Merge branch '3.15/dss-dt' into 3.15/fbdev

Merge OMAP DSS DT support

8 files changed, 201 insertions, 16 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 653b489479e0..0af7ca02314d 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -50,11 +50,12 @@ config SOC_OMAP5
 	bool "TI OMAP5"
 	depends on ARCH_MULTI_V7
 	select ARCH_OMAP2PLUS
+	select ARCH_HAS_OPP
 	select ARM_CPU_SUSPEND if PM
 	select ARM_GIC
 	select CPU_V7
 	select HAVE_ARM_SCU if SMP
-	select HAVE_ARM_TWD if LOCAL_TIMERS
+	select HAVE_ARM_TWD if SMP
 	select HAVE_SMP
 	select HAVE_ARM_ARCH_TIMER
 	select ARM_ERRATA_798181 if SMP
@@ -63,6 +64,7 @@ config SOC_AM33XX
 	bool "TI AM33XX"
 	depends on ARCH_MULTI_V7
 	select ARCH_OMAP2PLUS
+	select ARCH_HAS_OPP
 	select ARM_CPU_SUSPEND if PM
 	select CPU_V7
 	select MULTI_IRQ_HANDLER
@@ -72,6 +74,7 @@ config SOC_AM43XX
 	depends on ARCH_MULTI_V7
 	select CPU_V7
 	select ARCH_OMAP2PLUS
+	select ARCH_HAS_OPP
 	select MULTI_IRQ_HANDLER
 	select ARM_GIC
 	select MACH_OMAP_GENERIC
@@ -80,6 +83,7 @@ config SOC_DRA7XX
 	bool "TI DRA7XX"
 	depends on ARCH_MULTI_V7
 	select ARCH_OMAP2PLUS
+	select ARCH_HAS_OPP
 	select ARM_CPU_SUSPEND if PM
 	select ARM_GIC
 	select CPU_V7
@@ -268,9 +272,6 @@ config MACH_OMAP_3430SDP
 	default y
 	select OMAP_PACKAGE_CBB
 
-config MACH_NOKIA_N800
-       bool
-
 config MACH_NOKIA_N810
        bool
 
@@ -281,7 +282,6 @@ config MACH_NOKIA_N8X0
 	bool "Nokia N800/N810"
 	depends on SOC_OMAP2420
 	default y
-	select MACH_NOKIA_N800
 	select MACH_NOKIA_N810
 	select MACH_NOKIA_N810_WIMAX
 	select OMAP_PACKAGE_ZAC
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 8e3daa11602b..0db371a88e5e 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -35,7 +35,11 @@ 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();
 }
 
 #ifdef CONFIG_SOC_OMAP2420
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index a6aae300542c..d88aff7baff8 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -315,5 +315,8 @@ extern int omap_dss_reset(struct omap_hwmod *);
 /* SoC specific clock initializer */
 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 93ebb4007ea9..16d33d831287 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -23,6 +23,9 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #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"
@@ -551,3 +554,166 @@ 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;
+
+	node = of_find_compatible_node(NULL, NULL, "ti,omap2-dss");
+	if (node)
+		return node;
+
+	node = of_find_compatible_node(NULL, NULL, "ti,omap3-dss");
+	if (node)
+		return node;
+
+	node = of_find_compatible_node(NULL, NULL, "ti,omap4-dss");
+	if (node)
+		return node;
+
+	return NULL;
+}
+
+int __init omapdss_init_of(void)
+{
+	int r;
+	enum omapdss_version ver;
+	struct device_node *node;
+	struct platform_device *pdev;
+
+	static struct omap_dss_board_info board_data = {
+		.dsi_enable_pads = omap_dsi_enable_pads,
+		.dsi_disable_pads = omap_dsi_disable_pads,
+		.set_min_bus_tput = omap_dss_set_min_bus_tput,
+	};
+
+	/* only create dss helper devices if dss is enabled in the .dts */
+
+	node = omapdss_find_dss_of_node();
+	if (!node)
+		return 0;
+
+	if (!of_device_is_available(node))
+		return 0;
+
+	ver = omap_display_get_version();
+
+	if (ver == OMAPDSS_VER_UNKNOWN) {
+		pr_err("DSS not supported on this SoC\n");
+		return -ENODEV;
+	}
+
+	pdev = of_find_device_by_node(node);
+
+	if (!pdev) {
+		pr_err("Unable to find DSS platform device\n");
+		return -ENODEV;
+	}
+
+	r = of_platform_populate(node, NULL, NULL, &pdev->dev);
+	if (r) {
+		pr_err("Unable to populate DSS submodule devices\n");
+		return r;
+	}
+
+	board_data.version = ver;
+
+	omap_display_device.dev.platform_data = &board_data;
+
+	r = platform_device_register(&omap_display_device);
+	if (r < 0) {
+		pr_err("Unable to register omapdss device\n");
+		return r;
+	}
+
+	/* create DRM device */
+	r = omap_init_drm();
+	if (r < 0) {
+		pr_err("Unable to register omapdrm device\n");
+		return r;
+	}
+
+	/* create vrfb device */
+	r = omap_init_vrfb();
+	if (r < 0) {
+		pr_err("Unable to register omapvrfb device\n");
+		return r;
+	}
+
+	/* create FB device */
+	r = omap_init_fb();
+	if (r < 0) {
+		pr_err("Unable to register omapfb device\n");
+		return r;
+	}
+
+	/* create V4L2 display device */
+	r = omap_init_vout();
+	if (r < 0) {
+		pr_err("Unable to register omap_vout device\n");
+		return r;
+	}
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap2/display.h b/arch/arm/mach-omap2/display.h
index f3d2ce4bc262..7375854b16c7 100644
--- a/arch/arm/mach-omap2/display.h
+++ b/arch/arm/mach-omap2/display.h
@@ -30,4 +30,7 @@ int omap_init_drm(void);
 int omap_init_vrfb(void);
 int omap_init_fb(void);
 int omap_init_vout(void);
+
+struct device_node * __init omapdss_find_dss_of_node(void);
+
 #endif
diff --git a/arch/arm/mach-omap2/dss-common.c b/arch/arm/mach-omap2/dss-common.c
index dadccc91488c..ab8cf26d5096 100644
--- a/arch/arm/mach-omap2/dss-common.c
+++ b/arch/arm/mach-omap2/dss-common.c
@@ -33,6 +33,7 @@
 #include "soc.h"
 #include "dss-common.h"
 #include "mux.h"
+#include "display.h"
 
 #define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
@@ -101,6 +102,12 @@ static struct omap_dss_board_info omap4_panda_dss_data = {
 
 void __init omap4_panda_display_init_of(void)
 {
+	struct device_node *node;
+
+	node = omapdss_find_dss_of_node();
+	if (node && of_device_is_available(node))
+		return;
+
 	omap_display_init(&omap4_panda_dss_data);
 
 	platform_device_register(&omap4_panda_tfp410_device);
@@ -194,6 +201,11 @@ static struct omap_dss_board_info sdp4430_dss_data = {
 void __init omap_4430sdp_display_init_of(void)
 {
 	int r;
+	struct device_node *node;
+
+	node = omapdss_find_dss_of_node();
+	if (node && of_device_is_available(node))
+		return;
 
 	r = gpio_request_one(DISPLAY_SEL_GPIO, GPIOF_OUT_INIT_HIGH,
 			"display_sel");
@@ -252,6 +264,12 @@ static struct omap_dss_board_info igep2_dss_data = {
 
 void __init omap3_igep2_display_init_of(void)
 {
+	struct device_node *node;
+
+	node = omapdss_find_dss_of_node();
+	if (node && of_device_is_available(node))
+		return;
+
 	omap_display_init(&igep2_dss_data);
 
 	platform_device_register(&omap3_igep2_tfp410_device);
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index d24926e6340f..ab43755364f5 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -1339,7 +1339,7 @@ static void __maybe_unused gpmc_read_timings_dt(struct device_node *np,
 		of_property_read_bool(np, "gpmc,time-para-granularity");
 }
 
-#ifdef CONFIG_MTD_NAND
+#if IS_ENABLED(CONFIG_MTD_NAND)
 
 static const char * const nand_xfer_types[] = {
 	[NAND_OMAP_PREFETCH_POLLED]		= "prefetch-polled",
@@ -1429,7 +1429,7 @@ static int gpmc_probe_nand_child(struct platform_device *pdev,
 }
 #endif
 
-#ifdef CONFIG_MTD_ONENAND
+#if IS_ENABLED(CONFIG_MTD_ONENAND)
 static int gpmc_probe_onenand_child(struct platform_device *pdev,
 				 struct device_node *child)
 {
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index d408b15b4fbf..af432b191255 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -179,15 +179,6 @@ static struct map_desc omap34xx_io_desc[] __initdata = {
 		.length		= L4_EMU_34XX_SIZE,
 		.type		= MT_DEVICE
 	},
-#if defined(CONFIG_DEBUG_LL) &&							\
-	(defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3))
-	{
-		.virtual	= ZOOM_UART_VIRT,
-		.pfn		= __phys_to_pfn(ZOOM_UART_BASE),
-		.length		= SZ_1M,
-		.type		= MT_DEVICE
-	},
-#endif
 };
 #endif