linux-kernel - Re: [RESENT PATCH] drm/panel: support Innolux P097PFG panel

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Message-ID: <4af15693-7ccd-6cd8-cd91-6285c0e354e6@rock-chips.com>
Date:   Fri, 1 Dec 2017 11:06:51 +0800
From:   hl <hl@...k-chips.com>
To:     Brian Norris <briannorris@...omium.org>
Cc:     thierry.reding@...il.com, zyw@...k-chips.com,
        seanpaul@...omium.org, nickey.yang@...k-chips.com,
        airlied@...ux.ie, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Derek Basehore <dbasehore@...omium.org>
Subject: Re: [RESENT PATCH] drm/panel: support Innolux P097PFG panel

Hi


On Friday, December 01, 2017 10:54 AM, Brian Norris wrote:
> One more comment:
>
> On Thu, Nov 30, 2017 at 02:14:40PM +0800, Lin Huang wrote:
>> Support Innolux P097PFG 9.7" 1536x2048 TFT LCD panel,
>> it refactor Innolux P079ZCA panel driver, let it support
>> multi panel, and add support P097PFG panel in this driver.
>>
>> Signed-off-by: Lin Huang <hl@...k-chips.com>
>>
>> ---
>>   drivers/gpu/drm/panel/panel-innolux-p079zca.c | 178 ++++++++++++++++++++------
>>   1 file changed, 136 insertions(+), 42 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
>> index 6ba9344..a40798f 100644
>> --- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c
>> +++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
> ...
>
>> @@ -209,20 +284,39 @@ static const struct drm_panel_funcs innolux_panel_funcs = {
>>   };
>>   
>>   static const struct of_device_id innolux_of_match[] = {
>> -	{ .compatible = "innolux,p079zca", },
>> -	{ }
>> +	{ .compatible = "innolux,p079zca",
>> +	  .data = &innolux_p079zca_panel_desc
>> +	},
>> +	{ .compatible = "innolux,p097pfg",
>> +	  .data = &innolux_p097pfg_panel_desc
>> +	}
>>   };
>>   MODULE_DEVICE_TABLE(of, innolux_of_match);
>>   
>> -static int innolux_panel_add(struct innolux_panel *innolux)
>> +static int innolux_panel_add(struct mipi_dsi_device *dsi,
>> +			     const struct panel_desc_dsi *desc)
>>   {
>> -	struct device *dev = &innolux->link->dev;
>> +	struct innolux_panel *innolux;
>> +	struct device *dev = &dsi->dev;
>>   	struct device_node *np;
>>   	int err;
>>   
>> -	innolux->supply = devm_regulator_get(dev, "power");
>> -	if (IS_ERR(innolux->supply))
>> -		return PTR_ERR(innolux->supply);
>> +	innolux = devm_kzalloc(dev, sizeof(*innolux), GFP_KERNEL);
>> +	if (!innolux)
>> +		return -ENOMEM;
>> +
>> +	innolux->dsi_desc = desc;
>> +	innolux->vddi = devm_regulator_get_optional(dev, "power");
>> +	if (IS_ERR(innolux->vddi))
>> +		return PTR_ERR(innolux->vddi);
>> +
>> +	innolux->avdd = devm_regulator_get(dev, "ppvarp");
> This name ("ppvarp" and the "ppvarn" below) are names from our board
> schematics, not from the panel datasheet. I would think these should be
> "vdd" and "vee", like your variable names.
Okay, will fix it next version.
>
> Brian
>
>> +	if (IS_ERR(innolux->avdd))
>> +		return PTR_ERR(innolux->avdd);
>> +
>> +	innolux->avee = devm_regulator_get(dev, "ppvarn");
>> +	if (IS_ERR(innolux->avee))
>> +		return PTR_ERR(innolux->avee);
>>   
>>   	innolux->enable_gpio = devm_gpiod_get_optional(dev, "enable",
>>   						       GPIOD_OUT_HIGH);
> ...
>
>
>