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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/spi/spi-dw-mmio.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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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.c142
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");