Lines Matching refs:mem
104 static int spi_check_buswidth_req(struct spi_mem *mem, u8 buswidth, bool tx) in spi_check_buswidth_req() argument
106 u32 mode = mem->spi->mode; in spi_check_buswidth_req()
142 static bool spi_mem_check_buswidth(struct spi_mem *mem, in spi_mem_check_buswidth() argument
145 if (spi_check_buswidth_req(mem, op->cmd.buswidth, true)) in spi_mem_check_buswidth()
149 spi_check_buswidth_req(mem, op->addr.buswidth, true)) in spi_mem_check_buswidth()
153 spi_check_buswidth_req(mem, op->dummy.buswidth, true)) in spi_mem_check_buswidth()
157 spi_check_buswidth_req(mem, op->data.buswidth, in spi_mem_check_buswidth()
164 bool spi_mem_default_supports_op(struct spi_mem *mem, in spi_mem_default_supports_op() argument
167 struct spi_controller *ctlr = mem->spi->controller; in spi_mem_default_supports_op()
187 return spi_mem_check_buswidth(mem, op); in spi_mem_default_supports_op()
227 static bool spi_mem_internal_supports_op(struct spi_mem *mem, in spi_mem_internal_supports_op() argument
230 struct spi_controller *ctlr = mem->spi->controller; in spi_mem_internal_supports_op()
233 return ctlr->mem_ops->supports_op(mem, op); in spi_mem_internal_supports_op()
235 return spi_mem_default_supports_op(mem, op); in spi_mem_internal_supports_op()
253 bool spi_mem_supports_op(struct spi_mem *mem, const struct spi_mem_op *op) in spi_mem_supports_op() argument
258 return spi_mem_internal_supports_op(mem, op); in spi_mem_supports_op()
262 static int spi_mem_access_start(struct spi_mem *mem) in spi_mem_access_start() argument
264 struct spi_controller *ctlr = mem->spi->controller; in spi_mem_access_start()
289 static void spi_mem_access_end(struct spi_mem *mem) in spi_mem_access_end() argument
291 struct spi_controller *ctlr = mem->spi->controller; in spi_mem_access_end()
355 int spi_mem_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) in spi_mem_exec_op() argument
358 struct spi_controller *ctlr = mem->spi->controller; in spi_mem_exec_op()
368 if (!spi_mem_internal_supports_op(mem, op)) in spi_mem_exec_op()
371 if (ctlr->mem_ops && ctlr->mem_ops->exec_op && !spi_get_csgpiod(mem->spi, 0)) { in spi_mem_exec_op()
372 ret = spi_mem_access_start(mem); in spi_mem_exec_op()
376 ret = ctlr->mem_ops->exec_op(mem, op); in spi_mem_exec_op()
378 spi_mem_access_end(mem); in spi_mem_exec_op()
387 spi_mem_add_op_stats(mem->spi->pcpu_statistics, op, ret); in spi_mem_exec_op()
455 ret = spi_sync(mem->spi, &msg); in spi_mem_exec_op()
481 const char *spi_mem_get_name(struct spi_mem *mem) in spi_mem_get_name() argument
483 return mem->name; in spi_mem_get_name()
502 int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op) in spi_mem_adjust_op_size() argument
504 struct spi_controller *ctlr = mem->spi->controller; in spi_mem_adjust_op_size()
508 return ctlr->mem_ops->adjust_op_size(mem, op); in spi_mem_adjust_op_size()
513 if (len > spi_max_transfer_size(mem->spi)) in spi_mem_adjust_op_size()
517 spi_max_transfer_size(mem->spi), in spi_mem_adjust_op_size()
518 spi_max_message_size(mem->spi) - in spi_mem_adjust_op_size()
537 ret = spi_mem_adjust_op_size(desc->mem, &op); in spi_mem_no_dirmap_read()
541 ret = spi_mem_exec_op(desc->mem, &op); in spi_mem_no_dirmap_read()
557 ret = spi_mem_adjust_op_size(desc->mem, &op); in spi_mem_no_dirmap_write()
561 ret = spi_mem_exec_op(desc->mem, &op); in spi_mem_no_dirmap_write()
582 spi_mem_dirmap_create(struct spi_mem *mem, in spi_mem_dirmap_create() argument
585 struct spi_controller *ctlr = mem->spi->controller; in spi_mem_dirmap_create()
601 desc->mem = mem; in spi_mem_dirmap_create()
608 if (!spi_mem_supports_op(desc->mem, &desc->info.op_tmpl)) in spi_mem_dirmap_create()
632 struct spi_controller *ctlr = desc->mem->spi->controller; in spi_mem_dirmap_destroy()
661 devm_spi_mem_dirmap_create(struct device *dev, struct spi_mem *mem, in devm_spi_mem_dirmap_create() argument
671 desc = spi_mem_dirmap_create(mem, info); in devm_spi_mem_dirmap_create()
729 struct spi_controller *ctlr = desc->mem->spi->controller; in spi_mem_dirmap_read()
741 ret = spi_mem_access_start(desc->mem); in spi_mem_dirmap_read()
747 spi_mem_access_end(desc->mem); in spi_mem_dirmap_read()
775 struct spi_controller *ctlr = desc->mem->spi->controller; in spi_mem_dirmap_write()
787 ret = spi_mem_access_start(desc->mem); in spi_mem_dirmap_write()
793 spi_mem_access_end(desc->mem); in spi_mem_dirmap_write()
807 static int spi_mem_read_status(struct spi_mem *mem, in spi_mem_read_status() argument
814 ret = spi_mem_exec_op(mem, op); in spi_mem_read_status()
842 int spi_mem_poll_status(struct spi_mem *mem, in spi_mem_poll_status() argument
849 struct spi_controller *ctlr = mem->spi->controller; in spi_mem_poll_status()
858 if (ctlr->mem_ops && ctlr->mem_ops->poll_status && !spi_get_csgpiod(mem->spi, 0)) { in spi_mem_poll_status()
859 ret = spi_mem_access_start(mem); in spi_mem_poll_status()
863 ret = ctlr->mem_ops->poll_status(mem, op, mask, match, in spi_mem_poll_status()
867 spi_mem_access_end(mem); in spi_mem_poll_status()
871 if (!spi_mem_supports_op(mem, op)) in spi_mem_poll_status()
882 polling_delay_us, timeout_ms * 1000, false, mem, in spi_mem_poll_status()
896 struct spi_mem *mem; in spi_mem_probe() local
898 mem = devm_kzalloc(&spi->dev, sizeof(*mem), GFP_KERNEL); in spi_mem_probe()
899 if (!mem) in spi_mem_probe()
902 mem->spi = spi; in spi_mem_probe()
905 mem->name = ctlr->mem_ops->get_name(mem); in spi_mem_probe()
907 mem->name = dev_name(&spi->dev); in spi_mem_probe()
909 if (IS_ERR_OR_NULL(mem->name)) in spi_mem_probe()
910 return PTR_ERR_OR_ZERO(mem->name); in spi_mem_probe()
912 spi_set_drvdata(spi, mem); in spi_mem_probe()
914 return memdrv->probe(mem); in spi_mem_probe()
920 struct spi_mem *mem = spi_get_drvdata(spi); in spi_mem_remove() local
923 memdrv->remove(mem); in spi_mem_remove()
929 struct spi_mem *mem = spi_get_drvdata(spi); in spi_mem_shutdown() local
932 memdrv->shutdown(mem); in spi_mem_shutdown()