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authorBill XIE <persmule@hardenedlinux.org>2023-04-04 10:45:49 +0800
committerFelix Singer <felixsinger@posteo.net>2023-04-11 11:47:07 +0000
commitfa38535a20bdfcf0a27862fc13d2e02a09da8ef8 (patch)
tree8e7b3f8b744adbd30203af0c733bcc6744f0f081 /src/mainboard/google/peach_pit/board_info.txt
parentcc4ca5ec94a112b6d585dcbd14c71f182131fed8 (diff)
mb/lenovo/x200: Read EDID in mainboard_vbt_filename()
mainboard_vbt_filename() used to assume that it is called after a call to get_blc_pwm_freq_value() with a valid parameter, but currently it is the first call of get_blc_pwm_freq_value(NULL), and will return 0, so "data_led.vbt" is always returned, regardless of the actual type of the panel. Combined with the previous commit, in this commit mainboard_vbt_filename() will explicitly read EDID string via gm45_get_lvds_edid_str() and use this string to call get_blc_pwm_freq_value(). Resolves: https://ticket.coreboot.org/issues/475 Tested on my x200s with LTD121EQ3B (LED), and x200 with LTD121EWVB (CCFL). Signed-off-by: Bill XIE <persmule@hardenedlinux.org> Change-Id: I2e080b29321b6989d1f26b6c67876b3d703042f4 Reviewed-on: https://review.coreboot.org/c/coreboot/+/74181 Reviewed-by: Swift Geek (Sebastian Grzywna) <swiftgeek@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Singer <felixsinger@posteo.net>
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