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drm/mediatek: dsi: Replace open-coded instance of HZ_PER_MHZ

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In mtk_dsi_phy_timconfig(), we're dividing the `data_rate` variable,
expressed in Hz to retrieve a value in MHz: instead of open-coding,
use the HZ_PER_MHZ definition, available in linux/units.h.

Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240215085316.56835-6-angelogioacchino.delregno@collabora.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
AngeloGioacchino Del Regno
2024-02-15 09:53:12 +01:00
committed by Chun-Kuang Hu
parent aaeb9335fb
commit ff4e452146
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/mediatek/mtk_dsi.c
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@@ -13,6 +13,7 @@
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include <linux/units.h>
#include <video/mipi_display.h>
#include <video/videomode.h>
@@ -238,7 +239,7 @@ static void mtk_dsi_mask(struct mtk_dsi *dsi, u32 offset, u32 mask, u32 data)
static void mtk_dsi_phy_timconfig(struct mtk_dsi *dsi)
{
u32 timcon0, timcon1, timcon2, timcon3;
u32 data_rate_mhz = DIV_ROUND_UP(dsi->data_rate, 1000000);
u32 data_rate_mhz = DIV_ROUND_UP(dsi->data_rate, HZ_PER_MHZ);
struct mtk_phy_timing *timing = &dsi->phy_timing;
timing->lpx = (60 * data_rate_mhz / (8 * 1000)) + 1;