* [PATCH] drm/mediatek: remove unnecessary conversion to bool
@ 2020-06-12 12:40 Bernard Zhao
2020-06-12 13:09 ` Robin Murphy
2020-06-14 20:41 ` Joe Perches
0 siblings, 2 replies; 5+ messages in thread
From: Bernard Zhao @ 2020-06-12 12:40 UTC (permalink / raw)
To: Chun-Kuang Hu, Philipp Zabel, David Airlie, Daniel Vetter,
Matthias Brugger, dri-devel, linux-arm-kernel, linux-mediatek,
linux-kernel
Cc: opensource.kernel, Bernard Zhao
In function mtk_dsi_clk_hs_state, remove unnecessary conversion
to bool return, this change is to make the code a bit readable.
Signed-off-by: Bernard Zhao <bernard@vivo.com>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 270bf22c98fe..4491e64b3f06 100644
--- 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);
}
static void mtk_dsi_clk_hs_mode(struct mtk_dsi *dsi, bool enter)
--
2.17.1
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^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] drm/mediatek: remove unnecessary conversion to bool
2020-06-12 12:40 [PATCH] drm/mediatek: remove unnecessary conversion to bool Bernard Zhao
@ 2020-06-12 13:09 ` Robin Murphy
2020-06-14 20:41 ` Joe Perches
1 sibling, 0 replies; 5+ messages in thread
From: Robin Murphy @ 2020-06-12 13:09 UTC (permalink / raw)
To: Bernard Zhao, Chun-Kuang Hu, Philipp Zabel, David Airlie,
Daniel Vetter, Matthias Brugger, dri-devel, linux-arm-kernel,
linux-mediatek, linux-kernel
Cc: opensource.kernel
On 2020-06-12 13:40, 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.
>
> Signed-off-by: Bernard Zhao <bernard@vivo.com>
> ---
> drivers/gpu/drm/mediatek/mtk_dsi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index 270bf22c98fe..4491e64b3f06 100644
> --- 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);
FWIW the "== 1" is also redundant, not to mention a little confusing -
unless you go and look up the definition of LC_HS_TX_EN, it looks like
this is doing something more than simply testing if a single bit is set.
Robin.
> }
>
> static void mtk_dsi_clk_hs_mode(struct mtk_dsi *dsi, bool enter)
>
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] drm/mediatek: remove unnecessary conversion to bool
2020-06-12 12:40 [PATCH] drm/mediatek: remove unnecessary conversion to bool Bernard Zhao
2020-06-12 13:09 ` Robin Murphy
@ 2020-06-14 20:41 ` Joe Perches
2020-06-15 14:00 ` Chun-Kuang Hu
1 sibling, 1 reply; 5+ messages in thread
From: Joe Perches @ 2020-06-14 20:41 UTC (permalink / raw)
To: Bernard Zhao, Chun-Kuang Hu, Philipp Zabel, David Airlie,
Daniel Vetter, Matthias Brugger, dri-devel, linux-arm-kernel,
linux-mediatek, linux-kernel
Cc: opensource.kernel
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;
}
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH] drm/mediatek: remove unnecessary conversion to bool
2020-06-14 20:41 ` Joe Perches
@ 2020-06-15 14:00 ` Chun-Kuang Hu
2020-06-16 2:16 ` Bernard
0 siblings, 1 reply; 5+ messages in thread
From: Chun-Kuang Hu @ 2020-06-15 14:00 UTC (permalink / raw)
To: Joe Perches
Cc: Chun-Kuang Hu, Philipp Zabel, opensource.kernel, David Airlie,
Bernard Zhao, linux-kernel, DRI Development,
moderated list:ARM/Mediatek SoC support, Daniel Vetter,
Matthias Brugger, Linux ARM
Joe Perches <joe@perches.com> 於 2020年6月15日 週一 上午4:41寫道：
>
> 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;
> }
I like the second one.
>
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re:Re: [PATCH] drm/mediatek: remove unnecessary conversion to bool
2020-06-15 14:00 ` Chun-Kuang Hu
@ 2020-06-16 2:16 ` Bernard
0 siblings, 0 replies; 5+ messages in thread
From: Bernard @ 2020-06-16 2:16 UTC (permalink / raw)
To: Chun-Kuang Hu
Cc: Chun-Kuang Hu, Philipp Zabel, opensource.kernel, David Airlie,
linux-kernel, DRI Development, Matthias Brugger,
moderated list:ARM/Mediatek SoC support, Daniel Vetter,
Joe Perches, Linux ARM
发件人：Chun-Kuang Hu <chunkuang.hu@kernel.org>
发送日期：2020-06-15 22:00:52
收件人：Joe Perches <joe@perches.com>
抄送人：Bernard Zhao <bernard@vivo.com>,Chun-Kuang Hu <chunkuang.hu@kernel.org>,Philipp Zabel <p.zabel@pengutronix.de>,David Airlie <airlied@linux.ie>,Daniel Vetter <daniel@ffwll.ch>,Matthias Brugger <matthias.bgg@gmail.com>,DRI Development <dri-devel@lists.freedesktop.org>,Linux ARM <linux-arm-kernel@lists.infradead.org>,"moderated list:ARM/Mediatek SoC support" <linux-mediatek@lists.infradead.org>,linux-kernel <linux-kernel@vger.kernel.org>,opensource.kernel@vivo.com
主题：Re: [PATCH] drm/mediatek: remove unnecessary conversion to bool>Joe Perches <joe@perches.com> 於 2020年6月15日 週一 上午4:41寫道：
>>
>> 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;
>> }
>
>I like the second one.
Hi:
This modification is clear and easy to understand.
I will update the patch and resubmit.
Thanks!
BR//Bernard
>>
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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^ permalink raw reply [flat|nested] 5+ messages in thread
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2020-06-12 12:40 [PATCH] drm/mediatek: remove unnecessary conversion to bool Bernard Zhao
2020-06-12 13:09 ` Robin Murphy
2020-06-14 20:41 ` Joe Perches
2020-06-15 14:00 ` Chun-Kuang Hu
2020-06-16 2:16 ` Bernard
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