| Message ID | 20230310144705.1542207-1-robh@kernel.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | drm: Use of_property_present() for testing DT property presence | expand |
Hi Rob, Thank you for the patch. On Fri, Mar 10, 2023 at 08:47:05AM -0600, Rob Herring wrote: > It is preferred to use typed property access functions (i.e. > of_property_read_<type> functions) rather than low-level > of_get_property/of_find_property functions for reading properties. As > part of this, convert of_get_property/of_find_property calls to the > recently added of_property_present() helper when we just want to test > for presence of a property and nothing more. > > Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > --- > drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 2 +- > drivers/gpu/drm/drm_mipi_dsi.c | 2 +- > drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 +- > drivers/gpu/drm/sun4i/sun4i_backend.c | 2 +- > drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 +- > drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +- > 6 files changed, 6 insertions(+), 6 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c > index 9e5f2b4dc2e5..fab139b324af 100644 > --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c > +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c > @@ -313,7 +313,7 @@ imx8qxp_pixel_link_find_next_bridge(struct imx8qxp_pixel_link *pl) > } > > /* specially select the next bridge with companion PXL2DPI */ > - if (of_find_property(remote, "fsl,companion-pxl2dpi", NULL)) > + if (of_property_present(remote, "fsl,companion-pxl2dpi")) > bridge_sel = ep_cnt; > > ep_cnt++; > diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c > index b41aaf2bb9f1..7900a4707d7c 100644 > --- a/drivers/gpu/drm/drm_mipi_dsi.c > +++ b/drivers/gpu/drm/drm_mipi_dsi.c > @@ -329,7 +329,7 @@ int mipi_dsi_host_register(struct mipi_dsi_host *host) > > for_each_available_child_of_node(host->dev->of_node, node) { > /* skip nodes without reg property */ > - if (!of_find_property(node, "reg", NULL)) > + if (!of_property_present(node, "reg")) > continue; > of_mipi_dsi_device_add(host, node); > } > diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c > index ce6b76c45b6f..2359dca80492 100644 > --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c > +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c > @@ -964,7 +964,7 @@ static void adreno_get_pwrlevels(struct device *dev, > gpu->fast_rate = 0; > > /* You down with OPP? */ > - if (!of_find_property(dev->of_node, "operating-points-v2", NULL)) > + if (!of_property_present(dev->of_node, "operating-points-v2")) > ret = adreno_get_legacy_pwrlevels(dev); > else { > ret = devm_pm_opp_of_add_table(dev); > diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c > index 38070fc261f3..b11dbd50d73e 100644 > --- a/drivers/gpu/drm/sun4i/sun4i_backend.c > +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c > @@ -792,7 +792,7 @@ static int sun4i_backend_bind(struct device *dev, struct device *master, > dev_set_drvdata(dev, backend); > spin_lock_init(&backend->frontend_lock); > > - if (of_find_property(dev->of_node, "interconnects", NULL)) { > + if (of_property_present(dev->of_node, "interconnects")) { > /* > * This assume we have the same DMA constraints for all our the > * devices in our pipeline (all the backends, but also the > diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c > index bafee05f6b24..11d5244a5aa5 100644 > --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c > +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c > @@ -391,7 +391,7 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master, > mixer->engine.ops = &sun8i_engine_ops; > mixer->engine.node = dev->of_node; > > - if (of_find_property(dev->of_node, "iommus", NULL)) { > + if (of_property_present(dev->of_node, "iommus")) { > /* > * This assume we have the same DMA constraints for > * all our the mixers in our pipeline. This sounds > diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c > index ea22c9bf223a..bec1e0cdddb3 100644 > --- a/drivers/gpu/drm/vc4/vc4_hdmi.c > +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c > @@ -3018,7 +3018,7 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi *vc4_hdmi) > struct device *dev = &pdev->dev; > int ret; > > - if (!of_find_property(dev->of_node, "interrupts", NULL)) { > + if (!of_property_present(dev->of_node, "interrupts")) { > dev_warn(dev, "'interrupts' DT property is missing, no CEC\n"); > return 0; > }
On 10/03/2023 16:47, Rob Herring wrote: > It is preferred to use typed property access functions (i.e. > of_property_read_<type> functions) rather than low-level > of_get_property/of_find_property functions for reading properties. As > part of this, convert of_get_property/of_find_property calls to the > recently added of_property_present() helper when we just want to test > for presence of a property and nothing more. > > Signed-off-by: Rob Herring <robh@kernel.org> > --- > drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 2 +- > drivers/gpu/drm/drm_mipi_dsi.c | 2 +- > drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 +- For msm part: Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > drivers/gpu/drm/sun4i/sun4i_backend.c | 2 +- > drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 +- > drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +- > 6 files changed, 6 insertions(+), 6 deletions(-)
On Fri, 2023-03-10 at 08:47 -0600, Rob Herring wrote: > It is preferred to use typed property access functions (i.e. > of_property_read_<type> functions) rather than low-level > of_get_property/of_find_property functions for reading properties. As > part of this, convert of_get_property/of_find_property calls to the > recently added of_property_present() helper when we just want to test > for presence of a property and nothing more. > > Signed-off-by: Rob Herring <robh@kernel.org> > --- > drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 2 +- Reviewed-by: Liu Ying <victor.liu@nxp.com> # i.MX bridge > drivers/gpu/drm/drm_mipi_dsi.c | 2 +- > drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 +- > drivers/gpu/drm/sun4i/sun4i_backend.c | 2 +- > drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 +- > drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +- > 6 files changed, 6 insertions(+), 6 deletions(-)
Dne petek, 10. marec 2023 ob 15:47:05 CET je Rob Herring napisal(a): > It is preferred to use typed property access functions (i.e. > of_property_read_<type> functions) rather than low-level > of_get_property/of_find_property functions for reading properties. As > part of this, convert of_get_property/of_find_property calls to the > recently added of_property_present() helper when we just want to test > for presence of a property and nothing more. > > Signed-off-by: Rob Herring <robh@kernel.org> > --- > drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 2 +- > drivers/gpu/drm/drm_mipi_dsi.c | 2 +- > drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 +- > drivers/gpu/drm/sun4i/sun4i_backend.c | 2 +- > drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 +- For sun4i: Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com> Best regards, Jernej > drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +- > 6 files changed, 6 insertions(+), 6 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c > b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c index > 9e5f2b4dc2e5..fab139b324af 100644 > --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c > +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c > @@ -313,7 +313,7 @@ imx8qxp_pixel_link_find_next_bridge(struct > imx8qxp_pixel_link *pl) } > > /* specially select the next bridge with companion PXL2DPI */ > - if (of_find_property(remote, "fsl,companion-pxl2dpi", NULL)) > + if (of_property_present(remote, "fsl,companion- pxl2dpi")) > bridge_sel = ep_cnt; > > ep_cnt++; > diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c > index b41aaf2bb9f1..7900a4707d7c 100644 > --- a/drivers/gpu/drm/drm_mipi_dsi.c > +++ b/drivers/gpu/drm/drm_mipi_dsi.c > @@ -329,7 +329,7 @@ int mipi_dsi_host_register(struct mipi_dsi_host *host) > > for_each_available_child_of_node(host->dev->of_node, node) { > /* skip nodes without reg property */ > - if (!of_find_property(node, "reg", NULL)) > + if (!of_property_present(node, "reg")) > continue; > of_mipi_dsi_device_add(host, node); > } > diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c > b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index ce6b76c45b6f..2359dca80492 > 100644 > --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c > +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c > @@ -964,7 +964,7 @@ static void adreno_get_pwrlevels(struct device *dev, > gpu->fast_rate = 0; > > /* You down with OPP? */ > - if (!of_find_property(dev->of_node, "operating-points-v2", NULL)) > + if (!of_property_present(dev->of_node, "operating-points-v2")) > ret = adreno_get_legacy_pwrlevels(dev); > else { > ret = devm_pm_opp_of_add_table(dev); > diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c > b/drivers/gpu/drm/sun4i/sun4i_backend.c index 38070fc261f3..b11dbd50d73e > 100644 > --- a/drivers/gpu/drm/sun4i/sun4i_backend.c > +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c > @@ -792,7 +792,7 @@ static int sun4i_backend_bind(struct device *dev, struct > device *master, dev_set_drvdata(dev, backend); > spin_lock_init(&backend->frontend_lock); > > - if (of_find_property(dev->of_node, "interconnects", NULL)) { > + if (of_property_present(dev->of_node, "interconnects")) { > /* > * This assume we have the same DMA constraints for all our the > * devices in our pipeline (all the backends, but also the > diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c > b/drivers/gpu/drm/sun4i/sun8i_mixer.c index bafee05f6b24..11d5244a5aa5 > 100644 > --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c > +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c > @@ -391,7 +391,7 @@ static int sun8i_mixer_bind(struct device *dev, struct > device *master, mixer->engine.ops = &sun8i_engine_ops; > mixer->engine.node = dev->of_node; > > - if (of_find_property(dev->of_node, "iommus", NULL)) { > + if (of_property_present(dev->of_node, "iommus")) { > /* > * This assume we have the same DMA constraints for > * all our the mixers in our pipeline. This sounds > diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c > index ea22c9bf223a..bec1e0cdddb3 100644 > --- a/drivers/gpu/drm/vc4/vc4_hdmi.c > +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c > @@ -3018,7 +3018,7 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi > *vc4_hdmi) struct device *dev = &pdev->dev; > int ret; > > - if (!of_find_property(dev->of_node, "interrupts", NULL)) { > + if (!of_property_present(dev->of_node, "interrupts")) { > dev_warn(dev, "'interrupts' DT property is missing, no CEC\n"); > return 0; > }
diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c index 9e5f2b4dc2e5..fab139b324af 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c @@ -313,7 +313,7 @@ imx8qxp_pixel_link_find_next_bridge(struct imx8qxp_pixel_link *pl) } /* specially select the next bridge with companion PXL2DPI */ - if (of_find_property(remote, "fsl,companion-pxl2dpi", NULL)) + if (of_property_present(remote, "fsl,companion-pxl2dpi")) bridge_sel = ep_cnt; ep_cnt++; diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index b41aaf2bb9f1..7900a4707d7c 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -329,7 +329,7 @@ int mipi_dsi_host_register(struct mipi_dsi_host *host) for_each_available_child_of_node(host->dev->of_node, node) { /* skip nodes without reg property */ - if (!of_find_property(node, "reg", NULL)) + if (!of_property_present(node, "reg")) continue; of_mipi_dsi_device_add(host, node); } diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index ce6b76c45b6f..2359dca80492 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -964,7 +964,7 @@ static void adreno_get_pwrlevels(struct device *dev, gpu->fast_rate = 0; /* You down with OPP? */ - if (!of_find_property(dev->of_node, "operating-points-v2", NULL)) + if (!of_property_present(dev->of_node, "operating-points-v2")) ret = adreno_get_legacy_pwrlevels(dev); else { ret = devm_pm_opp_of_add_table(dev); diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c index 38070fc261f3..b11dbd50d73e 100644 --- a/drivers/gpu/drm/sun4i/sun4i_backend.c +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c @@ -792,7 +792,7 @@ static int sun4i_backend_bind(struct device *dev, struct device *master, dev_set_drvdata(dev, backend); spin_lock_init(&backend->frontend_lock); - if (of_find_property(dev->of_node, "interconnects", NULL)) { + if (of_property_present(dev->of_node, "interconnects")) { /* * This assume we have the same DMA constraints for all our the * devices in our pipeline (all the backends, but also the diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c index bafee05f6b24..11d5244a5aa5 100644 --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c @@ -391,7 +391,7 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master, mixer->engine.ops = &sun8i_engine_ops; mixer->engine.node = dev->of_node; - if (of_find_property(dev->of_node, "iommus", NULL)) { + if (of_property_present(dev->of_node, "iommus")) { /* * This assume we have the same DMA constraints for * all our the mixers in our pipeline. This sounds diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index ea22c9bf223a..bec1e0cdddb3 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -3018,7 +3018,7 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi *vc4_hdmi) struct device *dev = &pdev->dev; int ret; - if (!of_find_property(dev->of_node, "interrupts", NULL)) { + if (!of_property_present(dev->of_node, "interrupts")) { dev_warn(dev, "'interrupts' DT property is missing, no CEC\n"); return 0; }
It is preferred to use typed property access functions (i.e. of_property_read_<type> functions) rather than low-level of_get_property/of_find_property functions for reading properties. As part of this, convert of_get_property/of_find_property calls to the recently added of_property_present() helper when we just want to test for presence of a property and nothing more. Signed-off-by: Rob Herring <robh@kernel.org> --- drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 2 +- drivers/gpu/drm/drm_mipi_dsi.c | 2 +- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 +- drivers/gpu/drm/sun4i/sun4i_backend.c | 2 +- drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 +- drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-)