spi: spi_qsd: Add ipc logging for spi driver
Add ipc logging for spi blsp driver. Change-Id: I9b820308b43f935ddb853e6480a7e7b37febd9b7 Signed-off-by: Prudhvi Yarlagadda <pyarlaga@codeaurora.org>
This commit is contained in:
Prudhvi Yarlagadda
parent
0086d774a8
commit
5c3d91cde8
2 changed files with 91 additions and 20 deletions
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@ -44,10 +44,21 @@
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#include <linux/msm-sps.h>
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#include <linux/msm-bus.h>
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#include <linux/msm-bus-board.h>
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#include <linux/ipc_logging.h>
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#include "spi_qsd.h"
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#define SPI_MAX_BYTES_PER_WORD (4)
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#define spi_ipc(log_ctx, print, dev, x...) do { \
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ipc_log_string(log_ctx, x); \
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if (print) { \
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if (dev) \
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dev_err((dev), x); \
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else \
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pr_err(x); \
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} \
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} while (0)
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static int msm_spi_pm_resume_runtime(struct device *device);
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static int msm_spi_pm_suspend_runtime(struct device *device);
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static inline void msm_spi_dma_unmap_buffers(struct msm_spi *dd);
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@ -955,6 +966,8 @@ static inline irqreturn_t msm_spi_qup_irq(int irq, void *dev_id)
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* processing of interrupt.
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*/
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mb();
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s op_stat = 0x%x\n", __func__,
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op);
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if (op & SPI_OP_INPUT_SERVICE_FLAG)
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ret |= msm_spi_input_irq(irq, dev_id);
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@ -1098,6 +1111,8 @@ static irqreturn_t msm_spi_error_irq(int irq, void *dev_id)
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msm_spi_ack_clk_err(dd);
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/* Ensure clearing of QUP_ERROR_FLAGS was completed */
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mb();
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s spi_err = 0x%x\n",
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__func__, spi_err);
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return IRQ_HANDLED;
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}
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@ -1415,6 +1430,11 @@ static int msm_spi_process_transfer(struct msm_spi *dd)
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return ret;
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}
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}
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spi_ipc(dd->ipc_logs, false, dd->dev,
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"%s(): bpw:%d speed:%d msg_len:%d timeout:%u xfer_mode:%d\n",
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__func__, bpw, max_speed, dd->cur_msg_len, timeout, dd->tx_mode);
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msm_spi_set_qup_io_modes(dd);
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msm_spi_set_spi_config(dd, bpw);
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msm_spi_set_qup_config(dd, bpw);
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@ -1539,6 +1559,7 @@ static inline void msm_spi_set_cs(struct spi_device *spi, bool set_flag)
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pm_runtime_mark_last_busy(dd->dev);
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pm_runtime_put_autosuspend(dd->dev);
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s(): End\n", __func__);
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}
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static void reset_core(struct msm_spi *dd)
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@ -1589,13 +1610,13 @@ static int get_local_resources(struct msm_spi *dd)
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dev_err(dd->dev,
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"%s: error configuring GPIOs\n",
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__func__);
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return ret;
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goto ret_err;
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}
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}
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ret = msm_spi_request_gpios(dd);
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if (ret)
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return ret;
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goto ret_err;
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ret = clk_prepare_enable(dd->clk);
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if (ret)
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@ -1611,6 +1632,8 @@ static int get_local_resources(struct msm_spi *dd)
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clk_disable_unprepare(dd->clk);
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clk0_err:
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msm_spi_free_gpios(dd);
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ret_err:
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s: ret %d\n", __func__, ret);
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return ret;
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}
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@ -1631,6 +1654,8 @@ static int msm_spi_transfer_one(struct spi_master *master,
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dd = spi_master_get_devdata(master);
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s START\n", __func__);
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/* Check message parameters */
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if (xfer->speed_hz > dd->pdata->max_clock_speed ||
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(xfer->bits_per_word &&
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@ -1701,6 +1726,9 @@ static int msm_spi_transfer_one(struct spi_master *master,
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mutex_unlock(&dd->core_lock);
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if (dd->suspended)
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wake_up_interruptible(&dd->continue_suspend);
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s ret = %d END\n",
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__func__, status_error);
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return status_error;
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}
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@ -1780,10 +1808,13 @@ static int msm_spi_prepare_transfer_hardware(struct spi_master *master)
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}
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}
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s() End\n", __func__);
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return 0;
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spi_finalize:
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spi_finalize_current_message(master);
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s(): resume_state = %d\n",
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__func__, resume_state);
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return resume_state;
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}
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@ -1885,6 +1916,8 @@ static int msm_spi_setup(struct spi_device *spi)
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pm_runtime_put_autosuspend(dd->dev);
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err_setup_exit:
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s: ret %d End\n",
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__func__, rc);
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return rc;
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}
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@ -2639,6 +2672,12 @@ static int msm_spi_probe(struct platform_device *pdev)
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goto err_attrs;
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}
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spi_debugfs_init(dd);
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dd->ipc_logs = ipc_log_context_create(4, dev_name(dd->dev), 0);
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if (!dd->ipc_logs)
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dev_info(&pdev->dev, "%s: failed to create ipc log cntxt\n",
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__func__);
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s: success\n", __func__);
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return 0;
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@ -2665,10 +2704,10 @@ static int msm_spi_pm_suspend_runtime(struct device *device)
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goto suspend_exit;
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dd = spi_master_get_devdata(master);
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if (!dd)
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goto suspend_exit;
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return 0;
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if (dd->suspended)
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return 0;
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goto suspend_exit;
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/*
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* Make sure nothing is added to the queue while we're
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@ -2695,6 +2734,7 @@ static int msm_spi_pm_suspend_runtime(struct device *device)
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mutex_unlock(&dd->core_lock);
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suspend_exit:
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s(): End\n", __func__);
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return 0;
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}
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@ -2710,14 +2750,18 @@ static int msm_spi_pm_resume_runtime(struct device *device)
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goto resume_exit;
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dd = spi_master_get_devdata(master);
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if (!dd)
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goto resume_exit;
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return 0;
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if (!dd->suspended)
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return 0;
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goto resume_exit;
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if (!dd->is_init_complete) {
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ret = init_resources(pdev);
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if (ret != 0)
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if (ret != 0) {
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spi_ipc(dd->ipc_logs, false, dd->dev,
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"%s: resume err with init_res %d\n", __func__, ret);
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return ret;
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}
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dd->is_init_complete = true;
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}
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@ -2726,8 +2770,11 @@ static int msm_spi_pm_resume_runtime(struct device *device)
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if (!dd->pdata->is_shared) {
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ret = get_local_resources(dd);
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if (ret)
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if (ret) {
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spi_ipc(dd->ipc_logs, false, dd->dev,
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"%s: resume err with local_res %d\n", __func__, ret);
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return ret;
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}
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}
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if (!dd->pdata->is_shared && dd->use_dma) {
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msm_spi_bam_pipe_connect(dd, &dd->bam.prod,
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@ -2738,23 +2785,26 @@ static int msm_spi_pm_resume_runtime(struct device *device)
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dd->suspended = false;
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resume_exit:
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s(): End\n", __func__);
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return 0;
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}
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#ifdef CONFIG_PM_SLEEP
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static int msm_spi_suspend(struct device *device)
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{
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if (!pm_runtime_enabled(device) || !pm_runtime_suspended(device)) {
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struct platform_device *pdev = to_platform_device(device);
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struct spi_master *master = platform_get_drvdata(pdev);
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struct msm_spi *dd;
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struct platform_device *pdev = to_platform_device(device);
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struct spi_master *master = platform_get_drvdata(pdev);
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struct msm_spi *dd;
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dev_dbg(device, "system suspend\n");
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if (!master)
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goto suspend_exit;
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dd = spi_master_get_devdata(master);
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if (!dd)
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goto suspend_exit;
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if (!pm_runtime_enabled(device) || !pm_runtime_suspended(device)) {
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dev_dbg(device, "system suspend\n");
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if (!master)
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goto suspend_exit;
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dd = spi_master_get_devdata(master);
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if (!dd)
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goto suspend_exit;
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msm_spi_pm_suspend_runtime(device);
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/*
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@ -2764,18 +2814,35 @@ static int msm_spi_suspend(struct device *device)
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pm_runtime_set_suspended(device);
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pm_runtime_enable(device);
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}
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s(): End\n", __func__);
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suspend_exit:
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return 0;
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}
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static int msm_spi_resume(struct device *device)
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{
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struct platform_device *pdev = to_platform_device(device);
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struct spi_master *master = platform_get_drvdata(pdev);
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struct msm_spi *dd;
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dev_dbg(device, "system resume\n");
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if (!master)
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goto resume_exit;
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dd = spi_master_get_devdata(master);
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if (!dd)
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goto resume_exit;
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/*
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* Rely on runtime-PM to call resume in case it is enabled
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* Even if it's not enabled, rely on 1st client transaction to do
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* clock ON and gpio configuration
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*/
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dev_dbg(device, "system resume\n");
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spi_ipc(dd->ipc_logs, false, dd->dev, "%s(): End\n", __func__);
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resume_exit:
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return 0;
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}
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#else
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@ -2788,6 +2855,7 @@ static int msm_spi_remove(struct platform_device *pdev)
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{
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struct spi_master *master = platform_get_drvdata(pdev);
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struct msm_spi *dd = spi_master_get_devdata(master);
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int ret = 0;
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spi_debugfs_exit(dd);
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sysfs_remove_group(&pdev->dev.kobj, &dev_attr_grp);
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@ -2796,6 +2864,8 @@ static int msm_spi_remove(struct platform_device *pdev)
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dd->dma_teardown(dd);
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pm_runtime_disable(&pdev->dev);
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pm_runtime_set_suspended(&pdev->dev);
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if (dd->ipc_logs)
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ret = ipc_log_context_destroy(dd->ipc_logs);
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clk_put(dd->clk);
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clk_put(dd->pclk);
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msm_spi_clk_path_teardown(dd);
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@ -2803,7 +2873,7 @@ static int msm_spi_remove(struct platform_device *pdev)
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spi_unregister_master(master);
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spi_master_put(master);
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return 0;
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return ret;
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}
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static const struct of_device_id msm_spi_dt_match[] = {
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@ -305,6 +305,7 @@ struct msm_spi {
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struct msm_bus_client_handle *bus_cl_hdl;
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unsigned long mem_phys_addr;
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size_t mem_size;
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void *ipc_logs; /* ipc logs handler */
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int input_fifo_size;
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int output_fifo_size;
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u32 rx_bytes_remaining;
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