mirror of
https://github.com/rd-stuffs/msm-4.14.git
synced 2025-02-20 11:45:48 +08:00
82b0e23a29
On HP laptops with JMicron 388 chip, the write-locked SD card isn't detected correctly as read-only in many cases. This is because the PRESENT_STATE register becomes unsable just after plugging, and it returns the WRITE_PROTECT bit wrongly at the first read. This patch fixes the read-only detection by adding a new sdhci quirk indicating to check the register more intensively with a relatively long delay. The patch is tested with 2.6.39-rc4 kernel. Cc: Aries Lee <arieslee@jmicron.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Chris Ball <cjb@laptop.org>