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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 12:11:01 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 12:11:01 -0800 |
commit | b78b499a67c3f77aeb6cd0b54724bc38b141255d (patch) | |
tree | 8ebdb5303bb1552577182d9fe4086910b8648d22 /drivers/fpga/zynq-fpga.c | |
parent | 098c30557a9a19827240aaadc137e4668157dc6b (diff) | |
parent | 190cc65e912de7e8f7ebddcecfbf55a610281a8c (diff) | |
download | op-kernel-dev-b78b499a67c3f77aeb6cd0b54724bc38b141255d.zip op-kernel-dev-b78b499a67c3f77aeb6cd0b54724bc38b141255d.tar.gz |
Merge tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver patches for 4.10-rc1. Lots of tiny
changes over lots of "minor" driver subsystems, the largest being some
new FPGA drivers. Other than that, a few other new drivers, but no new
driver subsystems added for this kernel cycle, a nice change.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (107 commits)
uio-hv-generic: store physical addresses instead of virtual
Tools: hv: kvp: configurable external scripts path
uio-hv-generic: new userspace i/o driver for VMBus
vmbus: add support for dynamic device id's
hv: change clockevents unbind tactics
hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()
hyperv: Fix spelling of HV_UNKOWN
mei: bus: enable non-blocking RX
mei: fix the back to back interrupt handling
mei: synchronize irq before initiating a reset.
VME: Remove shutdown entry from vme_driver
auxdisplay: ht16k33: select framebuffer helper modules
MAINTAINERS: add git url for fpga
fpga: Clarify how write_init works streaming modes
fpga zynq: Fix incorrect ISR state on bootup
fpga zynq: Remove priv->dev
fpga zynq: Add missing \n to messages
fpga: Add COMPILE_TEST to all drivers
uio: pruss: add clk_disable()
char/pcmcia: add some error checking in scr24x_read()
...
Diffstat (limited to 'drivers/fpga/zynq-fpga.c')
-rw-r--r-- | drivers/fpga/zynq-fpga.c | 56 |
1 files changed, 29 insertions, 27 deletions
diff --git a/drivers/fpga/zynq-fpga.c b/drivers/fpga/zynq-fpga.c index c2fb412..1812bf7 100644 --- a/drivers/fpga/zynq-fpga.c +++ b/drivers/fpga/zynq-fpga.c @@ -118,7 +118,6 @@ #define FPGA_RST_NONE_MASK 0x0 struct zynq_fpga_priv { - struct device *dev; int irq; struct clk *clk; @@ -175,7 +174,8 @@ static irqreturn_t zynq_fpga_isr(int irq, void *data) return IRQ_HANDLED; } -static int zynq_fpga_ops_write_init(struct fpga_manager *mgr, u32 flags, +static int zynq_fpga_ops_write_init(struct fpga_manager *mgr, + struct fpga_image_info *info, const char *buf, size_t count) { struct zynq_fpga_priv *priv; @@ -189,7 +189,7 @@ static int zynq_fpga_ops_write_init(struct fpga_manager *mgr, u32 flags, return err; /* don't globally reset PL if we're doing partial reconfig */ - if (!(flags & FPGA_MGR_PARTIAL_RECONFIG)) { + if (!(info->flags & FPGA_MGR_PARTIAL_RECONFIG)) { /* assert AXI interface resets */ regmap_write(priv->slcr, SLCR_FPGA_RST_CTRL_OFFSET, FPGA_RST_ALL_MASK); @@ -217,7 +217,7 @@ static int zynq_fpga_ops_write_init(struct fpga_manager *mgr, u32 flags, INIT_POLL_DELAY, INIT_POLL_TIMEOUT); if (err) { - dev_err(priv->dev, "Timeout waiting for PCFG_INIT"); + dev_err(&mgr->dev, "Timeout waiting for PCFG_INIT\n"); goto out_err; } @@ -231,7 +231,7 @@ static int zynq_fpga_ops_write_init(struct fpga_manager *mgr, u32 flags, INIT_POLL_DELAY, INIT_POLL_TIMEOUT); if (err) { - dev_err(priv->dev, "Timeout waiting for !PCFG_INIT"); + dev_err(&mgr->dev, "Timeout waiting for !PCFG_INIT\n"); goto out_err; } @@ -245,7 +245,7 @@ static int zynq_fpga_ops_write_init(struct fpga_manager *mgr, u32 flags, INIT_POLL_DELAY, INIT_POLL_TIMEOUT); if (err) { - dev_err(priv->dev, "Timeout waiting for PCFG_INIT"); + dev_err(&mgr->dev, "Timeout waiting for PCFG_INIT\n"); goto out_err; } } @@ -262,7 +262,7 @@ static int zynq_fpga_ops_write_init(struct fpga_manager *mgr, u32 flags, /* check that we have room in the command queue */ status = zynq_fpga_read(priv, STATUS_OFFSET); if (status & STATUS_DMA_Q_F) { - dev_err(priv->dev, "DMA command queue full"); + dev_err(&mgr->dev, "DMA command queue full\n"); err = -EBUSY; goto out_err; } @@ -295,7 +295,8 @@ static int zynq_fpga_ops_write(struct fpga_manager *mgr, in_count = count; priv = mgr->priv; - kbuf = dma_alloc_coherent(priv->dev, count, &dma_addr, GFP_KERNEL); + kbuf = + dma_alloc_coherent(mgr->dev.parent, count, &dma_addr, GFP_KERNEL); if (!kbuf) return -ENOMEM; @@ -331,19 +332,19 @@ static int zynq_fpga_ops_write(struct fpga_manager *mgr, zynq_fpga_write(priv, INT_STS_OFFSET, intr_status); if (!((intr_status & IXR_D_P_DONE_MASK) == IXR_D_P_DONE_MASK)) { - dev_err(priv->dev, "Error configuring FPGA"); + dev_err(&mgr->dev, "Error configuring FPGA\n"); err = -EFAULT; } clk_disable(priv->clk); out_free: - dma_free_coherent(priv->dev, in_count, kbuf, dma_addr); - + dma_free_coherent(mgr->dev.parent, count, kbuf, dma_addr); return err; } -static int zynq_fpga_ops_write_complete(struct fpga_manager *mgr, u32 flags) +static int zynq_fpga_ops_write_complete(struct fpga_manager *mgr, + struct fpga_image_info *info) { struct zynq_fpga_priv *priv = mgr->priv; int err; @@ -364,7 +365,7 @@ static int zynq_fpga_ops_write_complete(struct fpga_manager *mgr, u32 flags) return err; /* for the partial reconfig case we didn't touch the level shifters */ - if (!(flags & FPGA_MGR_PARTIAL_RECONFIG)) { + if (!(info->flags & FPGA_MGR_PARTIAL_RECONFIG)) { /* enable level shifters from PL to PS */ regmap_write(priv->slcr, SLCR_LVL_SHFTR_EN_OFFSET, LVL_SHFTR_ENABLE_PL_TO_PS); @@ -416,8 +417,6 @@ static int zynq_fpga_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; - priv->dev = dev; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); priv->io_base = devm_ioremap_resource(dev, res); if (IS_ERR(priv->io_base)) @@ -426,7 +425,7 @@ static int zynq_fpga_probe(struct platform_device *pdev) priv->slcr = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon"); if (IS_ERR(priv->slcr)) { - dev_err(dev, "unable to get zynq-slcr regmap"); + dev_err(dev, "unable to get zynq-slcr regmap\n"); return PTR_ERR(priv->slcr); } @@ -434,38 +433,41 @@ static int zynq_fpga_probe(struct platform_device *pdev) priv->irq = platform_get_irq(pdev, 0); if (priv->irq < 0) { - dev_err(dev, "No IRQ available"); + dev_err(dev, "No IRQ available\n"); return priv->irq; } - err = devm_request_irq(dev, priv->irq, zynq_fpga_isr, 0, - dev_name(dev), priv); - if (err) { - dev_err(dev, "unable to request IRQ"); - return err; - } - priv->clk = devm_clk_get(dev, "ref_clk"); if (IS_ERR(priv->clk)) { - dev_err(dev, "input clock not found"); + dev_err(dev, "input clock not found\n"); return PTR_ERR(priv->clk); } err = clk_prepare_enable(priv->clk); if (err) { - dev_err(dev, "unable to enable clock"); + dev_err(dev, "unable to enable clock\n"); return err; } /* unlock the device */ zynq_fpga_write(priv, UNLOCK_OFFSET, UNLOCK_MASK); + zynq_fpga_write(priv, INT_MASK_OFFSET, 0xFFFFFFFF); + zynq_fpga_write(priv, INT_STS_OFFSET, IXR_ALL_MASK); + err = devm_request_irq(dev, priv->irq, zynq_fpga_isr, 0, dev_name(dev), + priv); + if (err) { + dev_err(dev, "unable to request IRQ\n"); + clk_disable_unprepare(priv->clk); + return err; + } + clk_disable(priv->clk); err = fpga_mgr_register(dev, "Xilinx Zynq FPGA Manager", &zynq_fpga_ops, priv); if (err) { - dev_err(dev, "unable to register FPGA manager"); + dev_err(dev, "unable to register FPGA manager\n"); clk_unprepare(priv->clk); return err; } |