Staging: ipack: Obtain supported speeds from ID ROM.
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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eb12d88bf5
Коммит
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@ -262,15 +262,21 @@ static void ipack_parse_id1(struct ipack_device *dev)
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dev->id_vendor = id[4];
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dev->id_device = id[5];
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dev->speed_8mhz = 1;
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dev->speed_32mhz = (id[7] == 'H');
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}
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static void ipack_parse_id2(struct ipack_device *dev)
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{
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__be16 *id = (__be16 *) dev->id;
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u16 flags;
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dev->id_vendor = ((be16_to_cpu(id[3]) & 0xff) << 16)
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+ be16_to_cpu(id[4]);
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dev->id_device = be16_to_cpu(id[5]);
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flags = be16_to_cpu(id[10]);
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dev->speed_8mhz = !!(flags & 2);
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dev->speed_32mhz = !!(flags & 4);
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}
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static int ipack_device_read_id(struct ipack_device *dev)
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@ -79,6 +79,8 @@ struct ipack_device {
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u32 id_vendor;
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u32 id_device;
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u8 id_format;
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unsigned int speed_8mhz:1;
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unsigned int speed_32mhz:1;
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};
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/**
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