lcd: atmel: move atmel-specific fb_put_word to atmel_lcdfb

Reduce the amount of platform-specific code in common/lcd.c by moving Atmel
implementation of fb_put_word() to atmel_lcdfb.c. Since we must also have a
default implementation for everybody else, make the remainder of the code
into a weak function.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Bo Shen <voice.shen@atmel.com>
Tested-by: Bo Shen <voice.shen@atmel.com>
Tested-by: Josh Wu <josh.wu@atmel.com>
Cc: Bo Shen <voice.shen@atmel.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Anatolij Gustschin <agust@denx.de>

common/lcd.c

@@ -642,20 +642,11 @@ static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
 #endif
 
 #if defined(CONFIG_BMP_16BPP)
-#if defined(CONFIG_ATMEL_LCD_BGR555)
-static inline void fb_put_word(uchar **fb, uchar **from)
-{
-	*(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
-	*(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
-	*from += 2;
-}
-#else
-static inline void fb_put_word(uchar **fb, uchar **from)
+__weak void fb_put_word(uchar **fb, uchar **from)
 {
 	*(*fb)++ = *(*from)++;
 	*(*fb)++ = *(*from)++;
 }
-#endif
 #endif /* CONFIG_BMP_16BPP */
 
 int lcd_display_bitmap(ulong bmp_image, int x, int y)

drivers/video/atmel_lcdfb.c

@@ -34,6 +34,15 @@ ushort *configuration_get_cmap(void)
 	return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
 }
 
+#if defined(CONFIG_BMP_16BPP) && defined(CONFIG_ATMEL_LCD_BGR555)
+void fb_put_word(uchar **fb, uchar **from)
+{
+	*(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
+	*(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
+	*from += 2;
+}
+#endif
+
 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
 {
 #if defined(CONFIG_ATMEL_LCD_BGR555)