From 7fa5047a436ba27696e344d974811d9ea07ba249 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Fri, 10 Mar 2023 08:47:05 -0600 Subject: [PATCH] drm: Use of_property_present() for testing DT property presence It is preferred to use typed property access functions (i.e. of_property_read_ 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. Reviewed-by: Jernej Skrabec Reviewed-by: Liu Ying # i.MX bridge Reviewed-by: Dmitry Baryshkov Reviewed-by: Laurent Pinchart Link: https://lore.kernel.org/r/20230310144705.1542207-1-robh@kernel.org Signed-off-by: Rob Herring --- 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/tiny/simpledrm.c | 2 +- drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c index 25dc82a..ed8b7a4 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 b41aaf2..7900a47 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 ce6b76c..2359dca 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 38070fc..b11dbd5 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 bafee05..11d5244 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/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c index c38d858..25e11ef 100644 --- a/drivers/gpu/drm/tiny/simpledrm.c +++ b/drivers/gpu/drm/tiny/simpledrm.c @@ -204,7 +204,7 @@ simplefb_get_memory_of(struct drm_device *dev, struct device_node *of_node) if (err) return ERR_PTR(err); - if (of_get_property(of_node, "reg", NULL)) + if (of_property_present(of_node, "reg")) drm_warn(dev, "preferring \"memory-region\" over \"reg\" property\n"); return res; diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index d30e454..464c3cc 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -3020,7 +3020,7 @@ 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; } -- 2.7.4