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/ v3: - resend as part of drm_bridge_init() series v2: - fix checkpatch complaint about unnecessary parentheses in drm_bridge.c Cc: Daniel Vetter <daniel@xxxxxxxx> Suggested-by: Thomas Zimmermann <tzimmermann@xxxxxxx> Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx> Signed-off-by: Mihail Atanassov <mihail.atanassov@xxxxxxx> --- 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..258094169706 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 32e94bcb4a69..276a77c020c7 100644 --- a/drivers/gpu/drm/mcde/mcde_dsi.c +++ b/drivers/gpu/drm/mcde/mcde_dsi.c @@ -989,7 +989,7 @@ 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 */ -- 2.24.0
