From: Kiran Gunda <kgunda@codeaurora.org>
To: bjorn.andersson@linaro.org, jingoohan1@gmail.com,
lee.jones@linaro.org, b.zolnierkie@samsung.com,
dri-devel@lists.freedesktop.org, daniel.thompson@linaro.org,
jacek.anaszewski@gmail.com, pavel@ucw.cz, robh+dt@kernel.org,
mark.rutland@arm.com, linux-leds@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: linux-arm-msm@vger.kernel.org, phone-devel@vger.kernel.org,
Kiran Gunda <kgunda@codeaurora.org>
Subject: [PATCH V2 0/2] Fix WLED FSC Sync and brightness Sync settings
Date: Fri, 26 Feb 2021 17:42:22 +0530 [thread overview]
Message-ID: <1614341544-5306-1-git-send-email-kgunda@codeaurora.org> (raw)
This patch series has the following two WLED fixes
1. As per the current implementation, for WLED5, after
the FSC (Full Scale Current) update the driver is incorrectly
toggling the MOD_SYNC register instead of toggling the SYNC register.
The patch 1/2 fixes this by toggling the SYNC register after
FSC update.
2. Currently, the sync bits are transitioned from 1 to 0
after FSC and brightness update. As per hardware team recommendation
the FSC and brightness sync takes place from 0 to 1 transition.
The patch 2/2 fies this issue.
Changes from V1:
1. Updated the cover letter.
2. Updated the description of the patches as per Daniel's suggestion.
Kiran Gunda (2):
backlight: qcom-wled: Fix FSC update issue for WLED5
backlight: qcom-wled: Correct the sync_toggle sequence
drivers/video/backlight/qcom-wled.c | 37 +++++++++++++++++++++++++------------
1 file changed, 25 insertions(+), 12 deletions(-)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next reply other threads:[~2021-02-26 12:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-26 12:12 Kiran Gunda [this message]
2021-02-26 12:12 ` [PATCH V2 1/2] backlight: qcom-wled: Fix FSC update issue for WLED5 Kiran Gunda
2021-02-26 17:09 ` Daniel Thompson
2021-02-26 12:12 ` [PATCH V2 2/2] backlight: qcom-wled: Correct the sync_toggle sequence Kiran Gunda
2021-02-26 17:26 ` Daniel Thompson
2021-03-01 8:45 ` kgunda
2021-03-01 9:39 ` Daniel Thompson
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