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| author | Peter Hurley <peter@hurleysoftware.com> | 2016-01-16 15:23:42 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-06 22:07:37 -0800 |
| commit | 4d118c9a866590850dad8689262a95345d2c6e09 (patch) | |
| tree | a5667d9441ff995380c4fc1bbda65e1d7bf5f1e7 /drivers/of/fdt.c | |
| parent | 05d961320ba624c98b16d72b32f947307674b341 (diff) | |
| download | lwn-4d118c9a866590850dad8689262a95345d2c6e09.tar.gz lwn-4d118c9a866590850dad8689262a95345d2c6e09.zip | |
of: earlycon: Add options string handling
Pass-through any options string in the 'stdout-path' property to the
earlycon "driver" setup.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/of/fdt.c')
| -rw-r--r-- | drivers/of/fdt.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index ec1459517de6..cfd3b35e8d81 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -800,7 +800,7 @@ static inline void early_init_dt_check_for_initrd(unsigned long node) static int __init early_init_dt_scan_chosen_serial(void) { int offset; - const char *p; + const char *p, *q, *options = NULL; int l; const struct earlycon_id *match; const void *fdt = initial_boot_params; @@ -817,11 +817,12 @@ static int __init early_init_dt_scan_chosen_serial(void) if (!p || !l) return -ENOENT; - /* Remove console options if present */ - l = strchrnul(p, ':') - p; + q = strchrnul(p, ':'); + if (*q != '\0') + options = q + 1; /* Get the node specified by stdout-path */ - offset = fdt_path_offset_namelen(fdt, p, l); + offset = fdt_path_offset_namelen(fdt, p, q - p); if (offset < 0) return -ENODEV; @@ -838,7 +839,7 @@ static int __init early_init_dt_scan_chosen_serial(void) if (addr == OF_BAD_ADDR) return -ENXIO; - of_setup_earlycon(addr, match); + of_setup_earlycon(addr, match, options); return 0; } return -ENODEV; |