drivers/lcd: support of controller variant parameter

If the controller-specific driver supports multiple controller variants, the variant has to be specified in the configuration parameter set.

drivers/include/lcd.h

@@ -30,7 +30,6 @@
  * transfer.
  */
 
-
 #ifndef LCD_H
 #define LCD_H
 
@@ -86,6 +85,11 @@ typedef  struct {
     uint8_t rotation;           /**< Display rotation mode */
     uint8_t offset_x;           /**< LCD offset to apply on x axis. */
     uint8_t offset_y;           /**< LCD offset to apply on y axis. */
+#if MODULE_LCD_MULTI_CNTRL || DOXYGEN
+    uint8_t cntrl;              /**< controller variant used, if the controller-
+                                     specific driver supports multiple
+                                     controller variants */
+#endif
 } lcd_params_t;
 
 /**

drivers/lcd/Kconfig

@@ -13,6 +13,11 @@ config MODULE_LCD
     select MODULE_PERIPH_SPI
     select MODULE_PERIPH_GPIO
 
+config MODULE_LCD_MULTI_CNTRL
+    bool
+    help
+        The controller-specific driver supports multiple controller variants.
+
 menuconfig KCONFIG_USEMODULE_LCD
     bool "Configure LCD driver"
     depends on USEMODULE_LCD

drivers/lcd/Makefile.include

@@ -1,2 +1,4 @@
+PSEUDOMODULES += lcd_multi_cntrl
+
 USEMODULE_INCLUDES_lcd := $(LAST_MAKEFILEDIR)/include
 USEMODULE_INCLUDES += $(USEMODULE_INCLUDES_lcd)