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[33/35] davinci: da830/omapl137: Specify reserved channels/slots

Message ID 1262802737-6601-34-git-send-email-khilman@deeprootsystems.com (mailing list archive)
State Accepted
Headers show

Commit Message

Kevin Hilman Jan. 6, 2010, 6:32 p.m. UTC
None
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Patch

diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 63c330c..9a5342b 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -111,6 +111,29 @@  static const s8 da850_queue_priority_mapping[][2] = {
 	{-1, -1}
 };
 
+/*
+ * The following EDMA channels/slots are not being used by drivers (for
+ * example: Timer, GPIO, UART events etc) on da830/omap-l137, hence they
+ * are being reserved for codecs on the DSP side.
+ */
+static const s16 da830_dma_rsv_chans[][2] = {
+	/* (offset, number) */
+	{ 8,  2},
+	{12,  2},
+	{24,  4},
+	{30,  2},
+	{-1, -1}
+};
+
+static const s16 da830_dma_rsv_slots[][2] = {
+	/* (offset, number) */
+	{ 8,  2},
+	{12,  2},
+	{24,  4},
+	{30, 26},
+	{-1, -1}
+};
+
 static struct edma_soc_info da830_edma_info[] = {
 	{
 		.n_channel		= 32,
@@ -118,6 +141,8 @@  static struct edma_soc_info da830_edma_info[] = {
 		.n_slot			= 128,
 		.n_tc			= 2,
 		.n_cc			= 1,
+		.rsv_chans		= da830_dma_rsv_chans,
+		.rsv_slots		= da830_dma_rsv_slots,
 		.queue_tc_mapping	= da8xx_queue_tc_mapping,
 		.queue_priority_mapping	= da8xx_queue_priority_mapping,
 	},