fpga: mgr: add devm_fpga_mgr_create
Add devm_fpga_mgr_create() which is the managed version of fpga_mgr_create(). Change current FPGA manager drivers to use devm_fpga_mgr_create() Signed-off-by: Alan Tull <atull@kernel.org> Suggested-by: Federico Vaga <federico.vaga@cern.ch> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
1c87dc897b
commit
084181fe8c
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@ -49,18 +49,14 @@ probe function calls fpga_mgr_register(), such as::
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* them in priv
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* them in priv
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*/
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*/
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mgr = fpga_mgr_create(dev, "Altera SOCFPGA FPGA Manager",
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mgr = devm_fpga_mgr_create(dev, "Altera SOCFPGA FPGA Manager",
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&socfpga_fpga_ops, priv);
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&socfpga_fpga_ops, priv);
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if (!mgr)
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if (!mgr)
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return -ENOMEM;
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return -ENOMEM;
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platform_set_drvdata(pdev, mgr);
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platform_set_drvdata(pdev, mgr);
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ret = fpga_mgr_register(mgr);
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return fpga_mgr_register(mgr);
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if (ret)
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fpga_mgr_free(mgr);
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return ret;
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}
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}
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static int socfpga_fpga_remove(struct platform_device *pdev)
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static int socfpga_fpga_remove(struct platform_device *pdev)
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@ -169,6 +165,9 @@ API for implementing a new FPGA Manager driver
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.. kernel-doc:: include/linux/fpga/fpga-mgr.h
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.. kernel-doc:: include/linux/fpga/fpga-mgr.h
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:functions: fpga_manager_ops
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:functions: fpga_manager_ops
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.. kernel-doc:: drivers/fpga/fpga-mgr.c
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:functions: devm_fpga_mgr_create
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.. kernel-doc:: drivers/fpga/fpga-mgr.c
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.. kernel-doc:: drivers/fpga/fpga-mgr.c
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:functions: fpga_mgr_create
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:functions: fpga_mgr_create
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@ -453,8 +453,8 @@ static int altera_cvp_probe(struct pci_dev *pdev,
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snprintf(conf->mgr_name, sizeof(conf->mgr_name), "%s @%s",
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snprintf(conf->mgr_name, sizeof(conf->mgr_name), "%s @%s",
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ALTERA_CVP_MGR_NAME, pci_name(pdev));
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ALTERA_CVP_MGR_NAME, pci_name(pdev));
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mgr = fpga_mgr_create(&pdev->dev, conf->mgr_name,
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mgr = devm_fpga_mgr_create(&pdev->dev, conf->mgr_name,
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&altera_cvp_ops, conf);
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&altera_cvp_ops, conf);
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if (!mgr) {
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if (!mgr) {
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ret = -ENOMEM;
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ret = -ENOMEM;
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goto err_unmap;
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goto err_unmap;
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@ -463,10 +463,8 @@ static int altera_cvp_probe(struct pci_dev *pdev,
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pci_set_drvdata(pdev, mgr);
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pci_set_drvdata(pdev, mgr);
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ret = fpga_mgr_register(mgr);
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ret = fpga_mgr_register(mgr);
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if (ret) {
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if (ret)
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fpga_mgr_free(mgr);
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goto err_unmap;
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goto err_unmap;
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}
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ret = driver_create_file(&altera_cvp_driver.driver,
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ret = driver_create_file(&altera_cvp_driver.driver,
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&driver_attr_chkcfg);
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&driver_attr_chkcfg);
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@ -177,7 +177,6 @@ int alt_pr_register(struct device *dev, void __iomem *reg_base)
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{
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{
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struct alt_pr_priv *priv;
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struct alt_pr_priv *priv;
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struct fpga_manager *mgr;
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struct fpga_manager *mgr;
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int ret;
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u32 val;
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u32 val;
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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@ -192,17 +191,13 @@ int alt_pr_register(struct device *dev, void __iomem *reg_base)
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(val & ALT_PR_CSR_STATUS_MSK) >> ALT_PR_CSR_STATUS_SFT,
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(val & ALT_PR_CSR_STATUS_MSK) >> ALT_PR_CSR_STATUS_SFT,
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(int)(val & ALT_PR_CSR_PR_START));
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(int)(val & ALT_PR_CSR_PR_START));
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mgr = fpga_mgr_create(dev, dev_name(dev), &alt_pr_ops, priv);
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mgr = devm_fpga_mgr_create(dev, dev_name(dev), &alt_pr_ops, priv);
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if (!mgr)
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if (!mgr)
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return -ENOMEM;
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return -ENOMEM;
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dev_set_drvdata(dev, mgr);
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dev_set_drvdata(dev, mgr);
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ret = fpga_mgr_register(mgr);
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return fpga_mgr_register(mgr);
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if (ret)
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fpga_mgr_free(mgr);
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return ret;
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}
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}
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EXPORT_SYMBOL_GPL(alt_pr_register);
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EXPORT_SYMBOL_GPL(alt_pr_register);
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@ -239,7 +239,6 @@ static int altera_ps_probe(struct spi_device *spi)
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struct altera_ps_conf *conf;
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struct altera_ps_conf *conf;
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const struct of_device_id *of_id;
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const struct of_device_id *of_id;
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struct fpga_manager *mgr;
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struct fpga_manager *mgr;
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int ret;
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conf = devm_kzalloc(&spi->dev, sizeof(*conf), GFP_KERNEL);
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conf = devm_kzalloc(&spi->dev, sizeof(*conf), GFP_KERNEL);
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if (!conf)
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if (!conf)
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@ -275,18 +274,14 @@ static int altera_ps_probe(struct spi_device *spi)
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snprintf(conf->mgr_name, sizeof(conf->mgr_name), "%s %s",
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snprintf(conf->mgr_name, sizeof(conf->mgr_name), "%s %s",
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dev_driver_string(&spi->dev), dev_name(&spi->dev));
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dev_driver_string(&spi->dev), dev_name(&spi->dev));
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mgr = fpga_mgr_create(&spi->dev, conf->mgr_name,
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mgr = devm_fpga_mgr_create(&spi->dev, conf->mgr_name,
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&altera_ps_ops, conf);
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&altera_ps_ops, conf);
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if (!mgr)
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if (!mgr)
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return -ENOMEM;
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return -ENOMEM;
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spi_set_drvdata(spi, mgr);
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spi_set_drvdata(spi, mgr);
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ret = fpga_mgr_register(mgr);
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return fpga_mgr_register(mgr);
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if (ret)
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fpga_mgr_free(mgr);
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return ret;
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}
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}
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static int altera_ps_remove(struct spi_device *spi)
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static int altera_ps_remove(struct spi_device *spi)
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@ -287,7 +287,6 @@ static int fme_mgr_probe(struct platform_device *pdev)
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struct fme_mgr_priv *priv;
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struct fme_mgr_priv *priv;
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struct fpga_manager *mgr;
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struct fpga_manager *mgr;
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struct resource *res;
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struct resource *res;
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int ret;
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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if (!priv)
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if (!priv)
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@ -309,19 +308,15 @@ static int fme_mgr_probe(struct platform_device *pdev)
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fme_mgr_get_compat_id(priv->ioaddr, compat_id);
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fme_mgr_get_compat_id(priv->ioaddr, compat_id);
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mgr = fpga_mgr_create(dev, "DFL FME FPGA Manager",
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mgr = devm_fpga_mgr_create(dev, "DFL FME FPGA Manager",
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&fme_mgr_ops, priv);
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&fme_mgr_ops, priv);
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if (!mgr)
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if (!mgr)
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return -ENOMEM;
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return -ENOMEM;
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mgr->compat_id = compat_id;
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mgr->compat_id = compat_id;
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platform_set_drvdata(pdev, mgr);
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platform_set_drvdata(pdev, mgr);
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ret = fpga_mgr_register(mgr);
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return fpga_mgr_register(mgr);
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if (ret)
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fpga_mgr_free(mgr);
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return ret;
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}
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}
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static int fme_mgr_remove(struct platform_device *pdev)
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static int fme_mgr_remove(struct platform_device *pdev)
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@ -558,6 +558,9 @@ EXPORT_SYMBOL_GPL(fpga_mgr_unlock);
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* @mops: pointer to structure of fpga manager ops
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* @mops: pointer to structure of fpga manager ops
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* @priv: fpga manager private data
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* @priv: fpga manager private data
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*
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*
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* The caller of this function is responsible for freeing the struct with
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* fpga_mgr_free(). Using devm_fpga_mgr_create() instead is recommended.
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*
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* Return: pointer to struct fpga_manager or NULL
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* Return: pointer to struct fpga_manager or NULL
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*/
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*/
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struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
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struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name,
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@ -618,8 +621,8 @@ error_kfree:
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EXPORT_SYMBOL_GPL(fpga_mgr_create);
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EXPORT_SYMBOL_GPL(fpga_mgr_create);
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/**
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/**
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* fpga_mgr_free - deallocate a FPGA manager
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* fpga_mgr_free - free a FPGA manager created with fpga_mgr_create()
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* @mgr: fpga manager struct created by fpga_mgr_create
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* @mgr: fpga manager struct
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*/
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*/
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void fpga_mgr_free(struct fpga_manager *mgr)
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void fpga_mgr_free(struct fpga_manager *mgr)
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{
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{
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@ -628,9 +631,55 @@ void fpga_mgr_free(struct fpga_manager *mgr)
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}
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}
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EXPORT_SYMBOL_GPL(fpga_mgr_free);
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EXPORT_SYMBOL_GPL(fpga_mgr_free);
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static void devm_fpga_mgr_release(struct device *dev, void *res)
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{
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struct fpga_manager *mgr = *(struct fpga_manager **)res;
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fpga_mgr_free(mgr);
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}
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/**
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* devm_fpga_mgr_create - create and initialize a managed FPGA manager struct
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* @dev: fpga manager device from pdev
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* @name: fpga manager name
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* @mops: pointer to structure of fpga manager ops
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* @priv: fpga manager private data
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*
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* This function is intended for use in a FPGA manager driver's probe function.
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* After the manager driver creates the manager struct with
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* devm_fpga_mgr_create(), it should register it with fpga_mgr_register(). The
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* manager driver's remove function should call fpga_mgr_unregister(). The
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* manager struct allocated with this function will be freed automatically on
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* driver detach. This includes the case of a probe function returning error
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* before calling fpga_mgr_register(), the struct will still get cleaned up.
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*
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* Return: pointer to struct fpga_manager or NULL
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*/
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struct fpga_manager *devm_fpga_mgr_create(struct device *dev, const char *name,
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const struct fpga_manager_ops *mops,
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void *priv)
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{
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struct fpga_manager **ptr, *mgr;
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ptr = devres_alloc(devm_fpga_mgr_release, sizeof(*ptr), GFP_KERNEL);
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if (!ptr)
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return NULL;
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mgr = fpga_mgr_create(dev, name, mops, priv);
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if (!mgr) {
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devres_free(ptr);
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} else {
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*ptr = mgr;
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devres_add(dev, ptr);
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}
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return mgr;
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}
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EXPORT_SYMBOL_GPL(devm_fpga_mgr_create);
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/**
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/**
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* fpga_mgr_register - register a FPGA manager
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* fpga_mgr_register - register a FPGA manager
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* @mgr: fpga manager struct created by fpga_mgr_create
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* @mgr: fpga manager struct
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*
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*
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* Return: 0 on success, negative error code otherwise.
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* Return: 0 on success, negative error code otherwise.
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*/
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*/
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@ -661,8 +710,10 @@ error_device:
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EXPORT_SYMBOL_GPL(fpga_mgr_register);
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EXPORT_SYMBOL_GPL(fpga_mgr_register);
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/**
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/**
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* fpga_mgr_unregister - unregister and free a FPGA manager
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* fpga_mgr_unregister - unregister a FPGA manager
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* @mgr: fpga manager struct
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* @mgr: fpga manager struct
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*
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* This function is intended for use in a FPGA manager driver's remove function.
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*/
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*/
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void fpga_mgr_unregister(struct fpga_manager *mgr)
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void fpga_mgr_unregister(struct fpga_manager *mgr)
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{
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{
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@ -681,9 +732,6 @@ EXPORT_SYMBOL_GPL(fpga_mgr_unregister);
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static void fpga_mgr_dev_release(struct device *dev)
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static void fpga_mgr_dev_release(struct device *dev)
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{
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{
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struct fpga_manager *mgr = to_fpga_manager(dev);
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fpga_mgr_free(mgr);
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}
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}
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static int __init fpga_mgr_class_init(void)
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static int __init fpga_mgr_class_init(void)
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@ -175,18 +175,14 @@ static int ice40_fpga_probe(struct spi_device *spi)
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return ret;
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return ret;
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}
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}
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mgr = fpga_mgr_create(dev, "Lattice iCE40 FPGA Manager",
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mgr = devm_fpga_mgr_create(dev, "Lattice iCE40 FPGA Manager",
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&ice40_fpga_ops, priv);
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&ice40_fpga_ops, priv);
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if (!mgr)
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if (!mgr)
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return -ENOMEM;
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return -ENOMEM;
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spi_set_drvdata(spi, mgr);
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spi_set_drvdata(spi, mgr);
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ret = fpga_mgr_register(mgr);
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return fpga_mgr_register(mgr);
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if (ret)
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fpga_mgr_free(mgr);
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return ret;
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}
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}
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static int ice40_fpga_remove(struct spi_device *spi)
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static int ice40_fpga_remove(struct spi_device *spi)
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@ -356,25 +356,20 @@ static int machxo2_spi_probe(struct spi_device *spi)
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{
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{
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struct device *dev = &spi->dev;
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struct device *dev = &spi->dev;
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struct fpga_manager *mgr;
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struct fpga_manager *mgr;
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int ret;
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if (spi->max_speed_hz > MACHXO2_MAX_SPEED) {
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if (spi->max_speed_hz > MACHXO2_MAX_SPEED) {
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dev_err(dev, "Speed is too high\n");
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dev_err(dev, "Speed is too high\n");
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return -EINVAL;
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return -EINVAL;
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}
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}
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mgr = fpga_mgr_create(dev, "Lattice MachXO2 SPI FPGA Manager",
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mgr = devm_fpga_mgr_create(dev, "Lattice MachXO2 SPI FPGA Manager",
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&machxo2_ops, spi);
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&machxo2_ops, spi);
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if (!mgr)
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if (!mgr)
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return -ENOMEM;
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return -ENOMEM;
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spi_set_drvdata(spi, mgr);
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spi_set_drvdata(spi, mgr);
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ret = fpga_mgr_register(mgr);
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return fpga_mgr_register(mgr);
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if (ret)
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fpga_mgr_free(mgr);
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return ret;
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}
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}
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static int machxo2_spi_remove(struct spi_device *spi)
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static int machxo2_spi_remove(struct spi_device *spi)
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@ -508,8 +508,8 @@ static int socfpga_a10_fpga_probe(struct platform_device *pdev)
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return -EBUSY;
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return -EBUSY;
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}
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}
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mgr = fpga_mgr_create(dev, "SoCFPGA Arria10 FPGA Manager",
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mgr = devm_fpga_mgr_create(dev, "SoCFPGA Arria10 FPGA Manager",
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&socfpga_a10_fpga_mgr_ops, priv);
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&socfpga_a10_fpga_mgr_ops, priv);
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if (!mgr)
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if (!mgr)
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return -ENOMEM;
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return -ENOMEM;
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@ -517,7 +517,6 @@ static int socfpga_a10_fpga_probe(struct platform_device *pdev)
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ret = fpga_mgr_register(mgr);
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ret = fpga_mgr_register(mgr);
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if (ret) {
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if (ret) {
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fpga_mgr_free(mgr);
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clk_disable_unprepare(priv->clk);
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clk_disable_unprepare(priv->clk);
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return ret;
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return ret;
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}
|
}
|
||||||
|
|
|
@ -571,18 +571,14 @@ static int socfpga_fpga_probe(struct platform_device *pdev)
|
||||||
if (ret)
|
if (ret)
|
||||||
return ret;
|
return ret;
|
||||||
|
|
||||||
mgr = fpga_mgr_create(dev, "Altera SOCFPGA FPGA Manager",
|
mgr = devm_fpga_mgr_create(dev, "Altera SOCFPGA FPGA Manager",
|
||||||
&socfpga_fpga_ops, priv);
|
&socfpga_fpga_ops, priv);
|
||||||
if (!mgr)
|
if (!mgr)
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
|
|
||||||
platform_set_drvdata(pdev, mgr);
|
platform_set_drvdata(pdev, mgr);
|
||||||
|
|
||||||
ret = fpga_mgr_register(mgr);
|
return fpga_mgr_register(mgr);
|
||||||
if (ret)
|
|
||||||
fpga_mgr_free(mgr);
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static int socfpga_fpga_remove(struct platform_device *pdev)
|
static int socfpga_fpga_remove(struct platform_device *pdev)
|
||||||
|
|
|
@ -118,7 +118,6 @@ static int ts73xx_fpga_probe(struct platform_device *pdev)
|
||||||
struct ts73xx_fpga_priv *priv;
|
struct ts73xx_fpga_priv *priv;
|
||||||
struct fpga_manager *mgr;
|
struct fpga_manager *mgr;
|
||||||
struct resource *res;
|
struct resource *res;
|
||||||
int ret;
|
|
||||||
|
|
||||||
priv = devm_kzalloc(kdev, sizeof(*priv), GFP_KERNEL);
|
priv = devm_kzalloc(kdev, sizeof(*priv), GFP_KERNEL);
|
||||||
if (!priv)
|
if (!priv)
|
||||||
|
@ -133,18 +132,14 @@ static int ts73xx_fpga_probe(struct platform_device *pdev)
|
||||||
return PTR_ERR(priv->io_base);
|
return PTR_ERR(priv->io_base);
|
||||||
}
|
}
|
||||||
|
|
||||||
mgr = fpga_mgr_create(kdev, "TS-73xx FPGA Manager",
|
mgr = devm_fpga_mgr_create(kdev, "TS-73xx FPGA Manager",
|
||||||
&ts73xx_fpga_ops, priv);
|
&ts73xx_fpga_ops, priv);
|
||||||
if (!mgr)
|
if (!mgr)
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
|
|
||||||
platform_set_drvdata(pdev, mgr);
|
platform_set_drvdata(pdev, mgr);
|
||||||
|
|
||||||
ret = fpga_mgr_register(mgr);
|
return fpga_mgr_register(mgr);
|
||||||
if (ret)
|
|
||||||
fpga_mgr_free(mgr);
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static int ts73xx_fpga_remove(struct platform_device *pdev)
|
static int ts73xx_fpga_remove(struct platform_device *pdev)
|
||||||
|
|
|
@ -144,7 +144,6 @@ static int xilinx_spi_probe(struct spi_device *spi)
|
||||||
{
|
{
|
||||||
struct xilinx_spi_conf *conf;
|
struct xilinx_spi_conf *conf;
|
||||||
struct fpga_manager *mgr;
|
struct fpga_manager *mgr;
|
||||||
int ret;
|
|
||||||
|
|
||||||
conf = devm_kzalloc(&spi->dev, sizeof(*conf), GFP_KERNEL);
|
conf = devm_kzalloc(&spi->dev, sizeof(*conf), GFP_KERNEL);
|
||||||
if (!conf)
|
if (!conf)
|
||||||
|
@ -167,18 +166,15 @@ static int xilinx_spi_probe(struct spi_device *spi)
|
||||||
return PTR_ERR(conf->done);
|
return PTR_ERR(conf->done);
|
||||||
}
|
}
|
||||||
|
|
||||||
mgr = fpga_mgr_create(&spi->dev, "Xilinx Slave Serial FPGA Manager",
|
mgr = devm_fpga_mgr_create(&spi->dev,
|
||||||
&xilinx_spi_ops, conf);
|
"Xilinx Slave Serial FPGA Manager",
|
||||||
|
&xilinx_spi_ops, conf);
|
||||||
if (!mgr)
|
if (!mgr)
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
|
|
||||||
spi_set_drvdata(spi, mgr);
|
spi_set_drvdata(spi, mgr);
|
||||||
|
|
||||||
ret = fpga_mgr_register(mgr);
|
return fpga_mgr_register(mgr);
|
||||||
if (ret)
|
|
||||||
fpga_mgr_free(mgr);
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static int xilinx_spi_remove(struct spi_device *spi)
|
static int xilinx_spi_remove(struct spi_device *spi)
|
||||||
|
|
|
@ -614,8 +614,8 @@ static int zynq_fpga_probe(struct platform_device *pdev)
|
||||||
|
|
||||||
clk_disable(priv->clk);
|
clk_disable(priv->clk);
|
||||||
|
|
||||||
mgr = fpga_mgr_create(dev, "Xilinx Zynq FPGA Manager",
|
mgr = devm_fpga_mgr_create(dev, "Xilinx Zynq FPGA Manager",
|
||||||
&zynq_fpga_ops, priv);
|
&zynq_fpga_ops, priv);
|
||||||
if (!mgr)
|
if (!mgr)
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
|
|
||||||
|
@ -624,7 +624,6 @@ static int zynq_fpga_probe(struct platform_device *pdev)
|
||||||
err = fpga_mgr_register(mgr);
|
err = fpga_mgr_register(mgr);
|
||||||
if (err) {
|
if (err) {
|
||||||
dev_err(dev, "unable to register FPGA manager\n");
|
dev_err(dev, "unable to register FPGA manager\n");
|
||||||
fpga_mgr_free(mgr);
|
|
||||||
clk_unprepare(priv->clk);
|
clk_unprepare(priv->clk);
|
||||||
return err;
|
return err;
|
||||||
}
|
}
|
||||||
|
|
|
@ -198,4 +198,8 @@ void fpga_mgr_free(struct fpga_manager *mgr);
|
||||||
int fpga_mgr_register(struct fpga_manager *mgr);
|
int fpga_mgr_register(struct fpga_manager *mgr);
|
||||||
void fpga_mgr_unregister(struct fpga_manager *mgr);
|
void fpga_mgr_unregister(struct fpga_manager *mgr);
|
||||||
|
|
||||||
|
struct fpga_manager *devm_fpga_mgr_create(struct device *dev, const char *name,
|
||||||
|
const struct fpga_manager_ops *mops,
|
||||||
|
void *priv);
|
||||||
|
|
||||||
#endif /*_LINUX_FPGA_MGR_H */
|
#endif /*_LINUX_FPGA_MGR_H */
|
||||||
|
|
Loading…
Reference in a new issue