kernel/git/stable/linux.git/drivers/misc/panel.c, branch master

auxdisplay: Move panel.c to drivers/auxdisplay folder

2017-04-08T15:48:20+00:00

It looks like panel.c belongs to auxdisplay subsystem. Move it to drivers/auxdisplay folder. No functional changes intended. Acked-by: Geert Uytterhoeven Signed-off-by: Andy Shevchenko Signed-off-by: Greg Kroah-Hartman

auxdisplay: charlcd: Extract character LCD core from misc/panel

2017-03-17T06:10:49+00:00

Extract the character LCD core from the Parallel port LCD/Keypad Panel driver in the misc subsystem, and convert it into a subdriver in the auxdisplay subsystem. This allows the character LCD core to be used by other drivers later. Compilation is controlled by its own Kconfig symbol CHARLCD, which is to be selected by its users, but can be enabled manually for compile-testing. All functions changed their prefix from "lcd_" to "charlcd_", and gained a "struct charlcd *" parameter to operate on a specific instance. While the driver API thus is ready to support multiple instances, the current limitation of a single display (/dev/lcd has a single misc minor assigned) is retained. No functional changes intended. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

misc: panel: Abstract temporary backlight handling

2017-02-10T14:34:02+00:00

Currently the periodic scan timer is used for three purposes, entangling keypad and display handling, which are both optional: 1. Scanning the keypad, 2. Flashing the backlight when a key is pressed, 3. Disabling temporary backlighting after a fixed period of time. Abstract the second purpose using a new lcd_poke() function. Make the non-periodic temporary backlight handling independent from keypad handling by converting it to a delayed workqueue. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

misc: panel: Add lcd_home() helper

2017-02-10T14:32:53+00:00

Add a helper function to move the cursor to the home position, so callers no longer need access to internal state. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

misc: panel: Remove always-true check from panel_detach()

2017-02-10T14:32:53+00:00

panel_detach() already verified that pptr is a valid pointer. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

misc: panel: Remove unused LCD_FLAG_S and LCD_FLAG_ID

2017-02-10T14:32:53+00:00

These definitions were never used in any publicly available version since (at least) 2004. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

misc: panel: Remove PANEL_VERSION

2017-02-10T14:32:53+00:00

Hardcoded driver versions are so pre-git. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

misc: panel: Fix LCD_FLAG_F/LCD_FLAG_N exchange

2017-02-10T14:32:53+00:00

LCD_FLAG_F is the font flag, LCD_FLAG_N is the two-lines flag. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

misc: panel, convert struct to bitmap

2016-02-12T03:24:23+00:00

There is an anonymous struct which is actually used as a bitmap. So convert the struct to a bitmap and change code accordingly where needed. This also allows for a cleanup of set_data_bits and set_ctrl_bits as they can use a common helper now. The helper can also be converted to a for loop instead of doing bit OR. And given it is a for loop now, bit masking (using BIT_MSK) is moved from the callers there too. Signed-off-by: Daniel Chromik Signed-off-by: Jiri Slaby Cc: Ksenija Stanojevic Acked-by: Willy Tarreau Signed-off-by: Greg Kroah-Hartman

misc: Move panel driver out of staging

2016-02-03T22:14:22+00:00

Move panel driver from drivers/staging/panel to drivers/misc. Signed-off-by: Ksenija Stanojevic Acked-by: Willy Tarreau Signed-off-by: Greg Kroah-Hartman