| Message ID | 20170129132444.25251-22-john@metanate.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sun, Jan 29, 2017 at 01:24:41PM +0000, John Keeping wrote: > This ensures that the output resolution is known before fbcon loads. > > Signed-off-by: John Keeping <john@metanate.com> > --- > Unchanged in v3 > Unchanged in v2 > > drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 11 +++++++++-- > 1 file changed, 9 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > index f5b15377ef85..5bad92e2370e 100644 > --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > @@ -1176,10 +1176,17 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, > > dsi->dsi_host.ops = &dw_mipi_dsi_host_ops; > dsi->dsi_host.dev = dev; > - return mipi_dsi_host_register(&dsi->dsi_host); > + ret = mipi_dsi_host_register(&dsi->dsi_host); > + if (!ret && !dsi->panel) { > + mipi_dsi_host_unregister(&dsi->dsi_host); > + drm_encoder_cleanup(&dsi->encoder); > + drm_connector_cleanup(&dsi->connector); Move the host registration up before dw_mipi_dsi_register() to avoid having to clean up the encoder and connector? > + ret = -EPROBE_DEFER; > + } > > err_pllref: > - clk_disable_unprepare(dsi->pllref_clk); > + if (ret) I personally think it's cleaner to explicitly goto in the error conditional (or in this case, the defer conditional) and have a return 0; right before the err_* labels. Then you don't need to worry about a) checking ret in all of your cleanups and b) someone adding code above the labels that you don't intend to run. Sean > + clk_disable_unprepare(dsi->pllref_clk); > return ret; > } > > -- > 2.11.0.197.gb556de5.dirty > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel
On Tue, 31 Jan 2017 14:21:17 -0500, Sean Paul wrote: > On Sun, Jan 29, 2017 at 01:24:41PM +0000, John Keeping wrote: > > This ensures that the output resolution is known before fbcon loads. > > > > Signed-off-by: John Keeping <john@metanate.com> > > --- > > Unchanged in v3 > > Unchanged in v2 > > > > drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 11 +++++++++-- > > 1 file changed, 9 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > > index f5b15377ef85..5bad92e2370e 100644 > > --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > > +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > > @@ -1176,10 +1176,17 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, > > > > dsi->dsi_host.ops = &dw_mipi_dsi_host_ops; > > dsi->dsi_host.dev = dev; > > - return mipi_dsi_host_register(&dsi->dsi_host); > > + ret = mipi_dsi_host_register(&dsi->dsi_host); > > + if (!ret && !dsi->panel) { > > + mipi_dsi_host_unregister(&dsi->dsi_host); > > + drm_encoder_cleanup(&dsi->encoder); > > + drm_connector_cleanup(&dsi->connector); > > Move the host registration up before dw_mipi_dsi_register() to avoid > having to clean up the encoder and connector? No, mipi_dsi_host_register() has to be called after the connector is registered because it is likely to result in a call to dw_mipi_dsi_host_attach() which attaches a panel to the connector. > > + ret = -EPROBE_DEFER; > > + } > > > > err_pllref: > > - clk_disable_unprepare(dsi->pllref_clk); > > + if (ret) > > I personally think it's cleaner to explicitly goto in the error conditional (or > in this case, the defer conditional) and have a return 0; right before the err_* > labels. Then you don't need to worry about a) checking ret in all of your > cleanups and b) someone adding code above the labels that you don't intend to > run. Agreed. I'll change this to use a goto if we hit the EPROBE_DEFER case and keep all the cleanup together. > > + clk_disable_unprepare(dsi->pllref_clk); > > return ret; > > }
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index f5b15377ef85..5bad92e2370e 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -1176,10 +1176,17 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, dsi->dsi_host.ops = &dw_mipi_dsi_host_ops; dsi->dsi_host.dev = dev; - return mipi_dsi_host_register(&dsi->dsi_host); + ret = mipi_dsi_host_register(&dsi->dsi_host); + if (!ret && !dsi->panel) { + mipi_dsi_host_unregister(&dsi->dsi_host); + drm_encoder_cleanup(&dsi->encoder); + drm_connector_cleanup(&dsi->connector); + ret = -EPROBE_DEFER; + } err_pllref: - clk_disable_unprepare(dsi->pllref_clk); + if (ret) + clk_disable_unprepare(dsi->pllref_clk); return ret; }
This ensures that the output resolution is known before fbcon loads. Signed-off-by: John Keeping <john@metanate.com> --- Unchanged in v3 Unchanged in v2 drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)