[PATCH 03/20] OMAP: OMAPFB: add omapdss device

From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
To: linux-fbdev-devel@lists.sourceforge.net
Cc: linux-omap@vger.kernel.org, Tomi Valkeinen <tomi.valkeinen@nokia.com>
Subject: [PATCH 03/20] OMAP: OMAPFB: add omapdss device
Date: Fri,  7 Aug 2009 15:27:41 +0300	[thread overview]
Message-ID: <1249648078-7780-4-git-send-email-tomi.valkeinen@nokia.com> (raw)
In-Reply-To: <1249648078-7780-3-git-send-email-tomi.valkeinen@nokia.com>

The upcoming new display subsystem driver is divided to two devices,
omapdss and omapfb, of which omapdss handles the actual hardware.

This patch adds a dummy omapdss platform device for the current omapfb
driver, which is then used to get the clocks. This will make it possible
for the current and the new display drivers to co-exist.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/clock24xx.c |    8 ++++----
 arch/arm/mach-omap2/clock34xx.c |   10 +++++-----
 drivers/video/omap/dispc.c      |   19 ++++++++++++++++---
 3 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c
index 44de027..402a3d4 100644
--- a/arch/arm/mach-omap2/clock24xx.c
+++ b/arch/arm/mach-omap2/clock24xx.c
@@ -103,10 +103,10 @@ static struct omap_clk omap24xx_clks[] = {
 	CLK(NULL,	"mdm_ick",	&mdm_ick,	CK_243X),
 	CLK(NULL,	"mdm_osc_ck",	&mdm_osc_ck,	CK_243X),
 	/* DSS domain clocks */
-	CLK("omapfb",	"ick",		&dss_ick,	CK_243X | CK_242X),
-	CLK("omapfb",	"dss1_fck",	&dss1_fck,	CK_243X | CK_242X),
-	CLK("omapfb",	"dss2_fck",	&dss2_fck,	CK_243X | CK_242X),
-	CLK("omapfb",	"tv_fck",	&dss_54m_fck,	CK_243X | CK_242X),
+	CLK("omapdss",	"ick",		&dss_ick,	CK_243X | CK_242X),
+	CLK("omapdss",	"dss1_fck",	&dss1_fck,	CK_243X | CK_242X),
+	CLK("omapdss",	"dss2_fck",	&dss2_fck,	CK_243X | CK_242X),
+	CLK("omapdss",	"tv_fck",	&dss_54m_fck,	CK_243X | CK_242X),
 	/* L3 domain clocks */
 	CLK(NULL,	"core_l3_ck",	&core_l3_ck,	CK_243X | CK_242X),
 	CLK(NULL,	"ssi_fck",	&ssi_ssr_sst_fck, CK_243X | CK_242X),
diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
index 045da92..dd7bba2 100644
--- a/arch/arm/mach-omap2/clock34xx.c
+++ b/arch/arm/mach-omap2/clock34xx.c
@@ -200,11 +200,11 @@ static struct omap_clk omap34xx_clks[] = {
 	CLK("omap_rng",	"ick",		&rng_ick,	CK_343X),
 	CLK(NULL,	"sha11_ick",	&sha11_ick,	CK_343X),
 	CLK(NULL,	"des1_ick",	&des1_ick,	CK_343X),
-	CLK("omapfb",	"dss1_fck",	&dss1_alwon_fck, CK_343X),
-	CLK("omapfb",	"tv_fck",	&dss_tv_fck,	CK_343X),
-	CLK("omapfb",	"video_fck",	&dss_96m_fck,	CK_343X),
-	CLK("omapfb",	"dss2_fck",	&dss2_alwon_fck, CK_343X),
-	CLK("omapfb",	"ick",		&dss_ick,	CK_343X),
+	CLK("omapdss",	"dss1_fck",	&dss1_alwon_fck, CK_343X),
+	CLK("omapdss",	"tv_fck",	&dss_tv_fck,	CK_343X),
+	CLK("omapdss",	"video_fck",	&dss_96m_fck,	CK_343X),
+	CLK("omapdss",	"dss2_fck",	&dss2_alwon_fck, CK_343X),
+	CLK("omapdss",	"ick",		&dss_ick,	CK_343X),
 	CLK(NULL,	"cam_mclk",	&cam_mclk,	CK_343X),
 	CLK(NULL,	"cam_ick",	&cam_ick,	CK_343X),
 	CLK(NULL,	"csi2_96m_fck",	&csi2_96m_fck,	CK_343X),
diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c
index 06438d0..cde3d18 100644
--- a/drivers/video/omap/dispc.c
+++ b/drivers/video/omap/dispc.c
@@ -24,6 +24,7 @@
 #include <linux/vmalloc.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/platform_device.h>
 
 #include <mach/sram.h>
 #include <mach/board.h>
@@ -188,6 +189,11 @@ static struct {
 	struct omapfb_color_key	color_key;
 } dispc;
 
+static struct platform_device omapdss_device = {
+	.name		= "omapdss",
+	.id		= -1,
+};
+
 static void enable_lcd_clocks(int enable);
 
 static void inline dispc_write_reg(int idx, u32 val)
@@ -907,20 +913,20 @@ static irqreturn_t omap_dispc_irq_handler(int irq, void *dev)
 
 static int get_dss_clocks(void)
 {
-	dispc.dss_ick = clk_get(dispc.fbdev->dev, "ick");
+	dispc.dss_ick = clk_get(&omapdss_device.dev, "ick");
 	if (IS_ERR(dispc.dss_ick)) {
 		dev_err(dispc.fbdev->dev, "can't get ick\n");
 		return PTR_ERR(dispc.dss_ick);
 	}
 
-	dispc.dss1_fck = clk_get(dispc.fbdev->dev, "dss1_fck");
+	dispc.dss1_fck = clk_get(&omapdss_device.dev, "dss1_fck");
 	if (IS_ERR(dispc.dss1_fck)) {
 		dev_err(dispc.fbdev->dev, "can't get dss1_fck\n");
 		clk_put(dispc.dss_ick);
 		return PTR_ERR(dispc.dss1_fck);
 	}
 
-	dispc.dss_54m_fck = clk_get(dispc.fbdev->dev, "tv_fck");
+	dispc.dss_54m_fck = clk_get(&omapdss_device.dev, "tv_fck");
 	if (IS_ERR(dispc.dss_54m_fck)) {
 		dev_err(dispc.fbdev->dev, "can't get tv_fck\n");
 		clk_put(dispc.dss_ick);
@@ -1371,6 +1377,12 @@ static int omap_dispc_init(struct omapfb_device *fbdev, int ext_mode,
 	int skip_init = 0;
 	int i;
 
+	r = platform_device_register(&omapdss_device);
+	if (r) {
+		dev_err(fbdev->dev, "can't register omapdss device\n");
+		return r;
+	}
+
 	memset(&dispc, 0, sizeof(dispc));
 
 	dispc.base = ioremap(DISPC_BASE, SZ_1K);
@@ -1508,6 +1520,7 @@ static void omap_dispc_cleanup(void)
 	free_irq(INT_24XX_DSS_IRQ, dispc.fbdev);
 	put_dss_clocks();
 	iounmap(dispc.base);
+	platform_device_unregister(&omapdss_device);
 }
 
 const struct lcd_ctrl omap2_int_ctrl = {
-- 
1.6.4

