drv/i2c/ptn3460: Use PTN_EDID_LEN instead of constant

Contents of the EDID are passed by a reference to an array
of length 0x80, for which the macro 'PTN_EDID_LEN' has already
been around.

This patch makes use of this macro within the driver and mainboard
implementation utilizing it.

BUG=none
TEST=A successful build of mc_apl{1,4,5,7} and mc_ehl3 mainboards.

Change-Id: If7d254aaf45d717133bb426bd08f8f9fe5c05962
Signed-off-by: Jan Samek <jan.samek@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72653
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>

src/drivers/i2c/ptn3460/ptn3460.c

@@ -123,7 +123,7 @@ static void ptn3460_init(struct device *dev)
 	init_done = true;
 }
 
-__weak enum cb_err mb_get_edid(uint8_t edid_data[0x80])
+__weak enum cb_err mb_get_edid(uint8_t edid_data[PTN_EDID_LEN])
 {
 	return CB_ERR;
 }

src/drivers/i2c/ptn3460/ptn3460.h

@@ -52,7 +52,7 @@ struct ptn_3460_flash {
 
 /* We need functions which we can call to get mainboard specific data */
 /* These functions can be implemented somewhere else but must exist. */
-extern enum cb_err mb_get_edid(uint8_t edid_data[0x80]);
+extern enum cb_err mb_get_edid(uint8_t edid_data[PTN_EDID_LEN]);
 extern uint8_t mb_select_edid_table(void);
 extern enum cb_err mb_adjust_cfg(struct ptn_3460_config *cfg_ptr);
 

src/mainboard/siemens/mc_apl1/variants/mc_apl1/lcd_panel.c

@@ -10,7 +10,7 @@
  * @param  edid_data  pointer to EDID data in driver
  * @return CB_SUCCESS on successful EDID data retrieval, CB_ERR otherwise
  */
-enum cb_err mb_get_edid(uint8_t edid_data[0x80])
+enum cb_err mb_get_edid(uint8_t edid_data[PTN_EDID_LEN])
 {
 	const char *hwi_block = "hwinfo.hex";
 

src/mainboard/siemens/mc_apl1/variants/mc_apl4/lcd_panel.c

@@ -10,7 +10,7 @@
  * @param  edid_data  pointer to EDID data in driver
  * @return CB_SUCCESS on successful EDID data retrieval, CB_ERR otherwise
  */
-enum cb_err mb_get_edid(uint8_t edid_data[0x80])
+enum cb_err mb_get_edid(uint8_t edid_data[PTN_EDID_LEN])
 {
 	const char *hwi_block = "hwinfo.hex";
 

src/mainboard/siemens/mc_apl1/variants/mc_apl5/lcd_panel.c

@@ -33,7 +33,7 @@ static void igd_disable(void)
  * @param  edid_data  pointer to EDID data in driver
  * @return CB_SUCCESS on successful EDID data retrieval, CB_ERR otherwise
  */
-enum cb_err mb_get_edid(uint8_t edid_data[0x80])
+enum cb_err mb_get_edid(uint8_t edid_data[PTN_EDID_LEN])
 {
 	const char *hwi_block = "hwinfo.hex";
 

src/mainboard/siemens/mc_apl1/variants/mc_apl7/lcd_panel.c

@@ -10,7 +10,7 @@
  * @param  edid_data  pointer to EDID data in driver
  * @return CB_SUCCESS on successful EDID data retrieval, CB_ERR otherwise
  */
-enum cb_err mb_get_edid(uint8_t edid_data[0x80])
+enum cb_err mb_get_edid(uint8_t edid_data[PTN_EDID_LEN])
 {
 	const char *hwi_block = "hwinfo.hex";
 

src/mainboard/siemens/mc_ehl/variants/mc_ehl3/lcd_panel.c

@@ -10,7 +10,7 @@
  * @param  edid_data  pointer to EDID data in driver
  * @return CB_SUCCESS on successful EDID data retrieval, CB_ERR otherwise
  */
-enum cb_err mb_get_edid(uint8_t edid_data[0x80])
+enum cb_err mb_get_edid(uint8_t edid_data[PTN_EDID_LEN])
 {
 	const char *hwi_block = "hwinfo.hex";