diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.9/862-dmaengine-qcom-bam_dma-Add-custom-data-mapping.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.9/862-dmaengine-qcom-bam_dma-Add-custom-data-mapping.patch | 70 |
1 files changed, 31 insertions, 39 deletions
diff --git a/target/linux/ipq806x/patches-4.9/862-dmaengine-qcom-bam_dma-Add-custom-data-mapping.patch b/target/linux/ipq806x/patches-4.9/862-dmaengine-qcom-bam_dma-Add-custom-data-mapping.patch index 3b26120..796938f 100644 --- a/target/linux/ipq806x/patches-4.9/862-dmaengine-qcom-bam_dma-Add-custom-data-mapping.patch +++ b/target/linux/ipq806x/patches-4.9/862-dmaengine-qcom-bam_dma-Add-custom-data-mapping.patch @@ -14,8 +14,6 @@ Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org> include/linux/dmaengine.h | 14 ++++++ 3 files changed, 119 insertions(+), 6 deletions(-) -diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c -index 03c4eb3..bde8d70 100644 --- a/drivers/dma/qcom/bam_dma.c +++ b/drivers/dma/qcom/bam_dma.c @@ -49,6 +49,7 @@ @@ -23,24 +21,24 @@ index 03c4eb3..bde8d70 100644 #include <linux/dmaengine.h> #include <linux/pm_runtime.h> +#include <linux/dma/qcom_bam_dma.h> - + #include "../dmaengine.h" #include "../virt-dma.h" @@ -61,11 +62,6 @@ struct bam_desc_hw { - + #define BAM_DMA_AUTOSUSPEND_DELAY 100 - + -#define DESC_FLAG_INT BIT(15) -#define DESC_FLAG_EOT BIT(14) -#define DESC_FLAG_EOB BIT(13) -#define DESC_FLAG_NWD BIT(12) - struct bam_async_desc { - struct virt_dma_desc vd; - -@@ -670,6 +666,93 @@ static struct dma_async_tx_descriptor *bam_prep_slave_sg(struct dma_chan *chan, + struct virt_dma_desc vd; + +@@ -670,6 +666,93 @@ err_out: } - + /** + * bam_prep_dma_custom_mapping - Prep DMA descriptor from custom data + * @@ -132,31 +130,29 @@ index 03c4eb3..bde8d70 100644 * bam_dma_terminate_all - terminate all transactions on a channel * @bchan: bam dma channel * -@@ -960,7 +1043,7 @@ static void bam_start_dma(struct bam_chan *bchan) - - /* set any special flags on the last descriptor */ - if (async_desc->num_desc == async_desc->xfer_len) +@@ -960,7 +1043,7 @@ static void bam_start_dma(struct bam_cha + + /* set any special flags on the last descriptor */ + if (async_desc->num_desc == async_desc->xfer_len) - desc[async_desc->xfer_len - 1].flags = + desc[async_desc->xfer_len - 1].flags |= - cpu_to_le16(async_desc->flags); - else - desc[async_desc->xfer_len - 1].flags |= -@@ -1237,6 +1320,8 @@ static int bam_dma_probe(struct platform_device *pdev) - bdev->common.device_alloc_chan_resources = bam_alloc_chan; - bdev->common.device_free_chan_resources = bam_free_chan; - bdev->common.device_prep_slave_sg = bam_prep_slave_sg; + cpu_to_le16(async_desc->flags); + else + desc[async_desc->xfer_len - 1].flags |= +@@ -1237,6 +1320,8 @@ static int bam_dma_probe(struct platform + bdev->common.device_alloc_chan_resources = bam_alloc_chan; + bdev->common.device_free_chan_resources = bam_free_chan; + bdev->common.device_prep_slave_sg = bam_prep_slave_sg; + bdev->common.device_prep_dma_custom_mapping = + bam_prep_dma_custom_mapping; - bdev->common.device_config = bam_slave_config; - bdev->common.device_pause = bam_pause; - bdev->common.device_resume = bam_resume; -diff --git a/include/linux/dma/qcom_bam_dma.h b/include/linux/dma/qcom_bam_dma.h -index 7e87a85..7113c77 100644 + bdev->common.device_config = bam_slave_config; + bdev->common.device_pause = bam_pause; + bdev->common.device_resume = bam_resume; --- a/include/linux/dma/qcom_bam_dma.h +++ b/include/linux/dma/qcom_bam_dma.h @@ -65,6 +65,19 @@ enum bam_command_type { }; - + /* + * QCOM BAM DMA custom data + * @@ -174,8 +170,6 @@ index 7e87a85..7113c77 100644 * qcom_bam_sg_init_table - Init QCOM BAM SGL * @bam_sgl: bam sgl * @nents: number of entries in bam sgl -diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h -index cc535a4..627c125 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -692,6 +692,8 @@ struct dma_filter { @@ -188,19 +182,19 @@ index cc535a4..627c125 100644 * code * @device_pause: Pauses any transfer happening on a channel. Returns @@ -783,6 +785,9 @@ struct dma_device { - struct dma_async_tx_descriptor *(*device_prep_dma_imm_data)( - struct dma_chan *chan, dma_addr_t dst, u64 data, - unsigned long flags); + struct dma_async_tx_descriptor *(*device_prep_dma_imm_data)( + struct dma_chan *chan, dma_addr_t dst, u64 data, + unsigned long flags); + struct dma_async_tx_descriptor *(*device_prep_dma_custom_mapping)( + struct dma_chan *chan, void *data, + unsigned long flags); - - int (*device_config)(struct dma_chan *chan, - struct dma_slave_config *config); -@@ -899,6 +904,15 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg( - src_sg, src_nents, flags); + + int (*device_config)(struct dma_chan *chan, + struct dma_slave_config *config); +@@ -899,6 +904,15 @@ static inline struct dma_async_tx_descri + src_sg, src_nents, flags); } - + +static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_custom_mapping( + struct dma_chan *chan, + void *data, @@ -213,5 +207,3 @@ index cc535a4..627c125 100644 /** * dmaengine_terminate_all() - Terminate all active DMA transfers * @chan: The channel for which to terminate the transfers --- -2.7.2 |