OMAP: DSS2: Have separate irq handlers for DISPC and DSI

Currently, the core DSS platform device requests for an irq line for OMAP2 and
OMAP3. Make DISPC and DSI platform devices request for a shared IRQ line.

On OMAP3, the logical OR of DSI and DISPC interrupt lines goes to the MPU. There
is a register DSS_IRQSTATUS which tells if the interrupt came from DISPC or DSI.

On OMAP2, there is no DSI, only DISPC interrupts goto the MPU. There is no
DSS_IRQSTATUS register.

Hence, it makes more sense to have separate irq handlers corresponding to the
DSS sub modules instead of having a common handler.

Since on OMAP3 the logical OR of the lines goes to MPU, the irq line is shared
among the IRQ handlers.

The hwmod irq info has been removed for DSS to DISPC and DSI for OMAP2 and OMAP3
hwmod databases. The Probes of DISPC and DSI now request for irq handlers.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 12 insertions, 9 deletions

diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 4ed48cab06f..f997b0e9759 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -1503,11 +1503,6 @@ static struct omap_hwmod_class omap3xxx_dss_hwmod_class = {
 	.sysc = &omap3xxx_dss_sysc,
 };
 
-/* dss */
-static struct omap_hwmod_irq_info omap3xxx_dss_irqs[] = {
-	{ .irq = 25 },
-};
-
 static struct omap_hwmod_dma_info omap3xxx_dss_sdma_chs[] = {
 	{ .name = "dispc", .dma_req = 5 },
 	{ .name = "dsi1", .dma_req = 74 },
@@ -1579,8 +1574,6 @@ static struct omap_hwmod omap3430es1_dss_core_hwmod = {
 	.name		= "dss_core",
 	.class		= &omap3xxx_dss_hwmod_class,
 	.main_clk	= "dss1_alwon_fck", /* instead of dss_fck */
-	.mpu_irqs	= omap3xxx_dss_irqs,
-	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_dss_irqs),
 	.sdma_reqs	= omap3xxx_dss_sdma_chs,
 	.sdma_reqs_cnt	= ARRAY_SIZE(omap3xxx_dss_sdma_chs),
 
@@ -1607,8 +1600,6 @@ static struct omap_hwmod omap3xxx_dss_core_hwmod = {
 	.name		= "dss_core",
 	.class		= &omap3xxx_dss_hwmod_class,
 	.main_clk	= "dss1_alwon_fck", /* instead of dss_fck */
-	.mpu_irqs	= omap3xxx_dss_irqs,
-	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_dss_irqs),
 	.sdma_reqs	= omap3xxx_dss_sdma_chs,
 	.sdma_reqs_cnt	= ARRAY_SIZE(omap3xxx_dss_sdma_chs),
 
@@ -1654,6 +1645,10 @@ static struct omap_hwmod_class omap3xxx_dispc_hwmod_class = {
 	.sysc = &omap3xxx_dispc_sysc,
 };
 
+static struct omap_hwmod_irq_info omap3xxx_dispc_irqs[] = {
+	{ .irq = 25 },
+};
+
 static struct omap_hwmod_addr_space omap3xxx_dss_dispc_addrs[] = {
 	{
 		.pa_start	= 0x48050400,
@@ -1687,6 +1682,8 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_dispc_slaves[] = {
 static struct omap_hwmod omap3xxx_dss_dispc_hwmod = {
 	.name		= "dss_dispc",
 	.class		= &omap3xxx_dispc_hwmod_class,
+	.mpu_irqs	= omap3xxx_dispc_irqs,
+	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_dispc_irqs),
 	.main_clk	= "dss1_alwon_fck",
 	.prcm		= {
 		.omap2 = {
@@ -1712,6 +1709,10 @@ static struct omap_hwmod_class omap3xxx_dsi_hwmod_class = {
 	.name = "dsi",
 };
 
+static struct omap_hwmod_irq_info omap3xxx_dsi1_irqs[] = {
+	{ .irq = 25 },
+};
+
 /* dss_dsi1 */
 static struct omap_hwmod_addr_space omap3xxx_dss_dsi1_addrs[] = {
 	{
@@ -1745,6 +1746,8 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_dsi1_slaves[] = {
 static struct omap_hwmod omap3xxx_dss_dsi1_hwmod = {
 	.name		= "dss_dsi1",
 	.class		= &omap3xxx_dsi_hwmod_class,
+	.mpu_irqs	= omap3xxx_dsi1_irqs,
+	.mpu_irqs_cnt	= ARRAY_SIZE(omap3xxx_dsi1_irqs),
 	.main_clk	= "dss1_alwon_fck",
 	.prcm		= {
 		.omap2 = {