A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-08 12:58:12 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge "dmaengine: gpi: Add support to make GPI driver GKI compliant"

Browse source
This commit is contained in:
qctecmdr 2019-12-07 00:59:42 -08:00 • committed by Gerrit - the friendly Code Review server
commit eda093d5ef
1 changed files with 43 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

46
drivers/dma/qcom/gpi.c
View file

@ -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");