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tegra: Provide a function to allow LCD PMIC setup

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Some LCDs require a PMIC to be set up - add a function for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Simon Glass 2015-04-14 21:03:27 -06:00 committed by Tom Warren
parent d55b7d4c53
commit 8277636420
2 changed files with 18 additions and 0 deletions
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8
arch/arm/include/asm/arch-tegra/sys_proto.h
View file

@ -17,4 +17,12 @@ void invalidate_dcache(void);
*/
int tegra_board_id(void);
/**
* tegra_lcd_pmic_init() - Set up the PMIC for a board
*
* @board_id: Board ID which may be used to select LCD type
* @return 0 if OK, -ve on error
*/
int tegra_lcd_pmic_init(int board_id);
#endif

10
board/nvidia/common/board.c
View file

@ -100,6 +100,11 @@ int checkboard(void)
}
#endif /* CONFIG_DISPLAY_BOARDINFO */
__weak int tegra_lcd_pmic_init(int board_it)
{
return 0;
}
/*
* Routine: board_init
* Description: Early hardware init.
@ -107,6 +112,7 @@ int checkboard(void)
int board_init(void)
{
__maybe_unused int err;
__maybe_unused int board_id;
/* Do clocks and UART first so that printf() works */
clock_init();
@ -147,6 +153,10 @@ int board_init(void)
#endif
#ifdef CONFIG_LCD
board_id = tegra_board_id();
err = tegra_lcd_pmic_init(board_id);
if (err)
return err;
tegra_lcd_check_next_stage(gd->fdt_blob, 0);
#endif