus.c while (gpiod_get_value_cansleep(ts_nbus->rdy) != 0) { ts_nbus 266 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->csn, 0); ts_nbus 267 drivers/bus/ts-nbus.c gpiod_set_value_cansleep(ts_nbus->csn, 1); ts_nbus 270 drivers/bus/ts-nbus.c mutex_unlock(&ts_nbus->lock); ts_nbus 281 drivers/bus/ts-nbus.c struct ts_nbus *ts_nbus; ts_nbus 284 drivers/bus/ts-nbus.c ts_nbus = devm_kzalloc(dev, sizeof(*ts_nbus), GFP_KERNEL); ts_nbus 285 drivers/bus/ts-nbus.c if (!ts_nbus) ts_nbus 288 drivers/bus/ts-nbus.c mutex_init(&ts_nbus->lock); ts_nbus 290 drivers/bus/ts-nbus.c ret = ts_nbus_init_pdata(pdev, ts_nbus); ts_nbus 321 drivers/bus/ts-nbus.c ts_nbus->pwm = pwm; ts_nbus 326 drivers/bus/ts-nbus.c dev_set_drvdata(dev, ts_nbus); ts_nbus 339 drivers/bus/ts-nbus.c struct ts_nbus *ts_nbus = dev_get_drvdata(&pdev->dev); ts_nbus 342 drivers/bus/ts-nbus.c mutex_lock(&ts_nbus->lock); ts_nbus 343 drivers/bus/ts-nbus.c pwm_disable(ts_nbus->pwm); ts_nbus 344 drivers/bus/ts-nbus.c mutex_unlock(&ts_nbus->lock); ts_nbus 13 include/linux/ts-nbus.h struct ts_nbus; ts_nbus 15 include/linux/ts-nbus.h extern int ts_nbus_read(struct ts_nbus *ts_nbus, u8 adr, u16 *val); ts_nbus 16 include/linux/ts-nbus.h extern int ts_nbus_write(struct ts_nbus *ts_nbus, u8 adr, u16 val);