lkml.org 
[lkml]   [2020]   [Apr]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
SubjectRe: [PATCH v3 1/4] drm/mediatek: Move tz_disabled from mtk_hdmi_phy to mtk_hdmi driver
From
Date


On 01/04/2020 04:16, Chunfeng Yun wrote:
> On Tue, 2020-03-31 at 23:57 +0800, Chun-Kuang Hu wrote:
>> From: CK Hu <ck.hu@mediatek.com>
>>
>> tz_disabled is used to control mtk_hdmi output signal, but this variable
>> is stored in mtk_hdmi_phy and mtk_hdmi_phy does not use it. So move
>> tz_disabled to mtk_hdmi where it's used.
>>
>> Signed-off-by: CK Hu <ck.hu@mediatek.com>
>> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
>> ---
>> drivers/gpu/drm/mediatek/mtk_hdmi.c | 22 ++++++++++++++++---
>> drivers/gpu/drm/mediatek/mtk_hdmi_phy.h | 1 -
>> .../gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c | 1 -
>> 3 files changed, 19 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> index 5e4a4dbda443..878433c09c9b 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> @@ -144,11 +144,16 @@ struct hdmi_audio_param {
>> struct hdmi_codec_params codec_params;
>> };
>>
>> +struct mtk_hdmi_conf {
>> + bool tz_disabled;
>> +};
>> +
>> struct mtk_hdmi {
>> struct drm_bridge bridge;
>> struct drm_bridge *next_bridge;
>> struct drm_connector conn;
>> struct device *dev;
>> + const struct mtk_hdmi_conf *conf;
>> struct phy *phy;
>> struct device *cec_dev;
>> struct i2c_adapter *ddc_adpt;
>> @@ -230,7 +235,6 @@ static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
>> static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
>> {
>> struct arm_smccc_res res;
>> - struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(hdmi->phy);
>>
>> /*
>> * MT8173 HDMI hardware has an output control bit to enable/disable HDMI
>> @@ -238,7 +242,7 @@ static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
>> * The ARM trusted firmware provides an API for the HDMI driver to set
>> * this control bit to enable HDMI output in supervisor mode.
>> */
>> - if (hdmi_phy->conf && hdmi_phy->conf->tz_disabled)
>> + if (hdmi->conf->tz_disabled)

Wouldn't we need to check:
if (hdmi->conf && hdmi->conf->tz_disabled)

>> regmap_update_bits(hdmi->sys_regmap,
>> hdmi->sys_offset + HDMI_SYS_CFG20,
>> 0x80008005, enable ? 0x80000005 : 0x8000);
>> @@ -1688,6 +1692,7 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev)
>> return -ENOMEM;
>>
>> hdmi->dev = dev;
>> + hdmi->conf = of_device_get_match_data(dev);
>>
>> ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev);
>> if (ret)
>> @@ -1765,8 +1770,19 @@ static int mtk_hdmi_resume(struct device *dev)
>> static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops,
>> mtk_hdmi_suspend, mtk_hdmi_resume);
>>
>> +static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 = {
>> + .tz_disabled = true,
>> +};
>> +
>> +static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8173;
>> +
>> static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
>> - { .compatible = "mediatek,mt8173-hdmi", },
>> + { .compatible = "mediatek,mt2701-hdmi",
>> + .data = &mtk_hdmi_conf_mt2701,
>> + },
>> + { .compatible = "mediatek,mt8173-hdmi",
>> + .data = &mtk_hdmi_conf_mt8173,

We don't have any data? Then we should set data to NULL instead.

Regards,
Matthias

>> + },
>> {}
>> };
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h
>> index 2d8b3182470d..fc1c2efd1128 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h
>> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.h
>> @@ -20,7 +20,6 @@
>> struct mtk_hdmi_phy;
>>
>> struct mtk_hdmi_phy_conf {
>> - bool tz_disabled;
>> unsigned long flags;
>> const struct clk_ops *hdmi_phy_clk_ops;
>> void (*hdmi_phy_enable_tmds)(struct mtk_hdmi_phy *hdmi_phy);
>> diff --git a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
>> index d3cc4022e988..99fe05cd3598 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
>> @@ -237,7 +237,6 @@ static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
>> }
>>
>> struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf = {
>> - .tz_disabled = true,
>> .flags = CLK_SET_RATE_GATE,
>> .hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops,
>> .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
>
> Reviewed-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
>

\
 
 \ /
  Last update: 2020-04-01 17:54    [W:0.055 / U:21.620 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site