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ODROID-COMMON: media/vout: add new kernel param 'cvbscable='

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This patch is to indicate when CVBS cable is connected or not, '1' as the cable
is attached and '0' otherwise. Currently CVBS cable only can be detected by
U-boot since the detection signal can be read by ADC.

Change-Id: I8fdff0cf0a2cf2bb2a94b296a1e2e5946864513d
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
(cherry picked from commit 781aec7eee)
This commit is contained in:
Dongjin Kim
2019-02-20 15:49:01 +09:00
committed by Chris KIM
parent 75b3009e41
commit 99e2caa2b5
2 changed files with 22 additions and 0 deletions
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18
drivers/amlogic/media/vout/cvbs/cvbs_out.c
View File

@@ -1640,6 +1640,24 @@ static int __init cvbs_performance_setup(char *line)
}
__setup("cvbsdrv=", cvbs_performance_setup);
#if defined(CONFIG_ARCH_MESON64_ODROID_COMMON)
static int cvbs_cable = 0;
int cvbs_cable_connected(void)
{
return cvbs_cable;
}
EXPORT_SYMBOL(cvbs_cable_connected);
static int __init get_cvbs_cable(char *str)
{
cvbs_cable = (str[0] == '0') ? 0 : 1;
return 0;
}
__setup("cvbscable=", get_cvbs_cable);
#endif
arch_initcall(cvbs_init_module);
module_exit(cvbs_exit_module);

4
drivers/amlogic/media/vout/vout_serve/vout_func.h
View File

@@ -91,4 +91,8 @@ extern int vout2_resume(void);
extern int vout2_shutdown(void);
#endif
#if defined(CONFIG_ARCH_MESON64_ODROID_COMMON)
extern int cvbs_cable_connected(void);
#endif
#endif