openwrt/target/linux/lantiq/patches-3.2/0027-MIPS-lantiq-convert-dma-driver-to-clkdev-api.patch

From 56b484094fed84e4e76532895c5a692f896a9492 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 8 Mar 2012 11:21:08 +0100
Subject: [PATCH 27/73] MIPS: lantiq: convert dma driver to clkdev api

Update from old pmu_{dis,en}able() to ckldev api.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/lantiq/xway/Makefile.rej |   11 +++++++++++
 arch/mips/lantiq/xway/dma.c        |    6 +++++-
 2 files changed, 16 insertions(+), 1 deletions(-)
 create mode 100644 arch/mips/lantiq/xway/Makefile.rej

--- /dev/null
+++ b/arch/mips/lantiq/xway/Makefile.rej
@@ -0,0 +1,11 @@
+--- arch/mips/lantiq/xway/Makefile
++++ arch/mips/lantiq/xway/Makefile
+@@ -1,7 +1,4 @@
+-obj-y := sysctrl.o reset.o gpio.o gpio_stp.o gpio_ebu.o devices.o dma.o clk.o
+-
+-obj-$(CONFIG_SOC_XWAY) += prom-xway.o
+-obj-$(CONFIG_SOC_AMAZON_SE) += prom-ase.o
++obj-y := prom.o sysctrl.o reset.o gpio.o gpio_stp.o gpio_ebu.o devices.o dma.o clk.o
+ 
+ obj-$(CONFIG_LANTIQ_MACH_EASY50712) += mach-easy50712.o
+ obj-$(CONFIG_LANTIQ_MACH_EASY50601) += mach-easy50601.o
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -20,6 +20,7 @@
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
 #include <linux/export.h>
+#include <linux/clk.h>
 
 #include <lantiq_soc.h>
 #include <xway_dma.h>
@@ -216,6 +217,7 @@ EXPORT_SYMBOL_GPL(ltq_dma_init_port);
 int __init
 ltq_dma_init(void)
 {
+	struct clk *clk;
 	int i;
 
 	/* remap dma register range */
@@ -224,7 +226,9 @@ ltq_dma_init(void)
 		panic("Failed to remap dma memory\n");
 
 	/* power up and reset the dma engine */
-	ltq_pmu_enable(PMU_DMA);
+	clk = clk_get_sys("ltq_dma", NULL);
+	WARN_ON(!clk);
+	clk_enable(clk);
 	ltq_dma_w32_mask(0, DMA_RESET, LTQ_DMA_CTRL);
 
 	/* disable all interrupts */