Re: [PATCH] drm/mediatek: remove unnecessary conversion to bool

[Joe Perches]

On Fri, 2020-06-12 at 20:40 +0800, Bernard Zhao wrote:
> In function mtk_dsi_clk_hs_state, remove unnecessary conversion
> to bool return, this change is to make the code a bit readable.
[]
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
[]
> @@ -319,7 +319,7 @@ static bool mtk_dsi_clk_hs_state(struct mtk_dsi *dsi)
>  	u32 tmp_reg1;
>  
>  	tmp_reg1 = readl(dsi->regs + DSI_PHY_LCCON);
> -	return ((tmp_reg1 & LC_HS_TX_EN) == 1) ? true : false;
> +	return ((tmp_reg1 & LC_HS_TX_EN) == 1);

Given:

drivers/gpu/drm/mediatek/mtk_dsi.c:#define LC_HS_TX_EN                  BIT(0)

This is likely clearer as

	return tmp_reg1 & LC_HS_TX_EN;

or even

static bool mtk_dsi_clk_hs_state(struct mtk_dsi *dsi)
{
	return readl(dsi->regs + DSI_PHY_LCCON) & LC_HS_TX_EN;
}