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drivers/video: use strings to specify the Freescale DIU monitor port

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Instead of using ill-defined numbers (0, 1, and 2) for the monitor port, allow
the user to specify the port by name ("dvi", "lvds", or "dlvds").  This works
on the kernel command line, the module command-line, and the sysfs "monitor"
device.

Note that changing the monitor port does not currently work on the P1022DS,
because the code that talks to the PIXIS FPGA is broken.

Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Timur Tabi
2011-07-09 15:38:14 -05:00
committed by Paul Mundt
parent c6daf05b6d
commit 7653aaab77
5 changed files with 128 additions and 95 deletions
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25
arch/powerpc/sysdev/fsl_soc.h
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@@ -22,15 +22,24 @@ struct device_node;
extern void fsl_rstcr_restart(char *cmd);
#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
/* The different ports that the DIU can be connected to */
enum fsl_diu_monitor_port {
FSL_DIU_PORT_DVI, /* DVI */
FSL_DIU_PORT_LVDS, /* Single-link LVDS */
FSL_DIU_PORT_DLVDS /* Dual-link LVDS */
};
struct platform_diu_data_ops {
unsigned int (*get_pixel_format) (unsigned int bits_per_pixel,
int monitor_port);
void (*set_gamma_table) (int monitor_port, char *gamma_table_base);
void (*set_monitor_port) (int monitor_port);
void (*set_pixel_clock) (unsigned int pixclock);
ssize_t (*show_monitor_port) (int monitor_port, char *buf);
int (*set_sysfs_monitor_port) (int val);
void (*release_bootmem) (void);
u32 (*get_pixel_format)(enum fsl_diu_monitor_port port,
unsigned int bpp);
void (*set_gamma_table)(enum fsl_diu_monitor_port port,
char *gamma_table_base);
void (*set_monitor_port)(enum fsl_diu_monitor_port port);
void (*set_pixel_clock)(unsigned int pixclock);
enum fsl_diu_monitor_port (*valid_monitor_port)
(enum fsl_diu_monitor_port port);
void (*release_bootmem)(void);
};
extern struct platform_diu_data_ops diu_ops;