On Thu, Jun 01, 2023 at 08:45:33AM +0300, Nikita Shubin wrote:

- get keymap from the device tree
- find register range from the device tree
- get interrupts from device tree

...

+/* flags for the ep93xx_keypad driver */
+#define EP93XX_KEYPAD_DISABLE_3_KEY	(1<<0)	/* disable 3-key reset */
+#define EP93XX_KEYPAD_DIAG_MODE		(1<<1)	/* diagnostic mode */
+#define EP93XX_KEYPAD_BACK_DRIVE	(1<<2)	/* back driving mode */
+#define EP93XX_KEYPAD_TEST_MODE		(1<<3)	/* scan only column 0 */
+#define EP93XX_KEYPAD_AUTOREPEAT	(1<<4)	/* enable key autorepeat */

+static int ep93xx_keypad_flags;
+module_param(ep93xx_keypad_flags, int, 0);
+MODULE_PARM_DESC(ep93xx_keypad_flags, "EP93XX keypad flags.");

Why? This pretty much looks like missing DT description.

Please, write your commit message better, so we can understand the point of
such decisions w/o asking.

-- 
With Best Regards,
Andy Shevchenko