From 3c7a8600dec9858da9e76adb622d161f27652b00 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Mon, 25 Oct 2021 10:09:24 -0700 Subject: [PATCH] drm/bridge: ti-sn65dsi86: Use regmap_bulk_write API The multi-register u16 write operation can use regmap_bulk_write() instead of two separate regmap_write() calls. It's uncertain if this has any effect on the actual updates of the underlying registers, but this at least gives the hardware the opportunity and saves us one transation on the bus. Signed-off-by: Bjorn Andersson Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20211025170925.3096444-2-bjorn.andersson@linaro.org --- drivers/gpu/drm/bridge/ti-sn65dsi86.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index 6154bed0af5bf..5b59d8dd3acdd 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -193,8 +193,9 @@ static const struct regmap_config ti_sn65dsi86_regmap_config = { static void ti_sn65dsi86_write_u16(struct ti_sn65dsi86 *pdata, unsigned int reg, u16 val) { - regmap_write(pdata->regmap, reg, val & 0xFF); - regmap_write(pdata->regmap, reg + 1, val >> 8); + u8 buf[2] = { val & 0xff, val >> 8 }; + + regmap_bulk_write(pdata->regmap, reg, buf, ARRAY_SIZE(buf)); } static u32 ti_sn_bridge_get_dsi_freq(struct ti_sn65dsi86 *pdata) -- 2.30.2