diff options
author | Philipp Zabel <p.zabel@pengutronix.de> | 2016-05-03 16:47:24 +0300 |
---|---|---|
committer | Inki Dae <daeinki@gmail.com> | 2016-05-10 17:11:45 +0300 |
commit | fb38b1f60865567e74aeb540038fbaaa1144c432 (patch) | |
tree | 08e7e436207aaf8f5ff8f2052570903569a2d282 /drivers/gpu/drm/exynos | |
parent | 562d54567f56a6228f53c2affa215dcff0cb1e3c (diff) | |
download | linux-fb38b1f60865567e74aeb540038fbaaa1144c432.tar.xz |
drm/exynos/dpi: use of_graph_get_endpoint_by_regs helper
This allows to remove the local of_graph_get_port_by_reg(),
of_graph_get_endpoint_by_reg(), of_get_child_by_name_reg(),
and of_graph_get_remote_port_parent() functions.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos')
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_dpi.c | 69 |
1 files changed, 2 insertions, 67 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c index 75e570f45259..5e38e749ac17 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c @@ -15,6 +15,7 @@ #include <drm/drm_panel.h> #include <drm/drm_atomic_helper.h> +#include <linux/of_graph.h> #include <linux/regulator/consumer.h> #include <video/of_videomode.h> @@ -164,67 +165,6 @@ static const struct drm_encoder_funcs exynos_dpi_encoder_funcs = { .destroy = drm_encoder_cleanup, }; -/* of_* functions will be removed after merge of of_graph patches */ -static struct device_node * -of_get_child_by_name_reg(struct device_node *parent, const char *name, u32 reg) -{ - struct device_node *np; - - for_each_child_of_node(parent, np) { - u32 r; - - if (!np->name || of_node_cmp(np->name, name)) - continue; - - if (of_property_read_u32(np, "reg", &r) < 0) - r = 0; - - if (reg == r) - break; - } - - return np; -} - -static struct device_node *of_graph_get_port_by_reg(struct device_node *parent, - u32 reg) -{ - struct device_node *ports, *port; - - ports = of_get_child_by_name(parent, "ports"); - if (ports) - parent = ports; - - port = of_get_child_by_name_reg(parent, "port", reg); - - of_node_put(ports); - - return port; -} - -static struct device_node * -of_graph_get_endpoint_by_reg(struct device_node *port, u32 reg) -{ - return of_get_child_by_name_reg(port, "endpoint", reg); -} - -static struct device_node * -of_graph_get_remote_port_parent(const struct device_node *node) -{ - struct device_node *np; - unsigned int depth; - - np = of_parse_phandle(node, "remote-endpoint", 0); - - /* Walk 3 levels up only if there is 'ports' node. */ - for (depth = 3; depth && np; depth--) { - np = of_get_next_parent(np); - if (depth == 2 && of_node_cmp(np->name, "ports")) - break; - } - return np; -} - enum { FIMD_PORT_IN0, FIMD_PORT_IN1, @@ -237,12 +177,7 @@ static struct device_node *exynos_dpi_of_find_panel_node(struct device *dev) { struct device_node *np, *ep; - np = of_graph_get_port_by_reg(dev->of_node, FIMD_PORT_RGB); - if (!np) - return NULL; - - ep = of_graph_get_endpoint_by_reg(np, 0); - of_node_put(np); + ep = of_graph_get_endpoint_by_regs(dev->of_node, FIMD_PORT_RGB, 0); if (!ep) return NULL; |