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,
Andy Gross <agross@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-fbdev@vger.kernel.org
Cc: Kiran Gunda <kgunda@codeaurora.org>
Subject: [PATCH V1 2/2] backlight: qcom-wled: Correct the sync_toggle sequence
Date: Fri, 19 Feb 2021 19:37:39 +0530 [thread overview]
Message-ID: <1613743659-4726-3-git-send-email-kgunda@codeaurora.org> (raw)
In-Reply-To: <1613743659-4726-1-git-send-email-kgunda@codeaurora.org>
Currently the FSC SYNC_BIT and MOD_SYNC_BIT are toggled
from 1 to 0 to update the FSC and brightenss settings.
Change this sequence form 0 to 1 as per the hardware team
recommendation to update the FSC and brightness correctly.
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
---
drivers/video/backlight/qcom-wled.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index aef52b9..19f83ac 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -337,13 +337,13 @@ static int wled3_sync_toggle(struct wled *wled)
rc = regmap_update_bits(wled->regmap,
wled->ctrl_addr + WLED3_SINK_REG_SYNC,
- mask, mask);
+ mask, WLED3_SINK_REG_SYNC_CLEAR);
if (rc < 0)
return rc;
rc = regmap_update_bits(wled->regmap,
wled->ctrl_addr + WLED3_SINK_REG_SYNC,
- mask, WLED3_SINK_REG_SYNC_CLEAR);
+ mask, mask);
return rc;
}
@@ -353,17 +353,17 @@ static int wled5_mod_sync_toggle(struct wled *wled)
int rc;
u8 val;
- val = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_SYNC_MOD_A_BIT :
- WLED5_SINK_REG_SYNC_MOD_B_BIT;
rc = regmap_update_bits(wled->regmap,
wled->sink_addr + WLED5_SINK_REG_MOD_SYNC_BIT,
- WLED5_SINK_REG_SYNC_MASK, val);
+ WLED5_SINK_REG_SYNC_MASK, 0);
if (rc < 0)
return rc;
+ val = (wled->cfg.mod_sel == MOD_A) ? WLED5_SINK_REG_SYNC_MOD_A_BIT :
+ WLED5_SINK_REG_SYNC_MOD_B_BIT;
return regmap_update_bits(wled->regmap,
wled->sink_addr + WLED5_SINK_REG_MOD_SYNC_BIT,
- WLED5_SINK_REG_SYNC_MASK, 0);
+ WLED5_SINK_REG_SYNC_MASK, val);
}
static int wled_ovp_fault_status(struct wled *wled, bool *fault_set)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2021-02-19 14:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1613743659-4726-1-git-send-email-kgunda@codeaurora.org>
2021-02-19 14:07 ` [PATCH V1 1/2] backlight: qcom-wled: Fix FSC update issue for WLED5 Kiran Gunda
2021-02-19 14:07 ` Kiran Gunda [this message]
[not found] <1614138648-2963-1-git-send-email-kgunda@codeaurora.org>
2021-02-24 3:50 ` [PATCH V1 2/2] backlight: qcom-wled: Correct the sync_toggle sequence Kiran Gunda
2021-02-24 11:26 ` Daniel Thompson
2021-02-26 6:40 ` kgunda
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