[ARM] pxa: fix naming of memory/lcd/core clock functions

Rename pxa25x and pxa27x memory/lcd/core clock functions, and
select the correct version at run time.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-pxa/generic.c

@@ -42,6 +42,44 @@
 #include "devices.h"
 #include "generic.h"
 
+/*
+ * Get the clock frequency as reflected by CCCR and the turbo flag.
+ * We assume these values have been applied via a fcs.
+ * If info is not 0 we also display the current settings.
+ */
+unsigned int get_clk_frequency_khz(int info)
+{
+	if (cpu_is_pxa21x() || cpu_is_pxa25x())
+		return pxa25x_get_clk_frequency_khz(info);
+	else
+		return pxa27x_get_clk_frequency_khz(info);
+}
+EXPORT_SYMBOL(get_clk_frequency_khz);
+
+/*
+ * Return the current memory clock frequency in units of 10kHz
+ */
+unsigned int get_memclk_frequency_10khz(void)
+{
+	if (cpu_is_pxa21x() || cpu_is_pxa25x())
+		return pxa25x_get_memclk_frequency_10khz();
+	else
+		return pxa27x_get_memclk_frequency_10khz();
+}
+EXPORT_SYMBOL(get_memclk_frequency_10khz);
+
+/*
+ * Return the current LCD clock frequency in units of 10kHz
+ */
+unsigned int get_lcdclk_frequency_10khz(void)
+{
+	if (cpu_is_pxa21x() || cpu_is_pxa25x())
+		return pxa25x_get_memclk_frequency_10khz();
+	else
+		return pxa27x_get_lcdclk_frequency_10khz();
+}
+EXPORT_SYMBOL(get_lcdclk_frequency_10khz);
+
 /*
  * Handy function to set GPIO alternate functions
  */

arch/arm/mach-pxa/generic.h

@@ -26,3 +26,21 @@ extern unsigned int get_clk_frequency_khz(int info);
 	mi->bank[__nr].size = (__size), \
 	mi->bank[__nr].node = (((unsigned)(__start) - PHYS_OFFSET) >> 27)
 
+#ifdef CONFIG_PXA25x
+extern unsigned pxa25x_get_clk_frequency_khz(int);
+extern unsigned pxa25x_get_memclk_frequency_10khz(void);
+#else
+#define pxa25x_get_clk_frequency_khz(x)		(0)
+#define pxa25x_get_memclk_frequency_10khz()	(0)
+#endif
+
+#ifdef CONFIG_PXA27x
+extern unsigned pxa27x_get_clk_frequency_khz(int);
+extern unsigned pxa27x_get_memclk_frequency_10khz(void);
+extern unsigned pxa27x_get_lcdclk_frequency_10khz(void);
+#else
+#define pxa27x_get_clk_frequency_khz(x)		(0)
+#define pxa27x_get_memclk_frequency_10khz()	(0)
+#define pxa27x_get_lcdclk_frequency_10khz()	(0)
+#endif
+

arch/arm/mach-pxa/pxa25x.c

@@ -53,7 +53,7 @@ static unsigned char N2_clk_mult[8] = { 0, 0, 2, 3, 4, 0, 6, 0 };
  * We assume these values have been applied via a fcs.
  * If info is not 0 we also display the current settings.
  */
-unsigned int get_clk_frequency_khz(int info)
+unsigned int pxa25x_get_clk_frequency_khz(int info)
 {
 	unsigned long cccr, turbo;
 	unsigned int l, L, m, M, n2, N;
@@ -86,28 +86,14 @@ unsigned int get_clk_frequency_khz(int info)
 	return (turbo & 1) ? (N/1000) : (M/1000);
 }
 
-EXPORT_SYMBOL(get_clk_frequency_khz);
-
 /*
  * Return the current memory clock frequency in units of 10kHz
  */
-unsigned int get_memclk_frequency_10khz(void)
+unsigned int pxa25x_get_memclk_frequency_10khz(void)
 {
 	return L_clk_mult[(CCCR >> 0) & 0x1f] * BASE_CLK / 10000;
 }
 
-EXPORT_SYMBOL(get_memclk_frequency_10khz);
-
-/*
- * Return the current LCD clock frequency in units of 10kHz
- */
-unsigned int get_lcdclk_frequency_10khz(void)
-{
-	return get_memclk_frequency_10khz();
-}
-
-EXPORT_SYMBOL(get_lcdclk_frequency_10khz);
-
 #ifdef CONFIG_PM
 
 #define SAVE(x)		sleep_save[SLEEP_SAVE_##x] = x

arch/arm/mach-pxa/pxa27x.c

@@ -36,7 +36,7 @@
  * We assume these values have been applied via a fcs.
  * If info is not 0 we also display the current settings.
  */
-unsigned int get_clk_frequency_khz( int info)
+unsigned int pxa27x_get_clk_frequency_khz(int info)
 {
 	unsigned long ccsr, clkcfg;
 	unsigned int l, L, m, M, n2, N, S;
@@ -79,7 +79,7 @@ unsigned int get_clk_frequency_khz( int info)
  * Return the current mem clock frequency in units of 10kHz as
  * reflected by CCCR[A], B, and L
  */
-unsigned int get_memclk_frequency_10khz(void)
+unsigned int pxa27x_get_memclk_frequency_10khz(void)
 {
 	unsigned long ccsr, clkcfg;
 	unsigned int l, L, m, M;
@@ -104,7 +104,7 @@ unsigned int get_memclk_frequency_10khz(void)
 /*
  * Return the current LCD clock frequency in units of 10kHz as
  */
-unsigned int get_lcdclk_frequency_10khz(void)
+unsigned int pxa27x_get_lcdclk_frequency_10khz(void)
 {
 	unsigned long ccsr;
 	unsigned int l, L, k, K;
@@ -120,10 +120,6 @@ unsigned int get_lcdclk_frequency_10khz(void)
 	return (K / 10000);
 }
 
-EXPORT_SYMBOL(get_clk_frequency_khz);
-EXPORT_SYMBOL(get_memclk_frequency_10khz);
-EXPORT_SYMBOL(get_lcdclk_frequency_10khz);
-
 #ifdef CONFIG_PM
 
 #define SAVE(x)		sleep_save[SLEEP_SAVE_##x] = x