gi2c 136 drivers/i2c/busses/i2c-qcom-geni.c static int geni_i2c_clk_map_idx(struct geni_i2c_dev *gi2c) gi2c 142 drivers/i2c/busses/i2c-qcom-geni.c if (itr->clk_freq_out == gi2c->clk_freq_out) { gi2c 143 drivers/i2c/busses/i2c-qcom-geni.c gi2c->clk_fld = itr; gi2c 150 drivers/i2c/busses/i2c-qcom-geni.c static void qcom_geni_i2c_conf(struct geni_i2c_dev *gi2c) gi2c 152 drivers/i2c/busses/i2c-qcom-geni.c const struct geni_i2c_clk_fld *itr = gi2c->clk_fld; gi2c 155 drivers/i2c/busses/i2c-qcom-geni.c writel_relaxed(0, gi2c->se.base + SE_GENI_CLK_SEL); gi2c 158 drivers/i2c/busses/i2c-qcom-geni.c writel_relaxed(val, gi2c->se.base + GENI_SER_M_CLK_CFG); gi2c 163 drivers/i2c/busses/i2c-qcom-geni.c writel_relaxed(val, gi2c->se.base + SE_I2C_SCL_COUNTERS); gi2c 166 drivers/i2c/busses/i2c-qcom-geni.c static void geni_i2c_err_misc(struct geni_i2c_dev *gi2c) gi2c 168 drivers/i2c/busses/i2c-qcom-geni.c u32 m_cmd = readl_relaxed(gi2c->se.base + SE_GENI_M_CMD0); gi2c 169 drivers/i2c/busses/i2c-qcom-geni.c u32 m_stat = readl_relaxed(gi2c->se.base + SE_GENI_M_IRQ_STATUS); gi2c 170 drivers/i2c/busses/i2c-qcom-geni.c u32 geni_s = readl_relaxed(gi2c->se.base + SE_GENI_STATUS); gi2c 171 drivers/i2c/busses/i2c-qcom-geni.c u32 geni_ios = readl_relaxed(gi2c->se.base + SE_GENI_IOS); gi2c 172 drivers/i2c/busses/i2c-qcom-geni.c u32 dma = readl_relaxed(gi2c->se.base + SE_GENI_DMA_MODE_EN); gi2c 176 drivers/i2c/busses/i2c-qcom-geni.c rx_st = readl_relaxed(gi2c->se.base + SE_DMA_RX_IRQ_STAT); gi2c 177 drivers/i2c/busses/i2c-qcom-geni.c tx_st = readl_relaxed(gi2c->se.base + SE_DMA_TX_IRQ_STAT); gi2c 179 drivers/i2c/busses/i2c-qcom-geni.c rx_st = readl_relaxed(gi2c->se.base + SE_GENI_RX_FIFO_STATUS); gi2c 180 drivers/i2c/busses/i2c-qcom-geni.c tx_st = readl_relaxed(gi2c->se.base + SE_GENI_TX_FIFO_STATUS); gi2c 182 drivers/i2c/busses/i2c-qcom-geni.c dev_dbg(gi2c->se.dev, "DMA:%d tx_stat:0x%x, rx_stat:0x%x, irq-stat:0x%x\n", gi2c 184 drivers/i2c/busses/i2c-qcom-geni.c dev_dbg(gi2c->se.dev, "m_cmd:0x%x, geni_status:0x%x, geni_ios:0x%x\n", gi2c 188 drivers/i2c/busses/i2c-qcom-geni.c static void geni_i2c_err(struct geni_i2c_dev *gi2c, int err) gi2c 190 drivers/i2c/busses/i2c-qcom-geni.c if (!gi2c->err) gi2c 191 drivers/i2c/busses/i2c-qcom-geni.c gi2c->err = gi2c_log[err].err; gi2c 192 drivers/i2c/busses/i2c-qcom-geni.c if (gi2c->cur) gi2c 193 drivers/i2c/busses/i2c-qcom-geni.c dev_dbg(gi2c->se.dev, "len:%d, slv-addr:0x%x, RD/WR:%d\n", gi2c 194 drivers/i2c/busses/i2c-qcom-geni.c gi2c->cur->len, gi2c->cur->addr, gi2c->cur->flags); gi2c 197 drivers/i2c/busses/i2c-qcom-geni.c dev_err(gi2c->se.dev, "%s\n", gi2c_log[err].msg); gi2c 198 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err_misc(gi2c); gi2c 204 drivers/i2c/busses/i2c-qcom-geni.c struct geni_i2c_dev *gi2c = dev; gi2c 205 drivers/i2c/busses/i2c-qcom-geni.c void __iomem *base = gi2c->se.base; gi2c 216 drivers/i2c/busses/i2c-qcom-geni.c spin_lock_irqsave(&gi2c->lock, flags); gi2c 222 drivers/i2c/busses/i2c-qcom-geni.c cur = gi2c->cur; gi2c 228 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err(gi2c, NACK); gi2c 230 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err(gi2c, BUS_PROTO); gi2c 232 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err(gi2c, ARB_LOST); gi2c 234 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err(gi2c, GENI_OVERRUN); gi2c 236 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err(gi2c, GENI_ILLEGAL_CMD); gi2c 238 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err(gi2c, GENI_ABORT_DONE); gi2c 240 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err(gi2c, GP_IRQ0); gi2c 246 drivers/i2c/busses/i2c-qcom-geni.c dev_dbg(gi2c->se.dev, "i2c dma tx:0x%x, dma rx:0x%x\n", gi2c 255 drivers/i2c/busses/i2c-qcom-geni.c while (gi2c->cur_rd < cur->len && p < sizeof(val)) { gi2c 256 drivers/i2c/busses/i2c-qcom-geni.c cur->buf[gi2c->cur_rd++] = val & 0xff; gi2c 260 drivers/i2c/busses/i2c-qcom-geni.c if (gi2c->cur_rd == cur->len) gi2c 265 drivers/i2c/busses/i2c-qcom-geni.c for (j = 0; j < gi2c->tx_wm; j++) { gi2c 270 drivers/i2c/busses/i2c-qcom-geni.c while (gi2c->cur_wr < cur->len && p < sizeof(val)) { gi2c 271 drivers/i2c/busses/i2c-qcom-geni.c temp = cur->buf[gi2c->cur_wr++]; gi2c 277 drivers/i2c/busses/i2c-qcom-geni.c if (gi2c->cur_wr == cur->len) { gi2c 296 drivers/i2c/busses/i2c-qcom-geni.c complete(&gi2c->done); gi2c 298 drivers/i2c/busses/i2c-qcom-geni.c spin_unlock_irqrestore(&gi2c->lock, flags); gi2c 303 drivers/i2c/busses/i2c-qcom-geni.c static void geni_i2c_abort_xfer(struct geni_i2c_dev *gi2c) gi2c 309 drivers/i2c/busses/i2c-qcom-geni.c spin_lock_irqsave(&gi2c->lock, flags); gi2c 310 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_err(gi2c, GENI_TIMEOUT); gi2c 311 drivers/i2c/busses/i2c-qcom-geni.c gi2c->cur = NULL; gi2c 312 drivers/i2c/busses/i2c-qcom-geni.c geni_se_abort_m_cmd(&gi2c->se); gi2c 313 drivers/i2c/busses/i2c-qcom-geni.c spin_unlock_irqrestore(&gi2c->lock, flags); gi2c 315 drivers/i2c/busses/i2c-qcom-geni.c time_left = wait_for_completion_timeout(&gi2c->done, time_left); gi2c 316 drivers/i2c/busses/i2c-qcom-geni.c val = readl_relaxed(gi2c->se.base + SE_GENI_M_IRQ_STATUS); gi2c 320 drivers/i2c/busses/i2c-qcom-geni.c dev_err(gi2c->se.dev, "Timeout abort_m_cmd\n"); gi2c 323 drivers/i2c/busses/i2c-qcom-geni.c static void geni_i2c_rx_fsm_rst(struct geni_i2c_dev *gi2c) gi2c 328 drivers/i2c/busses/i2c-qcom-geni.c writel_relaxed(1, gi2c->se.base + SE_DMA_RX_FSM_RST); gi2c 330 drivers/i2c/busses/i2c-qcom-geni.c time_left = wait_for_completion_timeout(&gi2c->done, time_left); gi2c 331 drivers/i2c/busses/i2c-qcom-geni.c val = readl_relaxed(gi2c->se.base + SE_DMA_RX_IRQ_STAT); gi2c 335 drivers/i2c/busses/i2c-qcom-geni.c dev_err(gi2c->se.dev, "Timeout resetting RX_FSM\n"); gi2c 338 drivers/i2c/busses/i2c-qcom-geni.c static void geni_i2c_tx_fsm_rst(struct geni_i2c_dev *gi2c) gi2c 343 drivers/i2c/busses/i2c-qcom-geni.c writel_relaxed(1, gi2c->se.base + SE_DMA_TX_FSM_RST); gi2c 345 drivers/i2c/busses/i2c-qcom-geni.c time_left = wait_for_completion_timeout(&gi2c->done, time_left); gi2c 346 drivers/i2c/busses/i2c-qcom-geni.c val = readl_relaxed(gi2c->se.base + SE_DMA_TX_IRQ_STAT); gi2c 350 drivers/i2c/busses/i2c-qcom-geni.c dev_err(gi2c->se.dev, "Timeout resetting TX_FSM\n"); gi2c 353 drivers/i2c/busses/i2c-qcom-geni.c static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, gi2c 359 drivers/i2c/busses/i2c-qcom-geni.c struct geni_se *se = &gi2c->se; gi2c 379 drivers/i2c/busses/i2c-qcom-geni.c time_left = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT); gi2c 381 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_abort_xfer(gi2c); gi2c 383 drivers/i2c/busses/i2c-qcom-geni.c gi2c->cur_rd = 0; gi2c 385 drivers/i2c/busses/i2c-qcom-geni.c if (gi2c->err) gi2c 386 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_rx_fsm_rst(gi2c); gi2c 388 drivers/i2c/busses/i2c-qcom-geni.c i2c_put_dma_safe_msg_buf(dma_buf, msg, !gi2c->err); gi2c 391 drivers/i2c/busses/i2c-qcom-geni.c return gi2c->err; gi2c 394 drivers/i2c/busses/i2c-qcom-geni.c static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg, gi2c 400 drivers/i2c/busses/i2c-qcom-geni.c struct geni_se *se = &gi2c->se; gi2c 423 drivers/i2c/busses/i2c-qcom-geni.c time_left = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT); gi2c 425 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_abort_xfer(gi2c); gi2c 427 drivers/i2c/busses/i2c-qcom-geni.c gi2c->cur_wr = 0; gi2c 429 drivers/i2c/busses/i2c-qcom-geni.c if (gi2c->err) gi2c 430 drivers/i2c/busses/i2c-qcom-geni.c geni_i2c_tx_fsm_rst(gi2c); gi2c 432 drivers/i2c/busses/i2c-qcom-geni.c i2c_put_dma_safe_msg_buf(dma_buf, msg, !gi2c->err); gi2c 435 drivers/i2c/busses/i2c-qcom-geni.c return gi2c->err; gi2c 442 drivers/i2c/busses/i2c-qcom-geni.c struct geni_i2c_dev *gi2c = i2c_get_adapdata(adap); gi2c 445 drivers/i2c/busses/i2c-qcom-geni.c gi2c->err = 0; gi2c 446 drivers/i2c/busses/i2c-qcom-geni.c reinit_completion(&gi2c->done); gi2c 447 drivers/i2c/busses/i2c-qcom-geni.c ret = pm_runtime_get_sync(gi2c->se.dev); gi2c 449 drivers/i2c/busses/i2c-qcom-geni.c dev_err(gi2c->se.dev, "error turning SE resources:%d\n", ret); gi2c 450 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_put_noidle(gi2c->se.dev); gi2c 452 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_set_suspended(gi2c->se.dev); gi2c 456 drivers/i2c/busses/i2c-qcom-geni.c qcom_geni_i2c_conf(gi2c); gi2c 462 drivers/i2c/busses/i2c-qcom-geni.c gi2c->cur = &msgs[i]; gi2c 464 drivers/i2c/busses/i2c-qcom-geni.c ret = geni_i2c_rx_one_msg(gi2c, &msgs[i], m_param); gi2c 466 drivers/i2c/busses/i2c-qcom-geni.c ret = geni_i2c_tx_one_msg(gi2c, &msgs[i], m_param); gi2c 474 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_mark_last_busy(gi2c->se.dev); gi2c 475 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_put_autosuspend(gi2c->se.dev); gi2c 476 drivers/i2c/busses/i2c-qcom-geni.c gi2c->cur = NULL; gi2c 477 drivers/i2c/busses/i2c-qcom-geni.c gi2c->err = 0; gi2c 501 drivers/i2c/busses/i2c-qcom-geni.c struct geni_i2c_dev *gi2c; gi2c 506 drivers/i2c/busses/i2c-qcom-geni.c gi2c = devm_kzalloc(&pdev->dev, sizeof(*gi2c), GFP_KERNEL); gi2c 507 drivers/i2c/busses/i2c-qcom-geni.c if (!gi2c) gi2c 510 drivers/i2c/busses/i2c-qcom-geni.c gi2c->se.dev = &pdev->dev; gi2c 511 drivers/i2c/busses/i2c-qcom-geni.c gi2c->se.wrapper = dev_get_drvdata(pdev->dev.parent); gi2c 513 drivers/i2c/busses/i2c-qcom-geni.c gi2c->se.base = devm_ioremap_resource(&pdev->dev, res); gi2c 514 drivers/i2c/busses/i2c-qcom-geni.c if (IS_ERR(gi2c->se.base)) gi2c 515 drivers/i2c/busses/i2c-qcom-geni.c return PTR_ERR(gi2c->se.base); gi2c 517 drivers/i2c/busses/i2c-qcom-geni.c gi2c->se.clk = devm_clk_get(&pdev->dev, "se"); gi2c 518 drivers/i2c/busses/i2c-qcom-geni.c if (IS_ERR(gi2c->se.clk) && !has_acpi_companion(&pdev->dev)) { gi2c 519 drivers/i2c/busses/i2c-qcom-geni.c ret = PTR_ERR(gi2c->se.clk); gi2c 525 drivers/i2c/busses/i2c-qcom-geni.c &gi2c->clk_freq_out); gi2c 529 drivers/i2c/busses/i2c-qcom-geni.c gi2c->clk_freq_out = KHZ(100); gi2c 533 drivers/i2c/busses/i2c-qcom-geni.c ACPI_COMPANION_SET(&gi2c->adap.dev, ACPI_COMPANION(&pdev->dev)); gi2c 535 drivers/i2c/busses/i2c-qcom-geni.c gi2c->irq = platform_get_irq(pdev, 0); gi2c 536 drivers/i2c/busses/i2c-qcom-geni.c if (gi2c->irq < 0) { gi2c 538 drivers/i2c/busses/i2c-qcom-geni.c return gi2c->irq; gi2c 541 drivers/i2c/busses/i2c-qcom-geni.c ret = geni_i2c_clk_map_idx(gi2c); gi2c 544 drivers/i2c/busses/i2c-qcom-geni.c gi2c->clk_freq_out, ret); gi2c 548 drivers/i2c/busses/i2c-qcom-geni.c gi2c->adap.algo = &geni_i2c_algo; gi2c 549 drivers/i2c/busses/i2c-qcom-geni.c init_completion(&gi2c->done); gi2c 550 drivers/i2c/busses/i2c-qcom-geni.c spin_lock_init(&gi2c->lock); gi2c 551 drivers/i2c/busses/i2c-qcom-geni.c platform_set_drvdata(pdev, gi2c); gi2c 552 drivers/i2c/busses/i2c-qcom-geni.c ret = devm_request_irq(&pdev->dev, gi2c->irq, geni_i2c_irq, gi2c 553 drivers/i2c/busses/i2c-qcom-geni.c IRQF_TRIGGER_HIGH, "i2c_geni", gi2c); gi2c 556 drivers/i2c/busses/i2c-qcom-geni.c gi2c->irq, ret); gi2c 560 drivers/i2c/busses/i2c-qcom-geni.c disable_irq(gi2c->irq); gi2c 561 drivers/i2c/busses/i2c-qcom-geni.c i2c_set_adapdata(&gi2c->adap, gi2c); gi2c 562 drivers/i2c/busses/i2c-qcom-geni.c gi2c->adap.dev.parent = &pdev->dev; gi2c 563 drivers/i2c/busses/i2c-qcom-geni.c gi2c->adap.dev.of_node = pdev->dev.of_node; gi2c 564 drivers/i2c/busses/i2c-qcom-geni.c strlcpy(gi2c->adap.name, "Geni-I2C", sizeof(gi2c->adap.name)); gi2c 566 drivers/i2c/busses/i2c-qcom-geni.c ret = geni_se_resources_on(&gi2c->se); gi2c 571 drivers/i2c/busses/i2c-qcom-geni.c proto = geni_se_read_proto(&gi2c->se); gi2c 572 drivers/i2c/busses/i2c-qcom-geni.c tx_depth = geni_se_get_tx_fifo_depth(&gi2c->se); gi2c 575 drivers/i2c/busses/i2c-qcom-geni.c geni_se_resources_off(&gi2c->se); gi2c 578 drivers/i2c/busses/i2c-qcom-geni.c gi2c->tx_wm = tx_depth - 1; gi2c 579 drivers/i2c/busses/i2c-qcom-geni.c geni_se_init(&gi2c->se, gi2c->tx_wm, tx_depth); gi2c 580 drivers/i2c/busses/i2c-qcom-geni.c geni_se_config_packing(&gi2c->se, BITS_PER_BYTE, PACKING_BYTES_PW, gi2c 582 drivers/i2c/busses/i2c-qcom-geni.c ret = geni_se_resources_off(&gi2c->se); gi2c 590 drivers/i2c/busses/i2c-qcom-geni.c gi2c->suspended = 1; gi2c 591 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_set_suspended(gi2c->se.dev); gi2c 592 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_set_autosuspend_delay(gi2c->se.dev, I2C_AUTO_SUSPEND_DELAY); gi2c 593 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_use_autosuspend(gi2c->se.dev); gi2c 594 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_enable(gi2c->se.dev); gi2c 596 drivers/i2c/busses/i2c-qcom-geni.c ret = i2c_add_adapter(&gi2c->adap); gi2c 599 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_disable(gi2c->se.dev); gi2c 610 drivers/i2c/busses/i2c-qcom-geni.c struct geni_i2c_dev *gi2c = platform_get_drvdata(pdev); gi2c 612 drivers/i2c/busses/i2c-qcom-geni.c i2c_del_adapter(&gi2c->adap); gi2c 613 drivers/i2c/busses/i2c-qcom-geni.c pm_runtime_disable(gi2c->se.dev); gi2c 620 drivers/i2c/busses/i2c-qcom-geni.c struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); gi2c 622 drivers/i2c/busses/i2c-qcom-geni.c disable_irq(gi2c->irq); gi2c 623 drivers/i2c/busses/i2c-qcom-geni.c ret = geni_se_resources_off(&gi2c->se); gi2c 625 drivers/i2c/busses/i2c-qcom-geni.c enable_irq(gi2c->irq); gi2c 629 drivers/i2c/busses/i2c-qcom-geni.c gi2c->suspended = 1; gi2c 638 drivers/i2c/busses/i2c-qcom-geni.c struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); gi2c 640 drivers/i2c/busses/i2c-qcom-geni.c ret = geni_se_resources_on(&gi2c->se); gi2c 644 drivers/i2c/busses/i2c-qcom-geni.c enable_irq(gi2c->irq); gi2c 645 drivers/i2c/busses/i2c-qcom-geni.c gi2c->suspended = 0; gi2c 651 drivers/i2c/busses/i2c-qcom-geni.c struct geni_i2c_dev *gi2c = dev_get_drvdata(dev); gi2c 653 drivers/i2c/busses/i2c-qcom-geni.c if (!gi2c->suspended) {