1 files changed, 91 insertions, 0 deletions
diff --git a/drivers/media/platform/ti-vpe/sc.c b/drivers/media/platform/ti-vpe/sc.c
new file mode 100644
index 000000000000..f21dfbb77057
--- /dev/null
+++ b/drivers/media/platform/ti-vpe/sc.c
@@ -0,0 +1,91 @@
+/*
+ * Scaler 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 "sc.h"
+
+void sc_set_regs_bypass(struct sc_data *sc, u32 *sc_reg0)
+{
+	*sc_reg0 |= CFG_SC_BYPASS;
+}
+
+void sc_dump_regs(struct sc_data *sc)
+{
+	struct device *dev = &sc->pdev->dev;
+
+	u32 read_reg(struct sc_data *sc, int offset)
+	{
+		return ioread32(sc->base + offset);
+	}
+
+#define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, read_reg(sc, CFG_##r))
+
+	DUMPREG(SC0);
+	DUMPREG(SC1);
+	DUMPREG(SC2);
+	DUMPREG(SC3);
+	DUMPREG(SC4);
+	DUMPREG(SC5);
+	DUMPREG(SC6);
+	DUMPREG(SC8);
+	DUMPREG(SC9);
+	DUMPREG(SC10);
+	DUMPREG(SC11);
+	DUMPREG(SC12);
+	DUMPREG(SC13);
+	DUMPREG(SC17);
+	DUMPREG(SC18);
+	DUMPREG(SC19);
+	DUMPREG(SC20);
+	DUMPREG(SC21);
+	DUMPREG(SC22);
+	DUMPREG(SC23);
+	DUMPREG(SC24);
+	DUMPREG(SC25);
+
+#undef DUMPREG
+}
+
+struct sc_data *sc_create(struct platform_device *pdev)
+{
+	struct sc_data *sc;
+
+	dev_dbg(&pdev->dev, "sc_create\n");
+
+	sc = devm_kzalloc(&pdev->dev, sizeof(*sc), GFP_KERNEL);
+	if (!sc) {
+		dev_err(&pdev->dev, "couldn't alloc sc_data\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	sc->pdev = pdev;
+
+	sc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sc");
+	if (!sc->res) {
+		dev_err(&pdev->dev, "missing platform resources data\n");
+		return ERR_PTR(-ENODEV);
+	}
+
+	sc->base = devm_ioremap_resource(&pdev->dev, sc->res);
+	if (!sc->base) {
+		dev_err(&pdev->dev, "failed to ioremap\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	return sc;
+}