From ae2264d3c9a4938b1202c4301587c7214c2c4293 Mon Sep 17 00:00:00 2001
From: Jon Smirl <jonsmirl@yahoo.com>
Date: Sun, 19 Jun 2005 04:15:58 +0000
Subject: Remove I2C support from radeon driver. Same support is available from
     radeonfb.

---
 linux-core/radeon_i2c.c | 155 ------------------------------------------------
 1 file changed, 155 deletions(-)
 delete mode 100644 linux-core/radeon_i2c.c

(limited to 'linux-core/radeon_i2c.c')

diff --git a/linux-core/radeon_i2c.c b/linux-core/radeon_i2c.c
deleted file mode 100644
index e19ea186..00000000
--- a/linux-core/radeon_i2c.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * linux/radeon_i2c.c
- *
- * Original author probably Benjamin Herrenschmidt <benh@kernel.crashing.org>
- * or Kronos <kronos@kronoz.cjb.net>
- * Based on Xfree sources
- * (C) Copyright 2004 Jon Smirl <jonsmirl@gmail.com>
- *
- * This is a GPL licensed file from the Linux kernel, don't add it to the BSD build
- *
- * Radeon I2C support routines
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/fb.h>
-#include <linux/version.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-
-#include <asm/io.h>
-#include <video/radeon.h>
-
-#include "drmP.h"
-#include "drm.h"
-#include "radeon_drm.h"
-#include "radeon_drv.h"
-
-static void gpio_setscl(void *data, int state)
-{
-	struct radeon_i2c_chan *chan = data;
-	drm_radeon_private_t *dev_priv = chan->dev->dev_private;
-	u32 val;
-
-	val = RADEON_READ(chan->ddc_reg) & ~(VGA_DDC_CLK_OUT_EN);
-	if (!state)
-		val |= VGA_DDC_CLK_OUT_EN;
-
-	RADEON_WRITE(chan->ddc_reg, val);
-	(void)RADEON_READ(chan->ddc_reg);
-}
-
-static void gpio_setsda(void *data, int state)
-{
-	struct radeon_i2c_chan *chan = data;
-	drm_radeon_private_t *dev_priv = chan->dev->dev_private;
-	u32 val;
-
-	val = RADEON_READ(chan->ddc_reg) & ~(VGA_DDC_DATA_OUT_EN);
-	if (!state)
-		val |= VGA_DDC_DATA_OUT_EN;
-
-	RADEON_WRITE(chan->ddc_reg, val);
-	(void)RADEON_READ(chan->ddc_reg);
-}
-
-static int gpio_getscl(void *data)
-{
-	struct radeon_i2c_chan *chan = data;
-	drm_radeon_private_t *dev_priv = chan->dev->dev_private;
-	u32 val;
-
-	val = RADEON_READ(chan->ddc_reg);
-
-	return (val & VGA_DDC_CLK_INPUT) ? 1 : 0;
-}
-
-static int gpio_getsda(void *data)
-{
-	struct radeon_i2c_chan *chan = data;
-	drm_radeon_private_t *dev_priv = chan->dev->dev_private;
-	u32 val;
-
-	val = RADEON_READ(chan->ddc_reg);
-
-	return (val & VGA_DDC_DATA_INPUT) ? 1 : 0;
-}
-
-static int setup_i2c_bus(drm_device_t * dev, struct radeon_i2c_chan *chan, const char *name)
-{
-	int rc;
-
-	chan->dev = dev;
-	strcpy(chan->adapter.name, name);
-	chan->adapter.owner		= THIS_MODULE;
-	chan->adapter.id		= I2C_ALGO_ATI;
-	chan->adapter.algo_data		= &chan->algo;
-	chan->adapter.dev.parent	= &chan->dev->pdev->dev;
-	chan->algo.setsda		= gpio_setsda;
-	chan->algo.setscl		= gpio_setscl;
-	chan->algo.getsda		= gpio_getsda;
-	chan->algo.getscl		= gpio_getscl;
-	chan->algo.udelay		= 40;
-	chan->algo.timeout		= 20;
-	chan->algo.data 		= chan;
-
-	i2c_set_adapdata(&chan->adapter, chan);
-
-	/* Raise SCL and SDA */
-	gpio_setsda(chan, 1);
-	gpio_setscl(chan, 1);
-	udelay(20);
-
-	if ((rc = i2c_bit_add_bus(&chan->adapter))) {
-		i2c_set_adapdata(&chan->adapter, NULL);
-		chan->dev = NULL;
-		DRM_ERROR("Failed to register I2C bus %s.\n", name);
-		return rc;
-	}
-	DRM_DEBUG("I2C bus %s registered.\n", name);
-	return 0;
-}
-
-int radeon_create_i2c_busses(drm_device_t * dev)
-{
-	drm_radeon_private_t *dev_priv = dev->dev_private;
-
-	dev_priv->i2c[0].ddc_reg = GPIO_MONID;
-	/* Don't return the error from setup. It is not fatal */
-	/* if the bus can not be initialized */
-	setup_i2c_bus(dev, &dev_priv->i2c[0], "monid");
-
-	dev_priv->i2c[1].ddc_reg = GPIO_DVI_DDC;
-	setup_i2c_bus(dev, &dev_priv->i2c[1], "dvi");
-
-	dev_priv->i2c[2].ddc_reg = GPIO_VGA_DDC;
-	setup_i2c_bus(dev, &dev_priv->i2c[2], "vga");
-
-	dev_priv->i2c[3].ddc_reg = GPIO_CRT2_DDC;
-	setup_i2c_bus(dev, &dev_priv->i2c[3], "crt2");
-
-	request_module("eeprom");
-
-	return 0;
-}
-
-void radeon_delete_i2c_busses(drm_device_t * dev)
-{
-	drm_radeon_private_t *dev_priv = dev->dev_private;
-	int i, ret;
-
-	for (i = 0; i < 4; i++) {
-		if (dev_priv->i2c[i].dev) {
-			ret = i2c_bit_del_bus(&dev_priv->i2c[i].adapter);
-			dev_priv->i2c[i].dev = NULL;
-		}
-	}
-}
-
-#endif
-- 
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