gxfb: create DC/VP/FP-specific handlers rather than using readl/writel

This creates read_dc/write_dc, read_vp/write_vp, and read_fp/write_fp for
reading and updating those registers.  It creates gxfb.h to house these.

We also drop a no-op readl() from gx_set_mode.  Other than that, there should
be no functionality change.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 47 insertions, 0 deletions

diff --git a/drivers/video/geode/gxfb.h b/drivers/video/geode/gxfb.h
new file mode 100644
index 0000000..42fa10d
--- /dev/null
+++ b/drivers/video/geode/gxfb.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2008 Andres Salomon <dilinger@debian.org>
+ *
+ * Geode GX2 register tables
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef _GXFB_H_
+#define _GXFB_H_
+
+#include <linux/io.h>
+
+static inline uint32_t read_dc(struct geodefb_par *par, int reg)
+{
+	return readl(par->dc_regs + reg);
+}
+
+static inline void write_dc(struct geodefb_par *par, int reg, uint32_t val)
+{
+	writel(val, par->dc_regs + reg);
+
+}
+
+static inline uint32_t read_vp(struct geodefb_par *par, int reg)
+{
+	return readl(par->vid_regs + reg);
+}
+
+static inline void write_vp(struct geodefb_par *par, int reg, uint32_t val)
+{
+	writel(val, par->vid_regs + reg);
+}
+
+static inline uint32_t read_fp(struct geodefb_par *par, int reg)
+{
+	return readl(par->vid_regs + reg);
+}
+
+static inline void write_fp(struct geodefb_par *par, int reg, uint32_t val)
+{
+	writel(val, par->vid_regs + reg);
+}
+
+#endif