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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/spi/spi-dw-mmio.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/spi/spi-dw-mmio.c')
-rw-r--r-- | ANDROID_3.4.5/drivers/spi/spi-dw-mmio.c | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/ANDROID_3.4.5/drivers/spi/spi-dw-mmio.c b/ANDROID_3.4.5/drivers/spi/spi-dw-mmio.c deleted file mode 100644 index db2f1ba0..00000000 --- a/ANDROID_3.4.5/drivers/spi/spi-dw-mmio.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - * Memory-mapped interface driver for DW SPI Core - * - * Copyright (c) 2010, Octasic semiconductor. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - */ - -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/spi/spi.h> -#include <linux/scatterlist.h> -#include <linux/module.h> - -#include "spi-dw.h" - -#define DRIVER_NAME "dw_spi_mmio" - -struct dw_spi_mmio { - struct dw_spi dws; - struct clk *clk; -}; - -static int __devinit dw_spi_mmio_probe(struct platform_device *pdev) -{ - struct dw_spi_mmio *dwsmmio; - struct dw_spi *dws; - struct resource *mem, *ioarea; - int ret; - - dwsmmio = kzalloc(sizeof(struct dw_spi_mmio), GFP_KERNEL); - if (!dwsmmio) { - ret = -ENOMEM; - goto err_end; - } - - dws = &dwsmmio->dws; - - /* Get basic io resource and map it */ - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem) { - dev_err(&pdev->dev, "no mem resource?\n"); - ret = -EINVAL; - goto err_kfree; - } - - ioarea = request_mem_region(mem->start, resource_size(mem), - pdev->name); - if (!ioarea) { - dev_err(&pdev->dev, "SPI region already claimed\n"); - ret = -EBUSY; - goto err_kfree; - } - - dws->regs = ioremap_nocache(mem->start, resource_size(mem)); - if (!dws->regs) { - dev_err(&pdev->dev, "SPI region already mapped\n"); - ret = -ENOMEM; - goto err_release_reg; - } - - dws->irq = platform_get_irq(pdev, 0); - if (dws->irq < 0) { - dev_err(&pdev->dev, "no irq resource?\n"); - ret = dws->irq; /* -ENXIO */ - goto err_unmap; - } - - dwsmmio->clk = clk_get(&pdev->dev, NULL); - if (IS_ERR(dwsmmio->clk)) { - ret = PTR_ERR(dwsmmio->clk); - goto err_irq; - } - clk_enable(dwsmmio->clk); - - dws->parent_dev = &pdev->dev; - dws->bus_num = 0; - dws->num_cs = 4; - dws->max_freq = clk_get_rate(dwsmmio->clk); - - ret = dw_spi_add_host(dws); - if (ret) - goto err_clk; - - platform_set_drvdata(pdev, dwsmmio); - return 0; - -err_clk: - clk_disable(dwsmmio->clk); - clk_put(dwsmmio->clk); - dwsmmio->clk = NULL; -err_irq: - free_irq(dws->irq, dws); -err_unmap: - iounmap(dws->regs); -err_release_reg: - release_mem_region(mem->start, resource_size(mem)); -err_kfree: - kfree(dwsmmio); -err_end: - return ret; -} - -static int __devexit dw_spi_mmio_remove(struct platform_device *pdev) -{ - struct dw_spi_mmio *dwsmmio = platform_get_drvdata(pdev); - struct resource *mem; - - platform_set_drvdata(pdev, NULL); - - clk_disable(dwsmmio->clk); - clk_put(dwsmmio->clk); - dwsmmio->clk = NULL; - - free_irq(dwsmmio->dws.irq, &dwsmmio->dws); - dw_spi_remove_host(&dwsmmio->dws); - iounmap(dwsmmio->dws.regs); - kfree(dwsmmio); - - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(mem->start, resource_size(mem)); - return 0; -} - -static struct platform_driver dw_spi_mmio_driver = { - .probe = dw_spi_mmio_probe, - .remove = __devexit_p(dw_spi_mmio_remove), - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - }, -}; -module_platform_driver(dw_spi_mmio_driver); - -MODULE_AUTHOR("Jean-Hugues Deschenes <jean-hugues.deschenes@octasic.com>"); -MODULE_DESCRIPTION("Memory-mapped I/O interface driver for DW SPI Core"); -MODULE_LICENSE("GPL v2"); |