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dm: backlight: Add a backlight uclass

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LCD panels normally have a backlight which can be controlled to illuminate
the LCD contents. Add a uclass to support this. Initially it only has a
method to enable the backlight.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2016-01-21 19:44:56 -07:00
parent 0e23fd81a5
commit 363bf77acc
4 changed files with 58 additions and 0 deletions
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include/dm/uclass-id.h
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@@ -45,6 +45,7 @@ enum uclass_id {
UCLASS_MMC, /* SD / MMC card or chip */
UCLASS_MOD_EXP, /* RSA Mod Exp device */
UCLASS_MTD, /* Memory Technology Device (MTD) device */
UCLASS_PANEL_BACKLIGHT, /* Backlight controller for panel */
UCLASS_PCH, /* x86 platform controller hub */
UCLASS_PCI, /* PCI bus */
UCLASS_PCI_GENERIC, /* Generic PCI bus device */