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/*
* Color space converter library
*
* Copyright (c) 2013 Texas Instruments Inc.
*
* David Griego, <dagriego@biglakesoftware.com>
* Dale Farnsworth, <dale@farnsworth.org>
* Archit Taneja, <archit@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/err.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include "csc.h"
void csc_dump_regs(struct csc_data *csc)
{
struct device *dev = &csc->pdev->dev;
u32 read_reg(struct csc_data *csc, int offset)
{
return ioread32(csc->base + offset);
}
#define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, read_reg(csc, CSC_##r))
DUMPREG(CSC00);
DUMPREG(CSC01);
DUMPREG(CSC02);
DUMPREG(CSC03);
DUMPREG(CSC04);
DUMPREG(CSC05);
#undef DUMPREG
}
void csc_set_coeff_bypass(struct csc_data *csc, u32 *csc_reg5)
{
*csc_reg5 |= CSC_BYPASS;
}
struct csc_data *csc_create(struct platform_device *pdev)
{
struct csc_data *csc;
dev_dbg(&pdev->dev, "csc_create\n");
csc = devm_kzalloc(&pdev->dev, sizeof(*csc), GFP_KERNEL);
if (!csc) {
dev_err(&pdev->dev, "couldn't alloc csc_data\n");
return ERR_PTR(-ENOMEM);
}
csc->pdev = pdev;
csc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"vpe_csc");
if (csc->res == NULL) {
dev_err(&pdev->dev, "missing platform resources data\n");
return ERR_PTR(-ENODEV);
}
csc->base = devm_ioremap_resource(&pdev->dev, csc->res);
if (!csc->base) {
dev_err(&pdev->dev, "failed to ioremap\n");
return ERR_PTR(-ENOMEM);
}
return csc;
}
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