Messages in this thread | | | Date | Wed, 8 Mar 2023 12:46:07 +0100 | Subject | Re: [PATCH 0/2] pwm: mtk-disp: Fix backlight configuration at boot | From | AngeloGioacchino Del Regno <> |
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Il 23/02/23 15:16, AngeloGioacchino Del Regno ha scritto: > Il 23/01/23 17:06, AngeloGioacchino Del Regno ha scritto: >> Since the pwm-mtk-disp driver was fixed to get PWM_EN state from the >> right register, an old two-wrongs-make-one-right issue emerged: as a >> result, MT8192 Asurada Spherion got no backlight at boot unless a >> suspend/resume cycle was performed. >> Also, the backlight would sometimes not get updated with the requested >> value, requiring the user to change it back and forth until it worked. >> >> This series fixes both of the aforementioned issues found on MT8192. >> >> AngeloGioacchino Del Regno (2): >> pwm: mtk-disp: Disable shadow registers before setting backlight >> values >> pwm: mtk-disp: Configure double buffering before reading in >> .get_state() >> >> drivers/pwm/pwm-mtk-disp.c | 34 +++++++++++++++++++++++----------- >> 1 file changed, 23 insertions(+), 11 deletions(-) >> > > Gentle ping for this one: this is fixing backlight issues on multiple MediaTek > SoCs and was well tested. > > Thanks, > Angelo
Since this series was sent more than one month ago, and since this fixes broken backlight on a number of Chromebooks with MT8183 and MT8192 SoCs, and seen the urgency of getting these fixes in, I'm adding Greg to the loop.
Regards, Angelo
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