From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Chen-Yu Tsai <wens@csie.org>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>,
Rob Herring <robh+dt@kernel.org>, Stephen Boyd <sboyd@kernel.org>,
David Airlie <airlied@linux.ie>,
Archit Taneja <architt@codeaurora.org>,
Andrzej Hajda <a.hajda@samsung.com>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
devicetree <devicetree@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-clk <linux-clk@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>,
linux-sunxi <linux-sunxi@googlegroups.com>,
Icenowy Zheng <icenowy@aosc.io>
Subject: Re: [PATCH v2 25/29] drm: sun4i: add quirks for TCON TOP
Date: Mon, 8 Oct 2018 12:20:21 +0200 [thread overview]
Message-ID: <20181008102021.ox34mqbw65euvsb4@flea> (raw)
In-Reply-To: <CAGb2v64avzzrGJeg2HU_Ze686C1nmVsNwXJGzsUbQvQTZKuSMw@mail.gmail.com>
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On Mon, Oct 08, 2018 at 05:06:45PM +0800, Chen-Yu Tsai wrote:
> On Mon, Oct 8, 2018 at 4:51 PM Maxime Ripard <maxime.ripard@bootlin.com> wrote:
> >
> > On Sun, Oct 07, 2018 at 11:39:01AM +0200, Jernej Skrabec wrote:
> > > From: Icenowy Zheng <icenowy@aosc.io>
> > >
> > > Some SoCs, such as H6, doesn't have a full-featured TCON TOP.
> > >
> > > Add quirks support for TCON TOP.
> > >
> > > Currently the presence of TCON_TV1 and DSI is controlled via the quirks
> > > structure.
> > >
> > > Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> > > ---
> > > drivers/gpu/drm/sun4i/sun8i_tcon_top.c | 43 ++++++++++++++++++++------
> > > 1 file changed, 34 insertions(+), 9 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/sun4i/sun8i_tcon_top.c b/drivers/gpu/drm/sun4i/sun8i_tcon_top.c
> > > index 37158548b447..ed13233cad88 100644
> > > --- a/drivers/gpu/drm/sun4i/sun8i_tcon_top.c
> > > +++ b/drivers/gpu/drm/sun4i/sun8i_tcon_top.c
> > > @@ -9,11 +9,17 @@
> > > #include <linux/component.h>
> > > #include <linux/device.h>
> > > #include <linux/module.h>
> > > +#include <linux/of_device.h>
> > > #include <linux/of_graph.h>
> > > #include <linux/platform_device.h>
> > >
> > > #include "sun8i_tcon_top.h"
> > >
> > > +struct sun8i_tcon_top_quirks {
> > > + bool has_tcon_tv1;
> > > + bool has_dsi;
> > > +};
> > > +
> > > static bool sun8i_tcon_top_node_is_tcon_top(struct device_node *node)
> > > {
> > > return !!of_match_node(sun8i_tcon_top_of_table, node);
> > > @@ -121,10 +127,13 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master,
> > > struct platform_device *pdev = to_platform_device(dev);
> > > struct clk_hw_onecell_data *clk_data;
> > > struct sun8i_tcon_top *tcon_top;
> > > + const struct sun8i_tcon_top_quirks *quirks;
> > > struct resource *res;
> > > void __iomem *regs;
> > > int ret, i;
> > >
> > > + quirks = of_device_get_match_data(&pdev->dev);
> > > +
> > > tcon_top = devm_kzalloc(dev, sizeof(*tcon_top), GFP_KERNEL);
> > > if (!tcon_top)
> > > return -ENOMEM;
> > > @@ -187,15 +196,23 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master,
> > > &tcon_top->reg_lock,
> > > TCON_TOP_TCON_TV0_GATE, 0);
> > >
> > > - clk_data->hws[CLK_TCON_TOP_TV1] =
> > > - sun8i_tcon_top_register_gate(dev, "tcon-tv1", regs,
> > > - &tcon_top->reg_lock,
> > > - TCON_TOP_TCON_TV1_GATE, 1);
> > > + if (quirks->has_tcon_tv1) {
> > > + clk_data->hws[CLK_TCON_TOP_TV1] =
> > > + sun8i_tcon_top_register_gate(dev, "tcon-tv1", regs,
> > > + &tcon_top->reg_lock,
> > > + TCON_TOP_TCON_TV1_GATE, 1);
> > > + } else {
> > > + clk_data->hws[CLK_TCON_TOP_TV1] = NULL;
> > > + }
> > >
> > > - clk_data->hws[CLK_TCON_TOP_DSI] =
> > > - sun8i_tcon_top_register_gate(dev, "dsi", regs,
> > > - &tcon_top->reg_lock,
> > > - TCON_TOP_TCON_DSI_GATE, 2);
> > > + if (quirks->has_dsi) {
> > > + clk_data->hws[CLK_TCON_TOP_DSI] =
> > > + sun8i_tcon_top_register_gate(dev, "dsi", regs,
> > > + &tcon_top->reg_lock,
> > > + TCON_TOP_TCON_DSI_GATE, 2);
> > > + } else {
> > > + clk_data->hws[CLK_TCON_TOP_DSI] = NULL;
> >
> > clk_data has been kzalloc'd so its content is already NULL.
> >
> > And you shouldn't have brackets for single line blocks.
> >
> > with that fixed,
>
> FYI checkpatch.pl complains if you use brackets for the if block
> but not for the else block. They should be matching.
Checkpatch might not warn on this, but
https://www.kernel.org/doc/Documentation/process/coding-style.rst,
section 3 is pretty clear on whether we should use them or not.
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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next prev parent reply other threads:[~2018-10-08 10:20 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-07 9:38 [PATCH v2 00/29] Allwinner H6 DE3 and HDMI support Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 01/29] dt-bindings: bus: add H6 DE3 bus binding Jernej Skrabec
2018-10-08 8:31 ` Maxime Ripard
2018-10-08 14:25 ` Jernej Škrabec
2018-10-07 9:38 ` [PATCH v2 02/29] clk: sunxi-ng: Adjust MP clock parent rate when allowed Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 03/29] clk: sunxi-ng: Use u64 for calculation of NM rate Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 04/29] clk: sunxi-ng: h6: Set video PLLs limits Jernej Skrabec
2018-10-12 8:13 ` [linux-sunxi] " Jagan Teki
2018-10-12 9:03 ` Chen-Yu Tsai
2018-10-07 9:38 ` [PATCH v2 05/29] dt-bindings: clock: sun8i-de2: Add H6 DE3 clock description Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 06/29] clk: sunxi-ng: Add support for H6 DE3 clocks Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 07/29] dt-bindings: display: sun4i-drm: Add H6 display engine compatibles Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 08/29] drm/sun4i: Add compatible for H6 display engine Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 09/29] drm/sun4i: Rework DE2 register defines Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 10/29] drm/sun4i: Rename DE2 registers related macros Jernej Skrabec
2018-10-08 10:18 ` Maxime Ripard
2018-10-08 14:28 ` Jernej Škrabec
2018-10-09 15:53 ` Maxime Ripard
2018-10-07 9:38 ` [PATCH v2 11/29] drm/sun4i: Fix DE2 mixer size Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 12/29] drm/sun4i: Disable unused DE2 sub-engines Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 13/29] drm/sun4i: Add basic support for DE3 Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 14/29] drm/sun4i: Add support for H6 DE3 mixer 0 Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 15/29] drm/bridge/synopsys: dw-hdmi: Enable workaround for v2.12a Jernej Skrabec
2018-10-09 17:40 ` Laurent Pinchart
2018-10-09 17:56 ` Ilia Mirkin
2018-10-09 21:23 ` Russell King - ARM Linux
2018-10-15 17:43 ` [linux-sunxi] " Jernej Škrabec
2018-10-07 9:38 ` [PATCH v2 16/29] drm/sun4i: Not all DW HDMI controllers has scrambled addresses Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 17/29] drm/sun4i: dw-hdmi: Make mode_valid function configurable Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 18/29] drm/sun4i: dw-hdmi: Add quirk for setting TMDS clock Jernej Skrabec
2018-10-08 9:14 ` Maxime Ripard
2018-10-08 15:09 ` Jernej Škrabec
2018-10-09 9:14 ` Maxime Ripard
2018-10-07 9:38 ` [PATCH v2 19/29] dt-bindings: display: sunxi: add DT binding for Allwinner H6 DW HDMI Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 20/29] drm/sun4i: Add support for H6 DW HDMI controller Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 21/29] drm/sun4i: dw-hdmi-phy: Reorder quirks by family Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 22/29] drm/sun4i: Add support for Synopsys HDMI PHY Jernej Skrabec
2018-10-07 9:38 ` [PATCH v2 23/29] drm/sun4i: Add support for H6 " Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 24/29] drm/sun4i: Initialize registers in tcon-top driver Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 25/29] drm: sun4i: add quirks for TCON TOP Jernej Skrabec
2018-10-08 8:51 ` Maxime Ripard
2018-10-08 9:06 ` Chen-Yu Tsai
2018-10-08 10:20 ` Maxime Ripard [this message]
2018-10-08 10:50 ` Chen-Yu Tsai
2018-10-08 12:33 ` Maxime Ripard
2018-10-08 13:10 ` Chen-Yu Tsai
2018-10-08 14:30 ` Jernej Škrabec
2018-10-07 9:39 ` [PATCH v2 26/29] dt-bindings: display: sun4i-drm: document H6 " Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 27/29] drm: sun4i: add support for " Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 28/29] arm64: dts: allwinner: h6: Add HDMI pipeline Jernej Skrabec
2018-10-07 9:39 ` [PATCH v2 29/29] arm64: dts: allwinner: h6: Enable HDMI output on Pine H64 board Jernej Skrabec
2018-10-07 9:50 ` [linux-sunxi] [PATCH v2 00/29] Allwinner H6 DE3 and HDMI support Jernej Škrabec
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