Am 10.12.19 um 16:11 schrieb Mihail Atanassov: > As suggested in [1], the 'dev' field is a bit repetitive, since it 1:1 > follows the setting and NULLing of the 'encoder' field. Therefore, use > drm_bridge->encoder->dev in place of drm_bridge->dev. > > [1] https://patchwork.freedesktop.org/patch/343824/ > > Cc: Daniel Vetter <daniel@xxxxxxxx> > Suggested-by: Thomas Zimmermann <tzimmermann@xxxxxxx> > Signed-off-by: Mihail Atanassov <mihail.atanassov@xxxxxxx> Nice. Acked-by: Thomas Zimmermann > --- > drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 2 +- > drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 2 +- > drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c | 2 +- > drivers/gpu/drm/bridge/cdns-dsi.c | 2 +- > drivers/gpu/drm/bridge/dumb-vga-dac.c | 2 +- > .../gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 2 +- > drivers/gpu/drm/bridge/nxp-ptn3460.c | 2 +- > drivers/gpu/drm/bridge/panel.c | 2 +- > drivers/gpu/drm/bridge/parade-ps8622.c | 2 +- > drivers/gpu/drm/bridge/sii902x.c | 6 +++--- > drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 6 +++--- > drivers/gpu/drm/bridge/tc358764.c | 4 ++-- > drivers/gpu/drm/bridge/tc358767.c | 6 +++--- > drivers/gpu/drm/bridge/ti-sn65dsi86.c | 2 +- > drivers/gpu/drm/bridge/ti-tfp410.c | 6 +++--- > drivers/gpu/drm/drm_bridge.c | 10 ++++------ > drivers/gpu/drm/i2c/tda998x_drv.c | 2 +- > drivers/gpu/drm/mcde/mcde_dsi.c | 2 +- > drivers/gpu/drm/msm/edp/edp_bridge.c | 2 +- > drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 4 ++-- > drivers/gpu/drm/rcar-du/rcar_lvds.c | 3 ++- > include/drm/drm_bridge.h | 2 -- > 22 files changed, 35 insertions(+), 38 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c > index 9e13e466e72c..009cf1fef8d4 100644 > --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c > +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c > @@ -863,7 +863,7 @@ static int adv7511_bridge_attach(struct drm_bridge *bridge) > adv->connector.polled = DRM_CONNECTOR_POLL_CONNECT | > DRM_CONNECTOR_POLL_DISCONNECT; > > - ret = drm_connector_init(bridge->dev, &adv->connector, > + ret = drm_connector_init(bridge->encoder->dev, &adv->connector, > &adv7511_connector_funcs, > DRM_MODE_CONNECTOR_HDMIA); > if (ret) { > diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c > index 9917ce0d86a0..5b806d23fcb3 100644 > --- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c > +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c > @@ -541,7 +541,7 @@ static int anx6345_bridge_attach(struct drm_bridge *bridge) > return err; > } > > - err = drm_connector_init(bridge->dev, &anx6345->connector, > + err = drm_connector_init(bridge->encoder->dev, &anx6345->connector, > &anx6345_connector_funcs, > DRM_MODE_CONNECTOR_eDP); > if (err) { > diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c > index 41867be03751..7463537950cb 100644 > --- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c > +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c > @@ -908,7 +908,7 @@ static int anx78xx_bridge_attach(struct drm_bridge *bridge) > return err; > } > > - err = drm_connector_init(bridge->dev, &anx78xx->connector, > + err = drm_connector_init(bridge->encoder->dev, &anx78xx->connector, > &anx78xx_connector_funcs, > DRM_MODE_CONNECTOR_DisplayPort); > if (err) { > diff --git a/drivers/gpu/drm/bridge/cdns-dsi.c b/drivers/gpu/drm/bridge/cdns-dsi.c > index 3a5bd4e7fd1e..32863e3ad537 100644 > --- a/drivers/gpu/drm/bridge/cdns-dsi.c > +++ b/drivers/gpu/drm/bridge/cdns-dsi.c > @@ -651,7 +651,7 @@ static int cdns_dsi_bridge_attach(struct drm_bridge *bridge) > struct cdns_dsi *dsi = input_to_dsi(input); > struct cdns_dsi_output *output = &dsi->output; > > - if (!drm_core_check_feature(bridge->dev, DRIVER_ATOMIC)) { > + if (!drm_core_check_feature(bridge->encoder->dev, DRIVER_ATOMIC)) { > dev_err(dsi->base.dev, > "cdns-dsi driver is only compatible with DRM devices supporting atomic updates"); > return -ENOTSUPP; > diff --git a/drivers/gpu/drm/bridge/dumb-vga-dac.c b/drivers/gpu/drm/bridge/dumb-vga-dac.c > index cc33dc411b9e..67ad6cecf68d 100644 > --- a/drivers/gpu/drm/bridge/dumb-vga-dac.c > +++ b/drivers/gpu/drm/bridge/dumb-vga-dac.c > @@ -112,7 +112,7 @@ static int dumb_vga_attach(struct drm_bridge *bridge) > > drm_connector_helper_add(&vga->connector, > &dumb_vga_con_helper_funcs); > - ret = drm_connector_init_with_ddc(bridge->dev, &vga->connector, > + ret = drm_connector_init_with_ddc(bridge->encoder->dev, &vga->connector, > &dumb_vga_con_funcs, > DRM_MODE_CONNECTOR_VGA, > vga->ddc); > diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c > index e8a49f6146c6..c914f01e4707 100644 > --- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c > +++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c > @@ -223,7 +223,7 @@ static int ge_b850v3_lvds_attach(struct drm_bridge *bridge) > drm_connector_helper_add(connector, > &ge_b850v3_lvds_connector_helper_funcs); > > - ret = drm_connector_init(bridge->dev, connector, > + ret = drm_connector_init(bridge->encoder->dev, connector, > &ge_b850v3_lvds_connector_funcs, > DRM_MODE_CONNECTOR_DisplayPort); > if (ret) { > diff --git a/drivers/gpu/drm/bridge/nxp-ptn3460.c b/drivers/gpu/drm/bridge/nxp-ptn3460.c > index 57ff01339559..3999bb864eb9 100644 > --- a/drivers/gpu/drm/bridge/nxp-ptn3460.c > +++ b/drivers/gpu/drm/bridge/nxp-ptn3460.c > @@ -247,7 +247,7 @@ static int ptn3460_bridge_attach(struct drm_bridge *bridge) > } > > ptn_bridge->connector.polled = DRM_CONNECTOR_POLL_HPD; > - ret = drm_connector_init(bridge->dev, &ptn_bridge->connector, > + ret = drm_connector_init(bridge->encoder->dev, &ptn_bridge->connector, > &ptn3460_connector_funcs, DRM_MODE_CONNECTOR_LVDS); > if (ret) { > DRM_ERROR("Failed to initialize connector with drm\n"); > diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c > index f66777e24968..4ba4e9d9537a 100644 > --- a/drivers/gpu/drm/bridge/panel.c > +++ b/drivers/gpu/drm/bridge/panel.c > @@ -67,7 +67,7 @@ static int panel_bridge_attach(struct drm_bridge *bridge) > drm_connector_helper_add(connector, > &panel_bridge_connector_helper_funcs); > > - ret = drm_connector_init(bridge->dev, connector, > + ret = drm_connector_init(bridge->encoder->dev, connector, > &panel_bridge_connector_funcs, > panel_bridge->connector_type); > if (ret) { > diff --git a/drivers/gpu/drm/bridge/parade-ps8622.c b/drivers/gpu/drm/bridge/parade-ps8622.c > index 10c47c008b40..c32af9c2bbcc 100644 > --- a/drivers/gpu/drm/bridge/parade-ps8622.c > +++ b/drivers/gpu/drm/bridge/parade-ps8622.c > @@ -487,7 +487,7 @@ static int ps8622_attach(struct drm_bridge *bridge) > } > > ps8622->connector.polled = DRM_CONNECTOR_POLL_HPD; > - ret = drm_connector_init(bridge->dev, &ps8622->connector, > + ret = drm_connector_init(bridge->encoder->dev, &ps8622->connector, > &ps8622_connector_funcs, DRM_MODE_CONNECTOR_LVDS); > if (ret) { > DRM_ERROR("Failed to initialize connector with drm\n"); > diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c > index b70e8c5cf2e1..6ca297d78a26 100644 > --- a/drivers/gpu/drm/bridge/sii902x.c > +++ b/drivers/gpu/drm/bridge/sii902x.c > @@ -402,7 +402,7 @@ static void sii902x_bridge_mode_set(struct drm_bridge *bridge, > static int sii902x_bridge_attach(struct drm_bridge *bridge) > { > struct sii902x *sii902x = bridge_to_sii902x(bridge); > - struct drm_device *drm = bridge->dev; > + struct drm_device *drm = bridge->encoder->dev; > int ret; > > drm_connector_helper_add(&sii902x->connector, > @@ -820,8 +820,8 @@ static irqreturn_t sii902x_interrupt(int irq, void *data) > > mutex_unlock(&sii902x->mutex); > > - if ((status & SII902X_HOTPLUG_EVENT) && sii902x->bridge.dev) > - drm_helper_hpd_irq_event(sii902x->bridge.dev); > + if ((status & SII902X_HOTPLUG_EVENT) && sii902x->bridge.encoder) > + drm_helper_hpd_irq_event(sii902x->bridge.encoder->dev); > > return IRQ_HANDLED; > } > diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c > index dbe38a54870b..99274ca0fdf6 100644 > --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c > +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c > @@ -2346,7 +2346,7 @@ static int dw_hdmi_bridge_attach(struct drm_bridge *bridge) > > drm_connector_helper_add(connector, &dw_hdmi_connector_helper_funcs); > > - drm_connector_init_with_ddc(bridge->dev, connector, > + drm_connector_init_with_ddc(bridge->encoder->dev, connector, > &dw_hdmi_connector_funcs, > DRM_MODE_CONNECTOR_HDMIA, > hdmi->ddc); > @@ -2554,8 +2554,8 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id) > if (intr_stat & HDMI_IH_PHY_STAT0_HPD) { > dev_dbg(hdmi->dev, "EVENT=%s\n", > phy_int_pol & HDMI_PHY_HPD ? "plugin" : "plugout"); > - if (hdmi->bridge.dev) > - drm_helper_hpd_irq_event(hdmi->bridge.dev); > + if (hdmi->bridge.encoder) > + drm_helper_hpd_irq_event(hdmi->bridge.encoder->dev); > } > > hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0); > diff --git a/drivers/gpu/drm/bridge/tc358764.c b/drivers/gpu/drm/bridge/tc358764.c > index 96207fcfde19..e35e17b1f396 100644 > --- a/drivers/gpu/drm/bridge/tc358764.c > +++ b/drivers/gpu/drm/bridge/tc358764.c > @@ -352,7 +352,7 @@ static void tc358764_enable(struct drm_bridge *bridge) > static int tc358764_attach(struct drm_bridge *bridge) > { > struct tc358764 *ctx = bridge_to_tc358764(bridge); > - struct drm_device *drm = bridge->dev; > + struct drm_device *drm = bridge->encoder->dev; > int ret; > > ctx->connector.polled = DRM_CONNECTOR_POLL_HPD; > @@ -378,7 +378,7 @@ static int tc358764_attach(struct drm_bridge *bridge) > static void tc358764_detach(struct drm_bridge *bridge) > { > struct tc358764 *ctx = bridge_to_tc358764(bridge); > - struct drm_device *drm = bridge->dev; > + struct drm_device *drm = bridge->encoder->dev; > > drm_connector_unregister(&ctx->connector); > drm_fb_helper_remove_one_connector(drm->fb_helper, &ctx->connector); > diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c > index 3709e5ace724..ab1524c00777 100644 > --- a/drivers/gpu/drm/bridge/tc358767.c > +++ b/drivers/gpu/drm/bridge/tc358767.c > @@ -1407,7 +1407,7 @@ static int tc_bridge_attach(struct drm_bridge *bridge) > { > u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24; > struct tc_data *tc = bridge_to_tc(bridge); > - struct drm_device *drm = bridge->dev; > + struct drm_device *drm = bridge->encoder->dev; > int ret; > > /* Create DP/eDP connector */ > @@ -1514,7 +1514,7 @@ static irqreturn_t tc_irq_handler(int irq, void *arg) > dev_err(tc->dev, "syserr %x\n", stat); > } > > - if (tc->hpd_pin >= 0 && tc->bridge.dev) { > + if (tc->hpd_pin >= 0 && tc->bridge.encoder) { > /* > * H is triggered when the GPIO goes high. > * > @@ -1528,7 +1528,7 @@ static irqreturn_t tc_irq_handler(int irq, void *arg) > h ? "H" : "", lc ? "LC" : ""); > > if (h || lc) > - drm_kms_helper_hotplug_event(tc->bridge.dev); > + drm_kms_helper_hotplug_event(tc->bridge.encoder->dev); > } > > regmap_write(tc->regmap, INTSTS_G, val); > diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c > index 9a2dd986afa5..8a4e64cfca1e 100644 > --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c > +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c > @@ -275,7 +275,7 @@ static int ti_sn_bridge_attach(struct drm_bridge *bridge) > .node = NULL, > }; > > - ret = drm_connector_init(bridge->dev, &pdata->connector, > + ret = drm_connector_init(bridge->encoder->dev, &pdata->connector, > &ti_sn_bridge_connector_funcs, > DRM_MODE_CONNECTOR_eDP); > if (ret) { > diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c > index aa3198dc9903..76229367e2f4 100644 > --- a/drivers/gpu/drm/bridge/ti-tfp410.c > +++ b/drivers/gpu/drm/bridge/ti-tfp410.c > @@ -135,7 +135,7 @@ static int tfp410_attach(struct drm_bridge *bridge) > > drm_connector_helper_add(&dvi->connector, > &tfp410_con_helper_funcs); > - ret = drm_connector_init_with_ddc(bridge->dev, &dvi->connector, > + ret = drm_connector_init_with_ddc(bridge->encoder->dev, &dvi->connector, > &tfp410_con_funcs, > dvi->connector_type, > dvi->ddc); > @@ -179,8 +179,8 @@ static void tfp410_hpd_work_func(struct work_struct *work) > > dvi = container_of(work, struct tfp410, hpd_work.work); > > - if (dvi->bridge.dev) > - drm_helper_hpd_irq_event(dvi->bridge.dev); > + if (dvi->bridge.encoder) > + drm_helper_hpd_irq_event(dvi->bridge.encoder->dev); > } > > static irqreturn_t tfp410_hpd_irq_thread(int irq, void *arg) > diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c > index c2cf0c90fa26..eaa20804b038 100644 > --- a/drivers/gpu/drm/drm_bridge.c > +++ b/drivers/gpu/drm/drm_bridge.c > @@ -119,13 +119,12 @@ int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge, > if (!encoder || !bridge) > return -EINVAL; > > - if (previous && (!previous->dev || previous->encoder != encoder)) > + if (previous && (previous->encoder != encoder)) > return -EINVAL; > > - if (bridge->dev) > + if (bridge->encoder) > return -EBUSY; > > - bridge->dev = encoder->dev; > bridge->encoder = encoder; > > if (previous) > @@ -137,7 +136,6 @@ int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge, > ret = bridge->funcs->attach(bridge); > if (ret < 0) { > list_del(&bridge->chain_node); > - bridge->dev = NULL; > bridge->encoder = NULL; > return ret; > } > @@ -152,14 +150,14 @@ void drm_bridge_detach(struct drm_bridge *bridge) > if (WARN_ON(!bridge)) > return; > > - if (WARN_ON(!bridge->dev)) > + if (WARN_ON(!bridge->encoder)) > return; > > if (bridge->funcs->detach) > bridge->funcs->detach(bridge); > > list_del(&bridge->chain_node); > - bridge->dev = NULL; > + bridge->encoder = NULL; > } > > /** > diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c > index a63790d32d75..17a66ef3dfd4 100644 > --- a/drivers/gpu/drm/i2c/tda998x_drv.c > +++ b/drivers/gpu/drm/i2c/tda998x_drv.c > @@ -1360,7 +1360,7 @@ static int tda998x_bridge_attach(struct drm_bridge *bridge) > { > struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge); > > - return tda998x_connector_init(priv, bridge->dev); > + return tda998x_connector_init(priv, bridge->encoder->dev); > } > > static void tda998x_bridge_detach(struct drm_bridge *bridge) > diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c > index 42fff811653e..c08d7ede9fb8 100644 > --- a/drivers/gpu/drm/mcde/mcde_dsi.c > +++ b/drivers/gpu/drm/mcde/mcde_dsi.c > @@ -846,7 +846,7 @@ static void mcde_dsi_bridge_disable(struct drm_bridge *bridge) > static int mcde_dsi_bridge_attach(struct drm_bridge *bridge) > { > struct mcde_dsi *d = bridge_to_mcde_dsi(bridge); > - struct drm_device *drm = bridge->dev; > + struct drm_device *drm = bridge->encoder->dev; > int ret; > > if (!drm_core_check_feature(drm, DRIVER_ATOMIC)) { > diff --git a/drivers/gpu/drm/msm/edp/edp_bridge.c b/drivers/gpu/drm/msm/edp/edp_bridge.c > index b65b5cc2dba2..301dd7a80bde 100644 > --- a/drivers/gpu/drm/msm/edp/edp_bridge.c > +++ b/drivers/gpu/drm/msm/edp/edp_bridge.c > @@ -47,7 +47,7 @@ static void edp_bridge_mode_set(struct drm_bridge *bridge, > const struct drm_display_mode *mode, > const struct drm_display_mode *adjusted_mode) > { > - struct drm_device *dev = bridge->dev; > + struct drm_device *dev = bridge->encoder->dev; > struct drm_connector *connector; > struct edp_bridge *edp_bridge = to_edp_bridge(bridge); > struct msm_edp *edp = edp_bridge->edp; > diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c > index ba81338a9bf8..07c098dce310 100644 > --- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c > +++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c > @@ -20,7 +20,7 @@ void msm_hdmi_bridge_destroy(struct drm_bridge *bridge) > > static void msm_hdmi_power_on(struct drm_bridge *bridge) > { > - struct drm_device *dev = bridge->dev; > + struct drm_device *dev = bridge->encoder->dev; > struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge); > struct hdmi *hdmi = hdmi_bridge->hdmi; > const struct hdmi_platform_config *config = hdmi->config; > @@ -56,7 +56,7 @@ static void msm_hdmi_power_on(struct drm_bridge *bridge) > > static void power_off(struct drm_bridge *bridge) > { > - struct drm_device *dev = bridge->dev; > + struct drm_device *dev = bridge->encoder->dev; > struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge); > struct hdmi *hdmi = hdmi_bridge->hdmi; > const struct hdmi_platform_config *config = hdmi->config; > diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c > index 2cf44b91853c..83538125a722 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_lvds.c > +++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c > @@ -622,7 +622,8 @@ static int rcar_lvds_attach(struct drm_bridge *bridge) > if (!lvds->panel) > return 0; > > - ret = drm_connector_init(bridge->dev, connector, &rcar_lvds_conn_funcs, > + ret = drm_connector_init(bridge->encoder->dev, connector, > + &rcar_lvds_conn_funcs, > DRM_MODE_CONNECTOR_LVDS); > if (ret < 0) > return ret; > diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h > index 694e153a7531..695d0898df38 100644 > --- a/include/drm/drm_bridge.h > +++ b/include/drm/drm_bridge.h > @@ -380,8 +380,6 @@ struct drm_bridge_timings { > * struct drm_bridge - central DRM bridge control structure > */ > struct drm_bridge { > - /** @dev: DRM device this bridge belongs to */ > - struct drm_device *dev; > /** @encoder: encoder to which this bridge is connected */ > struct drm_encoder *encoder; > /** @chain_node: used to form a bridge chain */ > -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer
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