dmaengine: qcom_hidma: cleanup sysfs entries during remove

[platform/kernel/linux-rpi.git] / drivers / dma / qcom / hidma.h

diff --git a/drivers/dma/qcom/hidma.h b/drivers/dma/qcom/hidma.h
index e52e207..c7d0142 100644 (file)
--- a/drivers/dma/qcom/hidma.h
+++ b/drivers/dma/qcom/hidma.h
@@ -46,6 +46,7 @@ struct hidma_tre {
 };
 
 struct hidma_lldev {
+       bool msi_support;               /* flag indicating MSI support    */
        bool initialized;               /* initialized flag               */
        u8 trch_state;                  /* trch_state of the device       */
        u8 evch_state;                  /* evch_state of the device       */
@@ -58,7 +59,7 @@ struct hidma_lldev {
        void __iomem *evca;             /* Event Channel address          */
        struct hidma_tre
                **pending_tre_list;     /* Pointers to pending TREs       */
-       s32 pending_tre_count;          /* Number of TREs pending         */
+       atomic_t pending_tre_count;     /* Number of TREs pending         */
 
        void *tre_ring;                 /* TRE ring                       */
        dma_addr_t tre_dma;             /* TRE ring to be shared with HW  */
@@ -114,6 +115,7 @@ struct hidma_dev {
        int                             irq;
        int                             chidx;
        u32                             nr_descriptors;
+       int                             msi_virqbase;
 
        struct hidma_lldev              *lldev;
        void                            __iomem *dev_trca;
@@ -128,6 +130,9 @@ struct hidma_dev {
        struct dentry                   *debugfs;
        struct dentry                   *stats;
 
+       /* sysfs entry for the channel id */
+       struct device_attribute         *chid_attrs;
+
        /* Task delivering issue_pending */
        struct tasklet_struct           task;
 };
@@ -145,12 +150,14 @@ int hidma_ll_disable(struct hidma_lldev *lldev);
 int hidma_ll_enable(struct hidma_lldev *llhndl);
 void hidma_ll_set_transfer_params(struct hidma_lldev *llhndl, u32 tre_ch,
        dma_addr_t src, dma_addr_t dest, u32 len, u32 flags);
+void hidma_ll_setup_irq(struct hidma_lldev *lldev, bool msi);
 int hidma_ll_setup(struct hidma_lldev *lldev);
 struct hidma_lldev *hidma_ll_init(struct device *dev, u32 max_channels,
                        void __iomem *trca, void __iomem *evca,
                        u8 chidx);
 int hidma_ll_uninit(struct hidma_lldev *llhndl);
 irqreturn_t hidma_ll_inthandler(int irq, void *arg);
+irqreturn_t hidma_ll_inthandler_msi(int irq, void *arg, int cause);
 void hidma_cleanup_pending_tre(struct hidma_lldev *llhndl, u8 err_info,
                                u8 err_code);
 int hidma_debug_init(struct hidma_dev *dmadev);