Merge "dmaengine: gpi: Add support to make GPI driver GKI compliant" (eda093d5) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/dma/qcom/gpi.c

+43 −3

Original line number	Diff line number	Diff line
		@@ -92,7 +92,7 @@ enum EV_PRIORITY {

		#define GPI_DMA_DRV_NAME "gpi_dma"
		#define DEFAULT_KLOG_LVL (LOG_LVL_CRITICAL)
		#ifdef CONFIG_MSM_GPI_DMA_DEBUG
		#if IS_ENABLED(CONFIG_MSM_GPI_DMA_DEBUG)
		#define DEFAULT_IPC_LOG_LVL (LOG_LVL_VERBOSE)
		#define IPC_LOG_PAGES (40)
		#define GPI_DBG_LOG_SIZE (SZ_1K) /* size must be power of 2 */
		@@ -627,7 +627,7 @@ static inline void to_virtual(const struct gpi_ring const ring,
		return ring->base + (addr - ring->phys_addr);
		}

		#ifdef CONFIG_MSM_GPI_DMA_DEBUG
		#if IS_ENABLED(CONFIG_MSM_GPI_DMA_DEBUG)
		static inline u32 gpi_read_reg(struct gpii gpii, void __iomem addr)
		{
		u64 time = sched_clock();
		@@ -2993,6 +2993,38 @@ static int gpi_probe(struct platform_device *pdev)
		return ret;
		}

		static int gpi_remove(struct platform_device *pdev)
		{
		struct gpi_dev *gpi_dev = platform_get_drvdata(pdev);
		int i;

		of_dma_controller_free(gpi_dev->dev->of_node);
		dma_async_device_unregister(&gpi_dev->dma_device);

		for (i = 0; i < gpi_dev->max_gpii; i++) {
		struct gpii *gpii = &gpi_dev->gpiis[i];
		int chan;

		if (!((1 << i) & gpi_dev->gpii_mask))
		continue;

		for (chan = 0; chan < MAX_CHANNELS_PER_GPII; chan++) {
		struct gpii_chan *gpii_chan = &gpii->gpii_chan[chan];

		gpi_free_chan_resources(&gpii_chan->vc.chan);
		}

		if (gpii->ilctxt)
		ipc_log_context_destroy(gpii->ilctxt);
		}

		if (gpi_dev->ilctxt)
		ipc_log_context_destroy(gpi_dev->ilctxt);

		debugfs_remove(pdentry);
		return 0;
		}

		static const struct of_device_id gpi_of_match[] = {
		{ .compatible = "qcom,gpi-dma" },
		{}
		@@ -3001,6 +3033,7 @@ MODULE_DEVICE_TABLE(of, gpi_of_match);

		static struct platform_driver gpi_driver = {
		.probe = gpi_probe,
		.remove = gpi_remove,
		.driver = {
		.name = GPI_DMA_DRV_NAME,
		.of_match_table = gpi_of_match,
		@@ -3012,7 +3045,14 @@ static int __init gpi_init(void)
		pdentry = debugfs_create_dir(GPI_DMA_DRV_NAME, NULL);
		return platform_driver_register(&gpi_driver);
		}
		module_init(gpi_init)

		static void __exit gpi_exit(void)
		{
		platform_driver_unregister(&gpi_driver);
		}

		module_init(gpi_init);
		module_exit(gpi_exit);

		MODULE_DESCRIPTION("QCOM GPI DMA engine driver");
		MODULE_LICENSE("GPL v2");