From a4f56d4b103d4e5d1a59a9118db0185a6bd1a83b Mon Sep 17 00:00:00 2001 From: Ira Snyder Date: Wed, 6 Jan 2010 13:34:01 +0000 Subject: [PATCH] fsldma: rename struct fsl_dma_chan to struct fsldma_chan This is the beginning of a cleanup which will change all instances of "fsl_dma" to "fsldma" to match the name of the driver itself. Signed-off-by: Ira W. Snyder Signed-off-by: Dan Williams --- drivers/dma/fsldma.c | 128 +++++++++++++++++++++++++++------------------------ drivers/dma/fsldma.h | 26 +++++------ 2 files changed, 81 insertions(+), 73 deletions(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 0b4e638..6795d96 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -37,7 +37,7 @@ #include #include "fsldma.h" -static void dma_init(struct fsl_dma_chan *fsl_chan) +static void dma_init(struct fsldma_chan *fsl_chan) { /* Reset the channel */ DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, 0, 32); @@ -64,23 +64,23 @@ static void dma_init(struct fsl_dma_chan *fsl_chan) } -static void set_sr(struct fsl_dma_chan *fsl_chan, u32 val) +static void set_sr(struct fsldma_chan *fsl_chan, u32 val) { DMA_OUT(fsl_chan, &fsl_chan->reg_base->sr, val, 32); } -static u32 get_sr(struct fsl_dma_chan *fsl_chan) +static u32 get_sr(struct fsldma_chan *fsl_chan) { return DMA_IN(fsl_chan, &fsl_chan->reg_base->sr, 32); } -static void set_desc_cnt(struct fsl_dma_chan *fsl_chan, +static void set_desc_cnt(struct fsldma_chan *fsl_chan, struct fsl_dma_ld_hw *hw, u32 count) { hw->count = CPU_TO_DMA(fsl_chan, count, 32); } -static void set_desc_src(struct fsl_dma_chan *fsl_chan, +static void set_desc_src(struct fsldma_chan *fsl_chan, struct fsl_dma_ld_hw *hw, dma_addr_t src) { u64 snoop_bits; @@ -90,7 +90,7 @@ static void set_desc_src(struct fsl_dma_chan *fsl_chan, hw->src_addr = CPU_TO_DMA(fsl_chan, snoop_bits | src, 64); } -static void set_desc_dest(struct fsl_dma_chan *fsl_chan, +static void set_desc_dest(struct fsldma_chan *fsl_chan, struct fsl_dma_ld_hw *hw, dma_addr_t dest) { u64 snoop_bits; @@ -100,7 +100,7 @@ static void set_desc_dest(struct fsl_dma_chan *fsl_chan, hw->dst_addr = CPU_TO_DMA(fsl_chan, snoop_bits | dest, 64); } -static void set_desc_next(struct fsl_dma_chan *fsl_chan, +static void set_desc_next(struct fsldma_chan *fsl_chan, struct fsl_dma_ld_hw *hw, dma_addr_t next) { u64 snoop_bits; @@ -110,38 +110,38 @@ static void set_desc_next(struct fsl_dma_chan *fsl_chan, hw->next_ln_addr = CPU_TO_DMA(fsl_chan, snoop_bits | next, 64); } -static void set_cdar(struct fsl_dma_chan *fsl_chan, dma_addr_t addr) +static void set_cdar(struct fsldma_chan *fsl_chan, dma_addr_t addr) { DMA_OUT(fsl_chan, &fsl_chan->reg_base->cdar, addr | FSL_DMA_SNEN, 64); } -static dma_addr_t get_cdar(struct fsl_dma_chan *fsl_chan) +static dma_addr_t get_cdar(struct fsldma_chan *fsl_chan) { return DMA_IN(fsl_chan, &fsl_chan->reg_base->cdar, 64) & ~FSL_DMA_SNEN; } -static void set_ndar(struct fsl_dma_chan *fsl_chan, dma_addr_t addr) +static void set_ndar(struct fsldma_chan *fsl_chan, dma_addr_t addr) { DMA_OUT(fsl_chan, &fsl_chan->reg_base->ndar, addr, 64); } -static dma_addr_t get_ndar(struct fsl_dma_chan *fsl_chan) +static dma_addr_t get_ndar(struct fsldma_chan *fsl_chan) { return DMA_IN(fsl_chan, &fsl_chan->reg_base->ndar, 64); } -static u32 get_bcr(struct fsl_dma_chan *fsl_chan) +static u32 get_bcr(struct fsldma_chan *fsl_chan) { return DMA_IN(fsl_chan, &fsl_chan->reg_base->bcr, 32); } -static int dma_is_idle(struct fsl_dma_chan *fsl_chan) +static int dma_is_idle(struct fsldma_chan *fsl_chan) { u32 sr = get_sr(fsl_chan); return (!(sr & FSL_DMA_SR_CB)) || (sr & FSL_DMA_SR_CH); } -static void dma_start(struct fsl_dma_chan *fsl_chan) +static void dma_start(struct fsldma_chan *fsl_chan) { u32 mode; @@ -164,7 +164,7 @@ static void dma_start(struct fsl_dma_chan *fsl_chan) DMA_OUT(fsl_chan, &fsl_chan->reg_base->mr, mode, 32); } -static void dma_halt(struct fsl_dma_chan *fsl_chan) +static void dma_halt(struct fsldma_chan *fsl_chan) { u32 mode; int i; @@ -186,7 +186,7 @@ static void dma_halt(struct fsl_dma_chan *fsl_chan) dev_err(fsl_chan->dev, "DMA halt timeout!\n"); } -static void set_ld_eol(struct fsl_dma_chan *fsl_chan, +static void set_ld_eol(struct fsldma_chan *fsl_chan, struct fsl_desc_sw *desc) { u64 snoop_bits; @@ -199,7 +199,7 @@ static void set_ld_eol(struct fsl_dma_chan *fsl_chan, | snoop_bits, 64); } -static void append_ld_queue(struct fsl_dma_chan *fsl_chan, +static void append_ld_queue(struct fsldma_chan *fsl_chan, struct fsl_desc_sw *new_desc) { struct fsl_desc_sw *queue_tail = to_fsl_desc(fsl_chan->ld_queue.prev); @@ -231,7 +231,7 @@ static void append_ld_queue(struct fsl_dma_chan *fsl_chan, * read data from SA, SA + 1, SA + 2, SA + 3, then loop back to SA, * SA + 1 ... and so on. */ -static void fsl_chan_set_src_loop_size(struct fsl_dma_chan *fsl_chan, int size) +static void fsl_chan_set_src_loop_size(struct fsldma_chan *fsl_chan, int size) { u32 mode; @@ -263,7 +263,7 @@ static void fsl_chan_set_src_loop_size(struct fsl_dma_chan *fsl_chan, int size) * write data to TA, TA + 1, TA + 2, TA + 3, then loop back to TA, * TA + 1 ... and so on. */ -static void fsl_chan_set_dest_loop_size(struct fsl_dma_chan *fsl_chan, int size) +static void fsl_chan_set_dest_loop_size(struct fsldma_chan *fsl_chan, int size) { u32 mode; @@ -296,7 +296,7 @@ static void fsl_chan_set_dest_loop_size(struct fsl_dma_chan *fsl_chan, int size) * * A size of 0 disables external pause control. The maximum size is 1024. */ -static void fsl_chan_set_request_count(struct fsl_dma_chan *fsl_chan, int size) +static void fsl_chan_set_request_count(struct fsldma_chan *fsl_chan, int size) { u32 mode; @@ -317,7 +317,7 @@ static void fsl_chan_set_request_count(struct fsl_dma_chan *fsl_chan, int size) * The DMA Request Count feature should be used in addition to this feature * to set the number of bytes to transfer before pausing the channel. */ -static void fsl_chan_toggle_ext_pause(struct fsl_dma_chan *fsl_chan, int enable) +static void fsl_chan_toggle_ext_pause(struct fsldma_chan *fsl_chan, int enable) { if (enable) fsl_chan->feature |= FSL_DMA_CHAN_PAUSE_EXT; @@ -335,7 +335,7 @@ static void fsl_chan_toggle_ext_pause(struct fsl_dma_chan *fsl_chan, int enable) * transfer immediately. The DMA channel will wait for the * control pin asserted. */ -static void fsl_chan_toggle_ext_start(struct fsl_dma_chan *fsl_chan, int enable) +static void fsl_chan_toggle_ext_start(struct fsldma_chan *fsl_chan, int enable) { if (enable) fsl_chan->feature |= FSL_DMA_CHAN_START_EXT; @@ -345,7 +345,7 @@ static void fsl_chan_toggle_ext_start(struct fsl_dma_chan *fsl_chan, int enable) static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx) { - struct fsl_dma_chan *fsl_chan = to_fsl_chan(tx->chan); + struct fsldma_chan *fsl_chan = to_fsl_chan(tx->chan); struct fsl_desc_sw *desc = tx_to_fsl_desc(tx); struct fsl_desc_sw *child; unsigned long flags; @@ -379,7 +379,7 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx) * Return - The descriptor allocated. NULL for failed. */ static struct fsl_desc_sw *fsl_dma_alloc_descriptor( - struct fsl_dma_chan *fsl_chan) + struct fsldma_chan *fsl_chan) { dma_addr_t pdesc; struct fsl_desc_sw *desc_sw; @@ -408,7 +408,7 @@ static struct fsl_desc_sw *fsl_dma_alloc_descriptor( */ static int fsl_dma_alloc_chan_resources(struct dma_chan *chan) { - struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + struct fsldma_chan *fsl_chan = to_fsl_chan(chan); /* Has this channel already been allocated? */ if (fsl_chan->desc_pool) @@ -435,7 +435,7 @@ static int fsl_dma_alloc_chan_resources(struct dma_chan *chan) */ static void fsl_dma_free_chan_resources(struct dma_chan *chan) { - struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + struct fsldma_chan *fsl_chan = to_fsl_chan(chan); struct fsl_desc_sw *desc, *_desc; unsigned long flags; @@ -459,7 +459,7 @@ static void fsl_dma_free_chan_resources(struct dma_chan *chan) static struct dma_async_tx_descriptor * fsl_dma_prep_interrupt(struct dma_chan *chan, unsigned long flags) { - struct fsl_dma_chan *fsl_chan; + struct fsldma_chan *fsl_chan; struct fsl_desc_sw *new; if (!chan) @@ -489,7 +489,7 @@ static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy( struct dma_chan *chan, dma_addr_t dma_dest, dma_addr_t dma_src, size_t len, unsigned long flags) { - struct fsl_dma_chan *fsl_chan; + struct fsldma_chan *fsl_chan; struct fsl_desc_sw *first = NULL, *prev = NULL, *new; struct list_head *list; size_t copy; @@ -575,7 +575,7 @@ static struct dma_async_tx_descriptor *fsl_dma_prep_slave_sg( struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len, enum dma_data_direction direction, unsigned long flags) { - struct fsl_dma_chan *fsl_chan; + struct fsldma_chan *fsl_chan; struct fsl_desc_sw *first = NULL, *prev = NULL, *new = NULL; struct fsl_dma_slave *slave; struct list_head *tx_list; @@ -759,7 +759,7 @@ fail: static void fsl_dma_device_terminate_all(struct dma_chan *chan) { - struct fsl_dma_chan *fsl_chan; + struct fsldma_chan *fsl_chan; struct fsl_desc_sw *desc, *tmp; unsigned long flags; @@ -786,7 +786,7 @@ static void fsl_dma_device_terminate_all(struct dma_chan *chan) * fsl_dma_update_completed_cookie - Update the completed cookie. * @fsl_chan : Freescale DMA channel */ -static void fsl_dma_update_completed_cookie(struct fsl_dma_chan *fsl_chan) +static void fsl_dma_update_completed_cookie(struct fsldma_chan *fsl_chan) { struct fsl_desc_sw *cur_desc, *desc; dma_addr_t ld_phy; @@ -820,7 +820,7 @@ static void fsl_dma_update_completed_cookie(struct fsl_dma_chan *fsl_chan) * If 'in_intr' is set, the function will move the link descriptor to * the recycle list. Otherwise, free it directly. */ -static void fsl_chan_ld_cleanup(struct fsl_dma_chan *fsl_chan) +static void fsl_chan_ld_cleanup(struct fsldma_chan *fsl_chan) { struct fsl_desc_sw *desc, *_desc; unsigned long flags; @@ -864,7 +864,7 @@ static void fsl_chan_ld_cleanup(struct fsl_dma_chan *fsl_chan) * fsl_chan_xfer_ld_queue - Transfer link descriptors in channel ld_queue. * @fsl_chan : Freescale DMA channel */ -static void fsl_chan_xfer_ld_queue(struct fsl_dma_chan *fsl_chan) +static void fsl_chan_xfer_ld_queue(struct fsldma_chan *fsl_chan) { struct list_head *ld_node; dma_addr_t next_dest_addr; @@ -912,7 +912,7 @@ out_unlock: */ static void fsl_dma_memcpy_issue_pending(struct dma_chan *chan) { - struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + struct fsldma_chan *fsl_chan = to_fsl_chan(chan); #ifdef FSL_DMA_LD_DEBUG struct fsl_desc_sw *ld; @@ -949,7 +949,7 @@ static enum dma_status fsl_dma_is_complete(struct dma_chan *chan, dma_cookie_t *done, dma_cookie_t *used) { - struct fsl_dma_chan *fsl_chan = to_fsl_chan(chan); + struct fsldma_chan *fsl_chan = to_fsl_chan(chan); dma_cookie_t last_used; dma_cookie_t last_complete; @@ -969,7 +969,7 @@ static enum dma_status fsl_dma_is_complete(struct dma_chan *chan, static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data) { - struct fsl_dma_chan *fsl_chan = (struct fsl_dma_chan *)data; + struct fsldma_chan *fsl_chan = data; u32 stat; int update_cookie = 0; int xfer_ld_q = 0; @@ -1050,9 +1050,9 @@ static irqreturn_t fsl_dma_chan_do_interrupt(int irq, void *data) static irqreturn_t fsl_dma_do_interrupt(int irq, void *data) { - struct fsl_dma_device *fdev = (struct fsl_dma_device *)data; - u32 gsr; + struct fsldma_device *fdev = data; int ch_nr; + u32 gsr; gsr = (fdev->feature & FSL_DMA_BIG_ENDIAN) ? in_be32(fdev->reg_base) : in_le32(fdev->reg_base); @@ -1064,19 +1064,23 @@ static irqreturn_t fsl_dma_do_interrupt(int irq, void *data) static void dma_do_tasklet(unsigned long data) { - struct fsl_dma_chan *fsl_chan = (struct fsl_dma_chan *)data; + struct fsldma_chan *fsl_chan = (struct fsldma_chan *)data; fsl_chan_ld_cleanup(fsl_chan); } -static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev, +/*----------------------------------------------------------------------------*/ +/* OpenFirmware Subsystem */ +/*----------------------------------------------------------------------------*/ + +static int __devinit fsl_dma_chan_probe(struct fsldma_device *fdev, struct device_node *node, u32 feature, const char *compatible) { - struct fsl_dma_chan *new_fsl_chan; + struct fsldma_chan *new_fsl_chan; struct resource res; int err; /* alloc channel */ - new_fsl_chan = kzalloc(sizeof(struct fsl_dma_chan), GFP_KERNEL); + new_fsl_chan = kzalloc(sizeof(*new_fsl_chan), GFP_KERNEL); if (!new_fsl_chan) { dev_err(fdev->dev, "No free memory for allocating " "dma channels!\n"); @@ -1167,7 +1171,7 @@ err_no_reg: return err; } -static void fsl_dma_chan_remove(struct fsl_dma_chan *fchan) +static void fsl_dma_chan_remove(struct fsldma_chan *fchan) { if (fchan->irq != NO_IRQ) free_irq(fchan->irq, fchan); @@ -1176,15 +1180,15 @@ static void fsl_dma_chan_remove(struct fsl_dma_chan *fchan) kfree(fchan); } -static int __devinit of_fsl_dma_probe(struct of_device *dev, +static int __devinit fsldma_of_probe(struct of_device *dev, const struct of_device_id *match) { int err; - struct fsl_dma_device *fdev; + struct fsldma_device *fdev; struct device_node *child; struct resource res; - fdev = kzalloc(sizeof(struct fsl_dma_device), GFP_KERNEL); + fdev = kzalloc(sizeof(*fdev), GFP_KERNEL); if (!fdev) { dev_err(&dev->dev, "No enough memory for 'priv'\n"); return -ENOMEM; @@ -1256,9 +1260,9 @@ err_no_reg: return err; } -static int of_fsl_dma_remove(struct of_device *of_dev) +static int fsldma_of_remove(struct of_device *of_dev) { - struct fsl_dma_device *fdev; + struct fsldma_device *fdev; unsigned int i; fdev = dev_get_drvdata(&of_dev->dev); @@ -1280,39 +1284,43 @@ static int of_fsl_dma_remove(struct of_device *of_dev) return 0; } -static struct of_device_id of_fsl_dma_ids[] = { +static struct of_device_id fsldma_of_ids[] = { { .compatible = "fsl,eloplus-dma", }, { .compatible = "fsl,elo-dma", }, {} }; -static struct of_platform_driver of_fsl_dma_driver = { - .name = "fsl-elo-dma", - .match_table = of_fsl_dma_ids, - .probe = of_fsl_dma_probe, - .remove = of_fsl_dma_remove, +static struct of_platform_driver fsldma_of_driver = { + .name = "fsl-elo-dma", + .match_table = fsldma_of_ids, + .probe = fsldma_of_probe, + .remove = fsldma_of_remove, }; -static __init int of_fsl_dma_init(void) +/*----------------------------------------------------------------------------*/ +/* Module Init / Exit */ +/*----------------------------------------------------------------------------*/ + +static __init int fsldma_init(void) { int ret; pr_info("Freescale Elo / Elo Plus DMA driver\n"); - ret = of_register_platform_driver(&of_fsl_dma_driver); + ret = of_register_platform_driver(&fsldma_of_driver); if (ret) pr_err("fsldma: failed to register platform driver\n"); return ret; } -static void __exit of_fsl_dma_exit(void) +static void __exit fsldma_exit(void) { - of_unregister_platform_driver(&of_fsl_dma_driver); + of_unregister_platform_driver(&fsldma_of_driver); } -subsys_initcall(of_fsl_dma_init); -module_exit(of_fsl_dma_exit); +subsys_initcall(fsldma_init); +module_exit(fsldma_exit); MODULE_DESCRIPTION("Freescale Elo / Elo Plus DMA driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h index dbb5b5c..f8c2baa 100644 --- a/drivers/dma/fsldma.h +++ b/drivers/dma/fsldma.h @@ -94,7 +94,7 @@ struct fsl_desc_sw { struct dma_async_tx_descriptor async_tx; } __attribute__((aligned(32))); -struct fsl_dma_chan_regs { +struct fsldma_chan_regs { u32 mr; /* 0x00 - Mode Register */ u32 sr; /* 0x04 - Status Register */ u64 cdar; /* 0x08 - Current descriptor address register */ @@ -104,19 +104,19 @@ struct fsl_dma_chan_regs { u64 ndar; /* 0x24 - Next Descriptor Address Register */ }; -struct fsl_dma_chan; +struct fsldma_chan; #define FSL_DMA_MAX_CHANS_PER_DEVICE 4 -struct fsl_dma_device { +struct fsldma_device { void __iomem *reg_base; /* DGSR register base */ struct device *dev; struct dma_device common; - struct fsl_dma_chan *chan[FSL_DMA_MAX_CHANS_PER_DEVICE]; + struct fsldma_chan *chan[FSL_DMA_MAX_CHANS_PER_DEVICE]; u32 feature; /* The same as DMA channels */ int irq; /* Channel IRQ */ }; -/* Define macros for fsl_dma_chan->feature property */ +/* Define macros for fsldma_chan->feature property */ #define FSL_DMA_LITTLE_ENDIAN 0x00000000 #define FSL_DMA_BIG_ENDIAN 0x00000001 @@ -127,8 +127,8 @@ struct fsl_dma_device { #define FSL_DMA_CHAN_PAUSE_EXT 0x00001000 #define FSL_DMA_CHAN_START_EXT 0x00002000 -struct fsl_dma_chan { - struct fsl_dma_chan_regs __iomem *reg_base; +struct fsldma_chan { + struct fsldma_chan_regs __iomem *reg_base; dma_cookie_t completed_cookie; /* The maximum cookie completed */ spinlock_t desc_lock; /* Descriptor operation lock */ struct list_head ld_queue; /* Link descriptors queue */ @@ -140,14 +140,14 @@ struct fsl_dma_chan { struct tasklet_struct tasklet; u32 feature; - void (*toggle_ext_pause)(struct fsl_dma_chan *fsl_chan, int enable); - void (*toggle_ext_start)(struct fsl_dma_chan *fsl_chan, int enable); - void (*set_src_loop_size)(struct fsl_dma_chan *fsl_chan, int size); - void (*set_dest_loop_size)(struct fsl_dma_chan *fsl_chan, int size); - void (*set_request_count)(struct fsl_dma_chan *fsl_chan, int size); + void (*toggle_ext_pause)(struct fsldma_chan *fsl_chan, int enable); + void (*toggle_ext_start)(struct fsldma_chan *fsl_chan, int enable); + void (*set_src_loop_size)(struct fsldma_chan *fsl_chan, int size); + void (*set_dest_loop_size)(struct fsldma_chan *fsl_chan, int size); + void (*set_request_count)(struct fsldma_chan *fsl_chan, int size); }; -#define to_fsl_chan(chan) container_of(chan, struct fsl_dma_chan, common) +#define to_fsl_chan(chan) container_of(chan, struct fsldma_chan, common) #define to_fsl_desc(lh) container_of(lh, struct fsl_desc_sw, node) #define tx_to_fsl_desc(tx) container_of(tx, struct fsl_desc_sw, async_tx) -- 1.8.2.3