SSD1289 fix

drivers/gdisp/SSD1289/gdisp_lld.c

@@ -368,7 +368,7 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
 	 * @note    Optional.
 	 * @note    If x,y is off the screen, the result is undefined.
 	 *
-	 * @param[in] x, y     The start of the text
+	 * @param[in] x, y     The pixel to be read
 	 *
 	 * @notapi
 	 */
@@ -386,6 +386,7 @@ void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
 		color = read_data();
 		stream_stop();
 		release_bus();
+
 		return color;
 	}
 #endif

drivers/gdisp/SSD1289/gdisp_lld_board_firebullstm32f103.h

@@ -139,16 +139,16 @@ static __inline uint16_t read_data(void) {
 	uint16_t	value;
 	
 	// change pin mode to digital input
-	GDISP_DATA_PORT->CRH = 0x44444444;
-	GDISP_DATA_PORT->CRL = 0x44444444;
+	palSetGroupMode(GDISP_DATA_PORT, PAL_WHOLE_PORT, 0, PAL_MODE_INPUT);
 
 	CLR_RD;
 	value = palReadPort(GDISP_DATA_PORT);
+	value = palReadPort(GDISP_DATA_PORT);
 	SET_RD;
 
 	// change pin mode back to digital output
-	GDISP_DATA_PORT->CRH = 0x33333333;
-	GDISP_DATA_PORT->CRL = 0x33333333;
+	palSetGroupMode(GDISP_DATA_PORT, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL);
+	
 	return value;
 }
 #endif