backlight: qcom-wled: Use sink_addr for sync toggle

[ Upstream commit cdfd4c689e2a52c313b35ddfc1852ff274f91acb ]

WLED3_SINK_REG_SYNC is, as the name implies, a sink register offset.
Therefore, use the sink address as base instead of the ctrl address.

This fixes the sync toggle on wled4, which can be observed by the fact
that adjusting brightness now works.

It has no effect on wled3 because sink and ctrl base addresses are the
same.  This allows adjusting the brightness without having to disable
then reenable the module.

Signed-off-by: Obeida Shamoun <oshmoun100@googlemail.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Kiran Gunda <kgunda@codeaurora.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index 3bc7800eb0a93759ce07b1057bc50ceb0ff7f8ed..83a187fdaa1dfcb3cdbd7b8d96ab4b78537aa447 100644 (file)
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -336,13 +336,13 @@ static int wled3_sync_toggle(struct wled *wled)
        unsigned int mask = GENMASK(wled->max_string_count - 1, 0);
 
        rc = regmap_update_bits(wled->regmap,
-                               wled->ctrl_addr + WLED3_SINK_REG_SYNC,
+                               wled->sink_addr + WLED3_SINK_REG_SYNC,
                                mask, mask);
        if (rc < 0)
                return rc;
 
        rc = regmap_update_bits(wled->regmap,
-                               wled->ctrl_addr + WLED3_SINK_REG_SYNC,
+                               wled->sink_addr + WLED3_SINK_REG_SYNC,
                                mask, WLED3_SINK_REG_SYNC_CLEAR);
 
        return rc;