diff options
| -rw-r--r-- | arch/arm/mach-omap2/board-generic.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/common.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/display.c | 62 |
3 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index fcb7f5c271c9..0db371a88e5e 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -35,6 +35,8 @@ static struct of_device_id omap_dt_match_table[] __initdata = { static void __init omap_generic_init(void) { + omapdss_early_init_of(); + pdata_quirks_init(omap_dt_match_table); omapdss_init_of(); diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index 1864282dbddf..d88aff7baff8 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -316,6 +316,7 @@ extern int omap_dss_reset(struct omap_hwmod *); int omap_clk_init(void); int __init omapdss_init_of(void); +void __init omapdss_early_init_of(void); #endif /* __ASSEMBLER__ */ #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */ diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index a83ada38cae2..cf0cb35fa972 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -25,6 +25,7 @@ #include <linux/delay.h> #include <linux/of.h> #include <linux/of_platform.h> +#include <linux/slab.h> #include <video/omapdss.h> #include "omap_hwmod.h" @@ -555,6 +556,67 @@ int omap_dss_reset(struct omap_hwmod *oh) return r; } +/* list of 'compatible' nodes to convert to omapdss specific */ +static const char * const dss_compat_conv_list[] __initconst = { + "composite-connector", + "dvi-connector", + "hdmi-connector", + "panel-dpi", + "panel-dsi-cm", + "sony,acx565akm", + "svideo-connector", + "ti,tfp410", + "ti,tpd12s015", +}; + +/* prepend compatible string with "omapdss," */ +static __init void omapdss_omapify_node(struct device_node *node, + const char *compat) +{ + char *new_compat; + struct property *prop; + + new_compat = kasprintf(GFP_KERNEL, "omapdss,%s", compat); + + prop = kzalloc(sizeof(*prop), GFP_KERNEL); + + if (!prop) { + pr_err("omapdss_omapify_node: kzalloc failed\n"); + return; + } + + prop->name = "compatible"; + prop->value = new_compat; + prop->length = strlen(new_compat) + 1; + + of_update_property(node, prop); +} + +/* + * As omapdss panel drivers are omapdss specific, but we want to define the + * DT-data in generic manner, we convert the compatible strings of the panel + * nodes from "panel-foo" to "omapdss,panel-foo". This way we can have both + * correct DT data and omapdss specific drivers. + * + * When we get generic panel drivers to the kernel, this will be removed. + */ +void __init omapdss_early_init_of(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(dss_compat_conv_list); ++i) { + const char *compat = dss_compat_conv_list[i]; + struct device_node *node = NULL; + + while ((node = of_find_compatible_node(node, NULL, compat))) { + if (!of_device_is_available(node)) + continue; + + omapdss_omapify_node(node, compat); + } + } +} + struct device_node * __init omapdss_find_dss_of_node(void) { struct device_node *node; |